Busy But Broke: Why Your HVAC Business Loses Money on $150 Service Calls

More than 50% of home service businesses don’t run with a profit. Not businesses that failed and closed. Businesses still running trucks, still answering phones, still sending techs to calls. Losing money the whole time.

That’s what April Sackfield sees daily in her work at NumberConstruct and Fiscal Management Group, handling books for HVAC contractors across the U.S. and Canada.

“I would probably say, from my observations, more than 50% of home service businesses don’t run with a profit… Some aren’t even making enough to pay the bills.”

The data backs her up. Industry benchmarks show the average HVAC contractor operates on a net profit margin of just 2.5% to 5%.¹ That’s not a cushion. That’s a razor’s edge. One bad callback, one surprise warranty claim, and the entire year’s profit vanishes. Meanwhile, top-performing contractors consistently hit 15% to 25% net margins.² Same trade. Same customers. Different results.

The difference comes down to one thing most contractors never learn: what a job actually costs. Especially now, with HVAC shipments down 42-49% and the industry shifting toward a repair economy, every service call has to carry its own weight.

The $20 Capacitor That Costs $177

You’ve seen this scenario. Customer needs a capacitor. The part costs $20. The invoice says $300. And somewhere in the back of your mind, you think: someone’s getting ripped off.

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Run the real numbers and that thinking falls apart.

A technician paid $30/hour doesn’t cost the business $30/hour. Add employer taxes, workers comp, health insurance, retirement matching, PTO, training, and uniforms, and that $30 wage becomes $40-45 in true labor cost. Industry standard multipliers run 1.25x to 1.50x base wage.³ Misclassify someone as a subcontractor to dodge those costs and you’re looking at six-figure penalties and back wages. A capacitor replacement takes roughly an hour on site, but getting there and back adds another hour of paid time. At $42/hour burdened rate, labor alone costs $84.

Then comes the truck. Fuel at 10-14 MPG, commercial insurance, maintenance, depreciation on a $60,000-75,000 vehicle. Divide total annual costs by billable hours and that van costs $18-25/hour to operate. For a two-hour call, add another $40.

Then comes overhead: rent, utilities, software, phones, professional fees, the hours spent on estimates and callbacks that don’t bill. Small HVAC shops average 30-40% overhead as a percentage of gross revenue.⁴ That adds roughly $33 to the job.

Add it up: $20 part plus $84 labor plus $40 vehicle plus $33 overhead equals $177 in true cost. At $150, you lose $27. At $200, you clear $23 with no margin for error. At $300, you finally hit a sustainable profit.

The contractor charging $150 to “win the job” isn’t competing. He’s subsidizing customers with his own future.

The “Busy but Broke” Trap

This math explains why high revenue doesn’t mean profitability. Industry consultants call it “Busy but Broke”: trucks rolling, dispatch board full, bank account empty.

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The income data makes this stark. Workyard research shows the average HVAC business owner earns $598,000 annually, but the median is just $76,000.⁵ That gap means half of all owners take home roughly what a senior technician earns. They’ve bought themselves a job with all the risk and none of the upside.

For technicians who’ve watched customers balk at $300 invoices and thought “I could do it cheaper,” here’s the truth: you probably can’t. Not sustainably. The “rage quit” technician who leaves a shop thinking his boss was gouging people often struggles on his own. He saw the $20 part and $300 invoice and assumed his employer was printing money. What he didn’t see was the $157 in invisible costs between those numbers.

What Profitable Contractors Know

The gap between a 2.5% margin and a 20% margin isn’t luck or location. It’s knowing numbers that most contractors never calculate.

Profitable contractors can tell you their labor burden rate, their vehicle cost per hour, and their overhead allocation. They price from formulas, not feelings. A contractor who aims for 30% margin and marks up a $100 part to $130 has made a critical error: that price only delivers 23% margin. To hit 30%, the selling price needs to be $143. Multiply that mistake across a year and you’ve eroded your entire net profit. Smart contractors build price books using formulas that guarantee target margins, understanding the principle of creating fair value exchange.

They also separate their roles. A profitable owner pays themselves a market-rate salary for technician work, management work, and sales work, then tracks owner profit separately. If the business only “works” because the owner skips their paycheck, the business doesn’t work. At some point, the goal has to shift from doing the work to building a business that doesn’t depend on you.

And they review financials regularly. Top performers use weekly flash reports and monthly P&L reviews. By the time an annual tax return reveals trouble, the damage is done. If you’re waiting 45-90 days for commercial customers to pay, the cash flow cost of carrying those receivables adds another layer of invisible loss.

[YOUTUBE VIDEO:] How to Make Your HVAC Business More Valuable to Sell for Maximum Profit with John Bartlett

The Real Lesson

The $20 capacitor was never the problem. The $157 in invisible costs behind every service call is the problem.

For business owners, this exercise separates sustainable operations from the 50% running without profit. For technicians considering starting their own HVACR business, this is survival training. Before you put in your notice, before you buy that first van, know what your services actually cost to deliver.

Pick your most common service call. Run the numbers. If the result surprises you, that’s exactly the point.

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