How to Value a Heating and Air Conditioning Business (2026 Guide)
HVAC businesses sell at 2.5x-4.5x SDE when owner-operated and 5x-12x EBITDA once professionally managed. How to calculate SDE correctly, find your multiple, and why maintenance agreement penetration can double the price on identical revenue.
A heating and air conditioning business is worth roughly 2.5× to 4.5× SDE if it is owner-operated, and 5× to 12× EBITDA once it is professionally managed — and the single biggest factor moving you between those numbers is not revenue. It is what share of that revenue comes from maintenance agreements. Two HVAC companies doing identical turnover routinely sell for double-digit percentage differences, and occasionally for twice the price. This guide shows exactly how the arithmetic works, with worked examples you can run against your own numbers.
If you want a quick figure before reading the detail, our free business valuation calculator will give you a range in about five steps. Then come back, because the range is only as good as the earnings figure you feed it — and calculating that correctly is where most owners lose money.
TL;DR — The Numbers That Matter
- Owner-operated shops: 2.5×–4.5× SDE. Most cluster at 2.6×–3.5×.
- Professionally managed, $1M+ EBITDA: 5×–12× EBITDA. Around 8× is typical for larger operations.
- Recurring revenue is the lever. Under 25% recurring sells at 3×–5× EBITDA. Above 40% it is 7×–10× or higher.
- Owner dependence is the killer. Where the owner personally generates 50%+ of revenue, expect 2.5×–3.0× SDE against 4.0×–4.5× for an owner-independent business.
- 52% of listed HVAC businesses never sell, mostly for that reason.
- Maintenance portfolios have their own price: 2×–3× annual recurring revenue, before you count pull-through work.
First: Which Earnings Number Applies to You
HVAC businesses are valued on one of two earnings measures, and quoting the wrong one makes your business look either cheap or absurdly expensive.
| SDE | EBITDA | |
|---|---|---|
| Used when | Owner works in the business | Business runs on a management team |
| Typical size | Under roughly $1M earnings | Above roughly $1M earnings |
| Owner’s salary | Added back | Not added back — a manager’s market salary stays as a cost |
| Typical multiple | 2.5×–4.5× | 5×–12× |
| Buyer | Individual, local competitor | Private equity platform, strategic acquirer |
The multiples look wildly different because the underlying numbers are. The same business might show $290,000 SDE and $170,000 EBITDA once you pay a general manager $120,000 to do what the owner did for free. 3× SDE and 5× EBITDA can produce almost the same price. Never compare a multiple without knowing which base it sits on.
Step 1: Calculate Your SDE Properly
SDE starts at net income and adds back everything that will not continue under new ownership.
SDE = Net income + owner’s salary + owner’s personal benefits + one-time costs + interest + taxes + depreciation + amortisation
Here is a realistic add-back schedule for a $1.8M-revenue residential shop:
| Line | Amount | Why it is added back |
|---|---|---|
| Net income (as filed) | $95,000 | Starting point |
| Owner’s W-2 salary | +$120,000 | A buyer chooses their own compensation |
| Owner’s truck, fuel, phone, health insurance | +$18,000 | Personal benefit run through the business |
| Owner’s retirement contribution | +$14,000 | Discretionary, does not transfer |
| ServiceTitan implementation (one-off) | +$22,000 | Non-recurring; documented in year of spend |
| Depreciation & amortisation | +$35,000 | Non-cash |
| Interest on equipment notes | +$9,000 | Financing decision, not operations |
| Adjusted SDE | $313,000 |
Two warnings, both of which cost real money in diligence.
Add-backs must be documented. Most HVAC P&Ls support legitimate add-backs worth 3–8% of EBITDA — software migrations, legal settlements, storm recovery, one-off equipment. Buyers accept those with receipts. They strike out anything that looks like a recurring cost relabelled as one-time, and every struck add-back costs you the multiple as well as the earnings. A $22,000 add-back rejected at 3.5× is $77,000 off your price.
Do not add back a replacement cost. If you run dispatch and the buyer will have to hire a dispatcher, that salary is a real future cost. Adding back your own pay while ignoring the cost of replacing your labour is the most common way owners overstate SDE and then lose the deal at diligence.
Step 2: Find Your Multiple
Once earnings are clean, the multiple is set almost entirely by how transferable and predictable the business is.
| Profile | Earnings base | Multiple | What defines it |
|---|---|---|---|
| Owner-produced | SDE | 2.5×–3.0× | Owner personally generates 50%+ of revenue; install-heavy; few or no agreements |
| Owner-managed | SDE | 3.0×–3.5× | Owner runs the business but does not sell every job; some recurring work |
| Owner-independent | SDE | 4.0×–4.5× | Runs without the owner; service-weighted; real agreement base |
| Lower-middle platform add-on | EBITDA | 6×–8× | $1.5M–$5M EBITDA, management team, density in one market |
| Platform-ready | EBITDA | 7×–12× | $5M+ EBITDA, multi-market, 40%+ service agreements |
| Scarce assets | EBITDA | 10×+ | $10M+ EBITDA with high revenue visibility |
HVAC multiples currently sit roughly 20% above pre-pandemic levels, sustained by private equity consolidating a fragmented market. That is a genuinely good window for sellers, and it is not guaranteed to stay open.
The Recurring Revenue Lever
If you read nothing else, read this. Maintenance agreement penetration moves your multiple more than revenue, growth or equipment brand.
Multiple by maintenance-agreement penetration. The 40% line is the threshold most private equity buy-boxes screen on.
On the SDE side the same pattern holds: businesses with strong maintenance agreement revenue transact at 4×–6× SDE, against 2×–4× for installation-focused shops.
What an agreement is actually worth
Maintenance portfolios are valued in their own right at 2×–3× annual recurring revenue. Run the numbers on a mid-sized book:
| Input | Figure |
|---|---|
| Active agreements | 900 |
| Average annual price | $249 (2026 range: $199–$329) |
| Annual recurring revenue | $224,100 |
| Portfolio value at 2×–3× ARR | $448,200 – $672,300 |
| Pull-through revenue at $1–$3 per $1 | $224,100 – $672,300 additional |
That pull-through figure is why agreements matter beyond the subscription income. Every $1 of agreement revenue generates $1–$3 in repairs, parts and replacement recommendations, because you are inside the house twice a year and nobody else is.
Top-performing shops put 40–50% of service customers on plans and hold 90%+ renewal. The commonly cited benchmark is agreements at 20–30% of total revenue — hitting 40% is what moves you into platform territory.
Worked Example: Same Revenue, Very Different Price
Two residential HVAC companies. Both bill $1.8M a year. Both have six technicians. The difference is structural.
| Company A | Company B | |
|---|---|---|
| Revenue | $1,800,000 | $1,800,000 |
| Revenue mix | 75% install / 25% service | 30% install / 70% service |
| Maintenance agreements | 110 (≈1.5% of revenue) | 900 (≈12% of revenue, 44% of service) |
| Owner’s role | Sells every install personally | Service manager runs operations |
| Gross margin | 38% | 52% |
| Adjusted SDE | $240,000 | $313,000 |
| Multiple applied | 2.75× | 4.25× |
| Indicative value | $660,000 | $1,330,250 |
Identical revenue. Just over twice the price. Roughly a third of the gap comes from higher earnings (better mix produces better margin) and two thirds from the multiple (transferability and predictability).
The same effect at platform scale is larger in absolute terms. An $8M-revenue business with $1.2M EBITDA:
- Under 25% recurring, owner still selling — 4× = $4.8M
- Above 40% recurring, full management team, 90% renewal — 8× = $9.6M
A $4.8M swing on the same EBITDA. This is why sellers who spend eighteen months restructuring before going to market usually out-earn sellers who list immediately, even after allowing for the delay.
What Destroys HVAC Value
Buyers price risk before they price growth. These are the deductions, roughly in order of severity.
| Problem | Cost | Why buyers care |
|---|---|---|
| Owner dependence | 2.5×–3.0× instead of 4.0×–4.5× SDE | If you are the salesperson, the buyer is purchasing your relationships, which do not transfer. This is the primary reason 52% of listed HVAC businesses never sell. |
| Customer concentration above 20% | 0.5×–1.0× off the multiple | One account walking after close changes the economics |
| Concentration above 40% | Earnout-heavy structure, capped cash at close | The buyer will not fund that risk up front |
| Technician turnover | Material discount | Techs are slow and expensive to replace; crews with 5+ year foreman tenure attract a premium |
| Unlicensed or thin licensing | Can block a sale entirely | Licensure may not transfer with the entity |
| Heavy seasonality | Lower multiple | Swings in cash flow mean working-capital risk |
| Messy books | Add-backs rejected | Cash jobs and personal expenses you cannot document are earnings you cannot sell |
The Operating Benchmarks Buyers Check
Expect these to be pulled from your field-service software during diligence, so know them before a buyer does.
| Metric | Industry average | What a buyer wants |
|---|---|---|
| Revenue per technician | $120,000–$180,000 | $250,000–$450,000+; selling techs $700,000–$1M |
| Revenue vs technician cost | — | Each tech producing ~5× their total compensation |
| Overall gross margin | — | 50%–55% |
| Service & repair gross margin | — | 50%–65% |
| Maintenance agreement gross margin | — | 40%–60%, and up to 80%–90% on the plan itself |
| Residential install gross margin | — | 35%–50% |
| Equipment sales gross margin | — | 25%–35% |
| Net margin | — | 8%–12% |
| Service-to-install mix | — | 70/30 — the benchmark several acquisition platforms screen on |
| Agreement renewal rate | — | 90%+ |
One structural trend worth knowing: repair revenue rose from 21.6% of the mix in Q4 2021 to 31.3% in Q4 2025. Buyers read a rising repair share as evidence of an installed base being serviced rather than one-off installs being chased.
Who Is Actually Buying
The HVAC buyer pool has changed completely in five years, and it explains the elevated multiples.
- Private equity platforms — Apex Service Partners, Wrench Group, Sila Services, Authority Brands, ARS-Rescue Rooter and others. More than 76 PE-backed home-services platforms are now acquiring.
- Add-on acquisitions are the standard route: $1.5M–$5M EBITDA businesses bought at 6×–8× to bolt onto an existing platform in the same metro.
- Local strategics — a competitor two towns over buying route density. Often the fastest close, usually a lower multiple.
- Individual buyers — still the majority at the sub-$1M SDE end, frequently using acquisition financing.
If you are anywhere near $1M EBITDA with 40%+ service agreements, you are in a buy-box that dozens of funded acquirers are actively screening for. That is unusual, and it is worth knowing before you accept the first offer from a local competitor.
“8× EBITDA” Is Not 8× in Cash
This is the most expensive misunderstanding in HVAC exits, and it surfaces after the letter of intent when it is hardest to renegotiate.
Platform acquirers rarely pay the whole number in cash at close. A headline offer typically breaks into several pieces:
| Component | What it is | What to watch |
|---|---|---|
| Cash at close | Money in your account on completion | The only part that is certain. Ask for it as a percentage, not a multiple. |
| Rollover equity | You keep a stake in the acquiring platform | Common in roll-ups. Upside if the platform exits well, worthless if it does not. You are now a minority holder with no control. |
| Earnout | Paid later if agreed targets are hit | Triggered by concentration above 40% or shaky earnings. You are betting on someone else running your business. |
| Seller note | You lend part of the price back | Repaid over years, subordinated to the buyer’s bank debt. |
| Working capital adjustment | True-up against a target level | Frequently overlooked, and routinely moves six figures at close. |
An 8× offer with 55% cash at close, 25% rollover and 20% earnout is a materially different deal from a 6.5× all-cash offer — and on a $1.2M EBITDA business the all-cash 6.5× ($7.8M certain) may beat the 8× ($9.6M headline, $5.28M certain). Compare cash at close first, then treat everything else as optional upside.
Commercial vs Residential: Different Businesses
The two are valued on different logic, and a mixed shop is assessed on both.
| Residential | Commercial | |
|---|---|---|
| Recurring engine | Maintenance agreements across many small customers | Service contracts with fewer, larger accounts |
| Concentration risk | Low — thousands of homeowners | High — a handful of accounts can be most of the revenue |
| Margin profile | Higher on service, strong pull-through | Lower margin, larger contract values |
| Buyer pool | Deep — PE platforms target it hard | Narrower, more strategic |
| What lifts the multiple | Agreement penetration and renewal | Contract length, renewal history, credit quality of counterparties |
Residential currently attracts the most competitive bidding because its revenue is diversified across thousands of small customers — exactly the predictability a platform wants. Commercial work can be excellent, but it carries the concentration problem inherently, so the multiple depends on contract terms rather than customer count. New-construction-weighted businesses sit lowest of all: project revenue is lumpy, cyclical and does not recur, which is why install-heavy shops anchor the bottom of every range in this article.
How to Add Value Before You Sell
A focused eighteen to twenty-four months, in rough order of return:
- Sell agreements relentlessly. Every service call is a conversion opportunity. Moving from 15% to 40% penetration is the single largest multiple lever available to you.
- Remove yourself from sales. Hire or promote a service manager and a comfort advisor. The multiple gap between owner-produced and owner-independent is 1.5 turns of SDE.
- Shift the mix toward service. Install revenue is lumpy and low margin; service is repeatable and high margin. Aim at 70/30.
- Clean the books 24 months out. Take your compensation as salary. Stop running personal expenses through the company. Every undocumented add-back is money you cannot sell.
- Fix technician retention. Tenure is underwritten directly. Long-serving foremen are worth a premium in the model.
- Dilute concentration. If one commercial account is above 20% of revenue, grow around it.
- Document everything. Pricing, dispatch, callback handling. A business that runs on written process transfers; one that runs on your memory does not.
Run your current numbers and your target numbers through our business valuation calculator side by side — seeing the gap in pounds or dollars is usually what makes owners act on the list above.
FAQ
How much is my HVAC business worth?
For an owner-operated shop, roughly 2.5×–4.5× SDE, with most transacting at 2.6×–3.5×. Above about $1M in earnings with a management team, 5×–12× EBITDA, typically around 8×. Where you land depends far more on recurring revenue and owner independence than on size.
What multiple do HVAC companies sell for in 2026?
Quality operators with recurring maintenance contracts and clean financials transact at 6×–10× adjusted EBITDA. Owner-dependent businesses without contracts transact at 2×–4× on identical revenue. Current multiples run about 20% above pre-pandemic levels.
How do maintenance agreements affect value?
More than anything else. Under 25% recurring revenue sells at 3×–5× EBITDA; 25–40% reaches 5×–7×; above 40% is 7×–10× or higher. Separately, the agreement portfolio itself is valued at 2×–3× its annual recurring revenue.
What is SDE and how is it different from EBITDA?
SDE adds the owner’s salary and personal benefits back to profit, so it reflects what a single owner-operator actually takes out. EBITDA does not add back owner pay, because it assumes a manager is being paid to do that job. The same business shows a higher SDE than EBITDA — which is why SDE multiples are lower. Never compare across the two.
Why do so many HVAC businesses fail to sell?
About 52% of listed HVAC businesses do not sell, and owner dependence is the main reason. If the owner personally produces half the revenue, a buyer is acquiring relationships that leave with the seller.
Does my equipment and fleet add to the price?
Usually it is already inside the multiple rather than added on top. Earnings-based valuations assume the assets needed to produce those earnings convey. Unusually new fleet or owned real estate is normally negotiated separately — property in particular is typically valued and often sold or leased apart from the operating business.
How long does it take to sell an HVAC business?
Six to twelve months is typical from listing to close for a clean business, longer where books need rebuilding. The preparation work that raises the multiple takes twelve to twenty-four months before that, which is why the decision to sell should precede the sale by roughly two years.
Should I use a broker?
Above roughly $1M SDE, competitive tension between platform buyers usually more than covers the fee. Below that, an individual buyer pool is easier to reach directly. Either way, do not accept an unsolicited approach from a PE platform without knowing what the other seventy-five are paying.
The Honest Wrap
HVAC valuation looks complicated and is mostly two questions. What are the real earnings once discretionary costs are stripped out? And how much of this business survives the owner walking out of the door?
Everything else is detail. Maintenance agreements matter because they answer the second question with recurring cash. Service mix matters because it is more repeatable than installs. Technician tenure matters because crews are hard to replace. Documented books matter because undocumented earnings are unsellable earnings. Each one moves the same two numbers.
The window is currently favourable — multiples roughly a fifth above pre-pandemic levels, with more than seventy funded platforms competing for add-ons. But the difference between listing today and spending eighteen months on agreement penetration and management depth is, on the worked example above, over half a million dollars on a $1.8M-revenue business. That is worth the delay.
Start with a number. Our free business valuation calculator takes five steps, works in your own currency, and gives you a defensible range to plan against — then use the checklist above to work out what it would take to move it.
Sources: Breakwater M&A: HVAC valuation multiples 2026 · Ad Astra Equity: HVAC EBITDA multiples · CT Acquisitions: HVAC multiples explained · Housecall Pro: how to value a heating and air conditioning business · HVAC Know It All: maintenance agreements and valuation · HVAC business benchmarks 2026 · Revenue per technician benchmarks
Related reading: Free Business Valuation Calculator · Online M&A Trends in 2026 · AI Businesses For Sale
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