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Operator
Greetings and welcome to the install Building Products 3rd quarter 2025 financial results conference call. (Operator Instructions) As a reminder, this conference is being recorded. It is now my pleasure to introduce Darren Hicks, Vice President of Investor relations.
Thank you. You may begin.
Darren Hicks - Vice President - Investor Relations
Good morning and welcome to Installed Building Products 3rd quarter 2025 earnings conference call. Earlier today, we issued a press release on our financial results for the 3rd quarter, which can be found in the investor relations section of our website. On today's call, management's prepared remarks and answers to your questions may contain forward-looking statements within the meaning of federal securities laws. These forward-looking statements are based on management's current beliefs and expectations. And are subject to factors that could cause actual results to differ materially from those described today.
Please refer to our SEC filings for cautionary statements and risk factors. We undertake no duty or obligation to update any forward-looking statement as a result of new information or future events, except as required by federal securities laws. In addition, management refers to certain non-GAAP and adjusted financial measures on this call.
You can find a reconciliation of such non-GAAP measures to the nearest GAAP equivalent in the company's earnings release and investor presentation, both of which are available in the investor relations section of our website. This morning's conference call is hosted by Jeff Edwards, our Chairman and Chief Executive Officer; Michael Miller, our Chief Financial Officer; and we are also joined by Jason Niswonger, our Chief Administrative and sustainability Officer. Jeff, I will now turn the call over to you.
Jeffrey Edwards - Chairman of the Board, President, Chief Executive Officer
Thanks, Darren, and good morning to everyone joining us today.
As usual, I will start the call with some highlights and then turn the call over to Michael, who will discuss our financial results in more detail before we take your questions.
With another quarter of record sales and profitability, 2025 has been another very encouraging year for IBP.
Our national network of branches continue to execute at a high level, delivering reliable installation services to large, medium, and small home builders. And commercial developers.
While local market dynamics can vary greatly across the country, our results highlight the benefit of IBP's scale, product, and end market diversity, and the trust we place in our branches to make the right operating decisions for their respective markets.
Although the 10-year US Treasury rate has come down since our second quarter call in August, home ownership remains incredibly expensive for most people, which we believe will remain the biggest challenge for our customers selling new homes in the near term.
Still, we are confident in the long-term fundamentals of the US housing construction industry, and we remain focused on growing earnings and cash flow while diligently deploying capital to shareholders.
Through the nine months ended September 30th, 2025, we paid nearly $78 million in cash dividends and repurchased approximately $135 million of our common stock, returning nearly $213 million of capital back to our shareholders.
In October we published our 2025 ESG report highlighting IBP's continued efforts to support environmental sustainability, employee well-being, and community engagement in pursuit of a more sustainable and equitable future.
Since our inaugural ESG report was published in 2021, we have made steady progress reducing our carbon footprint. We believe our efforts today are laying the foundation for a stronger, more sustainable future for our employees and people representing all communities.
Looking at our third quarter sales performance, consolidated sales increased 2% and same branch sales were roughly flat. In our largest end market, same branch new single family installation sales were down 2%. While adjusting to the pace of residential housing and commercial building construction in local markets, our branches did a tremendous job growing complementary product sales by a double-digit percentage relative to the same period last year.
Third quarter installation sales in our multifamily end market were down 7% on the same branch basis, but looking ahead, several markets are stabilizing and showing improvement. As of the end of September, contract backlogs at key branches have grown year over year, and we have secured jobs in geographic markets in which we previously had little or no presence.
Third quarter commercial sales in our installation segment increased 12% on the same branch basis from the prior year period. Our heavy commercial end market continued to be the dominant driver of sales growth in this end market, which more than offset weakness in our light commercial end market. Based on the growth in our heavy commercial contract backlogs, we believe heavy commercial sales and profitability are poised to remain healthy beyond 2025.
During the nine months ended September 30th, 2025, cash flow from operating activities increased 16% to $307 million which primarily reflected improvements in working capital management.
Year-to-date we have acquired nearly $60 million in annual sales. We remain disciplined in our approach to find well-run businesses that would make strategic sense, support attractive returns on invested capital, and fit well culturally. Our core residential installation and market remains highly fragmented with considerable opportunity for consolidation.
During the 2025 3rd quarter, we acquired a North Carolina manufacturer of cellulose-based insulation for homes, hydro mulch for erosion control, and composite materials used in industrial applications with an annual revenue of $20 million.
In addition, in October and November, we acquired a business with a value-added wholesale glass design and fabrication division and a retail sales and installation operation, primarily serving residential customers throughout the southeastern United States and annual sales of approximately $12 million. An installer of drywall and metal stud framing across a balanced mix of commercial and residential end markets throughout Wisconsin with annual sales of approximately $4 million. And an installer of insulation in a single-family, multi-family, and commercial structures across South Dakota, North Dakota, Wyoming, and Nebraska with annual sales of approximately $3 million.
Single family starts year-to-date through August 2025 have decreased by 5% from the prior year, while multifamily starts are up 15% for the same period. Looking into 2026, as is typically the case, the new residential construction outlook will be influenced by consumer confidence and buyer activity during the spring home selling season.
However, with persistent challenges from housing affordability, we are expecting residential housing starts will be flat compared to 2025, a level that is above the five-year average from 2017 to 2021. For individuals and families with housing affordability concerns or shifting lifestyle preferences. Newly constructed multi-family housing helps meet the needs of growing markets. Over the long-term, we continue to believe that the volume growth in our business is supported by a fundamental undersupply of residential housing and the gradual adoption of advanced building codes for the purpose of improved energy efficiency across the US.
We believe IBP continues to operate from a position of strength as we remain flexible in navigating any potential near term challenges.
Our national scale, strong customer relationships, experienced leadership team, and sales across product categories and end markets create a solid platform for IBP to serve our customers and meet their operational efficiency goals. Although broader macroeconomic uncertainty influences prevailing market conditions in our industry and in many others, we remain focused on profitability and effective capital allocation to drive earnings growth and value for our shareholders.
I am proud of our team's continued success and commitment to doing an excellent job for our customers. To everyone at IDP, thank you. I remain encouraged by the fundamentals of our industry, our competitive positioning, and am optimistic about the prospects ahead for IDP in the broader installation and complementary building product installation business.
So with this overview, I'd like to turn the call over to Michael to provide more detail on our 3rd quarter financial results.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Thank you, Jeff, and good morning everyone. Consolidated net revenue for the 3rd quarter increased 2% to a record of $778 million compared to $761 million for the same period last year. Same branch sales for the installation segment were flat for the third quarter. As a 12% increase in commercial same branch sales, more than offset a 3% decline in residential same branch sales.
Although the components behind our price mix and volume disclosure have several moving parts that are difficult to forecast and quantify, we reported a 1.5% increase in price mix during the third quarter.
This result was offset by a 4.8% decrease in job volumes relative to the third quarter last year.
It is important to note that our heavy commercial end market and the other segment results are not included in the price mix volume disclosures. Our heavy commercial, same branch sales growth exceeded 30% during the 2025 3rd quarter, including the heavy commercial installation sales. Price mix increased 4.4% while job volume decreased 4.5% during the 2025 3rd quarter.
With respect to profit margins in the third quarter, our business achieved adjusted gross margin of 34%, an increase from 33.8% in the prior year period.
The year over year increase in margin during the quarter was in part related to a shift in customer, product, and geographic mix.
Adjusted selling and administrative expenses were stable relative to the 2024 3rd quarter. As a percent of third quarter sales, adjusted selling and administrative expenses decreased to 18.2% compared to 18.5% in the prior year period.
Adjusted EBITDA for the 2025 3rd quarter increased to a record $140 million reflecting an adjusted EBITDA margin of 18% and adjusted net income increase to $86 billion or $3.18 per diluted share.
Although we do not provide comprehensive financial guidance based on recent acquisitions, we expect 4th quarter 2025 amortization expense of approximately $10 million. We would expect these estimates to change with any acquisitions we complete in future periods. Also, we continue to expect an effective tax rate of 25% to 27% for the full year ending December 31, 2025.
Now let's look at our liquidity position, balance sheet, and capital expenditures in more detail.
For the nine months ended September 30th, 2025, we generated $307 million in cash flow from operations. The 16% year over year increase in operating cash flow was primarily associated with improvements in working capital management.
Our third quarter net interest expense was $7 million compared to $8 million for the 2024 3rd quarter as lower interest income from investments was offset by lower cash interest expense on outstanding debt.
At September 30th, 2025, we had a net debt to trailing 12 month adjusted EBITDA leverage ratio of 1.09 times compared to one times at September 30, 2024.
This remains well below our stated target of 2 times.
At September 30th, 2025, we had $330 million in working capital, excluding cash and cash equivalents.
Capital expenditures and total incurred finance leases for the three months ended September 30, 2025 were approximately $20 million combined, which was approximately 3% of revenue. This is higher than usual as we accelerated vehicle purchases in advance of expected price increases.
With our strong liquidity position and modest financial leverage, we continue to prioritize allocating capital to achieve the best returns while distributing excess cash to shareholders.
During the 2025 3rd quarter, IBP repurchased 200,000 shares of its common stock at a total cost of $51 million and 700,000 shares at a total cost of $135 million during the nine months ended September 30, 2025.
At September 30th, 2025, the company had approximately $365 million available under its stock repurchase program.
As previously announced, IBP's board of directors approved the fourth quarter dividend of $0.37 per share, which is payable on December 31, 2025 to shareholders of record on December 15, 2025. The fourth quarter dividend represents a 6% increase over the prior year period.
With this overview, I will now turn the call back to Jeff for closing remarks.
Jeffrey Edwards - Chairman of the Board, President, Chief Executive Officer
Thanks, Michael. I'd like to conclude our prepared remarks by once again thanking IBP employees for their hard work and commitment to our company. Our success over the years is made possible because of all of you. Operator, let's open up the call for questions.
Operator
Thank you. (Operator Instructions) Steven Kim, Evercore ISI.
Aatish Shah - Analyst
Hi, this is Thaw for Steve. Thanks for taking the question.
I just want to touch on, how you see backlogs for multi-family and commercial, and do you still see a multi-family rebound in one queue and then on the commercial side, are you seeing any delays there?
Any any caller there would be helpful, thanks.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
So this is Michael on the multi-family side as we talked about really in the 1st quarter and the second quarter, we expected through the rest of this year continued headwinds, which I think, we saw in the 3rd quarter, although our team has done a phenomenal job. Of outperforming relative to the market, we believe they will continue to do that as Jeff mentioned in his prepared remarks we're seeing in certain markets building of backlogs in those markets as well as gaining share in new markets for ourselves. So for us the multi-family story continues to be intact in terms of us strategically gaining market share, not just in insulation but in the complementary products as well and you know as we. Pretty much everyone on this call would know that multi-family starts have performed pretty well this year because of the lag time from, start to install on the multi-family side. We don't expect to see any benefit of that starts growth or the share gains that we're experiencing in multi-family until 26. It's probably going to be more weighted towards the back half of 26 than the front half of 26. So, really a lot depends on, the trades that come before us to, get their aspects of the trades done, but. We are seeing, continuing to see good bidding activity and are surprised actually some markets like Florida, which is, I think everybody knows is probably the weakest residential market right now, is seeing some actually decent multi-family development so we feel good about that in those markets on the commercial side.
As we talked both last quarter and the 1st quarter, really the story there is the heavy commercial business which has performed exceedingly well and has offset the continued weakness in the light commercial business, although the light commercial business is starting to be less negative in part because it is the comps are getting easier because it's been down for such an extended period of time. As we don't have nearly as much visibility into the light commercial business as we do the heavy commercial business. We feel very good that the heavy commercial business is going to continue to deliver strong top-line and bottom line results, but it's not clear yet when the light commercial business is going to inflict inflect positively, and it'll really be dependent upon the inflection in the single family market.
Stephen Kim - Analyst
Hey Mike, it's Steve Kim. Just to follow-up, I think last quarter you had suggested that we might see the multi-family business rebound as early as 1. I think you had said at that time that maybe you were seeing the comps sort of accelerate or something. And so just wondering, did anything, change to sort of push that back you're now sort of saying maybe back half of the year. So just not to nitpick too much, but just want to make sure we don't miss something that you're trying to communicate about what you're seeing about with respect to your backlog timing.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
No, it's just being cautious and also, as we are influenced significantly in terms of our ability to do install work based upon the trades that come before us so it's really the ability of the trades to come that come before us to get their work done so we can get there. And while we're not seeing across the board project delays, there have been in certain select markets some project delays, one of the issues potentially could become for the trades that come before us is we're all expecting because of the starts numbers and what's happened from a completions perspective and the significant decline in multi-family completions is that. If there is a significant inflection, which the starts numbers would indicate, you can start to have elongated cycle times on the multi-family side. So, we're just trying to factor some of that potential into our thought process as it relates to 2026.
Stephen Kim - Analyst
Got it. Do you guys anticipate that if there were to be any elongation in cycle times like you just described that that would be more on the labor side or would be more on the, product, availability side?
I assume labor.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah, it is definitely labor, and I'm not talking, just to be clear, I'm not talking about our ability to source the labor or our ability to source material, but I definitely think that some of those, the earlier trades like, the framers and foundation guys might experience a bit of an issue from a labor perspective.
Stephen Kim - Analyst
Got you. Last one for me is you talked about margins benefiting from mix. I think you said product geo geographic, and customer. Can you, talk a little bit about the geographic? Was there a noticeable, relative strength or weakness, across any geographies worth calling out?
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yes, I mean, we definitely benefited from our historical overweight, if you will, to the top half of the country, which has done, fairly well relative to the bottom half of the country. I mean, clearly the weakness that we're seeing in the single family market, or lack of inflection I should say, in the single family market is really driven by the entry level, right? We're seeing good solid performance at the semi custom, regional and local builder level which, as everybody knows, tend to be centered more from a percentage of overall revenue in the top half of the country. So just to give you some kind of regional flavor for us, and I'm using this based upon the census regions, not the way that we manage the business, but based on the census regions. So the Midwest and the Northeast represent roughly 30% of our new residential installation sales. So that's both single family and multi-family. In the quarter, those regions sales for single family, multi-family were up low single-digits.
The South, which is our largest region, is about 45% of residential sales, and it was essentially flat. In the quarter, the West region, which is roughly 20% of our residential sales, was basically down very low single-digits. So clearly there's different performance across, the different regions, and we are definitely benefiting from the fact that we have such strong market share in the Midwest and the Northeast. That being said, and I don't want to go into too much detail necessarily on this question, but or the answer to this question, but our teams, even in the South and the West have performed extremely well given the headwinds that they're facing and the market conditions that are there, so. We're really we can't shout out enough how proud we are of the field team and the local management and their ability to, continue to manage through what is, a pretty challenging market environment.
Stephen Kim - Analyst
Great thanks so much guys.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Sure.
Operator
Michael Rehaut, JP Morgan.
Michael Rehaut - Analyst
Thanks, I appreciate you taking my questions. First I just wanted to get a sense, you highlighted in terms of your end market demand kind of benefiting perhaps from price point and geographic exposure.
I don't know if it's possible to TRY and triangulate, you had a competitor, yesterday talk about their end market's down low double-digit.
Given your different mix, based on customer, based on geography, I'm just trying to get a sense of.
Whether or not you feel like, that's down double-digits is.
Kind of the right framework for your set of exposures and you know if you're able to kind of triangulate.
You know what your end markets, what your markets did, or have been doing this year or during the 3rd quarter even.
If you feel like you've outperformed that mark.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Well, as we said in the answer to the previous question, clearly we benefited from the regions and our exposure to certain regions that have performed well relative to the overall market. I would say that we have been very successful with our customers, particularly the regional and local semi custom custom home builders in our markets to work with them to.
Provide for us a, very solid base from a revenue perspective, and we feel very good about our ability to continue to do that. I mean, no doubt there are, headwinds and pressures, particularly as it relates to the entry level market, but our team is doing an excellent job of focusing on. The right customers in the right markets and, working to make sure that we offset the challenges that the current market environment is providing.
Michael Rehaut - Analyst
Okay, so in other words, better markets, but any type of sense of what your markets or, how they did during the quarter relative to what you were able to do?
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah, I would say that.
Not in every single market, but if we, and I think the results clearly reflect this, the team performed much better than the market opportunity that was in front of it. They did that last quarter. They did that this quarter, and so far going into the 4th quarter, we feel very good about their ability to continue to do that. I mean that being said, I mean, obviously we will continue to see pressure, particularly in the single family entry level market which is, heavily weighted towards the bottom half of the country or the smile as people refer to it, but while we don't see the inflection yet in the single family entry level market, we're hopeful and encouraged that, the spring selling season. Will be certainly more constructive, next year than it was this year, and this is Jason. I would add to that we've also seen very strong performance in our other complementary products, so the sales growth is not just housing demand focused, it's the strength that we've had in growing those sales organically.
Which is a really important point, right? And we continue to improve the margin on those products now they're still less they're lower than insulation considerably lower than installation and as we've talked in previous quarters when the. Sales rate of the complementary products is higher than the sales rate in installation. It is a negative to gross margin, but we're making tremendous progress from both the sales perspective, as Jason pointed out, and a marketing perspective.
Michael Rehaut - Analyst
Yeah, no, I appreciate that that point. It's actually kind of leads me into my second question around pricing, price mix, and gross margin. So you know you're able to do another, modestly positive price mix in the quarter. I think that's kind of, a positive surprise relative to perhaps some concerns around pricing maybe reflects your own more stable demand backdrop, but I'd love to get a sense of.
What insulation pricing did during the quarter? How much of the price mix was price versus mix, and how does it kind of.
Impact your outlook for now you have a couple quarters and several quarters actually in the last year and a half where you're more or less at that 34% range, at the high end of that 32 to 34 and your ability to sustain that type of margin level.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah, so there's two parts to that question on the price mix growth. A lot of it, excuse me, was mixed. And the mix was really that our rate of sales growth with the, regional local custom builder was better than it was with the production builders, I mean, which is obvious based on their Q3 results. I mean, the reality is that given our solid share with the production builders which tend to be very heavily weighted towards entry level. Our sales with them trend with their sales basically, fairly closely, so as a consequence, the benefit that we saw from a price mix perspective in the residential side was really driven by the outperformance, if you will, on a relative basis with the regional, local, and custom builder. Which is everyone knows has a much higher ASP than you know the entry level and because of our regional difference relative to our regional performance in the top half of the country, building codes and energy codes are much higher in that part of the. Country, it also tends to be a basement market, which that means that we're insulating the basement, we're insulating to a higher coat. It also tends to be on average a larger home, so you have a much higher average job price in those markets than you do in the bottom half of the country. So as a consequence, all the things that we talked about from the regional benefit came into to benefit price mix growth as well.
And then on the gross margin part of your question, the, there's a couple of things that are really helping gross margin and then also some things that were headwinds to gross margin. So and we've talked about this in previous quarters, but even though the complementary products saw margin improvement of about 100 basis points in the market, as I mentioned earlier, they still are at a lower gross margin than.
Insulation, the higher rate of growth there then creates a headwind to gross margin. Also, our other segment, which includes distribution manufacturing business, naturally has lower gross margins, and it also saw decent growth in the quarter, thus laying on overall gross margins combined, that had about a 60 basis point headwind to gross margin. But that was more than offset with 100 basis point gross margin benefit from the outsized performance from the heavy commercial business. So those two things were more than offset and helped us stay at that high range of the 34% adjusted gross margin. I will say that.
The benefit that we received from the heavy commercial business in gross margin at 100 basis points this quarter, we don't expect to see in the fourth quarter of this year, not because they won't continue to perform well, but because they had already raised. Their gross margin up by the 4th quarter of last year to sort of where that where it is today, so we don't expect any incremental benefit coming from the heavy commercial business in the 4th quarter but we still feel very confident that we will operate in that 32% to 34% adjusted gross margin range on a full year basis.
Operator
Susan Maklari,h Goldman Sachs, please.
Susan Maklari - Analyst
Thank you. Good morning, everyone.
My first question is, good morning. My first question is following up on the gross margin comment, Michael. It seems like part of this is that you're doing a good job at being able to preserve the core margin that you're realizing on your installation of.
Installation even with the pressures that are coming through across the different regions and types of builders, can you talk about how those conversations are going and how you're able to leverage the value add and perhaps the growth in the ancillary products that Jason mentioned in there to preserve that core margin?
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah, Sue, just to be clear, it's the field team that's doing it and they're doing an incredible job.
I don't think anybody in this room feels that they can take responsibility for what a great job they're doing, but I think, those conversations are definitely challenging right now given the softness, particularly at the entry level. But the reality is is that we provide an installed solution, so we're not providing just labor, we're not providing. Just material we're providing installed solution we're solving problems for builders, and they absolutely appreciate the value that we're providing and you know this has been a continuous story for us, quite frankly, in terms of the team's ability to continue to do that. We, as we've talked, I think on multiple occasions about the benefits of a software environment. On the uptake of the complementary products we're absolutely seeing that the team is doing, what we would have expected them to do. We think that we don't think we know that our incentive compensation systems are designed, quite frankly, to drive out performance in a challenging market because so much of our branch managers compensation is tied to the profitability of their location in fact. I mean, really, when you think about it, almost every employee within IBP has some portion of their compensation tied to profitability, and we think that drives our performance in a challenging environment.
Susan Maklari - Analyst
Yes, okay, thank you for that. And then turning to SG&A, it seems like you're also doing a nice job at controlling those costs in this kind of an environment. Can you talk about the progress that you're making on the reductions that you had mentioned earlier this year and anything else that's flowing through there that we should be aware of?
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah, thanks for that question, Sue.
Definitely we're making very good progress. We still have progress to make. I mean, to a large extent the the efforts that the whole team is making to control the G&A that we can control is to a large extent being, offset unfortunately by some of the things that aren't immediately under our control. Like insurance, and that's insurance at all levels, but the team is really working very hard to, lower G&A expenses, and our objective is that we will offset the natural, inflation in some aspects of G&A and some of the headwinds that we're experiencing on the insurance side of G&A. With the savings that we're continuing to experience on the G&A side, but it's really at this point an opportunity for us to maintain the growth or to, use our belt tightening if you will, to offset some of the costs that we don't directly or immediately control.
Susan Maklari - Analyst
Okay, thanks for the color and good luck with the quarter.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Thank you.
Operator
Philip Ng, Jefferies.
Philip Ng - Analyst
Hey guys, congrats on a really impressive quarter. I guess, Michael, that was really helpful color when you shared with us just now on, your trends in the Southeast and the West, which was actually very stable, clearly outpacing the market handily. Was there a big pivot this year in terms of your go to market strategy to kind of lean harder? In some of these custom and regional builders, or you've always been generally a little higher there just because it does feel like the team's really outperformed here.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah, I think that's a fair assessment, Phil, in the sense that, our team looking forward, obviously working with their production builder entry level builders saw the weakness that the market was going to present and really saw that as an opportunity to to work more closely with some of the other customers in that in those markets to offset what they saw as the headwinds coming. And the team's done, a great job of performing relative to that. Now, the reality is that there continues to be, some states that are very weak. We talked about Florida last quarter, and Florida continues to be quite weak, although, as I mentioned earlier, we're seeing some encouraging signs on the multi-family side in Florida.
But it continues to be very weak. Texas, the state that people call out, which, Texas is, our second largest state, it definitely has pockets of weakness, but, we believe our team is doing a good job there of trying to offset some of that weakness by changing a little bit of the customer mix and also cross selling the other products. And quite frankly, Texas is really one of the markets that's been very successful for us on the multi-family side. The CQ team, which is our, centralized multi-family, operation that, covers around 40% to 45% of our multi-family revenue, has really, outperformed in Texas and allowed us to gain a solid market share in that market but in a profitable way.
Philip Ng - Analyst
Okay, super. And then Michael, I think what you just said earlier, October trends November sound pretty good, and you're still outperforming pretty handily. Why did I hear you correctly, and I know you don't give guidance. Part of this question is just, most of your peers have seen and expect demand to really soften in the back half and perhaps these declines moderate going into next year. Your trends have been very different from everyone else, so I'm just really curious. Is that decline to come, or this is potentially the trough, especially as we go into next year.
Perhaps rates coming in, the consumer getting a little better, kind of back on the mend. Just want to better appreciate, some of the nuances as it relates to your portfolio.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah, and thanks Phil for reiterating that we don't provide guidance and in my answer to your question, I don't mean this to be guidance, it's just publicly available information that you know I'll use to sort of triangulate a little bit on our expectations for the 4th quarter. So I think it's a lot of people on the call know that you know roughly 55% to 60% of our total revenue is new single family construction. Of that, 55% to 60%, roughly 27% to 30% of that revenue comes from the public builders. If you look at the guidance that those builders provided for the fourth quarter, and as I said in the answer to an earlier question, our sales to them kind of track their sales basically they.
Their numbers right they're publicly available numbers which suggests that their sales are going to be down on a combined basis roughly, high single-digits.
And that high single-digit decline would be roughly 400 to 500 basis points higher than the typical seasonal decline from the Q3 to Q4 because Q4 is seasonally a lower, typically lower revenue month across the board within building products and you know we expect that that extra 400 to 500 basis points. Of revenue headwind that they're forecasting, we will feel as well in that, portion of our business. So to more succinctly answer your question, we do think that the 4th quarter is going to create pressures, multi-family completions, we don't expect to inflect positively, in the 4th quarter, so there's definitely going to be headwinds, but. We have confidence, based upon, what the trends that we're seeing and what we've experienced over the past two quarters that our team is going to perform, better than the overall market opportunity, but they're definitely going to be. Headwinds coming into the 4th quarter and the 1st quarter on the new residential construction side. We feel very good though, and I'll reiterate this probably 10 times on the call today. We feel very good about what the heavy commercial business is doing and is really helping to offset some of those residential construction headwinds.
Philip Ng - Analyst
Okay, appreciate all the great color.
Thank you so much guys.
Jeffrey Edwards - Chairman of the Board, President, Chief Executive Officer
Yeah.
Operator
Mike Dahl, RBC Capital Markets.
Michael Dahl - Equity Analyst
Hi, thanks for taking my questions. Just want to follow-up on that last point and just make sure we're understanding when you talk about the high single-digit decline, are you talking about their delivery guides or something else? Because I think the starts commentary has been pointing to more significant declines in starts understanding that you guys have some.
Differences in in lag timing, right? I just want to make sure we're understanding what you're you're saying and then could you could you give us any, insight into then on the private side, are those customers of yours seeing a significantly different trends than what you just articulated for the public, or are they kind of starting to follow suit into your.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah, so my comment around the public's was more closings versus starts, right? So, and they're two different things as we all know, as it relates to the. Kind of custom semi custom and regional and local builders, I would say that the commentary is generally flat, where they're not seeing, and obviously that's, market by market, but I, if I had to put it in a kind of broader context, it would be that the market is flat, it's not getting worse, but it's also not getting better.
Michael Dahl - Equity Analyst
Okay, got it. That's helpful. And then I shifting gears back to the gross margin dynamic, appreciate the color on the heavy side and that you're now competing against, the step up there. So when we think about the year on year impacts for 4th quarter, I think you articulated kind of some of the some of the moving pieces around mix, but when we think about that 4th quarter. Can you just dial that in a little better in terms of all, we don't have the 100 basis point tail and we do have some of the headwinds, some other, how do those headwinds in your mind stack up compared to what you just articulated for the 32 dynamics.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah, I mean we would expect that we would I mean it's interesting that we call out gross margin headwinds because the businesses are performing, those businesses perform very well, right? And they're improving margin, but just that they're at a lower gross margin, to start with just creates that sort of headwind. We would expect that trend to continue through the 4th quarter where the other products, the other segment which is the distribution manufacturing business. Would continue to grow at a higher rate than the insulation business, so as a consequence, we believe that headwind will be there, and then, as I said, and you pointed out, we don't expect to see that much of incremental gross margin benefit from the heavy commercial business, in the fourth quarter and just as a reference point in the fourth quarter of last year, the adjusted gross margin was 33.6%. so again, well within our 32 to 34 full year range that we've talked about.
Yeah, okay, thank you.
Operator
Jeffrey Stevenson, Luke Capital Markets.
Jeffrey Stevenson - Analyst
Hi, thanks for taking my questions today and congrats on the strong results.
So I wanted to dive deeper into the double-digit growth and complementary products which is great to see. Would you call out any products that are outperforming and as most of the strength and, better single family markets, such as the Midwest.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
That's part of it, but, also keep in mind that within the complimentary bucket if you will, is primarily the heavy commercial business is primarily in the complementary product bucket, so they're definitely helping, from a growth perspective in those products, but we're definitely seeing it. On the you know residential construction side of of the business as well, particularly on a margin improvement basis so we feel good about you know what the team has been able to do there so.
And to answer your question specifically, I mean there's not, I would say that.
I wouldn't highlight any one particular of the complementary products as being any better than the others. It's really a uniform story in terms of their growth with the one exception that that growth that Jason talked about is definitely being helped by the heavy commercial business.
Jeffrey Stevenson - Analyst
Okay, no, I understood, Michael, and.
Obviously, a lot of discussion over the, outperformance, with the regional and local builders over the national, public builders, and, as you look at your backlog and moving forward, could you, would you expect, those, mixed tailwinds to continue, especially given the softness of the, entry level price point right now.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yes, we would expect that to to be the case until the entry level influx and we're hoping that that happens in the spring selling season.
Got it thank you.
Operator
Keith Hughes, Truist Securities.
Keith Hughes - Analyst
Thank you. Just a level set on the commercial about $135 million revenues in the quarter. What is the split right now between heavy and light?
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
So on the install side, which is just a slightly different than on from the total IVP perspective on the install side heavy commercial is around 11% of revenue and the light commercial is like 7.5% of revenue.
Keith Hughes - Analyst
Okay, and.
What what is the dividing line between light and commercial? Is that, is there a job size or is it a product or how do you define that?
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
I mean, the simplest way is that light commercial is framed construction and heavy commercial is steel and concrete.
Keith Hughes - Analyst
Okay, and from a growth rate pers when if you look longer-term I think you want to do more in this market. What do you think has the bigger TAM that you could reach?
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Oh, heavy commercial without a doubt. I mean our market share and heavy commercial is.
In the markets that we're in it's great, but it's very solid we have so much geography that's open to us and you know now that we have so much confidence in the team and the team is working so well that you know we see a lot of opportunity there on an acquisition opportunity and then also potentially on a de novo basis but that's going to be very selective.
Keith Hughes - Analyst
And what's stopping really accelerating the the acquisition activity there it seems like a great business for you just seems like we would see more deals or maybe that's to come. What's what's kind of your view of the pacing I guess is my question.
Jeffrey Edwards - Chairman of the Board, President, Chief Executive Officer
This is Jeff, so I would say H1stly and unlike what we would say about our residential business, I think the potential for organic growth by us following customers and developers and general contractors who we have relationships with. Actually in this case outweigh maybe even some of the commercial acquisition activities. It's not to say that it isn't there, but I wouldn't be surprised if we don't, end up moving more on the organic side than we do on the acquisition side in that part of the business, not to downplay that there aren't opportunities. It's just I think it may happen organically.
Keith Hughes - Analyst
Final thing, it lends itself to organic growth. What dynamic of it lends itself to organic growth more than say your, residential insulation business?
Jeffrey Edwards - Chairman of the Board, President, Chief Executive Officer
I don't want to call the customers necessarily stickier than they are on the residential side because we also make it a point of calling our cus our residential customers because of the jobs that we do for them, the work that we do for them, the quality, etc. We provide it's being sticky, but I do think, maybe the universe of contractors that can perform the services that we perform on the commercial side, especially the bundling of that.
But I think in addition to that it's just we'll be able to follow developers and builders to other large metro areas that we're currently not in with heavy commercial.
Keith Hughes - Analyst
Okay, great, thank you very much.
Operator
Colin Verron, Deutsche Bank.
Collin Verron - Research Analyst
Good morning.
Thank you for taking my questions. I just wanted to start on price/cost a little bit. I appreciate all the color on the moving pieces of mix on gross margin, but any colors of of price/cost is tracking and more specifically within, the residential installation business and the commercial installation business.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Well, I mean, I think on the commercial side, there's definitely a difference between the light commercial and the heavy commercial as we've talked about the light commercial business has been weak for multiple quarters at this point, so obviously that can lead to some pricing pressure. I would say on the on the single family side really where there's pricing pressure and we would expect it to continue until the market inflects positively is it's more regional in nature and more at the entry level that we've been talking about I would say at the, custom semi custom. Our top half of the country, well, obviously it's a competitive environment. The competitive challenges are not as significant as they are in the parts of the market that are softer. I mean, it's a logical supply and demand sort of response, but at the same time, our team is doing an excellent job of. Working hard to maintain price and Provide for the builder high level of service that they will value and pay a fair price for we are constantly working to be more efficient for our builder customers and to provide them as much value as possible but you know there is a fair balance between you know what we get paid for and the installed solution that we provide.
Collin Verron - Research Analyst
That's helpful color and I just want to touch on the distribution and manufacturing side. I know it's a small piece of your business, but the growth is really strong in the quarter and kind of contributed to growth from an as in contributed to growth at an outside pace, outsized pace relative to its size. I guess there's any colors to sort of what's going on there and sort of the trajectory of that business as you look out a little bit further.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah and keep in mind some of the growth that you or a portion of the growth that is in that other segment is coming from our internal distribution efforts which we've talked a lot about and it's that's really coming to fruition and you can see the growth rate in that in our segment disclosures that just shows the significant growth of intercompany sales. And we estimate that year-to-date and in the quarter that the internal distribution efforts provided an almost 50 basis points benefit to gross margin.
Jeffrey Edwards - Chairman of the Board, President, Chief Executive Officer
We're just executing on a plan that we've talked about.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
For years.
Jeffrey Edwards - Chairman of the Board, President, Chief Executive Officer
Multiple, yeah, years. I was going to say multiple quarters, let's say multiple years.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah, so it's the benefits that are coming to fruition. We still have a lot of work to do, but the team is working really well together and we finally have gotten, I think.
A wide acceptance among the branches to support the effort of internal distribution.
Collin Verron - Research Analyst
Great. Thank you for the color.
Operator
Ken Zener, Seaport Research.
Kenneth Zener - Analyst
Good morning everybody.
Morning morning.
It feels like we were looking at a horse and then the light was turned on and you're more like a zebra relative to the regional and customer mix so first question is that good for customer mix.
It is what it is.
So for customer mix Generally speaking, I think you talked about, the public's about 30%. Can you talk to the dollar generally, Michael, I know you've disclosed a lot today, so I don't want to press you, but what is generally like kind of the dollar spread between like that public, which I think people understandably characterized you guys as opposed to the 70% that's actually going to that.
Private, more custom.
Bucket since it's the majority, and then can you describe the demand dynamics of those builders buyers, so you know if it's custom, it's not going to be as tied to affordability entry, it's going to be more non-spec, etc.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah, that last part of your com comment or question there, Ken is definitely accurate. I would say that the average job price for the regional and local builder because of the type of product that they're building. And I'm not talking on a per square foot installed basis. I'm just talking about the average job price, right? So because of the type of product that they're building, because they're generally speaking going to have a basement which adds another level of work for for us to insulate, they those average job prices are multiples of what the average job price is for an entry level home.
Kenneth Zener - Analyst
Okay, and.
The trying to think where my question here.
Given that multiple difference, is that something.
Well, I guess I'm going to TRY this into my second question. The census data, besides the fact it's not getting published right now, is highly inaccurate for the markets that the public builders are in. The smile, because most of the builders don't respond to the census. Do you feel that the census data is more accurate in those non-smile states relative to the kind of the starts and the activity that you've seen?
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Boy, I think we would have to go back and look at the information over an extended period of time to see if, the adjustments that they make to the information is greater in the smile than it is in the top half of the country.
I, yeah, I have no idea, and we've never really looked at that.
Kenneth Zener - Analyst
I mean, yeah, it's never been as apparent.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Yeah we sort of take it at face value for what it is obviously we don't run our business based upon what the Census Bureau is reporting, so.
Kenneth Zener - Analyst
And then relative to that given your.
And we very much appreciate your commentary relative to the census.
Boundary definition.
Given that so much of your business is to the non-public and that mix is geared more towards a higher total take.
It seems to me that's the biggest factor as we entered 25 for expectations for your business, in addition to your cost controls. Is there a reason that the base of your business is going to be.
Detrimental next year because it seems if you have more of your mix in these more attractive markets where you know there's better job growth etc. That you know we could continue to see kind of the disconnect.
Relative to, census data, would next year, it simply tied to your product mix and your regional mix, is that a fair assessment that the spread we've seen this year would persist in the next year.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
I mean, obviously, well, one, we don't provide guidance, two, obviously it depends upon what what ends up happening in the market. What I would say though is that, while the entry level market right now, as we all know, is challenged, and it's a challenge, challenging operating environment for there. And yes, our customer mix and regional mix is benefiting or helping our outperformance. It's not the only reason we're outperforming. The team is doing the outperformance. But it is definitely helping in that situation. I would say though, and was one of the reasons why we're so excited about the business and continue to be, is that when the inflection comes in the entry level market, we are completely set up to benefit from that inflection upward, and we think that that will come at the same time when the regional and locals are going to continue to perform as well. Now does that mean it'll put. Pressure on our price mix disclosure absolutely because we'll be seeing an acceleration in that entry level market but at the same time as we've talked about before, even though it's at a lower job price considerably lower gross margin, the cost to serve is considerably lower as well, and the EBITDA contribution margins on that business is solid so.
I don't think or I know we're not ready to call when that inflection happens we're hoping that it's the spring selling season, but whenever it happens, we're ready to work with our customers to make sure that we can all capitalize on the opportunity that that will present.
Kenneth Zener - Analyst
Thank you very much, team. Bye-bye.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
Thanks, Ken.
Operator
Adam Baumgarten, Vertical Research Partners.
Adam Baumgarten - Analyst
Hey guys, thanks for taking my question. Just on the multi-family business, I know when things started to slow and you have a pretty unique business within that you guys talked about sort of the white space geographically you had and some organic opportunities to expand there in a weak market. I guess any update there on how that's going if you're starting to see some benefits from maybe a renewed effort to kind of go out of your core markets.
Michael Miller - Chief Financial Officer, Executive Vice President - Finance, Director
That is a great question and I appreciate you asking that because yes we are making very good progress on that front. It's not translated into revenue yet but it's translated into backlog. And you know the team is doing a really good job of, as Jeff said in his prepared remarks, going into new markets and opening up those new markets for for multi-family, and we really believe we have a differentiated model slash opportunity for the GCs on the multi-family side, and we'll continue to strategically and methodically pursue. Continued market share gains in multi-family. I mean, H1stly for us, the multi-family story, as we've talked before, it's a lot about us catching up from a market share perspective to where we should be, because we really lag behind in a lot of markets, particularly markets in the smile. We lag behind from a multi-family perspective because we were so focused on the strong single family opportunity.
Okay, got it thanks a lot guys.
Operator
Reuben Gardner, the Benchmark Company.
Reuben Garner - Equity Analyst
Thanks, good morning, guys, and congrats on another strong quarter. My question and apologies if this has already been discussed. I had to hop on late, but just curious on the current M&A environment. I know you picked up a couple of, kind of specialty, product categories, of late, but curious. On what the environment is like for for some of your smaller installation peers and then also the likelihood that we could see something larger or maybe even in a different vertical in the near or medium future.
Jeffrey Edwards - Chairman of the Board, President, Chief Executive Officer
Great, this is Jeff, and I'm glad you asked that question. So, I think the environment from a, acquisition perspective is on both small guys, the ones that are kind of regular way as we, you would usually call them, is not dissimilar that it's been really over the last, I don't know, 20 plus years. Like we said all along their deals are kind of lumpy. We did make an effort to kind of do some add on, kind of bolt on deals which. You've seen some of those flow through, but we're actually pretty excited about some of our kind of regular way both in size and in terms of quantity kind of deals that we have in the pipeline currently. In addition, we continue to look at kind of what we would call adjacent areas to the business, still interested pretty seriously in, potentially commercial roofing and other, areas where we would be installing products that have similar characteristics to the things we already install.
But I guess also going back to Keith's question, I may have at least interpreted the question more narrowly than the way he asked it, which is also kind of a lead into what you asked also, and that is when I said that there wasn't maybe the avenue for acquisitions on the heavy commercial was kind of more organic or was going to be constrained on the acquisition side. I was interpreting at least the question being asked specifically to the products that that that Alpha installs currently. And I think we feel pretty good about our ability to kind of chase the things that we do well as alpha organically now there are definitely other product lines, that alpha is not in, but I would categorize those more as adjapancies that we could get into on the heavy commercial side in in that particular area. We're very excited about what our prospects have in front of us.
Reuben Garner - Equity Analyst
Great, thanks, Jeff. Thanks guys, and good luck to the rest of the year.
Jeffrey Edwards - Chairman of the Board, President, Chief Executive Officer
Thank you.
Operator
I would like to send this letter to just in remark.
Jeffrey Edwards - Chairman of the Board, President, Chief Executive Officer
Thank you all for your questions. I look forward to our next quarterly call.
Thank you.
Operator
This concludes today's teleconference. You may disconnect your lines at this time and thank you for your participation.