WA Blower Door Testing: Your Partner for Quality Assurance
Third-party blower door testing for Washington State Energy Code. Retrotec equipment and written results for your inspector. Trained staff. Air leakage testing only.
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Our Services
Blower Door Testing
Energy Code Compliance
Energy Code Compliance
Trust our trained staff to conduct thorough Blower Door tests to assess your building's air tightness and identify potential energy leaks.
Energy Code Compliance
Energy Code Compliance
Energy Code Compliance
Ensure your project meets energy code regulations with our approved third-party WA Energy Code testing services.
Air Leakage Detection
Energy Code Compliance
Air Leakage Detection
Air leakage testing with Retrotec equipment, with results written up for your inspector.
WHY CHOOSE WA BLOWER DOOR
Experience
Experience
Experience
Trained staff using Retrotec equipment for Washington State Energy Code testing.
Innovation
Experience
Experience
Written results for your inspector. Air leakage testing only.
Equipment
Experience
Equipment
Our high-quality, industry-approved equipment ensures precise measurements every time.
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Customer Reviews
BLOWER DOOR TESTING IN:
Tacoma, WA
Auburn, WA
Puyallup, WA
Federal Way, WA
Bonney Lake, WA
Kent, WA
Renton, WA
Sumner, WA
Enumclaw, WA
Graham, WA
Covington, WA
Seattle, WA
Bellevue, WA
Lakewood, WA
Redmond, WA
Kirkland, WA
Bremerton, WA
Lacey, WA
Gig Harbor, WA
Port Orchard, WA
Issaquah, WA
Shelton, WA
Spanaway, WA
Mercer Island, WA
Bainbridge Island, WA
Tumwater, WA
Buckley, WA
Des Moines, WA
Milton, WA
Black Diamond, WA
Orting, WA
Fife, WA
Burien, WA
Vashon, WA
Maple Valley, WA
Lake Tapps, WA
North Bend, WA
DuPont, WA
Yelm, WA
Carnation, WA
Ravensdale, WA
Algona, WA
Pacific, WA
Edgewood, WA
Wilkeson, WA
Roy, WA
Manchester, WA
South Prairie, WA
Burton, WA
Indianola, WA
WORKING WITH FOLLOWING DEPARTMENTS:
City of Tacoma - Building and Land Use Services
Pierce County Planning and Public Works Department
City of Lakewood - Community Development Department
City of Federal Way - Community Development Department
City of Auburn - Community Development and Planning Department
City of Puyallup - Planning and Development Services
City of Kent - Community Development Department
City of Renton - Community and Economic Development Department
City of Bonney Lake - Community Development Department
City of Sumner - Community Development Department
City of Gig Harbor - Community Development Department
City of DuPont - Community Development Department
City of Enumclaw - Community Development Department
City of Buckley - Community Development Department
City of Fife - Community Development Department
City of Black Diamond - Community Development Department
City of Maple Valley - Community Development Department
City of Covington - Community Development Department
City of Milton - Community Development Department
City of Edgewood - Community Development Department
City of Pacific - Community Development Department
City of Orting - Community Development Department
City of Des Moines - Community Development Department
City of Yelm - Community Development Department
City of Shelton - Community Development Department
City of Lacey - Community Development Department
City of University Place - Community Development Department
City of Spanaway - Community Development Department
City of Federal Way - Community Development Department
Thurston County Community Planning and Economic Development Department
Kitsap County Department of Community Development
King County Department of Local Services - Permitting Division
City of Bellevue - Development Services Department
City of Redmond - Planning and Community Development Department
City of Kent - Community Development Department
City of Seattle - Department of Construction and Inspections
City of Renton - Community and Economic Development Department
City of Everett - Planning and Community Development Department
City of Bremerton - Community Development Department
City of Kirkland - Planning and Building Department
City of Lacey - Community Development Department
City of Auburn - Community Development and Planning Department
City of Federal Way - Community Development Department
City of Marysville - Community Development Department
City of Sammamish - Community Development Department
City of Burien - Community Development Department
City of Bothell - Community Development Department
City of Shoreline - Planning and Community Development Department
City of Des Moines - Community Development Department
Thurston County Community Planning and Economic Development Department
City of Issaquah - Development Services Department
City of Mukilteo - Community Development Department
City of SeaTac - Community and Economic Development Department
Copyright © 2026 WA Blower Door - All Rights Reserved.
Our family: Dow Engineering, Build Sherpas. Same office in Sumner.
WA Blower Door, a tradename of Dow Engineering PLLC · 16202 64th St E Ste 117, Sumner, WA 98390 · (253) 802-8738
Dow Engineering PLLC