Measure the leaks.
Plan the next step.
Drafts can start in places you cannot see. A blower door test measures how much air leaks through the home’s exterior shell and helps guide a closer search for unwanted openings.
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Why It Matters
Hidden gaps around the attic, basement, and other connections can let air move through the house. Measuring leakage gives you a clearer baseline before deciding where air sealing may help.
How We Approach It
We review whether the home is suitable for testing, prepare it for the test, and fit a calibrated fan into an exterior doorway. We record airflow and pressure, investigate accessible leakage paths, and explain the findings in plain language. Ventilation needs and relevant safety conditions inform the next steps.
Useful measurements.
Better-informed decisions.
A measured baseline
Understand the home’s air leakage under controlled test conditions.
More focused repairs
Help identify accessible gaps that deserve attention.
Before-and-after insight
When included in the project, compare leakage before and after air sealing.
A fuller picture
Consider leakage findings alongside insulation, ventilation, and home conditions.
Illustrative imagery. Photos are not presented as completed PRIME projects.
Turn drafts into a plan.
Tell us where you notice drafts or uneven rooms. We can help determine whether blower door testing is an appropriate next step.
Testing scope and recommendations depend on actual home conditions and applicable project and program requirements. A leakage test does not by itself determine which upgrades the home needs.