Residential HVAC Company — Midwest U.S.

A $3.2M residential HVAC company listed on a major marketplace. 14 employees, 1,200 active service agreements, and 21 years in business. The listing paints a picture of a mature, profitable operation. Here is what holds up, what does not, and what a serious buyer needs to answer before writing an LOI.

What the numbers tell us

$720K in SDE on $3.8M revenue is a 18.9% margin. For residential HVAC, that is within range but not generous. Well-run residential HVAC companies in this revenue band typically produce SDE margins between 15% and 25%, depending on their mix of service, repair, and installation work. This company sits in the lower half.

That is not bad. It could mean the owner pays his technicians well, carries a newer fleet, or invests in marketing. All of those are good things for a business you plan to own for a decade. Or it could mean install margins are thin and the business is pricing below market to maintain volume. The listing does not say.

The multiple

4.44x SDE is on the high end for HVAC. Comparable residential HVAC companies in the $2M to $5M range typically trade between 3x and 5x, with the premium going to businesses that have strong recurring revenue, low owner dependence, and an established brand in their market. At 4.44x, the seller is pricing in the service agreement base and the 21-year track record. Whether that premium is justified depends entirely on how real and transferable those advantages are.

For a first-time buyer using an SBA 7(a) loan, the math gets tight at this price. A $3.2M acquisition with 10% equity injection means roughly $320K down and $2.88M financed. At current SBA rates, debt service runs approximately $360K to $380K annually. That leaves $340K to $360K from the stated SDE for owner compensation, working capital, and a margin of safety. Workable, but there is not much room for the SDE to come in lower than stated. Run the salary replacement math carefully here.

Revenue composition

The listing mentions 1,200 active service agreements. If those agreements average $200 to $300 annually (typical for residential HVAC maintenance contracts in the Midwest), that is $240K to $360K in recurring revenue. Call it roughly 7% to 9% of total revenue. Meaningful but not dominant.

The remaining 91% to 93% is some mix of repair calls, system replacements, and new installations. That mix matters. Repair work tends to be higher-margin and less seasonal. Installations are larger tickets but lower margin and tied to construction cycles and homeowner capital expenditure decisions. A business that is 60% install revenue behaves very differently from one that is 60% repair and maintenance.

What we would want to verify

The questions below are ordered by how much each answer could change your assessment of this deal.

1. What is the actual revenue split between service, repair, and install? This single data point reshapes the entire valuation. A business that is 60% repair and maintenance with 1,200 service agreements has predictable, defensible revenue. A business that is 60% new installations is a sales operation that depends on the owner's ability to close $15K to $25K jobs. If the owner is the primary salesperson, that revenue walks out the door with him.
2. Who holds the contractor's license? In most Midwest states, the HVAC contractor's license is held by an individual, not the company. If the owner holds the license, you have a regulatory problem on day one. You either need to hold (or quickly obtain) the license yourself, or you need a licensed employee who stays. Some states allow a transition period. Others do not. This is a binary question with deal-killing potential. For a deeper look at HVAC-specific acquisition issues, including licensing, see our buyer framework.
3. What does the owner actually do every day? The listing says the business has 14 employees and runs service, repair, and install. Someone is dispatching those technicians. Someone is bidding install jobs. Someone is handling warranty claims and callbacks. Someone is managing the relationship with the equipment distributor. If the answer to all four is "the owner," then this is not a semi-absentee business at a 4.44x multiple. It is a full-time job with a personal guarantee attached.
4. How seasonal is the cash flow? Midwest HVAC is inherently seasonal. Heating demand peaks November through February. Cooling demand peaks June through August. The shoulder months (March through May, September through October) can be slow. A business that manages this well has service agreements that generate year-round callbacks, a marketing engine for shoulder-season work, and a line of credit to cover payroll in slow months. A business that does not manage it has layoffs in April and a scramble to rehire in June. The listing says nothing about seasonal patterns, and that silence is worth asking about.
5. What is technician tenure and compensation? Eight technicians in a 14-person company means the technicians are the business. The national shortage of licensed HVAC technicians is not hypothetical. If three of those eight leave in the first year, the new owner is not running an HVAC company. They are running a recruiting firm that occasionally fixes furnaces. Key questions: average tenure, current pay versus market rate, and whether any technicians have non-competes or retention agreements. Also whether any are related to the owner, which is common in 21-year-old family operations.
6. What is the service agreement renewal rate? 1,200 active agreements sounds strong. But if the renewal rate is 60%, you lose 480 agreements a year and need to sell 480 new ones just to stay flat. If the renewal rate is 90%, you lose 120 and the base compounds over time. The renewal rate tells you whether those 1,200 agreements are an asset or a treadmill.
7. What does the fleet and equipment look like? HVAC is more capital-intensive than most service businesses. A 14-person operation likely runs 8 to 10 service vehicles, plus diagnostic equipment, recovery machines, and inventory. If those trucks are 8 to 10 years old, you are looking at $200K to $400K in fleet replacement over the next 3 years. That does not show up in the SDE, but it shows up in your bank account. Ask for a vehicle list with year, mileage, and condition.
8. What are the warranty obligations? HVAC installations typically carry 1-year labor warranties and 5 to 10-year manufacturer parts warranties. The labor warranty is on the installer, meaning you. If the business installed 200 systems last year, you are inheriting 200 potential callback obligations. What does the historical callback rate look like? What is the average cost per warranty claim? This is a hidden liability that many first-time buyers overlook.

Industry context

Residential HVAC is one of the most popular acquisition targets for first-time buyers, and for good reason. The business model is understandable, the demand is non-discretionary (people need heat), and the industry is large enough to be well-documented but fragmented enough to acquire without competing against national players.

What works in residential HVAC

• Non-discretionary demand. When a furnace fails in January in Ohio, nobody waits until spring to fix it. Emergency repair calls are high-margin, high-urgency, and recession-resistant.
• Service agreement stacking. Every installation creates an opportunity for an ongoing maintenance contract. Over years, a well-run HVAC company builds a base of recurring revenue that smooths out seasonality and provides a pipeline of replacement sales when aging systems reach end-of-life.
• Brand moat in local markets. HVAC purchasing decisions are trust-driven. Homeowners ask neighbors, check reviews, and call the company their builder recommended. A 21-year reputation in a Midwest metro is genuinely hard to replicate.

What to watch for

• Technician scarcity is structural. The average HVAC technician is in their mid-40s. Trade schools are not producing enough graduates to replace retirements. This is a long-term supply problem that shows up as wage pressure, poaching between competitors, and quality control issues when you hire less experienced workers to fill gaps.
• Regulatory and refrigerant transitions. The phase-down of R-410A refrigerant (moving to R-454B and other lower-GWP alternatives) is underway. Equipment lines are changing. Technicians need retraining. Inventory purchased today may not be compatible with systems sold next year. A buyer who does not understand where the business sits in this transition is buying into a moving target.
• Cash flow timing. Revenue and expenses do not line up neatly in seasonal businesses. You collect big install payments in June but need to carry payroll and insurance through March. First-time buyers who model annual cash flow without looking at the monthly pattern get surprised by a $50K to $80K working capital gap in the shoulder months. The SBA 7(a) process does not typically fund working capital separately, so you need to plan for this.

How this compares

In our first deal analysis, we looked at a $1.8M commercial cleaning company. That business was simpler: lower price, lower skill requirements for the workforce, and a revenue model built almost entirely on recurring contracts. The key risks were customer concentration and manager retention.

This HVAC deal is a different animal. The price nearly doubles. The workforce needs licensed, skilled technicians who are in short supply. Revenue comes from a mix of recurring and project-based work, which means the buyer needs to understand sales cycles and seasonal cash flow. Regulatory requirements (licensing, refrigerant compliance, building codes) add a layer of complexity that does not exist in cleaning.

The common thread: in both cases, the asking price assumes a smooth ownership transition, and in both cases, the biggest risk is that the transition is not smooth. For the cleaning company, the risk was whether the managers and clients stayed. For this HVAC company, the risk is whether the technicians stay, whether the license transfers, and whether the owner's sales relationships survive the handoff. Different industry, same fundamental question: what exactly are you buying, and how much of it walks out the door on day one?

Would we take this further?