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 SeaTac
Most SeaTac homeowners pay between $380 and $620 for a complete residential air duct cleaning, with commercial systems running higher based on square footage and access. Our crew dispatches from the Seattle office and typically books SeaTac appointments within three to five business days. Call (469) 972-3151 for a written estimate before any work begins.
We know SeaTac’s housing stock because we work in it weekly. The ranch homes off S 188th St, the split-levels near 24th Ave S, the apartment complexes along International Boulevard - our technicians have cleaned ducts in all of them. That matters because a duct system installed in 1965 behaves differently than one from 1995, and SeaTac has far more of the former than most of King County. Our Air Duct Cleaning team brings equipment built for older metal ductwork, not just the flexible ducting found in newer construction.
Why Kestrel Air Duct Cleaning Is SeaTac’s Preferred Air Duct Cleaning Company
We’ve built our reputation in SeaTac on showing up in the window we promised and leaving the price where we left it. The Kingswell Guarantee, which governs every job we’ve done since founding in 2004, requires four things in writing: the price before work starts, a defined arrival window, a clean job site, and a free return visit if the work fails within the guarantee period. No exceptions.
Our technicians are background-checked, uniformed, and trained on Rotobrush rotary brush systems, Nikro negative-pressure units, and Abatement Technologies HEPA filtration - not box-store shop vacs. We explain what each tool does before we start, because homeowners in SeaTac have told us they want to understand what they’re paying for, not just watch strangers work in their basement.
Calls are answered by a live person, 24 hours a day. Not a voicemail queue. Not an automated system. A real conversation, whether you’re calling at 7 AM before work or 9 PM after noticing a musty smell from your registers.
Residential Air Duct Cleaning in SeaTac
Residential Air Duct Cleaning in SeaTac means source removal from supply ducts, return ducts, and the air handler cabinet - not a surface wipe of visible vents. A typical SeaTac home runs $380-$620 for a full system clean, with larger homes or those requiring camera inspection and sealing repair toward the upper end. We use negative-air extraction: a Nikro unit creates suction at the air handler while Rotobrush rotary brushes physically dislodge debris from duct walls. Abatement Technologies HEPA filtration captures loosened particles so they don’t resettle in your living space.
Supply and Return Duct Cleaning
Supply ducts push conditioned air into rooms; return ducts pull it back. Both collect debris, but returns near floors and in walls often hold the heavier load. In SeaTac’s older ranch homes, we frequently find return ducts that were never properly sealed at the boot, drawing attic or crawl-space air along with household dust. We clean both systems and seal accessible leaks with mastic - a water-based sealant that flexes with temperature changes, unlike tape that dries and peels.
Video Inspection and System Assessment
Before we recommend any work, we feed a camera through your ductwork. SeaTac’s original 1950s-1970s sheet-metal runs often hide disconnected joints or crushed branches behind drywall. Cleaning without finding these problems first just blows debris into your home. The camera inspection is included in our written estimate, and we’ll show you what we find before you decide to proceed.
Commercial Air Duct Cleaning in SeaTac
Commercial Air Duct Cleaning in SeaTac serves the apartment buildings, airport-adjacent hotels, and small retail spaces that keep this city functioning. A typical commercial system in SeaTac runs $800-$2,400 depending on square footage, number of air handlers, and access complexity. We work with property managers to schedule around occupancy, and we document before-and-after conditions with photos for your maintenance records.
Multi-Family and Hospitality HVAC Systems
SeaTac has an unusually high concentration of multi-family buildings and hotels whose high-turnover occupancy means HVAC maintenance is routinely deferred. We clean common return plenums, individual unit ductwork, and laundry exhaust systems. For buildings near the airport, we pay particular attention to filter schedules - aviation particulates load filters faster than standard suburban dust, and clogged filters strain blowers and reduce airflow to upper floors.
Full System Cleaning and Maintenance Documentation
Our commercial jobs include written documentation of duct conditions, cleaning methods used, and any repairs recommended. Property managers in SeaTac use this for insurance records, tenant communications, and planning capital improvements. We also flag code issues we encounter, such as fire-damper access blocked by renovation work, so you can address them before an inspector does.
Trusted Brands We Service in SeaTac
We clean ductwork connected to every major HVAC brand, and we stock Honeywell, Aprilaire, and Guardsman filtration products for SeaTac homeowners who want to maintain cleaner air between service visits. Honeywell electronic air cleaners and Aprilaire media filters trap smaller particles than standard fiberglass pads - a meaningful upgrade in airport-adjacent neighborhoods where ultrafine particulate load is elevated. We size and install these during your cleaning visit if you choose, with no separate trip charge. Guardsman UV-C systems are available for properties concerned with microbial growth in humid duct runs.
Common Air Duct Cleaning Problems We See in SeaTac Homes
- Aviation particulate accumulation in flight-corridor homes. Tighter post-Part 150 envelopes near 24th Ave S and S 188th St trap jet-exhaust ultrafine particles and kerosene byproducts in ductwork. A standard surface cleaning leaves this load behind; only source removal with HEPA filtration at the air handler clears it properly.
- Disconnected or crushed duct runs in original 1960s systems. SeaTac’s ranch and split-level stock often has sheet-metal joints that separated decades ago or branch runs flattened during previous remodeling. Cleaning without camera inspection risks blowing debris into living spaces through these openings.
- October-April humidity promoting mold and dust-mite debris. SeaTac’s marine climate delivers persistent overcast and elevated relative humidity for seven months. Uninsulated duct runs in crawl spaces and attics condense moisture, supporting biological growth that recolonizes ducts unless blower motors and registers are pulled and cleaned as part of the job.
- Filters overloaded by airport-adjacent particulate load. Homes near flight paths change filters more frequently than inland properties, but many SeaTac homeowners don’t realize this. A clogged filter bypasses air around the media, loading the ductwork downstream with unfiltered debris.
Pricing for Air Duct Cleaning in SeaTac, WA
A typical residential duct cleaning in SeaTac runs $380-$620 for a complete system. Smaller ranches with single air handlers and accessible crawl spaces fall toward the lower end. Larger homes, systems with multiple zones, or properties requiring camera inspection and sealing repair trend higher. Commercial systems start around $800 and scale with square footage and access complexity.
| Service | Typical Range in SeaTac |
|---|---|
| Residential full system cleaning | $380 - $620 |
| Residential with camera inspection and sealing | $520 - $780 |
| Commercial per air handler | $800 - $1,400 |
| Commercial full building (multi-handler) | $1,200 - $2,400 |
What affects your specific price: number of supply and return vents, accessibility of the air handler, condition of existing ductwork, and whether sealing repairs are needed. We give you one flat price per system, agreed in writing before any vent is touched. No per-vent pricing. No door-step revisions. Call (469) 972-3151 for a free written estimate.
We Also Serve Cities Near SeaTac
Our crews work throughout the region, including Air Duct Cleaning in SeaTac and surrounding communities. We regularly serve Seattle, Spokane, Tacoma, and Vancouver with the same Kingswell Guarantee: written price, defined arrival window, clean job site, and documented return policy if anything fails. Scheduling is coordinated from our Seattle office, with local technicians dispatched to each market.
Serving SeaTac, WA - Our Local Coverage Area
We’re based in the SeaTac 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 SeaTac
SeaTac sits directly beneath Sea-Tac International Airport’s approach and departure corridors, and HVAC systems here draw in measurably higher loads of jet-exhaust ultrafine particles and kerosene combustion byproducts than neighboring cities. Many homes in FAA Part 150 noise-retrofit zones received tighter building envelopes without corresponding ventilation rebalancing, so those aviation particulates recirculate longer and accumulate in ductwork rather than diluting out. We recommend cleaning every three to four years for flight-corridor properties, versus five to seven for inland homes. Call (469) 972-3151 to schedule a camera inspection and see your system’s current condition.
Original sheet-metal ductwork can almost always be cleaned, and it’s often more durable than the flexible ducting used in newer homes. In SeaTac’s 1950s-1970s housing stock, we more commonly find disconnected joints or crushed branch runs than metal failure. Our camera inspection identifies these issues before cleaning begins. If we find separations, we reconnect and seal them with mastic as part of the job. Full replacement is only necessary when ducts are rusted through or improperly sized for the heating load - rare in the ranch homes we service. We’ll show you what the camera sees and give you a written price for repair versus replacement before any work proceeds.
The FAA’s Part 150 Noise Compatibility Program funded window upgrades, added insulation, and other envelope tightening for homes in SeaTac’s flight corridors. These improvements reduced noise but also reduced natural air exchange. Without ventilation rebalancing, the same air - now containing aviation particulates, cooking byproducts, and household dust - recirculates through your ducts more times per hour. We’ve found that post-retrofit homes near 24th Ave S and S 188th St often have duct surfaces among the dirtiest per square foot in the region. Cleaning restores airflow capacity, and sealing leaks prevents drawing unfiltered air from attics or crawl spaces.
We follow NADCA (National Air Duct Cleaners Association) source-removal standards: mechanical agitation to dislodge debris, negative-air extraction to remove it, and containment to prevent redistribution into your living space. In practical terms, this means we don’t just vacuum vent covers. We run Rotobrush rotary brushes through every accessible duct, maintain continuous suction with Nikro negative-pressure equipment, and filter exhaust air through Abatement Technologies HEPA media. For SeaTac’s aviation-particulate load, this matters - surface cleaning leaves ultrafine particles behind, while source removal physically extracts them. We document our methods in writing on every job.
Yes. We clean multi-family and hospitality HVAC systems throughout SeaTac, including common return plenums, individual unit ductwork, and exhaust systems. Deferred maintenance in high-turnover properties typically means heavier debris loads and more frequent filter failures, but the equipment and methods scale directly. We work with property managers to minimize disruption, provide before-and-after documentation for maintenance records, and identify code issues like blocked fire dampers while we’re inside the system. Commercial estimates are free; call (469) 972-3151 to discuss your building’s specific layout and scheduling needs.
Written by Dale Whitmore, Owner at Kestrel Air Duct Cleaning, serving SeaTac since 2004 under the Kingswell Guarantee.