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
Air duct cleaning in SeaTac typically runs $350-$650 for a full residential system, with most jobs completed in a single visit and a written price agreed before any work begins. Our crews serve SeaTac from our Seattle office, so we’re familiar with the airport noise contour zones, the mid-century housing stock, and the specific duct problems this city faces. Call (323) 918-4345 for a free estimate.
SeaTac’s homes carry a history you can feel in the walls. The residential core was built largely in the 1950s through 1970s to house airport and service-industry workers, and many of those original galvanized sheet-metal duct systems are still in place, sometimes spliced with newer flex-duct additions from decades-old retrofits. We’ve cleaned ducts in the McMicken Heights neighborhood, along International Boulevard corridor properties, and in the garden-style apartments near Angle Lake. We know what we’re walking into, and we know how to leave your home better than we found it.
Why Morton’s Air Duct Cleaning Is SeaTac’s Preferred Air Duct Cleaning Company
We’ve been part of the Cedarwell family since 2005, and our reputation in SeaTac has grown through word of mouth from families who’ve been burned by bait-and-switch pricing before. Our Air Duct Cleaning in SeaTac customers consistently mention the same things in their feedback: the crew showed up in uniform, put on shoe covers before stepping inside, and explained exactly what they’d find before they opened a single vent.
Response time to SeaTac is typically same-week scheduling, with dispatch coordinated from our Seattle office. We don’t promise impossible arrival windows; we promise clear communication about when we’ll be there and what we’ll cost.
What sets us apart for SeaTac specifically is our familiarity with the Port of Seattle’s Residential Sound Insulation Program retrofits. Thousands of local homes received new windows and supplemental HVAC components through this program, and we’ve developed specific protocols for inspecting and cleaning the hybrid duct systems those retrofits created. Our technicians carry agitation tools and camera inspection equipment from Rotobrush and Nikro designed to handle the mismatch between aging galvanized metal and newer flex-duct runs.
Every visit includes the Cedarwell Care Promise: background-checked technicians, drop cloths on your floors, quiet tool operation during nap hours, and a photo of the clean-up before we leave. Plus our 365-Day Done Right Promise - if it’s not right, we make it right.
Air Duct Inspection in SeaTac
Air Duct Inspection in SeaTac is where we always start, because this city’s duct systems hide problems that surface cleaning alone won’t reveal. The inspection typically takes 45-60 minutes and costs $150-$250, during which we feed a camera through your supply and return lines to document buildup, damage, and - critically for SeaTac - unsealed junctions where Port-era retrofits meet original ductwork. We mark every finding on a written report with photos, then review it with you before quoting any cleaning or sealing work.
What We Look For in Older Systems
Our camera inspection focuses on the transition points between original galvanized trunk lines and any flex-duct additions. In SeaTac’s mid-century homes, these splices often lack mechanical support and proper sealing, creating debris traps that standard visual inspection misses. We also check for crushed or sagging flex runs in crawlspaces, where SeaTac’s damp conditions accelerate deterioration.
Jet-Particulate Assessment
Homes inside the airport noise contour receive special attention for ultrafine particulate accumulation. Our inspection includes register and plenum photography to document the distinctive dark, metallic dust that jet-exhaust deposits leave behind. This isn’t ordinary household dust, and it requires specific agitation and extraction methods to remove completely.
Residential Air Duct Cleaning in SeaTac
Residential Air Duct Cleaning in SeaTac addresses the full supply and return system with NADCA-standard source removal, using negative pressure containment and HEPA filtration to protect your home during the process. A typical SeaTac home runs $350-$650 depending on system size, accessibility, and whether sealing work is needed at Port-era retrofit junctions. The job usually takes 3-5 hours, and we protect floors, furniture, and pet areas before starting.
Full System Source Removal
Our Air Duct Cleaning crew uses Rotobrush agitation tools and Nikro negative-pressure collection systems to dislodge and extract debris without releasing it into your living space. For SeaTac’s hybrid metal-and-flex systems, we adjust brush stiffness and vacuum strength to avoid damaging aging galvanized or unsupported flex runs. Every vent cover is removed, hand-cleaned, and reinstalled.
Sealing the Gaps That Matter
Cleaning without sealing is half a job in many SeaTac homes. When our inspection finds unsealed plenum splices or disconnected ERV intakes, we quote that repair upfront - typically $200-$400 additional - and complete it during the same visit. The smoke-pencil verification we perform after sealing proves the fix, and we show you the before-and-after photos.
Trusted Brands We Service in SeaTac
We clean and maintain duct systems connected to equipment from Honeywell, Aprilaire, and Abatement Technologies, among others. Our trucks stock common replacement filters, register boots, and sealing materials for these brands, which means most SeaTac jobs don’t wait on parts orders. For homes with Honeywell electronic air cleaners or Aprilaire whole-house humidifiers integrated into duct systems, we know how to work around or service those components without disrupting their calibration. When we encounter less common configurations, our relationship with Abatement Technologies’ regional distributor gets us technical specs fast. We’re not guessing at what your system needs; we’re working with equipment we recognize and understand.
Common Air Duct Cleaning Problems We See in SeaTac Homes
- Unsealed Port retrofit junctions. The Residential Sound Insulation Program added ERV intakes and new supply drops to thousands of SeaTac homes, but many were never properly sealed to the original plenum. The resulting gap collects jet-particulate-laden dust for years, then feeds it straight back into your supply air every time the blower cycles.
- Humid crawlspace infiltration through returns. SeaTac’s marine climate keeps relative humidity high year-round, and poorly sealed return ducts in slab-edge or pier-foundation homes pull that damp air directly into the system. Without addressing the source, mold and mildew return within a season even after thorough cleaning.
- Crushed and sagging flex-duct sections. The mismatch between rigid original metal and newer unsupported flex creates low spots where debris accumulates out of reach of standard vacuum tools. Camera inspection and mechanical agitation are the only way to find and clean these hidden reservoirs.
- Accumulated ultrafine particulates from jet exhaust. No neighboring city sees this concentration. The distinctive dark, metallic dust around SeaTac supply registers isn’t ordinary household debris - it’s a signature contaminant that requires specific extraction protocols and often indicates unsealed system junctions upstream.
Pricing for Air Duct Cleaning in SeaTac, WA
Here’s what honest pricing looks like for SeaTac’s market. A standard residential air duct cleaning for a single-system home runs $350-$550. Larger homes or those with separate upstairs/downstairs zones typically fall in the $500-$650 range. If our inspection finds unsealed Port-era retrofit junctions that need repair, sealing work adds $200-$400 depending on accessibility and materials. Video inspection, when needed separately, is $150-$250. Dryer vent cleaning can be bundled for $120-$180 additional.
We don’t quote per-vent. We don’t bait with a low teaser and add charges in your driveway. One flat price per system, written and agreed before any work starts. That’s how we avoid the surprise invoices that have made so many SeaTac families wary of this industry. Every estimate is free, and we’ll explain exactly what we’re proposing and why.
Factors that affect your specific price: system size and zone count, accessibility of duct runs (crawlspace vs. basement), condition and type of existing duct material, whether sealing or repair work is needed at retrofit junctions, and any add-on services like dryer vent cleaning or sanitizing treatment.
We Also Serve Cities Near SeaTac
Our crews work throughout the Puget Sound region, including SeaTac neighbors like Seattle, Spokane, Tacoma, and Vancouver. Scheduling and dispatch are coordinated from our Seattle office, with local crews assigned to minimize travel time and fuel costs that would otherwise inflate your price.
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
The smell comes from ultrafine particulates and combustion byproducts from jet traffic at Seattle-Tacoma International Airport, which accumulate in ductwork at concentrations unique to SeaTac’s noise contour zones. These particulates enter through unsealed return pathways and retrofit junctions, then redistribute through your supply air every time the blower runs. A thorough inspection with camera verification, source removal with HEPA containment, and sealing of any unsealed plenum splices typically eliminates the odor. Call (323) 918-4345 and we’ll pinpoint the entry point.
Expect a hybrid duct system with original 1960s-70s galvanized sheet metal spliced to newer flex-duct additions, often with ERV intakes or supplemental supply drops that were never properly sealed to the main plenum. Our inspection protocol specifically targets these transition points, which are the most common source of persistent contamination in retrofitted SeaTac homes. We document every splice with photos, quote any needed sealing upfront, and verify our work with smoke-pencil testing. The retrofit improved your windows and noise levels; we make sure the ductwork matches that quality.
Most SeaTac homes built in the 1950s-1970s need both, in sequence. Cleaning removes accumulated debris but won’t stop new contamination if unsealed junctions remain. Sealing without cleaning first traps existing debris inside. Our inspection determines which your system needs, and we quote each phase separately so you decide what to prioritize. Many SeaTac customers choose to complete both in one visit for $550-$850 total, depending on system size and repair complexity.
SeaTac’s persistent high humidity and 38 inches of annual precipitation keep duct moisture levels elevated, which accelerates microbial growth and particulate adhesion inside ductwork. Homes with poorly sealed returns drawing crawlspace air - common in the area’s older pier-foundation and slab-edge construction - typically need cleaning every 3-4 years rather than the 5-7 year interval that drier climates allow. If you notice musty odors when the system first kicks on, or visible moisture around registers, that’s your signal to schedule an inspection.
Yes, and we do both regularly in SeaTac. Garden-style apartments along International Boulevard and near Angle Lake often have centralized systems or individual through-wall units with accessible duct runs; we coordinate with property management for access and scheduling. Original galvanized ducts in mid-century homes require gentler agitation tools and careful camera inspection to avoid damaging corroded sections, but they’re absolutely cleanable with the right approach. We’ve developed specific protocols for both building types through years of work in SeaTac’s housing stock. Call (323) 918-4345 to discuss your specific building.
Written by Paul Adeyemi, Owner at Morton’s Air Duct Cleaning, serving SeaTac since 2005.