How to value an HVAC business before you sell
To value an HVAC business, a buyer multiplies a year of its earnings by a multiple. For most shops the earnings figure is seller's discretionary earnings (SDE), and half of the HVAC businesses sold through BizBuySell from 2021 to 2025 went for between 1.99 and 3.33 times it, with a median of 2.58. Where your shop lands in that range depends on how much of its revenue repeats, how much of it runs without you, and whether your books hold up when a buyer's accountant goes through them.
If you plan to sell in 2 or 3 years, that's enough time to move the multiple. Most of the fixes happen in the books, the work behind our HVAC bookkeeping services.
How do buyers value an HVAC business?
A profitable HVAC shop is valued on its earnings. The buyer takes a year of earnings and multiplies it by a number that reflects how likely those earnings are to keep coming after you leave.
Seller's discretionary earnings is the total one owner-operator gets out of the business in a year: net profit, plus the owner's salary, plus personal and one-time costs run through the company, plus interest, depreciation and amortization. Those additions are called add-backs.
The trucks, tools and inventory matter, but for a shop that makes money they only set a floor under the price.
Expect a gap between what you'd ask and what a buyer pays. HVAC businesses recently listed on BizBuySell asked a median of 2.98 times earnings, while the ones sold from 2021 to 2025 went for 2.58.
SDE or EBITDA: which number counts?
Smaller deals are priced on SDE and bigger ones on EBITDA, earnings before interest, taxes, depreciation and amortization. The IBBA's Market Pulse survey of business brokers draws the line at a $2 million price. In the second quarter of 2026, across all industries, deals of $500,000 to $1 million went for 2.8 times SDE, $1 million to $2 million for 3.1 times SDE, and $2 million to $5 million for 4.0 times EBITDA.
The higher EBITDA multiple comes with a smaller number to multiply. EBITDA charges the business a market wage for the manager who runs it after you leave. SDE assumes the buyer runs the shop and takes your pay.
Either way, your pay has to show on the P&L. A buyer pricing on EBITDA puts a manager's salary back in, so a profit figure with no salary in it shrinks the moment someone checks.
A worked example: a $2 million HVAC shop
Here's an example shop doing $2 million a year. The numbers are made up to show the math.
| Line | Amount |
|---|---|
| Net profit on the P&L | $160,000 |
| Add back: owner's salary | $100,000 |
| Add back: owner's personal truck and phone costs | $10,000 |
| Add back: one-time cost of switching field software | $20,000 |
| Add back: interest on truck loans | $15,000 |
| Add back: depreciation | $45,000 |
| Seller's discretionary earnings | $350,000 |
Now run that $350,000 through BizBuySell's range for HVAC sales. A quarter of shops sold below the lower quartile and a quarter sold above the upper one.
| Where the shop lands | Multiple of SDE | Value |
|---|---|---|
| Lower quartile | 1.99 | $696,500 |
| Median | 2.58 | $903,000 |
| Upper quartile | 3.33 | $1,165,500 |
Nothing about the trucks or the earnings changed, and the value moved $469,000 from the lower quartile to the upper. That spread is what the next 2 or 3 years of work can be worth.
A buyer pricing on EBITDA would take out a market wage for a general manager, say $100,000, and multiply $250,000 instead.
Every add-back needs proof. The software switch needs the invoice, and the personal truck costs need a record of what was personal. An add-back you can't document gets thrown out, and at 2.58 times, each $10,000 you lose takes $25,800 off the price.
What raises or lowers the multiple in HVAC?
BizBuySell sums up what separates the top of the range from the bottom. Consistent results, above-average earnings, room to grow, low owner involvement and a seller willing to finance part of the price push a business to the upper quartile or above. Lower revenue, thin margins, a full-time owner and lots of direct competitors push it to the lower quartile or below. Size counts too: BizBuySell expects HVAC shops with more than $2.5 million in sales to sell for well over 3 times earnings, and similar shops under $1 million for around 2.
In an HVAC shop, those show up in five places:
- Maintenance agreements: they're the clearest proof of consistent revenue. Those customers have already agreed to pay you every year, and their tune-ups feed repair and replacement calls. Expect a buyer to ask how many you have, how many renewed last year and what those customers spend beyond the plan. Book agreement revenue as the visits happen, as covered in bookkeeping for HVAC businesses, so the numbers hold up.
- Service versus install mix: service, maintenance and replacement work come from your own customer list and come back. New-construction installs have to be won from builders again every year. Show the split on the P&L department by department, the way HVAC profit margins lays it out.
- Owner dependence: if you sell every replacement, hold every builder relationship and answer the after-hours phone, the buyer is buying a job, not a company.
- Tech retention: expect questions on tenure, pay plans and who'll stay after the sale. Check how your state handles the contractor license when the person who qualified for it leaves.
- Clean books: the next section covers them.
Owner dependence takes the longest to fix.
So just remember that nobody in your company is the CEO except for you. And if you're going to step out, you know, you aren't stepping out as an owner, you're stepping out as the CEO and the CEO is a very critical position to a company. Imagine if Steve Jobs just one day decided he wasn't going to show up to Apple anymore … Like people would be going ballistic.
That's what Brandon Vaughn, who coaches home service owners, told a cleaning company owner who planned to step back and hand the business to his office admin, though no one had been groomed to run it. A sale is the same step out, on a fixed date. Put a service manager or general manager in that seat 2 or 3 years ahead, so a buyer sees statements from a shop that already runs without you.
What to fix in the books 2 to 3 years out
One clean year looks like a fluke. Start early enough that a buyer sees 2 or 3 clean years in a row:
- Close the books every month on the accrual basis, meaning income when the work's done and bills when you get them. Your P&L should tie to your tax return. When they don't match, a buyer questions both.
- Put your salary on payroll at a market wage. The P&L then shows real profit, and your pay is one clean add-back.
- Get personal costs out of the business. Each one left in is an add-back you'll have to prove. Separating business and personal finances shows how.
- Park one-time costs in their own account the month they happen, with the invoice attached. Your add-back list builds itself.
- Split revenue and job costs by department: service, maintenance agreements, replacement and new construction.
- Track agreements every month: how many you have, how many renewed and how many canceled, pulled from your field software.
- Clean up the balance sheet. Truck loans should match the lender's statements, inventory should be counted, and customer deposits should sit as money you owe until the job's done.
This is the work a fractional CFO does for a shop getting ready to sell. If you want a second set of eyes on your add-back list, bring last year's P&L to a free profit call. With YetiBooks you get the same profit specialist every time (here's how it works).
Questions owners ask
Is there a revenue rule of thumb for HVAC?
HVAC businesses sold through BizBuySell from 2021 to 2025 went for a median of 0.56 times revenue, and half fell between 0.38 and 0.74. Two shops with the same revenue and different margins aren't worth the same, so use revenue to check the earnings math and let earnings set the price.
How long does it take to sell an HVAC business?
HVAC listings in BizBuySell's data spent a median of 186 days on the market. The cleanup takes longer than that, so the books work starts years before the listing.
Does an asset sale or a stock sale change what I keep?
Yes. IRS Publication 544 (for 2025 returns) treats the sale of a business for a lump sum as a sale of each individual asset, with the gain or loss on each figured separately. Inventory produces ordinary income, while selling your stock usually produces a capital gain or loss. In an asset sale, you and the buyer both report how the price was split among the assets on Form 8594, so settle that split with your CPA before you sign.
When Brandon sold one of his own companies, it was an asset sale, and he had to pay off all of the company's outstanding debt. Count your truck notes before you count the check.
