Average Revenue HVAC Company: What Buyers Need to Know

A $1.4M HVAC company sounds like a solid acquisition target. And it might be. But “average revenue” is not the number that determines whether you should buy it.

Most buyers fixate on top-line revenue. Lenders do not care about it. What actually matters is what falls to the bottom after you pay technicians, buy parts, cover fuel, and service equipment. That gap between revenue and real earnings is where deals live or die in underwriting. We have watched buyers get excited about a $2M top line only to discover $140K in actual cash flow underneath it.

Here is what average revenue actually looks like in HVAC, why it varies so dramatically, and how to use those numbers to find a deal worth financing.

The Service Mix Question That Changes Everything

Before we even get into the revenue numbers, you need to understand this: not all HVAC revenue is created equal.

Maintenance contract revenue is the most valuable kind. It is recurring, predictable, and it keeps customers locked in during peak season when competitors are fighting for the same calls. A company with 300 active maintenance agreements is a fundamentally different business than one running purely on inbound service requests. Buyers pay a premium for that predictability. So do lenders.

Here is how service mix typically affects where deals price:

Primarily maintenance and service: 2.5x to 3.5x SDE
Mixed service and installation: 2x to 3x SDE
Primarily new construction and installation: 1.5x to 2.5x SDE

New construction work is the riskiest category for a buyer. Revenue can fall off a cliff if a general contractor relationship does not transfer. And an SBA lender will ask hard questions about revenue concentration when a large percentage of sales comes from a handful of commercial relationships.

If you are evaluating an HVAC company that does $2M in revenue but 60% of it comes from two GC relationships, you have a concentration problem. That is not a maybe. Factor it into your offer, or walk.

What the Average Revenue of an HVAC Company Actually Looks Like

Average revenue for an HVAC company depends almost entirely on company size, service mix, and geography. A one-truck owner-operator doing residential service calls in the Midwest runs very differently from a 15-tech commercial firm in a major metro.

Here is a realistic range based on what we see across the deals we review every week:

One to two technicians: $400K to $800K in annual revenue
Three to five technicians: $900K to $2.5M in annual revenue
Six to ten technicians: $2M to $5M in annual revenue
Ten-plus technicians: $5M and above

For the SBA acquisition market (which is the sweet spot we work in, roughly $500K to $5M in acquisition price), that tends to correspond with HVAC companies doing somewhere between $800K and $4M in annual revenue, depending on their margins and what multiple the market supports.

The national median for a small HVAC business lands in the neighborhood of $1M to $1.5M in annual revenue. But that number is almost meaningless without context, which is why we start with service mix before we ever look at top-line figures.

Why Revenue Alone Does Not Tell You Anything

Two HVAC companies can both do $1.5M in revenue and produce radically different seller’s discretionary earnings.

Say you are looking at Company A. Service-heavy model: maintenance contracts, tune-ups, repeat residential customers. Margins are strong. SDE comes in around $350K to $400K.

Company B also does $1.5M. But they are a heavy equipment installer. Big commercial jobs, thin margins, subcontractor costs everywhere. SDE is $180K.

Same top line. Completely different acquisition target.

When we run initial deal analysis, we care about SDE as a percentage of revenue. For a well-run small HVAC company, 20% to 30% SDE margins are typical. Best-in-class operators with strong recurring revenue can push 35%. Anything under 15% is a red flag unless there is an obvious cost anomaly the new owner can fix.

And here is the part that trips people up: the SDE number your broker gives you is a starting point, not a fact. Always discount it. We typically see a 15% to 50% gap between the broker’s stated SDE and what the business actually produces once you do the proof-of-cash analysis against bank statements and tax returns. If the bank deposits do not tie to the reported revenue, none of the math above holds up.

How SBA Lenders Underwrite HVAC Acquisitions

SBA lenders are not looking at revenue. They are looking at debt service coverage ratio, and it starts with adjusted cash flow.

Take SDE, subtract a market-rate management salary for yourself (the incoming owner). The resulting number is what has to cover the annual debt service on your SBA loan.

Our target is a 2x DSCR. That is not aspirational. That is what we structure toward on every deal. We will accept 1.5x if there are clear synergies or a straightforward operational improvement the new owner can implement. Below 1.5x, we kill the deal.

Walk through an example. An HVAC company listed at $1.1M is doing $1.2M in revenue with $300K in SDE. You replace the owner-operator at a $90K management salary. That leaves $210K in adjusted cash flow.

Your SBA 7(a) loan on a $1.1M deal (assuming 10% equity injection of $110K) is $990K. At current SBA rates on a 10-year term, that is roughly $120K to $135K in annual debt service.

$210K divided by $128K gives you about a 1.64x DSCR. That clears our 1.5x floor. Not where we want it ideally, but workable, especially if the service mix is recurring and the cash flow is provable through bank statements.

Now compare that to the same company listed at $1.3M. The SBA loan jumps to $1.17M, debt service climbs to $140K to $155K, and suddenly you are looking at a 1.4x DSCR. Below our floor. That deal does not work at that price. The listing price is not the number that matters. The DSCR is.

That is your negotiating anchor.

All of that covers the financial modeling. The operational side is a different conversation.

What We Look for When Reviewing an HVAC Deal

We review 120 to 150 deals per week across all industries. In HVAC, here is what separates a deal worth pursuing from one we kill in the first 20 minutes.

Owner dependency. The first thing we check is whether the business has employee technicians or relies on owner-operator labor. If the owner is on the truck 40 hours a week, that cash flow does not fully transfer. The buyer either takes over that role or hires to replace it. Either way, SDE takes a hit that needs to be modeled before you ever submit an LOI.

Seasonality. HVAC revenue is inherently lumpy. We want to see how the business performs in the shoulder months. A company that does 70% of its revenue in summer is not necessarily a bad buy, but you need working capital reserves (we require 2 to 6 months depending on the business) and a lender comfortable with cyclical cash flow.

Equipment. Old fleet and aging service vehicles are a capital expenditure liability that shows up after close. We request a fleet schedule and equipment list in early diligence. If the owner has been deferring maintenance on a $200K vehicle fleet, that cost belongs in your valuation model. Not after close. Before.

Side note: this is also why we push for proof of cash so aggressively at this stage. The fleet might look fine on paper, but if the owner has been running personal vehicle expenses through the business or categorizing capital repairs as maintenance, those numbers tell a different story than the P&L does.

Add-Backs Buyers Commonly Miss in HVAC

Before you accept the SDE figure a broker gives you, build the number yourself.

HVAC companies carry a specific set of owner add-backs that buyers often leave on the table. Here are the common ones:

Owner vehicles. If the owner runs a truck or two through the business for personal use, that depreciation and insurance expense gets added back. On a small operation, this can be $15K to $25K.

Owner’s compensation above market rate. If the seller was paying himself $200K but the job could be done by a hired GM at $100K, the $100K delta is an add-back.

Family on payroll. A spouse on the books for $40K who will not be staying after the sale. Add-back.

Non-recurring expenses. One-time legal fees, equipment replacement that will not repeat, a year where the owner replaced all the fleet vehicles.

Above-market owner rent. If the owner owns the building and leases it to the business at above-market rates, the excess is an add-back. (This one gets missed more than you would think, especially in markets where commercial rents have shifted significantly over the past few years.)

Total these up and the real SDE is often $30K to $80K higher than what the broker presents. That changes the acquisition math, and in some cases, it is the difference between a deal that clears underwriting and one that does not.

Seller Note Structure in HVAC Acquisitions

On 90% or more of the SBA deals we close, we negotiate a seller note on 10-year full standby at 0% interest. Zero interest. Zero payments. For the full term of the SBA loan. This is not a last resort. It is a core part of how we structure every deal.

Here is why it matters. A seller note on full standby during the SBA loan term does not count as debt service in the lender’s DSCR calculation. It is essentially deferred consideration that does not affect the numbers that determine your loan approval.

In a typical HVAC deal at $1.2M, the structure might look like this: $120K equity injection (10%), $980K SBA loan, and a $100K seller note on standby. The 10% equity injection satisfies the SBA minimum, but the seller note is what provides additional de-risking on the deal. Without it, you are relying entirely on that 90/10 split to carry the structure, and in most cases, that is not enough cushion for the buyer or the lender. The seller note gives you room in the DSCR calculation and reduces effective cash needed at close.

Not every seller will accept this structure initially. But from what we have seen, most come around when the alternative is losing a qualified, SBA-approved buyer. It is worth knowing this exists before you start negotiating, because most brokers will not bring it up.

Frequently Asked Questions

What is the average revenue of a small HVAC company?

A small HVAC company with one to three technicians typically generates between $400K and $1.5M in annual revenue. The range is wide because revenue per tech varies based on service mix, geography, and whether the business focuses on residential service calls, maintenance contracts, or new installation work. Revenue alone does not determine value for acquisition purposes. SDE margins matter more.

How much profit does an HVAC company make?

A well-run small HVAC company typically produces SDE margins of 20% to 30%. On $1M in revenue, that is $200K to $300K in seller’s discretionary earnings. Service-heavy businesses with maintenance contract bases tend to run at the higher end of that range. Installation-heavy businesses with subcontractor costs often come in lower, sometimes under 15%.

What multiple do HVAC companies sell for?

HVAC companies typically sell for 2x to 3.5x SDE, depending on service mix, recurring revenue, revenue concentration, and owner dependency. Businesses with strong maintenance contract bases and documented recurring revenue command the top of that range. Pure installation businesses or heavily owner-dependent operations sell at a discount.

Can you buy an HVAC company with an SBA loan?

Yes. HVAC businesses are eligible for SBA 7(a) financing. You need a minimum 10% equity injection, and the deal needs to clear a 1.5x DSCR at a minimum, though we target 2x on every deal we structure. The business must have at least two to three years of tax returns showing stable or growing earnings. The SBA loan maximum is $5M, which covers most acquisitions in this space.

How do you value an HVAC company for acquisition?

Start with three years of tax returns and build a normalized SDE figure, including all legitimate add-backs. Apply a multiple based on the business’s service mix, customer concentration, and owner dependency. Then run the SBA debt service model to confirm the deal clears underwriting at the proposed price. If it does not clear at the ask, that is your negotiating anchor.

Thinking About Acquiring an HVAC Business?

HVAC is one of the more acquisition-friendly industries for SBA financing. Essential service, recurring revenue potential, strong local demand. But the deals require careful underwriting before you go under LOI, and the average revenue HVAC company numbers you see online will not tell you whether a specific deal actually works.

Regalis Capital runs a done-for-you acquisition advisory service. We find deals, build the financial model, negotiate the price and structure, and manage the SBA process from start to close.

If you are serious about acquiring an HVAC company and want a team that has done this across hundreds of deals, start here.