Finding the Right HVAC Company to Buy

Why the Best HVAC Deals Never Hit the Market

Here's something the business brokers won't tell you: the best HVAC companies almost never get listed for sale publicly. By the time a shop shows up on BizBuySell or gets a glossy broker package, the owner has usually already talked to three or four people in their network. If none of those conversations turned into a deal, then it hits the open market.

Think about what that means. The businesses you see listed online are, on average, the ones that the owner's inner circle already passed on. That doesn't mean they're all bad. But it does mean the cream gets skimmed before you ever see the listing.

So where do the real deals come from? Retiring owners. And in this industry, there are a lot of them. The average age of an HVAC company owner in the United States is somewhere north of 55. Many of them built their businesses from a single van and a phone line. They don't have a succession plan. Their kids don't want the business. They're tired, their knees hurt, and they're ready to fish.

These owners don't wake up one morning and list their company. They start by mentioning it to the guys they see at the supply house. They tell their accountant. They mention it to the rep from Carrier or Trane who's been calling on them for fifteen years. Word gets around, but it stays in the trade.

If you want access to these deals, you need to be in the conversation before it starts. That means:

• Building relationships with HVAC supply house managers in your target area
• Attending local ACCA or PHCC chapter meetings and letting people know you're looking to buy
• Talking to equipment manufacturer reps who cover the territory you're interested in
• Reaching out directly to owners of companies you admire with a respectful, no-pressure letter
• Connecting with CPAs and attorneys who specialize in small business transitions

Direct outreach is underrated and underused. A well-written letter to an owner who's been in business for 25+ years, explaining that you're an experienced HVAC professional looking to acquire a company and continue their legacy, gets read. I know because I got one of those letters myself about eight years before I actually sold. I kept it in my desk drawer. When the time came, I called that person first.

Where to Actually Find HVAC Businesses for Sale

Off-market is ideal, but it's not the only game. There are legitimate channels where HVAC businesses get listed, and you should be monitoring all of them. The key is knowing what each channel tends to attract.

Online Marketplaces

BizBuySell is the biggest. It's the Zillow of business sales. You'll find everything from one-truck operations asking $80,000 to multi-location commercial outfits listed at $5 million. The quality varies enormously. Many listings are overpriced, and a lot of the financials in the summary are, let's say, optimistic. But it's a starting point. Set up saved searches for "HVAC" in your target geography and check them weekly.

BizQuest and BusinessBroker.net are similar but smaller. You'll see some overlap with BizBuySell, but occasionally something pops up on one that isn't on the others. It takes five minutes to set up alerts on all three. Do it.

LoopNet sometimes lists HVAC businesses when the real estate is part of the deal. If a company owns its shop and yard, the listing might show up as a commercial real estate transaction with a business attached. Don't overlook this.

Business Brokers

A good broker who specializes in trades businesses or HVAC specifically is worth their weight in copper pipe. They pre-screen deals, they've already verified at least some of the financials, and they manage the communication between buyer and seller so nobody says something stupid at the wrong time.

The downside? Broker fees typically run 8-12% of the transaction value, and that cost is usually baked into the asking price. A business listed at $1.2 million through a broker might have sold for $1.05 million in a direct deal. You're paying for the broker's work whether you realize it or not.

Look for brokers who are members of the International Business Brokers Association (IBBA) and who have specific experience with HVAC or mechanical contracting businesses. A generalist broker who mostly sells restaurants and laundromats won't understand seasonal cash flow or the value of a maintenance agreement book.

Industry Associations and Trade Networks

ACCA (Air Conditioning Contractors of America) and local PHCC chapters sometimes facilitate business transitions within their membership. It's not a formal marketplace, but the networking events and leadership meetings are where these conversations happen. If you're not a member of your local chapter, join. The dues are trivial compared to the access you get.

Some equipment distributors also quietly facilitate introductions between buyers and sellers. They have a vested interest in keeping their dealer network healthy, and they'd rather see a good operator take over an existing shop than watch it fold and lose the territory.

Word of Mouth

Never underestimate the HVAC grapevine. Technicians talk. Dispatchers talk. The person who answers the phone at the supply house talks. Let it be known — professionally and discreetly — that you're in the market to acquire an HVAC company. You'd be surprised how quickly the right information finds its way to you.

Reading a Listing Like a Pro

Every HVAC business listing tells two stories: the one the seller wants you to hear, and the one hiding in the numbers. Your job is to read both.

Here's what to focus on when you see a listing for the first time:

Revenue vs. Seller's Discretionary Earnings (SDE)

A listing that trumpets "$2.4 million in revenue" but shows SDE of $180,000 is telling you something important: this business has a margin problem. In HVAC, healthy SDE should be somewhere between 15-25% of revenue for a well-run small operation. If you're seeing 7-8%, either there's significant owner add-backs that haven't been adjusted, or the business is genuinely low-margin — which usually means they're competing on price, which is a terrible position to be in.

The Revenue Mix

Every HVAC business has three revenue buckets: installation (new construction and replacement), service and repair, and maintenance agreements. The mix matters enormously for valuation and risk.

A company that's 80% install revenue is essentially a project-based business. It looks great in a boom year and terrible in a downturn. A company with 40% or more of revenue coming from maintenance agreements has a recurring revenue base that shows up every month whether the phone rings or not. Guess which one is worth more per dollar of revenue?

What the Listing Hides

No listing will tell you that the owner's son-in-law is the lead installer and he's leaving the day the sale closes. No listing will mention that 35% of revenue comes from a single commercial property management company that's been hinting about switching to a national provider. No listing will explain that three of the five service vans need transmissions and the owner's been nursing them along to make the books look better for the sale.

These are the things you find in due diligence (that's Chapter 4). But you can start to sniff them out even at the listing stage by asking the right questions early:

• How many full-time employees, and how long has each been with the company?
• What percentage of revenue comes from the top five customers?
• What's the average age of the vehicle fleet?
• Are there any pending warranty claims or legal issues?
• Why is the owner selling, and what's their timeline?

If the broker or seller gets cagey about any of these, that's information too. Transparent sellers produce better deals.

The Red Flags That Should Kill a Deal

Not every HVAC business is worth buying. In fact, most aren't — at least not at the price they're asking. Here are the red flags that should make you walk away or, at minimum, demand a significant price reduction.

Declining Revenue Over Three or More Years

One bad year can happen to anyone. A key employee leaves, a big commercial contract ends, a pandemic shuts down new construction. But three consecutive years of declining revenue is a trend, not an event. It means the business is shrinking, and the owner is selling because they can see the trajectory.

Sellers and brokers will always have an explanation. "We turned away work because we couldn't find techs." "We dropped our commercial division to focus on residential." "COVID." Some of these explanations might even be true. But declining revenue means declining value, period. If you're looking at a business that did $1.8 million three years ago and $1.3 million last year, you're not buying a $1.8 million business. You're buying a $1.3 million business that used to be bigger.

Licensing and Insurance Gaps

In most states, HVAC contracting requires specific licenses — mechanical contractor, refrigerant handling (EPA 608), sometimes separate electrical or plumbing licenses depending on the scope of work. If the business's licenses are tied to the owner personally and that owner is leaving, you need to verify that you can transfer or obtain equivalent licensing before the deal closes.

Insurance is the other one. If the company's general liability or workers' comp policy has had claims, your premiums could be significantly higher than what the seller is currently paying. Request the loss runs (claims history) for the past five years. If the seller won't provide them, walk.

Deferred Maintenance on Everything

When an owner decides to sell, they often stop investing in the business. Why buy a new van when you're selling in six months? Why replace those worn-out recovery machines? Why fix the shop roof?

This is called "harvesting," and it's the seller extracting maximum cash from the business before handing you the keys. A fleet of vans that are all 8+ years old with 150,000+ miles? That's $30,000-50,000 per van you'll be spending in the first year. Recovery equipment that hasn't been calibrated? Tools that should have been retired two years ago? A shop that hasn't been painted or maintained?

All of this is negotiating leverage. But it's also a warning sign about how the owner has been running things. If they've been harvesting the physical assets, what else have they been harvesting? Customer relationships? Employee goodwill? Training?

Key-Man Dependency

If the owner is the primary salesperson, the main estimator, and the face of the company, you're not buying a business. You're buying a job — and an expensive one at that. The moment that owner walks away, the phone might stop ringing.

The same applies to key employees. If one technician handles 40% of the service calls because he's the only one the big commercial clients trust, what happens when he decides the new owner isn't his cup of coffee? You need to understand the depth of the team, not just the roster.

Messy Books

If the seller can't produce clean financial statements — P&L, balance sheet, tax returns — for the past three years, something is wrong. Either they're running cash through the business without reporting it (which means you're paying taxes on income you can't verify), or they genuinely don't know their numbers (which means they have no idea what the business is actually worth).

Either way, you can't value what you can't verify. I've seen buyers talk themselves into deals with messy books by saying "well, there's probably more cash flow than what shows on the tax returns." Maybe. But you can't take "probably" to an SBA lender, and you can't base a purchase price on the seller's word about off-the-books revenue.

Customer Concentration: The Silent Deal Killer

This is the big one. The single risk factor that has torpedoed more HVAC acquisitions than any other. And it's the one that buyers most often overlook because the revenue number looks so attractive.

Customer concentration means too much of the business's revenue comes from too few customers. In HVAC, this usually looks like a company that does a lot of work for one or two property management companies, a single general contractor, or a large commercial client like a hospital system or school district.

Here's the rule: if any single customer accounts for more than 30% of total revenue, the deal has a structural problem.

A $1.5 million asking price with 40% of revenue coming from a single property management company is a $900,000 business at best. Why? Because that property management company didn't agree to work with you. They agreed to work with the previous owner. They might like you. They might not. They might already be talking to a national HVAC chain. You have no idea, and you won't until after you've closed.

How to Evaluate Customer Concentration

Ask for a revenue-by-customer report for the past three years. Any legitimate accounting system (QuickBooks, ServiceTitan, Housecall Pro) can produce this in minutes. If the seller says they can't, that's a red flag on top of a red flag.

What you want to see:

• No single customer above 15% of total revenue (ideal)
• Top 10 customers combined below 50% of total revenue
• Stable or growing customer count year over year
• Residential maintenance agreements making up a meaningful portion of revenue

A company with 2,000 residential maintenance agreement customers at $200/year has $400,000 in nearly-guaranteed annual revenue spread across 2,000 accounts. Losing any ten of those customers is a rounding error. That's a resilient business.

A company with $400,000 coming from a single hospital system's maintenance contract has the same revenue but catastrophic risk. One procurement manager's decision, one budget cut, one competitor's lower bid — and 25% or more of your revenue disappears overnight.

The Concentration Discount

If you find a business you otherwise love but it has concentration issues, you don't necessarily have to walk away. But you do need to price the risk. The general framework I've seen work:

Take the revenue at risk (the portion from the concentrated customer that exceeds 15% of total revenue) and discount it by 50% in your valuation. So if a business does $2 million total, with $600,000 from one customer, the "at risk" amount is $600,000 minus $300,000 (15% of $2M) = $300,000. Discount that by 50%, and you're effectively valuing the business as if it does $1,850,000 instead of $2,000,000.

Then apply your multiple to that adjusted revenue figure. It's not a perfect formula, but it gets you in the right neighborhood and gives you a rational basis for your offer.

Geography, Competition, and Market Position

An HVAC business doesn't exist in a vacuum. It exists in a specific geography with specific competitors, specific demographics, and specific growth dynamics. You need to understand all of it before you write a check.

The Service Territory

Most small HVAC companies serve a radius of about 30-45 minutes from their shop. That's their territory. Beyond that, drive time kills productivity and customers get impatient waiting for a tech who's an hour away.

Look at the demographics of that territory. Is the population growing or shrinking? Are new housing developments going up? What's the median home age? (Older homes mean more replacement and repair work.) What's the commercial building density? Is there a military base, university, or hospital system that drives commercial HVAC demand?

A company doing $1.5 million in a growing suburb of Dallas with 10,000 new homes being built annually has a very different trajectory than a company doing $1.5 million in a rural county that's been losing population for twenty years. Same revenue, completely different futures.

Competitive Landscape

Search Google for "HVAC repair" and "AC installation" in the company's service area. Count the competitors. Read their reviews. Look at who's spending money on Google Ads (those are the aggressive players). Check the BBB. Look at Yelp, Angi, and Nextdoor.

What you're trying to understand is: how does this company compete? Are they the low-price leader? The premium provider? The company that's been around forever and runs on referrals? Each position has different economics and different risks.

Market Saturation

Some markets are overserved. If there are fifteen HVAC companies within a 20-mile radius all fighting for the same residential work, margins are going to be thin and customer acquisition is going to be expensive. You'll spend more on marketing, you'll face more price pressure, and you'll have a harder time finding and keeping technicians because everyone is poaching from everyone else.

On the other hand, an underserved market — maybe a growing suburb where the nearest quality HVAC company is a 40-minute drive — is an opportunity. You might pay a bit more for a business in that territory, and it'll be worth every penny.

The Google Presence

Here's something that didn't matter twenty years ago but matters enormously now: the company's online reputation. Check their Google Business Profile. How many reviews do they have? What's the average rating? Are the reviews recent, or did they all come in two years ago and stop?

A company with 400+ Google reviews averaging 4.7 stars has an asset that took years to build and can't be replicated quickly. A company with 15 reviews averaging 3.2 stars has a reputation problem that will cost you real money to fix — if it can be fixed at all.

Also check whether the company ranks organically for key search terms. "AC repair [city name]" and "heating installation [city name]" are the money keywords. If the company you're looking at shows up on page one, that organic ranking is valuable. If they're nowhere to be found, you'll be starting from scratch on marketing.

Building Your Deal Pipeline

Finding the right HVAC company to buy isn't an event. It's a process. And like any process, it works better when it's systematic.

Think of your acquisition search like a sales pipeline. At the top, you're generating leads — companies that might be available. In the middle, you're qualifying those leads — do they meet your criteria? At the bottom, you're doing the deep evaluation that leads to a letter of intent.

Define Your Buy Box

Before you look at a single listing, write down exactly what you're looking for. Be specific:

• Revenue range (e.g., $800K-$2.5M)
• Geography (specific metro area, maximum distance from your home)
• Revenue mix preference (residential vs. commercial vs. mixed)
• Minimum employee count and maximum customer concentration
• Deal structure preferences (SBA eligible, seller financing acceptable)
• Must-haves vs. nice-to-haves (e.g., maintenance agreement book is a must-have)

This is your buy box. Every opportunity gets measured against it. If a company doesn't fit your buy box, don't waste time on it — no matter how interesting the price looks. Discipline in your search criteria is what keeps you from spending six months chasing a deal that was never right for you.

Set Up Your Monitoring System

Create saved searches and alerts on every online marketplace. Set a weekly calendar reminder to check them. Build a simple spreadsheet — or use a CRM if you're the type — to track every opportunity you come across. Include columns for: company name, location, asking price, revenue, SDE, source, date found, status, and notes.

This sounds like overkill until you're three months into your search and you've looked at forty businesses and you can't remember which one was the company in Tampa with the fleet problem vs. the one in Orlando with the customer concentration issue. Track everything.

Activate Your Network

Send a short, professional email or letter to every relevant contact you have. Supply house managers, manufacturer reps, industry association contacts, your own accountant and attorney, former colleagues, other HVAC professionals you respect. The message is simple: "I'm actively looking to acquire an HVAC business in [geography]. If you hear of anything, I'd appreciate the introduction."

Then follow up every 60-90 days. People forget. A gentle reminder keeps you top of mind when they hear about an owner who's thinking about selling.

Evaluate Quickly, Decide Quickly

When an opportunity comes in, evaluate it against your buy box within 48 hours. If it passes the initial filter, request the information package and start your preliminary analysis within a week. If it doesn't pass, move on immediately.

The HVAC acquisition market is more competitive than it was five years ago. Private equity roll-ups are active in many markets, and they move fast. If you find a business that meets your criteria, don't sit on it for three weeks while you think about it. Get your initial questions answered, assess the fit, and either move forward with a letter of intent or pass.

The Numbers Game

Here's a reality check. Most experienced acquisition searchers look at 50-100 opportunities, do preliminary analysis on 10-15, conduct deep due diligence on 3-5, and close on 1. That's a 1-2% conversion rate from initial lead to closed deal. If you've only looked at five businesses and you're ready to buy one of them, slow down. You probably haven't seen enough of the market to know what good looks like.

Give yourself a minimum of six months for the search phase. Twelve months is more realistic if you're being selective about geography and size. I know that feels like a long time when you're eager to get started. But buying the wrong HVAC company will cost you years. Spending extra months on the search is cheap insurance.

The work you put into finding the right company pays dividends for decades. Every dollar of effort you invest in sourcing, screening, and evaluating opportunities is a dollar you don't have to spend cleaning up a bad deal later. And trust me — cleaning up a bad HVAC acquisition is the most expensive education money can buy.

In the next chapter, we'll tackle the question every buyer eventually asks: what is this business actually worth? Valuation in HVAC has its own rules, and they're not the same rules you'll read about in a generic business-buying guide. See you in Chapter 3.