HVAC business valuation: what drives the multiple in 2026

What are HVAC businesses selling for in 2026?

There are really two HVAC markets, and mixing them up is how owners end up disappointed.

The first is the deal market that gets reported: companies large enough for private equity platforms and big strategic buyers. Capstone Partners’ July 2026 HVAC services update reports average multiples of 2.0x revenue and 9.5x EBITDA across 2024 to year to date 2026, down from 13.3x EBITDA in the 2021 to 2023 run. PKF O’Connor Davies’ August 2026 update says HVAC services multiples are north of 10x EBITDA for high-margin businesses with predictable revenue and a large service component, and that larger companies typically trade at higher multiples. (Its often-quoted 6x to 8x range is for HVAC distributors, not contractors.)

In between sit companies worth $2M to $50M. Across all industries, the IBBA and M&A Source Market Pulse for Q2 2026 put multiples at about 4x EBITDA for businesses worth $2M to $5M and about 5.8x for $5M to $50M. That gives a sense of how fast the multiple climbs with size.

The second is the Main Street market: one to ten trucks, owner on the tools or on the phone, priced on SDE and often bought by an individual with an SBA loan. Those businesses trade far lower. BizBuySell’s average across all industries is 2.58x cash flow for sales from Q3 2021 through Q2 2026.

The reported deal multiples come from companies big enough to publicize their sales. They are a ceiling for what is possible with scale and systems, not a quote for a five-truck shop.

Why is private equity buying so many HVAC companies?

Because the work does not go away. Systems break in every season, equipment has to be replaced, and a lot of homeowners and building owners pay every year for maintenance. To an investor that looks like dependable cash flow in a market full of small owners who are getting close to retirement.

Capstone counts 92 announced or completed HVAC services deals in 2026 through its July update, down 4.2% on the same period a year earlier. Financial sponsors held steady (47 deals, up from 46) while strategic buyers did fewer (45, down from 50). Multiples are down from the 2021 to 2023 peak, but the buying hasn’t stopped.

For an owner, the practical point is that the buyers paying the most are paying for systems and recurring revenue. Trucks and a phone number are the cheap part.

What drives an HVAC company’s multiple?

Two HVAC companies with the same profit can get very different offers. These are the five things that explain most of the gap.

1. 1Maintenance agreement baseA large book of active service plans is the closest thing HVAC has to subscription revenue. It also feeds repair and replacement work. Buyers will ask how many plans you have, the renewal rate and how many renew automatically.
2. 2Service mixSteady service and maintenance work is valued above lumpy new construction. Commercial service contracts are valued for their stability; heavy dependence on one builder or one property manager is a risk.
3. 3Technician retentionTechs are the scarce resource. A team that stays, with documented training and clear pay plans, is worth more than one that turns over every season.
4. 4Owner independenceIf you dispatch, quote every replacement and take the after-hours calls, a buyer is pricing what happens when you stop. The full playbook is in How to make your business run without you (and why buyers pay for it).
5. 5Clean, monthly booksJob costing by service line, monthly financials closed on time, and add-backs you can document. Messy books lower offers and slow deals down.

Where do HVAC companies lose value without noticing?

In our work, the same leaks show up in almost every service business, and they hit HVAC hard because demand spikes with the weather.

• Missed calls in peak season. The first hot week of summer, the phones ring while every tech is on a job. A missed call is usually a lost job. An AI receptionist answers every call, triages emergencies and books the visit (our AI Receptionist page).
• Scheduling by hand. At one plumbing and field service company we worked with, the scheduler spent 3 to 4 hours a day building a week that software should have built, part of $23,400 a month in operational waste found before the build (the plumbing and field services case study).
• Service plans that lapse. Plans that renew only when someone remembers to call. Automated renewals and reminders protect the base buyers pay for.
• Replacement estimates nobody follows up. A high-ticket quote that goes quiet is revenue you already spent money to create.

How should you prepare an HVAC business for sale?

Start two to three years out if you can, because the things that raise the multiple take time to show up in your numbers.

• Grow the maintenance plan base and make renewals automatic.
• Take yourself out of dispatch, quoting and after-hours calls, and write down the rules you use.
• Close the books every month, with job costing you can defend.
• Put every customer, plan and job history in one system, not in your phone.
• Fix the leaks above, so the earnings a buyer sees are the earnings the business can actually produce.

Not sure where to start? book a free consult and we will look at the drivers buyers check with you, and tell you which two gaps to close first.

Where does Hexona fit?

We don’t value or broker businesses. We build and run the AI employees that fix the leaks above: answering every call, following up every estimate, keeping service plans renewing and taking scheduling off the owner’s plate. You can see how that works for HVAC and plumbing companies at AI for plumbing, hvac and home services, or book a free consult to talk through your numbers.