The short answer
Markup and margin sound the same but they are not, and the confusion costs HVAC contractors real money. Markup is how much you add on top of your cost. Margin is how much of the final price you keep as profit. A 50 percent markup is not a 50 percent margin. It is a 33 percent margin. If you price your parts thinking a markup gives you the same margin number, you are leaving money on every job.
Say a part costs you 100 dollars.
| Markup applied | Selling price | Actual margin |
|---|---|---|
| 25% | $125 | 20% |
| 50% | $150 | ~33% |
| 100% | $200 | 50% |
Notice the gap. To actually keep 50 percent of the selling price as margin, you need a 100 percent markup, not a 50 percent one. Contractors who set a 50 percent markup expecting half the price as profit are getting a third instead, and they wonder why the math never works out.
Materials run through nearly every job you do. A pricing error baked into your markup is not a one-time mistake. It repeats on every part, every invoice, all year. Get it slightly wrong and the leak is small per job and large by December. This is one of those quiet bookkeeping details that separates a contractor who keeps their profit from one who watches it slip away a few dollars at a time.
Start from the margin you need, not the markup that sounds good. Decide what gross margin keeps your business healthy, then convert it to the markup that delivers it. A simple way to think about it: to hit a target margin, divide your cost by one minus the margin. For a 40 percent margin on a 100 dollar part, that is 100 divided by 0.6, which is about 167 dollars. Work from the margin backward and your pricing finally matches your intent.
| = 20% |
| = 33% |
| = 50% |
What is the difference between markup and margin?
Markup is the amount added on top of your cost. Margin is the portion of the final selling price you keep as profit. The same dollar amount produces a higher markup percentage than margin percentage.
Is a 50 percent markup the same as a 50 percent margin?
No. A 50 percent markup produces about a 33 percent margin. To get a 50 percent margin you need a 100 percent markup.
How should HVAC contractors price parts?
Decide the gross margin you need first, then set the markup that achieves it. Pricing from margin backward keeps your profit where you intend it.
Jeremy Brewer is the founder of 911 Bookkeepers LLC in Baton Rouge, Louisiana. He came up through the HVAC trade and works as a licensed paramedic in EMS. He is a Xero Certified Advisor. 911 Bookkeepers is built for the trades.
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