HVAC Markup vs Margin
A clear HVAC contractor guide to the difference between markup and margin, with formulas and practical examples.
Quick Answer
Use this page as a practical starting point, then adapt it to your company's costs, workflow, market and requirements.
Markup and margin are different percentages. Markup measures profit against cost; margin measures profit against selling price.
Markup
Markup = profit ÷ cost × 100. If cost is $800 and selling price is $1,000, profit is $200 and markup is 25%.
Margin
Margin = profit ÷ selling price × 100. The same $800 cost and $1,000 sale produces a 20% margin.
Why It Matters
A target expressed as margin requires a different selling price than the same number expressed as markup.
Practical Next Steps
Keep your information current, document assumptions, compare estimates with actual results, and update the process when costs or workflows change.
Why Markup and Margin Get Confused
Markup measures the increase from cost to selling price, while margin measures gross profit as a percentage of selling price. They use different denominators, so the same percentage does not mean the same result.
When communicating prices internally, label calculations clearly as markup or margin. This simple distinction can prevent inconsistent price-book formulas and quoting errors.
Use Both Numbers Correctly
Markup is useful when building a selling price from a known cost. Margin is useful when evaluating what portion of revenue remains after the included direct costs. Keep the denominator clear whenever you discuss either percentage.
Example for an HVAC Job
If a job has $4,000 of direct cost and is sold for $6,000, the $2,000 difference is gross profit. The markup is measured against the $4,000 cost, while the margin is measured against the $6,000 selling price. They answer different questions.