Home / Blower Door Testing
Residential energy testing

Blower door testing without the guesswork.

We check the home for air leaks, explain the result in plain language, and provide the documentation needed for the building department.

Call to ScheduleWhat to Have Ready
What the test tells you

Does the home meet the required airtightness standard?

What we checkThe amount of air leaking through the home.
What you receiveClear results and a certified report after a passing test.
When to scheduleAfter the home can be closed up and prepared for testing.
If it doesn’t passWe explain the result and return to retest after repairs.
Before the appointment

Have the home ready to test.

The exterior shell of the home should be complete enough to hold pressure. Exterior doors and windows should close, and major openings should be finished or temporarily sealed as allowed by the building department.

  • Send the project address and approximate conditioned square footage.
  • Confirm the home has power available for the testing equipment.
  • Make sure windows and exterior doors can close securely.
  • Let us know whether duct leakage testing is also required.

What does ACH50 mean?

ACH50 is the number used to show how airtight the home is during the blower door test. We calculate it from the test reading and the home’s volume, then compare the result with the requirement for the project.

How long does the test take?

Many single-home appointments can be completed in about an hour, although home size, readiness, and troubleshooting can affect the timing.

Ready to schedule?

Get the blower door test handled.

Have the project address, approximate size, and target inspection date ready when you call.

(435) 236-0563
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