Flat-rate price builder

Build a flat-rate price from what the job really costs you, then see the profit you keep. It also shows why a 15% margin is not a 15% markup.

$
$
$
%

Flat-rate price

$419

You keep $63 on this job. That's a 17.6% markup on cost to earn a 15% margin.

Labor
$136
Overhead
$100
Parts
$120
Total cost
$356

How the math works

Cost is labor (hours on the job times your cost per billable hour), plus overhead (the same hours times your overhead per billable hour), plus parts at your cost.

Price is cost divided by one minus your target net margin. At 15%, a job that costs you $100 sells for $117.65, so $17.65 of every sale is profit. Adding 15% to cost would only give you $115 and a 13% margin.

To get overhead per billable hour, take a year of overhead (office staff, rent, insurance, marketing, software) and divide it by the hours your techs billed that year. The tech-hour calculator gives you the labor number.

Where the defaults come from

  1. ACHR News (June 2026), Field Promax data from 300 HVAC companies: 65% of paid technician time is billable, 5.7 of 8.8 paid hours a day

Defaults are national starting points. Your own numbers will always beat them.

Let’s talk about your shop.

No slide deck. Tell us how your team runs today and we'll show you what we'd build first. If it's a fit, we send you a quote.

ELI waving goodbye