
About Capitol Duct Cleaning
Western Washington’s Local Air Quality Team Since 1995
Capitol Duct Cleaning provides residential and commercial indoor air quality solutions throughout the South Sound and Puget Sound regions. Established in 1995, our veteran-owned company brings over 30 years of proven field experience directly to your property. We operate on foundational standards of military precision, upfront pricing, and thorough HVAC restoration.

Core Operating Standards

Veteran-Owned and Operated
Our leadership applies military standards of accountability, discipline, and attention to detail to every project. Choosing Capitol Duct Cleaning directly supports local military veterans and keeps resources invested in Washington communities. Our technicians treat your home or facility with consistent care and professional respect.
Upfront, Transparent Pricing
We provide clear, firm pricing before any work starts. The duct cleaning market often relies on deceptive teaser rates and unexpected fees when we arrive. Our company rejects hidden charges, aggressive upsell tactics, and pricing gimmicks entirely. The price quoted is the price delivered.


Documented Visual Proof
Because ventilation systems operate out of sight, property owners deserve tangible confirmation of clean results. Our technicians use high-resolution diagnostic cameras to inspect duct interiors and document contamination levels before cleaning. Upon project completion, we show you the side-by-side visual proof of your cleared trunk lines and return vents.
100% Satisfaction Guarantee
Our technicians stand behind every job. Our crews stay on-site until airflow is fully restored and the system meets our rigorous standards. If any detail falls short of expectations, our team resolves it immediately.


Certified NADCA Standards
Capitol Duct Cleaning maintains continuous active membership in the National Air Duct Cleaners Association (NADCA). Our technicians follow strict source-removal protocols, using commercial negative-air extraction and mechanical agitation tools to remove settled pollutants from supply registers, trunk lines, and furnace connections.

Professional Service Across Western Washington
From single-family homes in Tacoma and Olympia to commercial office complexes in Seattle and Bellevue, our field crews deliver dependable duct cleaning, air-system sealing, and crawl space insulation.
Direct Phone: 360-352-4693
Office Hours: Monday – Friday, 9:00 AM – 5:00 PM (weekend and after-hours calls are answered)













































