What Is Your HVAC Business Worth? Valuation, Buyers and Exit Planning
Your HVAC company is worth a multiple of earnings a buyer can verify and keep after you leave. How SDE and EBITDA are calculated, which add-backs hold up, what moves the multiple, how to compare offers with seller notes, earnouts and rollover equity, and a three-year plan to get ready.
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Most HVAC owners have a number in their head for what the company is worth. Usually it came from a friend who sold, a broker's postcard or a private equity cold call. And usually the buyer's number turns out to be lower, because the buyer is pricing something different: earnings they can verify on paper and expect to keep once you are gone.
That gap is good news if you have time. Most of what sets the price is under your control: how clean the books are, how much of the business runs through you, how much revenue repeats, and whether your technicians stay. A lot of it also overlaps with running a better company whether or not you ever sell.
This guide covers how buyers calculate earnings, which adjustments survive due diligence, what the published multiples are worth, what moves your multiple up or down, how to compare offers that are structured differently, and a plan that starts three years before a sale. The example figures are illustrations. A sale is a legal and tax event, so bring in a CPA and a transaction attorney before you sign anything, including a letter of intent.
Key takeaways
- →Buyers pay a multiple of earnings they can verify and keep. Smaller, owner-run shops are usually priced on seller's discretionary earnings (SDE); larger ones with management in place on adjusted EBITDA, which already pays someone to do your job.
- →Add-backs only count if they are documented and truly gone after the sale. Revenue that never made it into the books is not in the price, and diligence strips aggressive add-backs.
- →Every documented dollar of yearly earnings is worth the multiple. At 5x, recovering $65,000 a year of unbilled work is worth about $325,000 of price.
- →Published HVAC multiples come almost entirely from brokers and advisors, and they disagree. Treat them as rough ranges, not a promise, and get a valuation on your own numbers.
- →Owner dependence is the biggest discount. If you hold the license, sell the replacements, answer the phone or own the commercial relationships, buyers price in the risk that they leave with you.
- →Compare offers on cash at close, the part that is at risk, who controls whatever decides an earnout, and how long you must stay. A higher headline price can carry less guaranteed money.
- →Start about three years out. Buyers usually look at three years of financials, so the books you keep now are the ones that get priced.
What a buyer is actually paying for
A buyer is buying future cash flow and pricing the risk that it does not show up. Trucks, tools and inventory count, but in most HVAC sales they are a small part of the price. The rest is goodwill: the customer base, the agreements, the phone number, the reviews, the technicians, and the systems that keep work coming in.
So the price comes down to two numbers multiplied together: earnings and a multiple. Earnings is what the business makes in a normal year, adjusted to show what a new owner would actually take home. The multiple reflects how confident the buyer is that those earnings will continue and grow. Both are negotiated, and both can be improved well ahead of a sale.
What a buyer pays less for is what walks out the door: earnings that depend on you, customers who are loyal to you personally, technicians who might quit, and revenue that has to be won again every year.
SDE vs EBITDA, worked through on one shop
Take a made-up shop with $3.2 million of yearly revenue. The tax return shows $230,000 of pre-tax profit. Depreciation was $45,000 and interest $15,000. The owner paid themselves a $160,000 salary, ran $28,000 of documented personal costs through the company (a personal vehicle, a phone and family health insurance), and had $22,000 of one-time costs: a software migration and a legal settlement.
Seller's discretionary earnings (SDE) is the total cash benefit to one working owner: $230,000 + $45,000 + $15,000 + $160,000 + $28,000 + $22,000 = $500,000. Buyers who will run the business themselves, usually individuals, think in SDE, because that is what they will live on and use to pay off the loan.
Adjusted EBITDA goes one step further and charges a market wage for the work the owner does. This owner runs the company and sells most of the replacements. Hiring a general manager and a commissioned comfort advisor might cost $180,000 a year with payroll burden. $500,000 − $180,000 = $320,000 of adjusted EBITDA, 10 percent of revenue. Larger and institutional buyers think in EBITDA, because they will pay someone to do your job.
The two approaches tend to give similar answers, because each uses a multiple matched to its own measure. In this example, 3.0 to 3.5 times SDE gives $1.5 million to $1.75 million. 4.5 to 5.5 times adjusted EBITDA gives about $1.44 million to $1.76 million. The mistake is mixing them, applying an EBITDA-sized multiple to SDE, which is how owners end up with a figure in their head that no buyer will pay.
Add-backs that survive due diligence
An add-back is a cost in your books that the new owner will not have. Done right, it raises your earnings. Done carelessly, the buyer will strip it out in diligence, and then you have lost credibility as well as the number.
Add-backs that usually hold up: the owner's salary and payroll taxes, on the SDE basis; personal costs with receipts showing what they were for; genuinely one-time costs like a lawsuit, a system migration or a storm-damage repair; and a family member on the payroll who does no work. If a family member does work, only the gap between their pay and a market wage for that job counts. A spouse who does the books is a bookkeeper the buyer will have to hire.
Add-backs that usually fail: costs that happen every year under a different name, "a bad year because of the weather", deferred spending the buyer will have to make up (old trucks, a delayed software change, an understaffed office), and anything you cannot document. Buyers usually look at three years and the trailing 12 months, not your best year.
Cash that never made it into the books does not count. If it is not on the tax return, it is not in the price, and saying otherwise to a buyer is admitting to a tax problem. A shop that has been underreporting has made its business look smaller for years.
For larger deals, the buyer will usually pay for a quality of earnings review, an outside accounting check of your revenue, margins and add-backs. It goes better when your field service platform, your accounting system and your tax returns agree, or when you can explain where they differ. The KPI scorecard guide on this site covers that monthly reconciliation.
How much to trust published HVAC multiples
Be careful here. Almost every HVAC multiple published online comes from a business broker, an M&A advisor or a software vendor, not from a database of closed deals. Each has a reason to make the numbers look attractive, few explain their method, and they disagree with each other.
With that caveat, the commonly quoted shape is consistent. Small, owner-run shops are usually quoted somewhere around 2.5 to 4.5 times SDE. Larger companies with real management in place are quoted around 4 to 8 times adjusted EBITDA. Private equity platform deals for bigger companies are quoted higher still, and figures above 10 times appear mostly in marketing material. Size matters by itself: a company with $2 million of EBITDA usually gets a higher multiple than one with $300,000, because it carries less risk and fewer buyers can afford it.
The range within each band is the part you can move. Two shops with the same earnings can sell a full turn or more apart, and the next section covers why. To get a number for your own company, ask an advisor for a written valuation based on your financials and recent comparable sales, and ask what comparable data they used.
What moves your multiple up or down
Owner dependence. This is the biggest one. Ask yourself whether you could leave for three weeks in July. If you sell the replacements, set the prices, answer the after-hours phone, hold every important commercial relationship and approve every purchase, the buyer is buying a job, not a business, and will either pay less or tie more of the price to you staying.
The license. In many states the contractor license is held by a qualifying individual. If you are that person, the buyer needs a replacement qualifier before the business can keep operating. Rules vary by state, so find out what yours requires and get a second qualifier in place well before you sell.
Recurring revenue. A documented maintenance agreement base is usually cited as the strongest single value driver, because it predicts service calls and replacements. Buyers will ask for the active count, renewal rate by year, revenue per agreement, and whether the visits owed have actually been delivered. A backlog of prepaid visits you have not run is a liability the buyer will deduct. The maintenance plans guide on this site covers renewal rates and delivery.
Technicians. Buyers worry that your best techs will leave once the sale is announced. Tenure, pay records, a training path and a bench below your top people all help. Retention bonuses paid at or after closing are common and are usually negotiated with the buyer.
Revenue mix and concentration. Steady service and agreement revenue is valued above replacement-heavy revenue that rises and falls with the weather. For commercial shops, one property manager or general contractor providing a large share of revenue is a risk, as are contracts that cannot be assigned to a new owner. The commercial maintenance contracts guide on this site covers terms worth getting right.
Trend. Growing earnings get a better multiple than flat ones, and flat ones get a better multiple than falling ones. Buyers pay for the next three years, and they read the last three to guess what those will look like.
Raise the earnings first: every dollar is worth the multiple
An extra dollar of yearly earnings is worth the multiple when you sell. At 5 times, $10,000 a year of extra documented profit adds about $50,000 to the price. That changes the case for fixes you might have put off.
Examples from other guides on this site, using their example shops: billing every completed job can recover about $65,000 a year that is currently lost, worth about $325,000 at 5 times. Cutting callbacks from 6 to 3 percent saves real direct cost plus displaced peak-season revenue. Filing every warranty parts claim recovers money that is currently going unclaimed. None of these needs new customers.
Be realistic about timing. A buyer will want to see an improvement hold for at least a year, ideally longer, before paying full price for it. A fix made two months before a sale is a story. A fix with two years of results behind it is earnings.
Do not cut spending that the next owner will have to restore. Skipping truck replacement, letting training lapse or not hiring a needed CSR raises this year's profit, but a careful buyer will spot it and either deduct it or add a normalization adjustment that takes it back out.
Who buys HVAC companies
Individual buyers. Often a former manager or someone from outside the trade, buying one business to run. Usually priced on SDE and often financed with an SBA loan. Expect a lender appraisal, a personal guarantee from the buyer and often a seller note. SBA rules on seller financing change from time to time, so ask the buyer's lender what currently applies.
Strategic buyers. A nearby contractor buying for your customers, your technicians or your territory. They can sometimes pay more because they can cut duplicated overhead, and they will often cut it, which matters if you care about your office staff.
Private equity platforms and add-ons. PE firms buy a larger company as a platform and then buy smaller ones to add to it. Add-ons are usually priced below platforms, often with rollover equity, an earnout and an employment agreement for the owner. What happens to your brand, your people and your pay plans depends on the platform, so ask to talk to owners who sold to them two or three years ago.
Insiders. A key employee, a partner or a family member buying over time. Usually a lower price and more seller financing, but more control over who takes over. Larger companies sometimes look at an employee stock ownership plan (ESOP). Get specialist advice before going down either path.
Solo shops are different. A one-truck business without a team mostly sells as equipment, a customer list and a phone number, often to a nearby contractor. Sometimes the price is paid per transferred agreement or as a share of revenue from customers who stay. Building any agreement base before you sell helps more than anything else.
Comparing offers: price vs terms
Take the $320,000 EBITDA shop from earlier with two offers. Offer A, from an individual buyer with bank financing: $1.6 million, with $1.36 million in cash at closing and a $240,000 seller note paid over five years. The owner stays on for a few months to hand over.
Offer B, from a private equity platform: $1.9 million, made up of $1.33 million in cash at closing (70 percent), $380,000 of rollover equity in the platform (20 percent) and a $190,000 earnout (10 percent) paid if the business hits EBITDA targets over two years. The owner stays on as a general manager for two years.
Offer B has the higher headline price but slightly less cash at closing. The rest depends on the platform doing well, on hitting targets that the new owner's decisions will affect, and on two years of working for someone else. None of that makes B worse. Rollover equity can be worth more than its face value if the platform sells again at a higher price. But it is a different risk, and you should compare it as one.
For every offer, ask: how much cash at closing, after fees and taxes? How much is at risk, and what does it depend on? Who controls the things that decide an earnout, like pricing, staffing and overhead allocation? What happens to the seller note if the buyer defaults? How long do you have to stay, and on what terms? Get a CPA to model the after-tax result of each, because the structure changes the tax as well as the risk.
Terms that move money late in the deal
Working capital. Most deals assume a normal level of receivables, inventory and payables stays in the business. If the amount at closing is lower than the agreed target, the price goes down. HVAC is seasonal, so the target, and which month it is based on, matters. Negotiate it early.
Asset vs stock sale. Most small deals are asset sales, which buyers prefer for tax reasons and to avoid old liabilities. How the price is split among equipment, vehicles and goodwill changes how much of your gain is taxed at which rate. The split is negotiable, mostly before the letter of intent, so involve your CPA then.
Holdbacks and escrow. Part of the price is often held back for a period to cover anything that turns up after closing. Watch for warranty work in particular: labor warranties on recent installs and agreement visits already paid for are real obligations, and buyers may want money held back to cover them. The warranty claims guide on this site covers measuring that exposure.
Non-competes and your role. Expect a non-compete and non-solicitation agreement tied to the sale. These are generally treated differently from employee non-competes, but state law varies. Read the length, the territory and what counts as competing.
The letter of intent. Once you sign one, you usually agree not to talk to other buyers for a period, and your leverage drops. Settle price, structure, working capital target, your role and the main conditions in the letter of intent, not later.
What due diligence will ask for
Financial: three years of tax returns and financial statements, the trailing 12 months, revenue and gross margin by department, receivables aging, a list of add-backs with documents, and a reconciliation between your field platform and your books.
Customers and revenue: the active agreement list with start dates, renewal history and visits owed; revenue by customer for commercial accounts; customer contracts and whether they can be assigned; and lead sources with cost per booked job.
People: a staff list with roles, tenure, pay and pay plans; employment agreements; open claims; and who holds which licenses and certifications.
Operations and assets: vehicles and equipment with titles and condition, leases, supplier and manufacturer dealer agreements, open warranty obligations, insurance and claims history, and permits. Dealer agreements and some leases need consent to transfer, so check early.
Systems: whether your customer history, equipment records and agreement data can be exported from your field service platform. A buyer moving you to their own system wants clean data. If years of history live only in a technician's memory or in paper files, that is a risk the buyer will price.
A three-year plan to get ready
Three years out: clean up the books. Stop running personal costs through the company, or document every one. Put a market wage for yourself in your management numbers. Separate revenue and margin by department. Make sure every agreement is in your system and every visit owed is delivered. Get a second license qualifier in place if you are the only one.
Two years out: build the layer under you. Hand off replacement sales, pricing, dispatch and the after-hours phone to people who can do them without you. Put key commercial relationships in someone else's hands too. Write down how the company runs. This is also when fixes like unbilled work, callbacks and warranty claims need to be in place so a buyer sees a full year of results.
One year out: have a CPA review or compile the financials, get a written valuation, and organize the diligence documents listed above in one place. Decide what matters to you besides price: your staff, your name on the trucks, how long you want to stay. If you want to keep working for a few years, say so, because it changes which buyers fit.
During the sale: hire an advisor who has sold HVAC or similar trade businesses, get every fee in writing (including any retainer, minimum fee and tail period), and keep it confidential. Tell key employees when you and your advisor decide, not when a rumor forces it. And keep running the business hard. A bad quarter during diligence is one of the most common reasons buyers reprice.
What software has to do with it
No software adds value by itself, and a buyer will not pay more because you use a particular brand. But your systems decide whether you can prove what you claim. Per-department margin, technician-level performance, agreement renewal history and lead-source returns all come from how your field platform and your accounting system are set up and used.
Larger platforms such as ServiceTitan and FieldEdge have deeper built-in reporting. Housecall Pro, Jobber and Service Fusion cover the core job, revenue and agreement data most smaller shops need. Most shops do their accounting in QuickBooks Online or similar. Whatever you use, check that customer, equipment and agreement data exports cleanly. A buyer may move you to their own system after closing.
Anything that takes work off you also reduces owner dependence: a CSR or answering service that covers the phone, a dispatcher or dispatch tool so the board is not in your head, and a written price book so pricing does not need you. The small residential and mid-size guides on this site cover what to hand off first at each size.
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Frequently asked questions
Q.How much is an HVAC business worth?
It is worth a multiple of earnings a buyer can verify and keep after you leave. Smaller, owner-run shops are usually priced on seller's discretionary earnings, and broker-published ranges cluster around 2.5 to 4.5 times. Larger shops with management in place are priced on adjusted EBITDA, commonly quoted around 4 to 8 times. These figures come mostly from brokers and advisors, so get a written valuation based on your own financials.
Q.What is the difference between SDE and EBITDA for an HVAC company?
SDE is the total cash benefit to one working owner: profit plus the owner's salary, documented personal costs, one-time costs, depreciation and interest. Adjusted EBITDA then subtracts a market wage for the work the owner does. Each uses its own range of multiples. Applying an EBITDA-sized multiple to SDE is a common way owners overestimate their value.
Q.How can I increase the value of my HVAC business before selling?
Raise documented earnings and lower the risk a buyer sees. Clean up the books, document add-backs, and fix profit leaks like unbilled jobs, callbacks and unclaimed warranty parts. Hand off sales, pricing, dispatch and the phone so the company runs without you. Build and deliver a maintenance agreement base, keep your key technicians, and get a second license qualifier if you hold the only one. Most of this needs one to three years of results before a buyer pays for it.
Q.Do maintenance agreements increase the value of an HVAC company?
Usually, yes. A documented agreement base is widely cited as one of the strongest value drivers, because it predicts service calls and replacements. Buyers will check the active count, renewal history and whether the visits owed have been delivered. Prepaid visits you have not run count as a liability, and agreements that only exist on paper or in someone's memory count for little.
Q.Why would a private equity offer have a higher price but less cash?
PE offers often split the price into cash at closing, rollover equity in the platform and an earnout tied to future results. The headline is higher, but part of it depends on the platform doing well and on targets the new owner's decisions affect. Compare offers on cash at closing after fees and taxes, the amount at risk, who controls what decides the earnout, and how long you must stay.
Q.How long does it take to sell an HVAC business?
Preparation is the long part: buyers usually look at three years of financials, so changes need time to show up. The sale itself, from hiring an advisor through closing, commonly takes many months, and diligence alone can take several. Keep the business running hard throughout, since a weak quarter during diligence is a common reason buyers lower their price.