Blower Door Testing

A blower door test is the most reliable way to measure a building’s airtightness. We mount a calibrated fan in an exterior doorway and adjust the interior pressure, then use precision instruments to find and quantify every place air is escaping — the gaps, cracks, and weak points a walkthrough would never catch.

The result is a clear, numbers-backed picture of where your building loses energy, so sealing becomes targeted work instead of guesswork. For new construction, it’s also how you prove a home meets code for airtightness before the certificate of occupancy is issued.

Either way, you walk away with lower bills, steadier temperatures from room to room, and confidence that your building envelope is actually doing its job.

Key Benefits

• Pinpoints hidden air leaks
• Lower heating & cooling bills
• More consistent room-to-room comfort
• Verifies code compliance for new builds
• Documented, repeatable results