HVAC Private Equity Value Creation Calculator
The EBITDA Bridge for Residential HVAC Deals.
For private equity platforms, add-on teams, and operating partners looking at an HVAC acquisition. Put in the target’s numbers and see which operating levers the seller never built, what closing each gap adds to EBITDA, what that is worth at exit, and what to fix in the first 100 days.
Example numbers loaded. Replace with the target’s.
The deal
Axial’s HVAC median at $1M to $3M EBITDA is 4.48x.
Capstone’s HVAC services average, 2024 to mid-2026. Assumes exit inside a larger platform.
After labor, parts, and equipment. Applied to added revenue.
The phone
Service and repair, not replacements.
Replacements
Across all revenue, volume held.
Customers and members
Membership fee plus the extra service members buy.
Value created at exit
How the EBITDA bridge works.
Each lever
The gap between the target’s rate and the benchmark, turned into added jobs, times the ticket, times gross margin. Pricing drops straight to EBITDA. Membership counts members added over the hold, net of renewals.
Value created
Exit EBITDA times the exit multiple, minus entry EBITDA times the entry multiple. Split into what operations added at the entry multiple and what the move from entry to exit multiple added.
Fix-first order
Levers that move in weeks with no capital come first: the phone, the replacement presentation, and price. Every slower lever runs through them. Membership comes last because it compounds for years.
What this calculator leaves out.
On purpose, so you know where the number is soft.
- Overlap between levers
- Booking more calls also creates more replacement opportunities. The bridge does not count that, so it runs conservative.
- Cost to close each gap
- Training, a CSR lead, a comfort advisor, marketing for the membership offer. The bridge shows the prize, not the budget to win it.
- Debt, fees, and returns
- Enterprise value only. Debt, fees, and the timing of cash flows decide equity returns, and they are specific to your deal.
- Exit multiple
- A company this size sold on its own trades near the entry range. The higher exit multiple assumes it is sold as part of a larger platform.
The gaps a seller never fixed are the fastest ones
The phone, the follow-up, the replacement presentation, and the marketing that only worked because the founder was on it. Those are the first things that break after close and the first things that can be fixed. Text me the target’s numbers and I will tell you where I would start in the first 100 days.
Henry “Hank Hugh” Hernandez, CEO
Special Operations, 75th Ranger Regiment
HVAC Growth Audit. Free.
Want it run on the real records?
A calculator works on the numbers you have. The Growth Audit works on what the call log and job software actually say, by channel, and shows which of the seven steps between a search and a booked job is leaking, and how many jobs it costs.
- Cost per booked job, by channel, from your own numbers
- The step that is leaking, and how many jobs it costs you
- What it takes to move it, and the next step if you want one
Start here. 2 minutes.
3 questions to start. Your answers stay between us.
Where value comes from in HVAC private equity deals.
Most HVAC value creation stories rest on two things: buying smaller companies at a lower multiple than the platform will eventually trade at, and growing EBITDA while you hold them. Capstone Partners counts 47 sponsor-backed HVAC services deals so far in 2026, 38 of them add-ons, and notes that smaller bolt-on acquisitions typically trade at lower multiples than platform deals.
Source: Capstone Partners, HVAC Services M&A Update, July 2026
The multiple you enter at is set by the size of the target. Axial’s HVAC deal data puts the median at 3.12x EBITDA under $1M, 4.48x from $1M to $3M, 5.88x from $3M to $5M, and 7.02x above $5M. The operating half of the story is where the target’s gaps sit, and for platforms running several brands, where marketing across several HVAC locations either scales or splinters.
Source: Axial, HVAC business valuation data by EBITDA size, August 2025
The gaps are usually in the same places. The average HVAC company books about 38% of inbound calls, against about 59% at shops with 25 or more technicians. Contractors who present 4 or more options close 52% of replacements, against 42% with fewer. Average shops sign 15% to 25% of new customers to a membership, and top performers sign 40% to 60%.
Sources: ServiceTitan call booking data, 2022; ACCA and Farmington Consulting, 2025; ServiceTitan membership research, November 2025; via AnchorWorks 2026 HVAC Revenue Benchmark Report
The first two are phone and presentation problems, which is why they move fastest. Missed and unbooked calls are the work of answering, routing, and booking automation. Where the calls come from, and what each booked job costs by channel, is what the lead-to-booked-job calculator and cost-per-customer calculator show on their own. And if the target’s growth depended on the founder’s marketing, lead generation that runs on its own tracking is what keeps it going after close. For the seller’s view of the same levers, see the HVAC business valuation calculator.
Questions buyers ask.
Why is private equity buying HVAC companies?
Recurring revenue and embedded customer relationships. Capstone Partners points to both as the appeal of HVAC service companies. On Axial, private equity’s share of HVAC deals went from 8% in 2023 to 23% in 2024.
What multiples do private equity firms pay for HVAC companies?
Size sets the range. Axial’s HVAC data shows medians of 3.12x EBITDA under $1M, 4.48x from $1M to $3M, 5.88x from $3M to $5M, and 7.02x above $5M. Capstone Partners reports HVAC services deals averaging 9.5x from 2024 through mid-2026, with add-ons typically trading below platforms.
What is an EBITDA bridge?
A walk from today’s EBITDA to exit EBITDA, one bar per initiative. It shows how much each lever contributes and keeps the value creation plan from resting on a single bet.
Which levers move fastest after close?
Call booking, the replacement presentation, and pricing. They need training and process, not capital, and every slower lever, like membership growth and technician retention, depends on them working first.
Can I use this in diligence?
As a first pass, yes. It shows where a target sits against published benchmarks and what closing each gap is worth. It does not replace quality of earnings or commercial diligence on the target’s own records.
What does it cost?
We start from your number, not a package. Tell me what you want to invest, and I will walk you through what it buys and what it does not. If I can help, I will tell you. If I cannot, I will tell you that too, straight. Our fee is 1 flat monthly number in your proposal, always separate from ad spend so you can see what you are paying for.
Do you save what I type in here?
No. The math runs in your browser and nothing is sent anywhere unless you tap the text button, which opens a message you can edit or delete before sending.
Can I just text instead?
Yes. Text the question and I will answer it. No call, no charge. The call exists for the questions that need your numbers in front of both of us.
Where the numbers come from.
- Entry multiples by sizeAxial, HVAC business valuation data, August 2025.
- Exit multiple and deal activityCapstone Partners, HVAC Services M&A Update, July 2026.
- Booking, close, and membership benchmarksServiceTitan; ACCA and Farmington Consulting; via AnchorWorks 2026 HVAC Revenue Benchmark Report.
- Technician turnoverServiceTitan, technician tenure and turnover by trade, trailing 12 months through January 2026.
Now see what the phone is really doing.
The calculator uses the numbers you have. The audit uses the call log and job records, by channel, and shows which step between a search and a booked job is leaking.
