Blower Door Testing Across Pierce County
Unincorporated Pierce County: Frederickson, Spanaway, Graham, South Hill, Parkland, Midland
A lot of Pierce County's new homes aren't in a city at all. Frederickson, Spanaway, Graham, South Hill, Parkland, Midland, and the rural areas toward Eatonville, Orting, and the Key Peninsula are all unincorporated Pierce County, so building permits and inspections run through Pierce County Planning & Public Works. WA Blower Door tests homes across the county from our office in Sumner, with third-party results your builder and county inspector can use to close out the energy code air leakage requirement.
From subdivisions to rural custom homes
Production subdivisions
Frederickson, Spanaway, and South Hill have seen a lot of new tract construction. For builders with multiple homes, we can coordinate testing around your schedule. Call to set up a plan.
Rural custom homes and owner-builders
On larger lots in Graham and the foothills, owner-builders often handle the air sealing themselves. We are happy to explain the results in plain language so you know exactly where to focus.
ADUs, shops, and manufactured-to-site
Manufactured-to-site homes, ADUs, and shops with living space: if the permit calls for an air leakage test, call us with the details and we will confirm the setup.
Before we arrive
Get the house ready for testing
See our printable checklist on the Residential Testing page: windows and doors latching, hatches finished, fans installed, combustion equipment vented, and traps filled.
WA Blower Door is based in Sumner. Learn more about the Washington energy code with Build Sherpas, or return to our home page.
Pierce County FAQ
Questions from Pierce County builders
How do I know if I am in unincorporated Pierce County? Check who issued your building permit. If it is Pierce County rather than a city, you are unincorporated.
Do you travel to Gig Harbor and the Key Peninsula? Yes. Travel details for your address are shown when you book online, or call us to confirm.
Do you test in cities like Puyallup and Tacoma too? Yes. See our Puyallup and Tacoma pages.