Blower Door Testing in Jacksonville, FL

Yes, older Jacksonville homes built before July 2017 were not required to pass a blower door test under Florida's building code. Testing now gives you a clear picture of how much air your home leaks and where.

It measures the total air leakage through your home's envelope, expressed as air changes per hour at 50 pascals (ACH50). This number tells you whether your Jacksonville home is losing conditioned air through gaps and cracks.

The test quantifies total air leakage throughout the envelope and creates pressure conditions that make individual leaks easier to locate. Common problem spots in Jacksonville homes include attic bypasses, plumbing penetrations, and gaps around windows and doors.

Yes, we serve homeowners across St. Johns County, Clay County, Nassau County, Lake City, Bradford County, Union County, and Baker County. Contact us to confirm service for your specific address.

Blower door testing is a focused diagnostic that measures air leakage through your home's envelope and produces a single ACH50 result. A whole-home energy audit is a broader service that covers multiple systems and is available separately.

Jacksonville's heat and humidity are present most of the year, so every gap in your envelope pulls in warm, moist outdoor air continuously. That forces your cooling system to work harder and can raise indoor humidity levels.