How to Sell an HVAC Company

If you own an HVAC company doing $3M+ in revenue, you've probably gotten the call. Some friendly voice from a private equity firm or a "platform company" wants to take you to lunch and "explore a partnership." These calls have increased 400% since 2019 in the residential services space, and HVAC is ground zero for PE roll-up activity.

The question isn't whether you can sell. It's whether you're getting a fair price or leaving hundreds of thousands on the table by accepting the first offer that lands in your inbox. I've seen the difference between a negotiated process and an accepted cold call — it's routinely 15-25% of enterprise value. On a $5M deal, that's $750K-$1.25M you'd never see.

Why PE Firms Are Obsessed with HVAC

Before you negotiate, understand why they're calling. HVAC businesses check every box PE firms care about: recurring revenue from maintenance contracts, essential service (nobody skips a broken AC in July), fragmented market (tens of thousands of small operators), and high customer retention. Firms like Apex Service Partners, Wrench Group, and HomeServe have built billion-dollar platforms by acquiring companies exactly like yours.

This is good news for sellers. When multiple well-funded buyers want the same asset class, prices go up. HVAC companies are currently trading at 4-7x EBITDA for add-ons and 7-10x for platform acquisitions. Five years ago, those numbers were 3-5x and 5-7x respectively. The market has shifted decisively in sellers' favor.

Platform vs Add-On: Understanding What You're Worth

The single biggest factor in your valuation is whether a buyer sees you as a platform or an add-on. The pricing difference is massive.

A platform acquisitionis the anchor company a PE firm builds around. They're looking for $5M+ revenue, a management team that can run without the owner, established processes, and a market position they can grow through acquisitions. Platform companies command 7-10x EBITDA because the PE firm is paying for infrastructure, not just cash flow.

An add-on acquisitionis a smaller company bolted onto an existing platform. The platform already has the back office, marketing, and management layer. They're buying your trucks, your technicians, and your customer list. Add-ons trade at 4-7x EBITDA because the buyer can strip out your overhead and keep the revenue.

Here's what that means in dollars: an HVAC company with $1M EBITDA sells for $4-7M as an add-on or $7-10M as a platform. Same business, $3-6M difference based on how the buyer categorizes you. If you're close to platform territory, it may be worth investing 12-18 months in building management depth before going to market.

Evaluating That First PE Offer

That unsolicited offer sitting on your desk? Here's how to evaluate it.

First, understand the structure. PE offers are almost never 100% cash at close. A typical HVAC acquisition might be structured as 60-70% cash at closing, 20-30% in equity rollover (you keep a stake in the platform), and 10-20% in an earn-out tied to revenue or EBITDA targets over 1-2 years.

The headline number is designed to impress, but the details determine what you actually receive. An "$8M offer" might really be $5M cash, $1.5M in illiquid equity, and $1.5M in earn-out that you may or may not hit. I always tell sellers to focus on the at-close cash number and treat everything else as upside.

Second, calculate the implied multiple. Take the enterprise value offered, subtract any debt they're not assuming, and divide by your adjusted EBITDA. If you're getting a cold-call offer at 4-5x EBITDA, that's an add-on price. Running a competitive process with 8-12 interested parties routinely pushes that to 6-7x or higher.

Running a Competitive Process (How to Get 15-25% More)

The data is clear: HVAC companies that run a structured sale process with an M&A advisor receive 15-25% more than those that accept direct offers. Here's why.

A competitive process creates urgency and leverage. When Apex Service Partners knows that Wrench Group, Service Experts, and three other PE-backed platforms are all bidding on your company, they can't lowball you. Each buyer knows that if they don't put their best foot forward in Round 1, they may not get a Round 2.

The process typically works like this: your advisor prepares a confidential information memorandum (CIM), contacts 30-50 qualified buyers under NDA, collects initial indications of interest, narrows to 5-8 serious bidders for management presentations, and then runs a final bid process. The whole thing takes 4-6 months from launch to LOI.

I've seen HVAC companies receive 15+ LOIs in a competitive process. Even if you ultimately sell to the same PE firm that made the original cold call, the process typically adds $500K-$2M to the deal value on a mid-market transaction.

Preparing Your HVAC Company for Sale

The preparation phase is where you build value. Focus on these areas 6-12 months before going to market:

Maintenance contract cleanup. Buyers love recurring revenue, and maintenance agreements are the closest thing HVAC has to it. Review every contract: are they current, properly documented, and actually generating margin? A book of 2,000 active maintenance agreements at $200/year is worth significantly more than 2,000 one-time install customers. Target 30%+ of revenue from maintenance and service agreements.

Technician documentation and retention.Your technicians are your business. Buyers will want to know: how many licensed techs do you have, what's your turnover rate, are they on non-competes, and what happens if the top 3 leave? Get employment agreements in place with reasonable non-competes (12-18 months, within your service area). Offer retention bonuses tied to the transaction close.

Fleet and equipment documentation. Create a complete inventory of every vehicle, tool, and piece of equipment. Include age, condition, maintenance records, and replacement cost. Buyers will use this to estimate near-term capex needs. Well-maintained fleet with consistent replacement cycles signals a professionally run operation.

Financial statement preparation.If you've been running personal expenses through the business (the boat, the hunting lease, the wife's car), get three years of clean financials prepared by a CPA. Buyers need to see normalized EBITDA, and surprises during quality of earnings analysis kill deals or reduce prices.

The Earn-Out and Employment Agreement

Almost every PE-backed HVAC acquisition includes a post-close earn-out and an employment agreement. These are heavily negotiated and have enormous financial impact.

Earn-outs typically run 1-2 years and are tied to revenue retention (maintaining 90%+ of trailing revenue) or EBITDA targets. The key negotiation points are: what metrics trigger the earn-out, who controls the business decisions that affect those metrics, and what happens if the buyer makes changes that hurt your numbers. Get an M&A attorney who has done 50+ earn-out deals. The language matters enormously.

Employment agreementstypically require you to stay 1-2 years as a general manager or president of your division. Compensation is usually $150K-$250K base salary plus a management bonus. The sticking points are: what authority do you retain, who do you report to, what constitutes "cause" for termination (which would forfeit your earn-out), and how restrictive is the non-compete if you leave.

I always tell HVAC owners: negotiate the employment agreement and earn-out with the same intensity as the purchase price. A poorly structured earn-out can cost you 20-30% of the total deal value.

Timeline and Costs

A well-run HVAC sale process takes 6-9 months from engagement to closing. The costs include:

• M&A advisor fees: 4-8% of enterprise value (on a $5M deal, that's $200K-$400K)
• Legal fees: $30K-$75K for seller's counsel
• Accounting/QofE preparation: $15K-$30K
• Total transaction costs: typically 6-10% of deal value

These costs seem high until you compare them to the alternative. A direct PE offer with no competitive process, no advisor, and a free lawyer from the buyer's firm will almost certainly net you less money after fees than a professionally run process.

The Bottom Line

The HVAC M&A market is the best it's ever been for sellers. PE firms are paying premium multiples, competing aggressively, and closing quickly. But the difference between a good outcome and a great outcome comes down to preparation, running a competitive process, and negotiating the post-close terms with the same rigor as the headline price. Don't let a smooth-talking PE associate convince you that their first offer is their best offer. It never is.