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Buying an HVAC Business

Why Searchers Target HVAC

HVAC combines the traits the roadmap's thesis stage tells you to look for: recurring, weather-driven demand; a fragmented base of owner-operated companies; and a large cohort of founders reaching retirement. Private equity consolidators have spent years rolling up the category, which validates the economics and provides exit paths, but it also means clean companies attract professional competition. Expect to win on speed, fit, and seller trust rather than price.

What the Market Pays

Across HVAC businesses sold on BizBuySell from 2021 through 2025, the sold-business quartiles ran 2x to 3.3x SDE with the median at 2.6x, and asking prices ran about half a turn above what sales closed at. The single biggest lever is revenue mix: businesses with a meaningful base of maintenance agreements command a premium over install-heavy peers, because recurring service revenue survives the owner transition better than one-time replacement work. Treat any multiple quoted without the install-versus-service split as unpriced.

Licensing and the Qualifier Question

Most states require HVAC work to run under a licensed contractor of record, often called a qualifier. If you do not hold the license, the deal depends on a qualifier arrangement: the seller staying on in that capacity for a period, a licensed employee assuming it, or you earning it, and state rules differ on timelines and transferability. Confirm the licensing plan in writing before the LOI, since it affects closing timing, SBA eligibility, and how much the seller transition is really worth. One federal rule outranks the state license here: a company may buy refrigerant only if it employs a certified technician, and that certification belongs to the person. Buy the assets, lose the crew, and the trucks cannot be restocked.

The Refrigerant Transition Is a Diligence Item

The industry is mid-transition to A2L refrigerants under the federal AIM Act. Reporting through 2025 describes sharp price rises and supply constraints for the new refrigerant and its cylinders, tooling and training. This cuts both ways: replacement demand rises as older systems age out, but quotes and margins written before the cost spikes may not survive them. Ask about refrigerant inventory, A2L tooling, and how price rises pass through open bids.

What to Verify in Diligence

Beyond the standard QoE work, the HVAC-specific list is:

  • The install-versus-service revenue split and the count, pricing, and attrition of maintenance agreements
  • The technician roster with certifications, tenure, compensation, and realistic flight risk
  • Seasonality in the trailing statements and how the business staffs for it
  • Warranty obligations and callbacks, which arrive as unpaid labor on jobs the seller already collected for
  • Permit and inspection history, because an unpermitted install becomes the buyer's to make right when it surfaces
  • The age and condition of the vehicle fleet and equipment, which set the real capex line an owner-operator inherits

Financeability Notes

HVAC fits SBA 7(a) financing well: steady cash flow, tangible fleet and equipment, and deal sizes inside the program cap. Lenders will focus on owner dependence, especially when the seller is also the license qualifier, and on whether earnings cover debt service after a market-rate manager replaces whatever the owner personally does. Run the numbers in the SBA calculator with a realistic salary for the role you are actually taking, and pressure-test the DSCR against the seasonally weakest quarter.

Terms in This Industry

Callback rate

The share of jobs that bring a technician back for the same fault, unpaid.

A2L refrigerants

The lower-global-warming refrigerants replacing the old ones, which changes equipment and training.

License qualifier

The named individual whose contractor license the business legally operates under.

Maintenance agreement

A contract for scheduled seasonal service, which buys predictable revenue and the first call.

Classification boundary

Where the heating and cooling license stops and another trade's license starts.

Manufacturer dealer agreement

Wisconsin's dealership law can grant a right to sell a line with nothing signed, and it may not transfer.

Certification type

Which class of appliance a technician's federal refrigerant card lets them touch.

Flat-rate book

The priced task list a technician quotes from at the door, in place of hours and parts.

What the Data Says

Enter earnings to apply this industry's cited band.

A sanity check against asking prices, not a valuation.

Margin context, from IRS Schedule C aggregates (TY2023): specialty trade contractors ran a 15.7% net margin across all filers and 21.2% among profitable ones; a listing far above the second number is making a claim about add-backs. Both figures and their caveats are on Industry Economics.

Where they are, from Census County Business Patterns: California (4,385), Texas (3,802) and Florida (3,414) hold the most buyable ones. Each state guide ranks its own counties, which is the number that decides a search: nobody buys a state, they buy inside a drive.

Lender context, from the SBA loan-level file: Live Oak Banking Company (165), The Huntington National Bank (47), First Internet Bank of Indiana (22) wrote the most of this industry's 707 acquisition approvals. A bank that knows the trade says yes faster; the ranking for every industry is on Most Active Lenders by Industry.

Holding a live deal in this industry? Underwrite it with this industry preselected, its cited band and charge-off rate loaded.

Compare bands across industries in the cited multiple bands by industry.

Who Else Is Buying in This Industry

Buyers is the shelf these come from, ordered by who closed something most recently.

How Big This Market Is

There are about 111,207 businesses in this industry. 44,680 of them (40%) have 5 to 99 employees: the band big enough to have something to sell, small enough to finance. Most of the rest are owner-operators with a job rather than a business to hand over.

Census County Business Patterns (2023). How often they change hands is in Market Depth.

Who the Law Lets Own This

Most states require a licensed qualifier to hold the contractor license the business operates under.

How buyers structure around it: Employ or retain a qualifying license holder; buyer licensure timelines vary by state.

Most of these rules are set state by state and change, so confirm the current one with the regulator that issues it and your attorney before it shapes an offer. Every trade with a recorded rule is on Ownership & License Rules.

What It Costs to Replace the Owner

The multiples above are quoted on SDE, which adds the owner's pay back into earnings, so they hold only if you do the owner's job. Hire someone instead and the going rate for the role comes back out. For this trade that is usually the lead who runs the trade crews, paid a median of $93,320 a year nationally. Subtract it from SDE before applying any multiple, because at a 3x multiple that wage also takes about $279,960 off what the business is worth to you.

First-line supervisors of construction trades and extraction workers, BLS Occupational Employment and Wage Statistics (2025), within plumbing, heating, and air-conditioning contractors specifically, before payroll taxes and benefits. Every role, and the same arithmetic worked end to end, is in Manager Wages.

How Often These Loans Go Bad

Of the 137 SBA acquisition loans in this industry old enough for most failures to have shown up, 7 were charged off: a rate of 5.11%. Across every industry we can measure, the pooled rate is 4.20%, so this one runs hotter than the average acquisition.

Computed from SBA loan-level data on a seasoned cohort. It counts loans already written off, so read it as a floor and as a ranking. Every industry's rate.

The Numbers That Run This Business

  • Service-agreement revenue share
  • Booked calls versus technician capacity
  • Average ticket by job type
  • Maintenance-agreement renewals
  • Install backlog and close rate

Where to Go Next

Work a Deal in HVACTrack HVAC TargetsStage 2: Define & Test Your ThesisStage 4: Source & Screen DealsStage 5: Diligence & Close the DealLendersDeal ResourcesDeal ResourcesHVAC Valuation CalculatorCompare HVAC With Other TradesDeal ScreenerWhere These Businesses AreMost Active LendersJobs & Pay in This Industry