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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AfterLennox Air Duct Cleaning in Seattle, CA | Linden Air Duct Cleaning
Air Duct Cleaning in Seattle for Lennox systems typically costs $450 – $900 for a full single-system cleaning, depending on home size, crawl space access, and whether the evaporator coil needs treatment. We’re independent Lennox service specialists at Linden Air Duct Cleaning, and the one factor that defines Lennox work here more than anything else is Seattle’s damp crawl spaces feeding mold into duct systems that would stay dry and dusty in almost any other city. Call (980) 447-2498 for a written quote before any work begins. We serve every Seattle neighborhood, from Ballard to Rainier Valley.
Why Seattle Residents Choose Us for Lennox Service
We know Lennox equipment the way someone who works on it every week does, not from a brochure. Our crews have opened enough Lennox evaporator coil cabinets in Seattle homes to recognize the same failure patterns repeating block after block: biological growth on cased coils, unsealed Merit Series takeoffs pulling crawl space air, and blower wheels coated with fine gray particulate after wildfire smoke weeks. Marcus Veale, our owner, learned duct systems and airflow diagnostics through the HVAC program at Los Angeles Trade-Technical College and has spent more than a decade working on the homes that make up our neighborhoods. That hands-on background means we tell you what your Lennox system actually needs, and we’ll say plainly when a service won’t solve your problem.
We’re a Seattle duct cleaning company first, independent of any manufacturer. That independence matters because we recommend what’s right for your home, not what a warranty program dictates. For Lennox sales & service questions beyond duct cleaning, we’ll point you in the right direction or handle what falls within our scope. Every technician arrives background-checked, photo-badged, and introduced by name before the visit, per the Threshold Standard we’ve operated under since 2004.
Common Lennox Air Duct Cleaning Problems We Solve in Seattle
The Lennox systems in Seattle don’t fail the way they do in dry climates. Here’s what we find most often when we open up a Seattle home’s ducts:
- Mold on Lennox evaporator coils in cased enclosures. Seattle’s marine air keeps crawl space humidity high year-round. When that damp air gets drawn through poorly sealed Lennox cabinet seams, the condensate pan never fully dries. We’ve pulled coil panels in Rainier Valley homes and found biological growth thriving on coils that would stay spotless in Phoenix or Denver. We clean and treat the coil without removing it from the cabinet in most cases.
- Unsealed Lennox Merit Series flex duct takeoffs pulling crawl space air. Older Merit Series trunk connections used collars that were never sealed properly at install. In Seattle’s vented, unencapsulated crawl spaces, that gap becomes a direct pathway for mold-laden air into your supply stream. We seal those takeoffs and video-inspect the result so you can see the fix.
- Wildfire particulate coating the blower wheel and secondary heat exchanger. Seattle’s late-summer smoke events push homeowners to run HVAC fans continuously for weeks. Lennox Healthy Climate media filters do a decent job as a coarse pre-filter, but fine smoke particulate still coats the blower wheel and heat exchanger. That load doesn’t go away when the smoke does; it rides along through the winter heating season unless cleaned.
- Variable-speed Lennox air handlers overspeeding against undersized retrofit ductwork. Many Seattle homes got forced air added decades after they were built, often with flex runs that were crimped or undersized from day one. Lennox constant-torque motors compensate by spinning faster, which accelerates blower and coil fouling. We check static pressure when we clean so you know if your duct layout is working against your equipment.
- Musty odors that persist despite filter changes. This is the most common call we get from Fremont, Wallingford, and Beacon Hill homeowners. The odor isn’t coming from the filter. It’s coming from the trunk, the coil, or the crawl space air being pulled through unsealed connections. A filter swap won’t touch it. Cleaning and sealing will.
Lennox Service in Seattle: What Local Conditions Mean for Your Equipment
Here’s the thing about Seattle that changes Lennox duct cleaning compared to almost anywhere else: the city’s persistently damp marine climate combined with our tradition of routing ductwork through vented, unencapsulated crawl spaces makes mold and biological growth inside Lennox systems the dominant concern, not dust. A homeowner in Ballard or Rainier Valley is far more likely to have mold-contaminated ducts than a simple debris buildup. Add Seattle’s increasingly frequent late-summer wildfire smoke from Eastern Washington and Cascade Range fires, and you get a compounding effect: residents seal homes and run HVAC systems continuously during smoke weeks, rapidly loading Lennox blower wheels and evaporator coils with fine particulate that lingers through the winter heating season. In a 1920s Craftsman bungalow in Wallingford, our crew found a 1970s Lennox Merit Series retrofit bolted onto a home originally built for gravity heat, with unsealed flex runs drawing air straight from a vented crawl space. The homeowner had complained of musty odors for years; video inspection showed mold on the evaporator coil and biological growth inside the supply trunk. We cleaned and sealed the trunk, treated the Lennox coil, and the odor was gone on the first heating cycle. That’s the Seattle pattern: not dust, but biology and smoke particulate working together in damp ductwork.
Lennox Models & Products We Service in Seattle
We work across the Lennox residential lineup, including the Dave Lennox Signature Collection units like the SL280V and SLP98V, the Elite Series EL296V and EL180, and the Merit Series ML180 and ML196. We also service Lennox Healthy Climate whole-home media cabinets and bypass HEPA units, which are common in Seattle homes where owners have tried to address air quality concerns on their own. When parts are needed, we stock OEM-equivalent Lennox cabinet gaskets, coil cleaner approved for Lennox microchannel and copper-aluminum coils, and quality aftermarket media filters that meet or exceed OEM specs. Most of what we need for a Seattle job is on the truck or available locally, so we’re not waiting on a shipment from a distributor across the country. We recommend repair over replacement when the Lennox air handler, coil, or sheet metal trunk is structurally sound. For Seattle homes with 1970s retrofit ductwork, sealing and cleaning is usually far cheaper than a full system replacement and solves the actual problem.
Lennox Service Pricing in Seattle
Lennox air duct cleaning in Seattle runs $450 – $900 for a full single-system cleaning, depending on square footage, crawl space access difficulty, and whether the evaporator coil needs treatment. Coil cleaning adds $150 – $300 when it’s caked with biological growth or smoke particulate. Duct sealing runs $600 – $1,400 depending on how many takeoffs and trunk connections need attention. Video inspection is $90 – $150 as a standalone service, but we include it free with full-system cleanings because you should see what we found. No per-vent pricing, no bottom-line surprises. We put the price in writing before any work begins, every time, and every repair carries a written 365-Day Done Right Promise. Call (980) 447-2498 for a free estimate – we’ll give you the number over the phone and put it in writing before the van shows up.
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 – Lennox Air Duct Cleaning in Seattle
Yes. Seattle’s marine humidity and vented crawl spaces mean Lennox systems here collect biological growth and smoke particulate faster than in dry climates. Most Seattle homes need cleaning every 2 – 3 years, and homes with unencapsulated crawl spaces or residents with allergies may need annual service. Call (980) 447-2498 and we’ll tell you what your system actually needs, not what a schedule says.
In most cases, yes. We use coil cleaning methods designed for cased Lennox enclosures, treating the coil in place with products rated for Lennox microchannel and copper-aluminum construction. Removal adds labor cost and risk of refrigerant line damage, so we avoid it unless the coil is heavily contaminated. We’ll assess yours and give you a straight answer.
Because the duct connections were never sealed properly, most likely. West Seattle’s mid-century homes commonly have sheet metal or flex runs through damp, vented crawl spaces, and any gap at a takeoff collar or trunk seam lets that crawl space air into your supply stream - that’s why our Dryer Vent Cleaning in Seattle also addresses these vented crawl space issues. We seal the connections and video-inspect the work so you can see the difference. Call (980) 447-2498 for a quote.
Wildfire smoke particulate coats the Lennox blower wheel, secondary heat exchanger, and evaporator coil as fine gray powder. Healthy Climate media filters catch some of it, but what passes through settles and stays until mechanically removed. Once Seattle’s smoke season ends, the particulate remains in the system through the heating season unless cleaned with negative-pressure extraction.
We use OEM-equivalent Lennox cabinet gaskets and coil cleaners rated for Lennox coil construction, plus aftermarket media filters that meet or exceed OEM specs. We’re independent, which means we choose parts based on what performs best, not what a manufacturer mandates. Every repair carries a written guarantee, and if a covered repair fails, we return free of charge.
Service Areas Near Seattle
We serve Seattle and the surrounding communities across the metro area. Our service coverage includes neighborhoods throughout Seattle proper plus nearby cities. If you’re outside Seattle, we also maintain service coverage in Lennox service in Nashville-Davidson and Lennox service in Las Vegas. For Seattle-area scheduling, see our Seattle service area page or call (980) 447-2498.
Book Your Lennox Service in Seattle Today
Clean ducts don’t fix everything, but dirty ones can quietly make a lot of things worse. If your Seattle home has a Lennox system that’s pulling crawl space air or hasn’t been cleaned since before the last smoke season, call (980) 447-2498 for a free estimate. A live person answers every time, and we’ll send your technician’s name and photo before the visit.
Written by Marcus Veale, Owner at Linden Air Duct Cleaning, serving Seattle since 2004.