Fast, Reliable HVAC Cleaning Across Edmonds
HVAC cleaning in Edmonds typically runs $280–$650 for a complete system service and is usually completed in a single visit by our owner-led crew. We’re based in Seattle and regularly make the short trip north to Edmonds, often same-day when you call before noon. Whether you’re in a 1960s ranch near Edmonds Marsh or a hillside daylight-basement above the ferry terminal, our HVAC Cleaning team knows the duct configurations and moisture challenges these homes present. Call (877) 335-1974 for a free estimate.

Why Landmark Air Duct Cleaning Service Washington Is Edmonds’s Preferred HVAC Cleaning Company
Edmonds homeowners don’t need a generalist HVAC contractor who treats duct cleaning as an add-on. They need a specialist who understands why their 98020 or 98026 ZIP code creates problems that inland homes simply don’t face.
We’ve earned a 4.9-star average across 732 verified reviews by showing up with professional-grade Rotobrush and Nikro equipment and owner Richard Anderson running every job personally. That means direct accountability — no rotating crews, no “the other guy was here last time.” When we pull into your driveway near 5th Ave S or climb into a crawl space off 7th Ave N, Richard is the one operating the equipment and making the call on what your system actually needs.
Our response time to Edmonds is typically under two hours from call to arrival for scheduled appointments, and we carry the full inventory of Honeywell and Aprilaire treatments so we’re not making a second trip for parts. After 11 years of exclusive focus on indoor air quality, we’ve cleaned ductwork in virtually every neighborhood configuration Edmonds offers — from waterfront bungalows to hillside split-levels with duct runs that snake through damp crawl spaces for fifty feet or more.
Our HVAC Cleaning Services in Edmonds
Evaporator Coil Cleaning
The evaporator coil is where Edmonds’s persistent marine humidity does its worst damage. When Puget Sound air keeps relative humidity above 80% for months, condensation on the coil becomes a constant rather than occasional event. We remove the coil assembly, clean with foaming agent and low-pressure rinse, then inspect for fin corrosion that’s accelerated by salt-air exposure in waterfront-adjacent homes. A typical evaporator coil cleaning in Edmonds runs $180–$320.
Coil Treatment
Cleaning without treatment is half a job in this climate. We apply Aprilaire antimicrobial coil treatment after every evaporator cleaning — it’s the standard we adopted after seeing too many Edmonds coils re-colonize within weeks. The treatment creates a residual barrier against mold and bacterial growth without affecting heat transfer. For hillside homes where the coil sits in a basement utility room pulling damp crawl-space air, this step isn’t optional. Coil treatment adds $85–$140 to the cleaning service.
Blower Cleaning
The blower wheel and housing collect the debris that evades your filter — and in Edmonds, that debris is often damp, compressed, and biologically active. We remove the blower assembly, clean the squirrel cage and housing with Rotobrush agitation, then balance the wheel before reinstall. Blower cleaning in Edmonds homes typically costs $150–$260, with the higher end reflecting the heavier accumulation we find in systems that have run continuously through humid summers without prior cleaning.
Condenser Cleaning
Your outdoor condenser faces salt spray, wind-borne debris from Edmonds’s dense evergreen canopy, and the pollen loads from the marsh and hillside gardens. We straighten fins, clean coils with foaming agent, and verify refrigerant pressures post-cleaning. Condenser cleaning runs $120–$200 in the Edmonds market.
Air Handler Cleaning
The air handler cabinet — housing, drain pan, and internal surfaces — is where standing water and debris create the musty odors Edmonds homeowners often describe as “like a basement smell coming from the vents.” We clean and treat the entire cabinet interior, clear drain lines, and verify the condensate pump. Air handler cleaning typically runs $200–$350 depending on unit size and accessibility.

Heat Exchanger Cleaning
For Edmonds’s many gas-fired furnaces in 1970s-era homes, heat exchanger inspection and cleaning is critical for both efficiency and safety. We inspect for cracks or corrosion, clean combustion chambers, and verify flue draft. This service runs $180–$300 and is often bundled with full-system cleaning.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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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 Edmonds
We maintain direct relationships with Honeywell, Aprilaire, Abatement Technologies, and Guardsman — the brands we specify for coil treatments, UV air sanitizers, and filtration upgrades. For Edmonds customers, this means we’re not ordering parts from a warehouse three counties away. We stock Aprilaire treatments and Honeywell media filters on our trucks, so when Richard Anderson arrives at your home near Edmonds Way or up in the Perrinville area, he has what’s needed to complete the job without a return trip. That matters in a market where marine humidity means every day of delay risks further biological growth.
Common HVAC Cleaning Problems We See in Edmonds Homes
- Biological growth inside flex duct liners. We serviced a 1970s daylight-basement home on 7th Ave N in the 98020 hillside zone, where the flex duct interior showed biological growth from steady marine-air condensation. Our crew used Rotobrush agitation with HEPA vacuum to clean the trunk-and-branch system and applied an Aprilaire coil treatment to prevent future buildup.
- Skipping interior liner inspection in flex duct. Marine humidity causes invisible mold growth that standard cleaning misses. We cut inspection ports in flex duct runs to verify liner condition — a step many competitors skip because it adds time, but one that’s essential in Edmonds’s moisture environment.
- Using only portable vacuums in crawl spaces. Hillside homes need truck-mounted units to handle long duct runs and heavy debris. Portable units lack the suction to pull wet, compressed debris through fifty-foot duct runs common in Edmonds hillside construction.
- Not treating evaporator coils after cleaning. Condensation from Puget Sound air re-inoculates coils within weeks. We’ve returned to homes where a “clean” coil was black again in sixty days because no antimicrobial treatment was applied.
Pricing for HVAC Cleaning in Edmonds, WA
| Service | Typical Range in Edmonds |
|---|---|
| Evaporator Coil Cleaning | $180–$320 |
| Coil Treatment (add-on) | $85–$140 |
| Blower Cleaning | $150–$260 |
| Condenser Cleaning | $120–$200 |
| Air Handler Cleaning | $200–$350 |
| Heat Exchanger Cleaning | $180–$300 |
| Complete System HVAC Cleaning (all components) | $280–$650 |
What moves you within these ranges? Accessibility is the biggest factor — crawl-space work in hillside homes takes longer than attic-access systems. The degree of contamination matters too; a system with established biological growth requires more aggressive cleaning and longer HEPA vacuum time. We don’t quote over the phone and then surprise you on arrival. Richard Anderson inspects your system first, shows you what he’s found, and gives you a fixed price before work begins. Estimates are free — call (877) 335-1974.
We Also Serve Cities Near Edmonds
Our service radius covers Mountlake Terrace, Lynnwood, Alderwood Manor, and Brier — though we should note that Edmonds’s unique hillside-and-waterfront moisture profile creates cleaning needs we don’t see at the same frequency in those inland communities. If you’re in one of these neighboring cities and suspect similar issues, we’re happy to assess; if you’re in Edmonds proper, you already know the humidity we’re talking about.
Serving Edmonds, WA — Our Local Coverage Area
We’re based in the Edmonds 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 — HVAC Cleaning in Edmonds
Edmonds’s persistent marine humidity — routinely exceeding 80% relative humidity fall through winter — creates condensation inside ductwork that inland homes simply don’t experience. The marine layer rolling off Puget Sound keeps the city’s waterfront and hillside blocks damp year-round, and many homes route ductwork through crawl spaces where glacial-till soils wick ground moisture upward. This compounding moisture means biological growth establishes faster and cleaning intervals need to be shorter than standard industry recommendations assume. Call (877) 335-1974 and we’ll assess your system’s current condition — estimates are free.
Musty odors when the system first cycles on, visible dust plumes from supply registers, or uneven heating and cooling across rooms are the three most common indicators we hear from Edmonds customers. In this climate, also watch for condensation on ductwork in basements or crawl spaces, and any dark staining around register openings that might indicate liner degradation inside flex duct. If you notice these signs, call (877) 335-1974 — we’ll inspect and give you a straight answer on whether cleaning is needed.
Yes — typically 10–20% improvement in system airflow and measurable reduction in runtime hours. In hillside homes with long duct runs through unconditioned crawl spaces, accumulated debris and biological growth create restriction that forces the blower to work harder and longer. After cleaning, we measure static pressure and temperature differential to document the improvement. For a free efficiency assessment, call (877) 335-1974.
We clean and service all major residential HVAC brands, and we specifically stock treatments and parts from Honeywell, Aprilaire, Abatement Technologies, and Guardsman for the filtration and sanitizing upgrades many Edmonds systems need post-cleaning. Our Rotobrush and Nikro cleaning equipment is compatible with all duct configurations found in local homes. Call (877) 335-1974 to discuss your specific system.
Yes — we apply Aprilaire antimicrobial coil treatment as standard practice after every evaporator cleaning, not as an upsell. In Edmonds’s humidity, untreated coils typically show regrowth within four to eight weeks. The treatment we use creates a residual barrier that extends protection through the full humid season. Coil treatment runs $85–$140 when bundled with cleaning. Call (877) 335-1974 to schedule.
Written by Richard Anderson, Owner and Lead Technician at Landmark Air Duct Cleaning Service Washington, serving Edmonds and the greater Seattle area since 2013.