Fast, Reliable Air Duct Cleaning Across Seattle
Professional air duct cleaning in Seattle typically runs $350-$850 for a full residential system, with most jobs completed in a single visit. We’re Bellows Air Duct & Vent Co., and we’ve been serving Seattle homeowners since 2012. Our Air Duct Cleaning team arrives with camera inspection equipment, professional-grade Rotobrush and Abatement Technologies tools, and a straightforward price disclosed before we start. Call (833) 700-5198 for a free estimate.
Seattle’s damp marine climate and older housing stock create conditions we don’t see in drier markets. We know the difference between a purpose-built duct system and the retrofitted runs common in Capitol Hill Craftsman bungalows or Columbia City foursquares. That local knowledge changes how we approach every job.
Why Bellows Air Duct & Vent Co. of Seattle Is Seattle’s Preferred Air Duct Cleaning Company
We’ve served the Puget Sound basin for over 42 years. Homeowners in Ballard, Beacon Hill, and Rainier Valley call us because we show up when we say, we show the price before we lift a tool, and we leave a written 90-Day Done Right Promise on every invoice. No paperwork, no arguing - if it’s not right, we make it right.
Our office answers calls 24 hours a day. Not an app, not a voicemail. A live person. That’s been our practice since 2012.
Every technician is background-checked and uniformed. Every job gets camera inspection before and after. We’ve built our reputation in Seattle on never needing to be called back, and our standing offer - a Free Second Opinion on Any Written Estimate - means you can verify any other contractor’s bid before committing.
Our Air Duct Cleaning Services in Seattle
Residential Duct Cleaning
Most Seattle homes we service were built before central forced-air was standard. Capitol Hill bungalows, Ballard foursquares, and 1960s ramblers in Seward Park all have retrofitted ductwork with more joints, flex-duct splices, and irregular runs than modern systems. Our residential cleaning accounts for this extra labor - we don’t quote a cookie-cutter price and then add charges at the door. A typical full residential duct cleaning in Seattle runs $450-$850 depending on system size and accessibility.
Commercial Duct Cleaning
Seattle’s commercial buildings face the same moisture challenges as homes, compounded by constant occupancy and recirculated air. We clean supply and return systems for offices, retail spaces, and multi-family buildings throughout the city. Our commercial pricing starts around $800 for smaller systems and scales with square footage and duct complexity. Camera documentation is included - useful for property managers who need records for tenants or insurers.
Supply Duct Cleaning
Supply ducts push conditioned air into your living spaces. In Seattle’s pre-2000 homes, these runs often travel through unencapsulated crawl spaces where glacial till soils hold groundwater vapor against metal and flex duct alike. We see rust, mold colonies, and rodent debris in supply lines that standard vacuum-only cleaning misses. Our supply duct service includes visual and camera inspection to locate contamination before we commit to a cleaning approach.
Return Duct Cleaning
Return ducts pull air back to the furnace or heat pump. In Seattle’s oil-to-gas-converted systems, returns are frequently undersized or partially crushed where retrofitted flex meets original framing. These restrictions trap fine particulate matter - including PM2.5 from wildfire smoke seasons that lingers in the Puget Sound basin for days. Return duct cleaning without video inspection risks missing blockages that simply recirculate contamination. We don’t skip this step.
Full System Cleaning
Our most comprehensive service. Full system cleaning covers supply ducts, return ducts, trunk lines, registers, and the air handler cabinet. For Seattle’s legacy housing stock, this is often the only approach that addresses the layered problems: moisture accumulation from decades of heat-only operation, wildfire particulate embedded in duct interiors, and bio-debris from crawl-space intrusion. Most full system cleanings in Seattle run $650-$1,200 and are completed in one visit.
Video Inspection
We camera-inspect every job before and after. In Seattle’s market, this isn’t optional - it’s essential. Retrofitted ductwork hides problems that surface cleaning won’t touch: separated flex-duct joints, rodent nesting in splices, corrosion pinholes that re-contaminate cleaned runs. Our video inspection gives you a visual record and us a precise scope of work. No guesswork, no bait-and-switch pricing.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
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
We clean and service ductwork connected to all major HVAC brands, and we stock parts from Aprilaire, Abatement Technologies, and Rotobrush for Seattle customers who need fast turnaround. Our equipment matches what serious HVAC contractors specify - not rental-store vacuums with brush attachments. For homes with integrated air quality systems, we also service Guardsman and Honeywell components. Parts availability matters when you’re dealing with Seattle’s older housing stock, where a single corroded connection can turn a routine cleaning into a repair job. We come prepared.
Common Air Duct Cleaning Problems We See in Seattle Homes
- Mold colonies in crawl-space flex ducts. Seattle’s relative humidity stays above 75% most of the year, and unencapsulated crawl spaces on glacial soils trap vapor against ductwork. Standard vacuum-only cleaning stirs spores without killing the colony. Biocide pre-treatment is essential.
- PM2.5 accumulation from wildfire smoke events. The Puget Sound basin’s topography traps Eastern Washington and Cascade wildfire smoke for days. Fine particulate embeds in duct interiors and recirculates for months. We locate these deposits with video inspection before cleaning.
- Corroded uninsulated metal ducts. Ground moisture attacks metal ductwork in unencapsulated crawls, creating pinhole leaks. Clean a corroded run without sealing it, and you’ll be recleaning the same system within a year.
- Crushed or undersized returns in converted systems. Original oil-to-gas conversions often used flex duct squeezed through existing framing. These restrictions trap debris and reduce airflow. Video inspection finds them; proper cleaning restores them or documents when replacement makes more sense.
Pricing for Air Duct Cleaning in Seattle, WA
We disclose pricing before we start. Here’s what air duct cleaning costs in Seattle’s market:
| Service | Typical Range |
|---|---|
| Standard residential duct cleaning (single system) | $350-$650 |
| Full system cleaning with video inspection | $650-$1,200 |
| Commercial duct cleaning | $800-$2,500+ |
| Dryer vent cleaning (add-on) | $125-$225 |
| Duct repair/sealing (per linear foot) | $15-$35 |
Factors that affect your price: system accessibility (crawl space vs. basement), contamination severity, whether biocide treatment is needed, and duct repair requirements. Homes in Rainier Valley, Beacon Hill, and Columbia City with retrofitted oil-conversion systems often fall at the higher end due to extra joints, splices, and moisture damage.
We offer a permanent 5% Senior and Veteran discount, plus $50 Off Any Repair Over $250. Call (833) 700-5198 for a free estimate - the number we quote is the number on the invoice.
We Also Serve Cities Near Seattle
Our service area extends throughout the central Puget Sound region. We regularly clean ductwork in Seattle and in White Center, Mercer Island, Bellevue, and Kirkland. Same standards, same upfront pricing, same 90-Day Done Right Promise. If you’re unsure whether we cover your address, call and ask - we answer 24 hours a day.
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 - Air Duct Cleaning in Seattle
No. In Seattle’s market, retrofitted ductwork in unencapsulated crawl spaces on glacial till soils almost always conceals conditions that standard cleaning misses - mold colonies, rodent debris, separated joints, and corrosion. We recently serviced a 1920s Craftsman in Columbia City with a retrofitted oil-to-gas system; our Rotobrush extraction removed three gallons of mold-laden debris and rodent nesting from the flex-duct splices in the crawl space, requiring HEPA containment and biocide fogging before standard cleaning could proceed. Without video inspection, that homeowner would have paid for a surface clean while the real problem recirculated. Call (833) 700-5198 - estimates are free, and we camera-inspect every job.
Fine particulate matter can remain embedded in duct interiors for six to twelve months or longer, especially in Seattle’s heat-only systems that lack the dehumidifying airflow of regular cooling cycles. The Puget Sound basin’s topography traps smoke for days, allowing deep infiltration. We’ve found PM2.5 deposits in Rainier Valley and Beacon Hill homes more than a year after severe smoke seasons. Video inspection locates these reservoirs; HEPA-contained extraction removes them. If your home smelled smoke during recent wildfire events, your ducts likely still hold particulate. Call for a camera inspection.
Yes, and possibly more urgently than homes with regular cooling cycles. Seattle homes that ran heat-only for decades never experienced the drying airflow that air conditioning provides. Moisture accumulates in duct interiors, creating conditions for mold and bio-debris that simply don’t occur in climates with regular cooling seasons. Your ductwork is a structural moisture trap unique to the Pacific Northwest maritime zone. Cleaning every three to five years is prudent; if you smell mustiness or see discoloration around registers, call sooner. Free estimates at (833) 700-5198.
Replacement makes sense when corrosion has created widespread pinholes, flex-duct splices are separated beyond repair, or returns are so undersized that airflow can’t meet modern standards. Cleaning and sealing is usually sufficient when the metal is structurally sound and contamination is surface-level. We make this call with video evidence, not sales pressure. A typical duct repair and sealing job in Seattle runs $800-$2,000; full replacement can exceed $4,000. We’ll show you what the camera sees and recommend the honest option. Free Second Opinion on Any Written Estimate if another contractor disagrees.
We deploy Rotobrush brush-and-vac systems for mechanical agitation, Abatement Technologies HEPA containment for mold and bio-debris jobs, and Aprilaire air quality components for integrated systems. These are the brands serious HVAC contractors specify - not rental-store equipment. For Seattle’s damp-crawl-space conditions, we also pre-stage biocide treatment and HEPA containment before pulling register covers, because we’ve learned what these homes hold. Call (833) 700-5198 for specifics on your system.
Written by Colin Merritt, Owner at Bellows Air Duct & Vent Co., serving Seattle since 2012.