Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
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AfterFast, Reliable Air Duct Cleaning Across Seattle
Air duct cleaning in Seattle typically runs $380-$680 for most single-family homes, with condo and townhome systems starting around $320. Our Air Duct Cleaning in Seattle crews coordinate dispatch from our local metro office and carry the equipment needed for everything from Ballard Craftsman bungalows to Capitol Hill condos with shared building systems and restricted access. Call (469) 972-3151 for a free written estimate before any work begins.
Seattle’s persistent marine humidity changes what duct cleaning actually needs to accomplish here. We’re not chasing desert dust. We’re after mold and microbial biofilm that colonizes retrofitted flex duct running through damp crawl spaces, especially in neighborhoods where forced air was added decades after the home was built. Our technicians train specifically for this moisture-driven contamination profile.
Why Kestrel Air Duct Cleaning Is Seattle’s Preferred Air Duct Cleaning Company
We’ve built our reputation in Seattle by solving problems that out-of-market crews miss entirely. A technician from a drier climate sees dust on a register and calls the job done. Our people know to trace the full duct run, camera every foot of flex in a vented crawl space, and treat what they find.
Our Seattle customers mention two things in feedback most often: the written price they hold before we start, and the 365-Day Done Right Promise they can point to if anything falls short. Dale Whitmore set this standard when Kestrel joined the Kingswell family in 2004, and we haven’t waived it since.
Calls to our Seattle line reach a live person, not a queue. We give a real arrival window, show up in it, and leave the job site cleaner than we found it. That’s The Kingswell Way. It governs every visit.
Commercial Air Duct Cleaning in Seattle
Commercial Air Duct Cleaning in Seattle covers office buildings, retail spaces, multi-tenant properties, and any facility where accumulated contaminants circulate through a shared mechanical system. Most commercial jobs in Seattle run $1,200-$3,500 depending on system size, access complexity, and whether the building requires after-hours scheduling to avoid disrupting operations. Seattle’s humidity means commercial systems here face the same microbial pressure as residential ones, often accelerated by larger air handlers that never fully dry between cycles.
Multi-Tenant and Shared Systems
Seattle’s dense commercial core and converted mixed-use buildings frequently house multiple businesses on a single HVAC backbone. Our Nikro negative-pressure units maintain containment during cleaning, preventing cross-contamination between tenant spaces. We document every stage with photo and video evidence for property managers who need records for insurance or lease compliance.
After-Hours and Weekend Scheduling
Downtown Seattle parking restrictions and active business hours make daytime access impractical for many commercial properties. We schedule evenings and weekends without surge pricing, bringing portable power and lighting so the work doesn’t wait on building systems being shut down during peak hours.
Air Duct Cleaning Services in Seattle
Air Duct Cleaning Services in Seattle from Kestrel cover the full residential spectrum: supply duct cleaning, return duct cleaning, full system cleaning, and video inspection of duct interiors. A typical whole-system cleaning for a Seattle single-family home runs $380-$680; condos and townhomes with compact duct runs start around $320. The price is written and agreed before a single vent is touched.
Residential Duct Cleaning
Our Rotobrush rotary brush systems dislodge debris at the duct wall while Nikro negative-air extraction pulls it out of your home entirely. Abatement Technologies HEPA filtration keeps loosened particles from resettling in living spaces during the process. For Seattle’s retrofitted systems, we always inspect crawl-space runs with a camera before recommending mechanical cleaning alone or antimicrobial treatment.
Video Inspection and Documentation
We show you what we found. Our camera inspection records the interior condition of your ductwork before and after cleaning, so you see the difference rather than taking our word for it. In Seattle’s moisture-prone environments, this documentation also establishes a baseline for monitoring whether biological growth returns.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Seattle
Kestrel technicians arrive with professional-grade equipment, not hardware-store shop vacs. Our Rotobrush systems handle mechanical agitation inside duct walls. Nikro negative-pressure units maintain extraction force throughout the job. Abatement Technologies HEPA filtration protects your indoor air while we work. For homeowners who want to maintain results between cleanings, we carry Honeywell, Aprilaire, and Guardsman filtration and indoor-air-quality products, plus we can arrange Carrier service in Seattle for system upgrades. Our Seattle warehouse stocks common filters and accessories, so most replacements ship same-day or arrive with your technician.
Common Air Duct Cleaning Problems We See in Seattle Homes
- Mold and biofilm in retrofitted flex duct. Many Ballard and Fremont Craftsman homes have flex duct added decades after construction, routed through vented crawl spaces that stay damp year-round. The interior develops a coating of microbial growth that mechanical brushing alone won’t eliminate.
- Coniferous pollen accumulation combined with moisture. Seattle’s dense Douglas fir and western red cedar canopy releases pollen that enters duct systems and binds with condensation residue. This creates a sticky, biologically active layer unlike the dry dust found in inland climates.
- Shared dryer vent stacks in multi-family buildings. Capitol Hill and Queen Anne condos often vent through a common stack. One unit’s lint accumulation creates back-pressure that affects neighbors, and improper cleaning can dislodge debris into adjacent units without proper containment.
- Short cycling that prevents duct drying. Seattle’s mild winters mean furnaces run brief, low-intensity cycles rather than sustained operation. Ducts never reach temperatures that would evaporate residual moisture, so biological growth continues even in systems that appear clean at the register.
Pricing for Air Duct Cleaning in Seattle, WA
Most Seattle single-family homes run $380-$680 for a full system cleaning. Condos and townhomes with shorter duct runs typically start around $320. Commercial systems range $1,200-$3,500 depending on square footage and access complexity. These are whole-system prices, not per-vent teaser rates that balloon once the van arrives.
What moves the number: system size, accessibility (crawl space work adds time), whether antimicrobial treatment is needed for active mold, and whether video inspection is requested for documentation. We put the exact price in writing before work starts. No doorstep revisions. No surprises.
Call (469) 972-3151 for a free estimate. We’ll ask about your home’s age, neighborhood, and any musty smells or allergy symptoms you’ve noticed, then give you a firm range you can compare.
We Also Serve Cities Near Seattle
Our Seattle-based crews regularly work in Seattle plus Medina, Bellevue, Mercer Island, and Kirkland. Same written pricing standard, same equipment, same Kingswell Guarantee applies across the service area.
Serving Seattle, WA - Our Local Coverage Area
We’re based in the Seattle area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in Seattle
Seattle’s marine humidity averages above 70% most of the year, creating sustained conditions for microbial biofilm and mold growth inside ductwork. Dust is present, but it’s usually bound in a moist, biologically active layer rather than loose accumulation. Our crews target this moisture-driven contamination with antimicrobial treatment after mechanical cleaning, which would be unnecessary overkill in a drier climate. Call (469) 972-3151 if you’re noticing musty smells when your system runs.
Yes. Flex duct in vented crawl spaces is the highest-risk configuration in Seattle’s housing stock. The combination of ambient moisture, poor sealing at connections, and organic debris creates ideal conditions for mold colonization. We camera-inspect every foot, replace damaged sections when found, and apply antimicrobial treatment rated for HVAC systems after cleaning. In a 1920s Craftsman near 65th St in Ballard, we found retrofitted flex duct snaking through a vented crawl space, its interior coated in a mix of Douglas fir pollen, black mold spots, and condensation residue. Our tech set up negative pressure with HEPA filtration, used agitation tools and camera inspection to confirm coverage, then applied antimicrobial treatment to the supply and return ducts. The homeowner said the musty smell that had lingered in the back bedrooms finally cleared.
We clean ducts in Capitol Hill condos regularly and plan for the constraints. Our equipment breaks down to components that fit through standard doorways and elevators. For buildings with no loading zone, we coordinate with building management for temporary parking clearance. We also use enhanced HEPA containment on shared-building systems to prevent cross-contamination between units. Call (469) 972-3151 to discuss your building’s specific access situation.
Humidity causes lint to clump and adhere to vent walls rather than blowing through freely. Seattle’s mild temperatures also mean dryers run cooler cycles with less drying air velocity, so lint deposits accumulate faster. Annual dryer vent cleaning is more critical here than in drier, hotter climates. Our Air Duct Cleaning team includes dryer vent service using rotary tools and negative-air extraction to clear stubborn buildup.
We follow NADCA (National Air Duct Cleaners Association) assessment and cleaning standards on every job, and we pay particular attention to containment protocols in Seattle’s multi-family buildings where duct systems interconnect. This means sealed access points, negative-pressure maintenance during work, and post-cleaning verification that neighboring units were not affected. Documentation is provided for HOA or building-management records on request.
Written by Dale Whitmore, Owner at Kestrel Air Duct Cleaning, serving Seattle under the Kingswell Guarantee since 2004.