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testing

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Illustration of a doorway fan test setup next to airflow arrows and a small checklist icon, in a clean teal and orange style with no text.

Blower Door Test Cost: 2026 Prices and What the Number Tells You

A standalone blower door test runs $150 to $400 in 2026. It's often free through a utility, or bundled into a $300 to $700 audit. Here's what it measures and when paying makes sense.