Is it required?

R402.4.1.2 requires that this test be done on every new home (including additions) that are over 500 square feet, as well as all multi-family homes. As of July 1, 2016 the standard is less than 5 ACH at 50 pascals (this stands for air exchanges per hour). Every project does need to meet this standard by the state of Washington.

How quickly can I schedule a test?

We have multiple technicians available to service your home. We can often provide same day or next day service so you don't have to delay your final building inspection. Call today to get on our schedule!

What is Washington R402.4.1.2?

Every building and dwelling unit must be tested and verified with an air leakage rate of 5 air changes per hour (or less). In places where it is required by the code official, all testing must be conducted by an approved third party. A final written report is then signed by those conducting the test and provided to the code official.

When is the best time during construction to schedule a blower door test?

It's almost never too early to schedule a test. Code requires that the test be scheduled any time after creation of all penetrations of the building thermal envelope. We recommend having a diagnostic test done after drywall is installed, taped, and mudded. This allows time to address issues before getting too far into the construction process. Few houses will actually "pass" at this phase, as there are many things (such as sub floors and electrical penetrations) that will be covered later in the construction process.

If you believe you don't need a diagnostic test, the test you need for code compliance can be performed right before you call in for your final building inspection.

Do I need an energy audit or a blower door test? What’s the difference?

A blower door test is mandatory for code compliance in new construction and additions over 500 sqft; it’s the last step before your final inspection. If you don’t pass your blower door test, you don’t pass your inspection.

An energy audit, designed for home owners, includes a blower door test, a thermal camera, and a smoke stick. An energy audit will find all the air leaks and drafts in your home so you can save money on your energy bill and make your home truly energy efficient. Worried about smoke from the wildfires getting into your home? We can help.

Whether you’re a builder or a home owner, we are here to make your blower door test as smooth as possible. Our technicians are trained to not just determine a pass/fail grade, but also diagnose where the problem areas are and offer solutions to remedy them. We will work with you every step of the way, from initial testing to final repairs, so you can pass your final inspection or simply save money on energy.

Will an energy audit really help me save money on my energy bill?

Yes! After our technicians assess your home, they will give you a report with your estimated energy savings should you proceed with the recommended repairs to seal the air leaks in your home.

What if my house doesn’t pass the blower door test?

No need to worry — if your blower door test fails, our technicians won’t just slap a fail sticker on your house and leave. Our technicians take the time to diagnose the problem areas and work with you to repair the issues. Needing repairs is nothing to be intimidated by; we are able to do any repairs necessary, including adding weather gaskets to your electrical foundation, applying foam air barriers under baseboards, caulking missed penetrations, sealing any holes from your attic or crawl space, and ensuring the weather stripping on your doors and windows is functioning properly and in good working condition and not damaged.