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 $350-$650 for a whole-home residential system and $800-$2,400 for commercial jobs, with most homes completed in a single scheduled visit. Morton’s Air Duct Cleaning dispatches crews from our Seattle office to homes from Ballard to Beacon Hill, and we answer the phone at (323) 918-4345 with a live person any time you call. We’ve worked in this market since 2005, and our Air Duct Cleaning team knows the local housing stock: the 1920s Craftsman bungalows with pier-and-beam crawl spaces, the mid-century ramblers on hillside lots, and the newer townhomes going up in South Lake Union. Seattle’s damp marine climate changes what “clean ducts” actually means here, and that’s why local experience matters.
Why Morton’s Air Duct Cleaning Is Seattle’s Preferred Air Duct Cleaning Company
We’ve built our reputation in Seattle by treating homes the way we’d want our own treated. Our technicians arrive in uniform with shoe covers and drop cloths already on, and they know to keep voices low during afternoon nap hours in family neighborhoods like Wallingford and Fremont. Every visit starts with a written price before any equipment comes inside, and ends with a photo of the clean-up so you can see the work was done.
The Cedarwell Care Promise governs every job: background-checked techs, pet-safe product choices where available, and quiet professional-grade equipment from Rotobrush and Nikro, not rental-store gear. Our 365-Day Done Right Promise means if something isn’t right, we make it right. No expiration date, no transfer to a call center. Paul Adeyemi and our Seattle team stand behind it personally.
Calls are answered by a live person 24/7, not a voicemail tree. Scheduling is coordinated from our Seattle office, and we carry common fittings and replacement materials so most jobs finish in one visit without waiting on parts.
Residential Air Duct Cleaning in Seattle
Residential Air Duct Cleaning in Seattle means source-removal agitation and HEPA-negative-pressure extraction of the entire supply and return network, not a vacuum wand waved at register faces. A typical whole-home clean in Seattle runs $350-$650 for a single-system house, with larger homes or those with multiple zones ranging toward $850. We recommend it when registers blow visible dust, when musty odors persist after changing filters, or when energy bills climb without explanation, which in Seattle often signals collapsed flexible duct in a crawl space.
What We Protect Inside Your Home
Before we touch a vent, we lay drop cloths at entry points and work paths, cover nearby furniture, and note pet areas and sleeping children’s rooms. Our Rotobrush and Nikro equipment runs quieter than standard shop vacs, and we schedule around your household rhythm when possible. Shoe covers stay on until we exit.
Video Inspection and Documentation
We feed a camera through the system before and after cleaning so you see what was there and what was removed. In Seattle’s humidity-compromised ductwork, this documentation often reveals failed joint tape or separated collars that explain weak airflow at distant registers.
Commercial Air Duct Cleaning in Seattle
Commercial Air Duct Cleaning in Seattle serves offices, retail spaces, restaurants, and multi-unit buildings where occupancy codes and insurance requirements demand documented HVAC hygiene. Typical commercial projects in Seattle range from $800 for small retail suites to $2,400+ for multi-story buildings with complex duct networks, with pricing set per system after a walkthrough. We work around business hours, coordinate with building managers, and provide before-and-after photo documentation for compliance files.
Minimizing Disruption to Operations
We schedule commercial jobs for early mornings, evenings, or weekends so your Seattle business doesn’t lose trading hours. Our crews work in marked zones, contain debris with negative-pressure HEPA systems, and leave a photo record of the clean-up before signing off.
Code-Aware Documentation
Seattle commercial properties often need cleaning documentation for insurance renewals or lease compliance. We provide written scope summaries, photo evidence, and equipment logs from our Abatement Technologies and Guardsman systems upon request.
Trusted Brands We Service in Seattle
Morton’s technicians are trained on equipment from Rotobrush, Nikro, Honeywell, Aprilaire, Abatement Technologies, and Guardsman. We don’t rent. We own our agitation brushes, HEPA extractors, and video inspection gear, which means consistent performance and no downtime waiting for a rental return. For Seattle customers, this translates to faster scheduling and the ability to source replacement collars, tape, and insulation wraps from stock rather than ordering. Whether your system uses standard galvanized trunk lines or the flexible duct common in Capitol Hill crawl spaces, we carry the fittings to repair what we find.
Common Air Duct Cleaning Problems We See in Seattle Homes
- Crawl-space flexible duct collapsed or separated at collars. On hillside neighborhoods like Queen Anne and Capitol Hill, chronic moisture weakens connection tape while uneven framing settles, pulling collars apart. The system blows conditioned air under the subfloor for years while owners assume high heating bills are normal for Seattle.
- Mold colonizing moisture-laden debris inside duct runs. Seattle’s 75-85% relative humidity through fall, winter, and spring never desiccates duct interiors the way Phoenix or Denver’s dry air does. Spores establish in dust layers and proliferate year-round.
- Heat-pump retrofits onto never-cleaned gas-furnace ductwork. Washington’s electrification incentives have thousands of Seattle homeowners installing new air handlers that push cooled and dehumidified air through 40-year-old ducts whose joint tape failed decades ago from crawl-space humidity.
- Extended stagnation in unconditioned duct systems. Most Seattle homes were built without central air conditioning, so ducts sit idle five or more months annually. Contaminants bond to duct walls during this stagnation window, making first-season heat-pump startup smell like a basement.
Pricing for Air Duct Cleaning in Seattle, WA
Whole-home residential air duct cleaning in Seattle runs $350-$650 for a typical single-system house with 8-15 registers. Larger homes, multiple zones, or systems requiring access through tight crawl spaces may reach $850. Commercial duct cleaning starts around $800 for small retail or office suites and scales to $2,400+ for multi-story buildings with complex trunk-and-branch networks.
What moves the price: register count, system accessibility (crawl space vs. basement), whether video inspection reveals separations needing repair, and contamination severity. We do not quote per-vent pricing. We quote one flat price per system, agreed in writing before work starts. Every estimate is free. Call (323) 918-4345 to schedule a walkthrough.
We Also Serve Cities Near Seattle
Our Seattle crews regularly travel to Medina, Bellevue, Mercer Island, and Kirkland for both residential and commercial duct cleaning. Scheduling and dispatch are coordinated from our Seattle office, and we carry the same equipment and materials across the metro 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 climate maintains 75-85% relative humidity through most of the year, and the city’s pier-and-beam crawl spaces receive almost no solar drying. Duct interiors never desiccate, so mold spores that land on dust layers germinate and colonize instead of dying off. A genuine source-removal clean extracts this colonized debris; a fogging “sanitiser” only masks the odor while leaving the growth medium in place. Call (323) 918-4345 for an inspection if you smell mustiness from registers.
No. If the debris is properly removed with agitation and negative-pressure HEPA extraction, the biological load goes with it. Fogging agents coat remaining duct surfaces with a chemical residue that does not penetrate established mold colonies and can introduce volatile compounds your family then breathes. We do not upsell sanitiser fogs at Morton’s. The 365-Day Done Right Promise covers the actual clean, not a fragrance cover-up. Call (323) 918-4345 for a quote on source-removal cleaning only.
Yes. Hillside homes in Queen Anne, Capitol Hill, and Beacon Hill often have flexible duct runs that have partially collapsed or separated at collars due to moisture-degraded tape and framing settlement. We inspect with a camera first, document any separations, and can seal or replace collars during the same visit. The cleaning itself requires portable HEPA equipment that fits tight crawl spaces. Call (323) 918-4345 to discuss access at your specific property.
Yes, strongly recommended. Most Seattle heat-pump retrofits bolt new air handlers onto duct systems originally sized and sealed for gas furnaces that ran with zero cooling function. Those decades-old runs have never been cleaned, and their joint tape has often failed from crawl-space humidity. Pushing cooled, dehumidified air through contaminated ductwork distributes whatever has been growing in there. We clean first, then you start with a verified-clean system. Call (323) 918-4345 to schedule before your first cooling season.
Source-removal cleaning uses mechanical agitation brushes and compressed-air whips to dislodge debris from duct walls, coupled with a negative-pressure HEPA vacuum that captures dislodged material at the point of disturbance. We seal registers to create suction, run a camera for before-and-after documentation, and protect your floors and furnishings throughout. It is not a vacuum wand at the register face, and it is not a fogging treatment. A typical Seattle home takes 3-5 hours. Call (323) 918-4345 for a free estimate with written pricing upfront.
Ready to see what your ducts actually look like inside? Morton’s Air Duct Cleaning offers free estimates with written pricing before any work starts, backed by our 365-Day Done Right Promise and the Cedarwell Care Promise on every single job. A live person answers the phone 24/7. Call (323) 918-4345 today to schedule your Seattle air duct cleaning.
Written by Paul Adeyemi, Owner at Morton’s Air Duct Cleaning, serving Seattle since 2005.