Fast, Reliable Air Duct Cleaning Across Lake Shore
Professional air duct cleaning in Lake Shore typically runs $320–$580 for a full residential system and most jobs are completed in a single visit. We’re usually on-site within 24–48 hours of your call.

Landmark Air Duct Cleaning Service Washington has been serving Lake Shore’s riverside neighborhoods since 2014. Richard Anderson, our Owner and Lead Technician, knows the 98665 ZIP well—from the mid-century ranches along Lake Shore Avenue to the split-levels near the Columbia River shoreline. That local familiarity matters because Lake Shore ductwork fails differently than systems in drier Clark County communities. When crawl-space humidity stays above 70% for months straight, biological growth becomes the primary threat, not ordinary household dust. Our Air Duct Cleaning team arrives with Rotobrush and Nikro equipment sized for exactly these conditions. Call (877) 335-1974 for a free estimate.
Why Landmark Air Duct Cleaning Service Washington Is Lake Shore’s Preferred Air Duct Cleaning Company
We’ve built our reputation one job at a time across Lake Shore’s older neighborhoods. Our 732 verified reviews average 4.9 stars—homeowners specifically mention Richard Anderson’s hands-on approach and his willingness to explain what he’s finding inside their duct systems. That owner-led accountability means the person quoting your job is the same technician running the equipment.
Response time to Lake Shore averages same-day or next-day availability, with emergency calls for visible mold or severe airflow restriction prioritized. We don’t route you through a dispatch center in another state.
Our local knowledge runs deeper than GPS coordinates. We understand how the Columbia River fog basin affects 98665 homes differently than properties just three miles north in Hazel Dell. We’ve cleaned ductwork in the original 1950s developments, the 1960s expansion ranches, and the 1970s split-levels that share the same vulnerability: sheet-metal and flex-duct runs lying in damp crawl spaces, often unsealed since installation.
Our Air Duct Cleaning Services in Lake Shore
Residential Duct Cleaning
Lake Shore’s mid-century housing stock demands a methodical approach. Most 98665 homes were built with galvanized sheet-metal trunk lines and early flex-duct branch runs—materials that corrode and harbor mold when crawl spaces stay wet. Our residential service starts with a video inspection to map contamination, followed by Rotobrush agitation and Nikro negative-air extraction. We clean every branch line, not just the accessible trunk. For Lake Shore’s riverside homes, we typically recommend pairing this with post-cleaning sealing.
Commercial Duct Cleaning
Small commercial properties along the Lake Shore commercial corridor—medical offices, property management firms, retail spaces—face the same humidity challenges as residences, often compounded by HVAC systems that run longer hours. We scale our equipment to the building size and schedule around your operations. Richard Anderson personally oversees commercial jobs to ensure no branch runs are skipped.
Supply Duct Cleaning
Supply ducts in Lake Shore homes push conditioned air through lines that have been absorbing crawl-space moisture for decades. We see restricted airflow in supply branches where mold has narrowed the effective diameter of flex-duct sections. Our supply cleaning restores full airflow and reduces the load on your furnace blower motor.
Return Duct Cleaning
Return ducts pull air back to the furnace—meaning they’re drawing in whatever’s circulating through your home. In Lake Shore’s tight, older construction, return pathways often include wall cavities and under-floor channels that collect debris. We clean the full return path, not just the visible grille.
Full System Cleaning
This is our most-requested Lake Shore service. Full system cleaning covers supply trunks, return trunks, all branch lines, registers, grilles, and the furnace air handler cabinet. For homes with visible biological growth, we add sanitizing with Abatement Technologies products. The complete package addresses what we find in nearly every 98665 crawl space: moisture-driven contamination that isolated cleaning misses.
Video Inspection
Before we quote any Lake Shore job, we run a camera through your duct system. Homeowners see exactly what we see—corroded metal, mold on flex-duct liner, disconnected seams spilling conditioned air into the crawl space. That transparency eliminates guesswork and lets us target the right service level.

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 Lake Shore
We maintain professional-grade equipment from Rotobrush and Nikro—the same systems used by commercial restoration contractors, not rental-grade alternatives. For air quality improvements after cleaning, we install and service Honeywell electronic air cleaners, Aprilaire media filters, and Guardsman UV sanitizing systems. Abatement Technologies products handle post-cleaning sanitizing when mold remediation is indicated. We stock common filter sizes and replacement components for Lake Shore customers, so follow-up maintenance doesn’t involve waiting on shipped parts.
Common Air Duct Cleaning Problems We See in Lake Shore Homes
- Biological growth in flex-duct liners. On a 1960s ranch off Lake Shore Avenue, our crew pulled flex-duct sections from the crawl space and found visible mold colonies on the interior liner—not just dust—because the wet ground beneath the home kept crawl-space humidity above 70% all winter. We recommended a full-system cleaning with Rotobrush agitation, followed by sealing all duct joints with mastic to prevent re-infiltration.
- Homeowners skip post-cleaning duct sealing. Leaky seams that re-admit moist crawl-space air within weeks, re-growing mold. Cleaning without sealing is temporary relief in Lake Shore’s climate.
- DIY or low-bid cleaning only reaches main trunk lines. Branch runs where biological growth concentrates in damp corners get missed entirely. We clean to the register.
- Inadequate negative-air equipment fails to pull mold spores from deep in flex-duct corrugations. Our Nikro systems generate sufficient airflow to extract debris from the full duct interior, not just the accessible surfaces.
Pricing for Air Duct Cleaning in Lake Shore, WA
Here’s what Lake Shore homeowners can expect:
- Residential duct cleaning (standard system, up to 12 vents): $320–$450
- Full system cleaning with furnace air handler: $480–$580
- Video inspection (standalone or add-on): $85–$125
- Dryer vent cleaning (bundled with duct service): $95–$140
- Duct sealing with mastic (post-cleaning, recommended for Lake Shore): $180–$290
- Air sanitizing with Abatement Technologies fogging: $150–$220
Factors that move Lake Shore jobs toward the higher end: homes with more than 15 registers, extensive flex-duct replacement needs, severe mold contamination requiring extended agitation time, and crawl-space accessibility constraints. Homes built in the 1950s–1970s near the river typically need the sealing add-on—we build that into our recommendations when we see the characteristic moisture patterns. Every estimate is free and in-home, not over-the-phone guesswork. Call (877) 335-1974 to schedule.
We Also Serve Cities Near Lake Shore
Our service radius covers the full Clark County riverside corridor. We regularly work in Hazel Dell, where drier conditions mean different contamination patterns; Mount Vista, with its mix of newer and legacy construction; Salmon Creek, where elevation changes affect crawl-space moisture; and Felida, with its own mid-century housing stock. Each community gets the same owner-led service, with recommendations adjusted for local conditions.
Serving Lake Shore, WA — Our Local Coverage Area
We’re based in the Lake Shore 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 Lake Shore
Lake Shore sits on the low-lying north bank of the Columbia River, giving it persistently elevated ambient humidity compared to communities just a few miles north toward Hazel Dell or east toward Camas. This riverside moisture environment means ductwork here accumulates biological growth—mold spores, mildew, and dust mite debris—at a faster rate than the regional norm, making cleaning frequency and post-cleaning sealing more critical than in drier inland Clark County neighborhoods. If you’re seeing musty odors when the furnace runs, that’s typically the first indicator. Call (877) 335-1974 for a video inspection.
Rotobrush mechanical agitation combined with Nikro negative-air extraction is the most effective approach for Lake Shore’s legacy sheet-metal systems. The rotating brush loosens adhered mold and corrosion deposits from the interior walls, while the vacuum maintains negative pressure to prevent debris from escaping into your home. We follow this with mastic sealing at all joints—a step that’s non-negotiable in 98665’s moisture environment. Richard Anderson evaluates each system personally to determine whether the metal has thinned beyond safe cleaning.
Replace flex-duct when the interior liner shows delamination, widespread mold penetration, or when the insulation jacket has absorbed moisture and collapsed. Cleaning annually is excessive and unnecessary—every 3–5 years is typical for Lake Shore with proper sealing. If we’re finding significant regrowth between cleanings, that’s a signal that replacement plus improved crawl-space moisture control is the better investment. We’ll show you the video evidence and talk through the numbers.
Every 3–5 years for most Lake Shore homes, or sooner if you notice reduced airflow, musty odors, or visible mold around registers. Homes without post-cleaning sealing, or with ongoing crawl-space moisture issues, may need more frequent service. The Columbia River bottomland fog season from October through March is when problems accelerate—many of our Lake Shore calls come in February and March after months of sustained humidity. Call (877) 335-1974 to discuss your specific situation.
Yes, we recommend mastic sealing on nearly every Lake Shore job because unsealed duct joints are the primary re-entry point for moist crawl-space air. The sealing is applied after cleaning and before sanitizing, creating a continuous barrier at all seams and connections. This single step extends the effectiveness of your cleaning by years, not months. We include sealing recommendations in every free estimate for 98665 properties.
Ready to improve your indoor air quality? Call Landmark Air Duct Cleaning Service Washington at (877) 335-1974 for your free Lake Shore estimate. Richard Anderson will evaluate your system in person and give you a clear, itemized quote—no pressure, no surprises.
Written by Richard Anderson, Owner and Lead Technician at Landmark Air Duct Cleaning Service Washington, serving Lake Shore and the greater Seattle area since 2014.