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 Lake Stevens
Air duct cleaning in Lake Stevens typically runs $350 – $650 for a full residential system and $800 – $1,800 for commercial jobs, with most homes completed in a single visit. Our crews serve Lake Stevens from our Seattle office, dispatching background-checked, uniformed technicians who arrive inside the quoted window with written pricing already in hand. Call us at (361) 326-5060 for a free estimate, or read on to understand what Lake Stevens’s damp climate and two distinct housing stocks actually mean for your ductwork.
We’ve worked Lake Stevens homes long enough to know the difference between a 1998 two-story off Soper Hill Road and a 1968 rancher on North Lakeshore Drive. The problems inside those walls are not the same, and the fix isn’t either. That’s why our Air Duct Cleaning team starts every job with a camera inspection, not a sales pitch.
Why Hollis Air Duct Cleaning Is Lake Stevens’s Preferred Air Duct Cleaning Company
We’ve been part of the Garrison Partners family since 2004, and our Lake Stevens customers know the difference between a crew that shows up squared away and one that doesn’t. Our technicians are background-checked, uniformed, and expected to perform under The Garrison Code: arrive inside the window, price in writing before touching anything, complete the job by the book, and leave the site clean.
Every repair and cleaning we perform in Lake Stevens carries our 365-Day Done Right Promise in writing. If the work fails within a year, we return and make it right at no charge, including a free second visit. No negotiation, no runaround.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday morning to schedule.
Our crews know Lake Stevens’s two housing stocks cold: the damp 1990s – 2010s subdivisions with moisture-driven biological contamination, and the older downtown and lakefront pockets where rodent nests and rust scale choke original galvanized runs. That local knowledge means we diagnose faster and fix it right the first time.
Air Duct Repair in Lake Stevens
Air Duct Repair in Lake Stevens is often the real solution hiding behind what homeowners think is a furnace problem. In the newer east-side subdivisions, we routinely find builder-grade flex duct crushed or disconnected at the plenum, causing uneven heating that gets misdiagnosed as a bad blower or failing heat exchanger. In the older downtown and lakefront ranchers, rusted galvanized trunk lines, rodent-chewed flex connections, and nests packed into runs that open onto wooded ravines are what actually restrict airflow. Repair costs in Lake Stevens typically range from $280 – $550 for plenum resealing and flex replacement, and $450 – $900 for trunk line patching or partial galvanized replacement with proper access door installation.
Plenum and Flex Reconnection
When we find flex duct pinched or fallen off at the plenum, we reseat and seal it with mastic and mechanical fasteners, not tape that will fail in Lake Stevens’s humid air. This restores balanced airflow without altering the original system design, which matters for homes still under builder warranty.
Galvanized Trunk Restoration
On older homes with rusted galvanized lines, we cut in access doors, remove debris and rust scale under negative-air containment, then patch or sleeve damaged sections. We finish by sealing all connections so the system doesn’t pull attic or crawl space air into your supply.
Ductwork Cleaning in Lake Stevens
Ductwork Cleaning in Lake Stevens is not a dust-removal job here. Our marine climate keeps duct interiors damp year-round, which means mold, mildew, and dust-mite colonies are the primary contamination we find, not just household dust. A proper cleaning here requires antimicrobial treatment and humidity-control recommendations, or the biological load returns within a season. For a typical Lake Stevens home, ductwork cleaning runs $350 – $650 for a full system, with larger two-story homes or homes with multiple zones toward the higher end. Commercial systems start around $800 and scale with square footage and HVAC complexity.
Biological Remediation Protocol
We use rotary brush agitation with a Rotobrush system under Nikro negative-air containment, paired with HEPA filtration, to dislodge and extract mold and organic debris without cross-contaminating your home. After mechanical cleaning, we apply an EPA-registered antimicrobial to treated surfaces to slow regrowth in Lake Stevens’s persistently humid conditions.
Camera Verification
We run a video inspection before and after every cleaning. You see what we saw, and you see what we removed. No guesswork, no trust-me claims. The footage belongs to you.
Trusted Brands We Service in Lake Stevens
Our equipment roster includes Rotobrush rotary brush systems and Nikro negative-air machines for mechanical cleaning, plus filtration and treatment products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. These are the same tools commercial crews use in hospitals and schools, not hardware-store vacuums with a longer hose. For Lake Stevens customers, this means we stock the parts and consumables to complete most jobs without ordering delays, and our technicians are trained on each system’s proper application. If your home has a Honeywell electronic air cleaner or Aprilaire whole-house humidifier integrated with your ductwork, we know how to clean around it without damaging sensitive components.
Common Air Duct Cleaning Problems We See in Lake Stevens Homes
- Moisture-driven mold and dust-mite colonies in 1990s – 2010s subdivisions. Lake Stevens’s high year-round humidity keeps duct interiors damp enough that biological growth outpaces dust accumulation. Crews who treat this like dry-side dust removal skip the antimicrobial step, and the problem returns before the next heating season.
- Rodent nests and rust scale in older downtown and lakefront ranchers. Original galvanized and flex runs from the 1960s – 70s open onto wooded ravines, providing entry points for rodents and trapping moisture against metal that was never meant to last 50 years.
- Crushed builder-grade flex duct in newer east-side homes. Subdivision construction often uses thin flex duct pinched at bends or pulled tight at the plenum. Homeowners feel uneven room temperatures and call a furnace company when the real problem is airflow restriction upstream.
- Warranty-voiding alterations by uninformed technicians. Many Lake Stevens homes built since the 1990s still carry builder warranty coverage. Cutting into or reconfiguring original ductwork without understanding the warranty terms can leave homeowners uncovered for future HVAC failures.
Pricing for Air Duct Cleaning in Lake Stevens, WA
Here’s what air duct cleaning actually costs in Lake Stevens, with real numbers you can use before you call.
| Service | Typical Range |
|---|---|
| Residential full-system duct cleaning | $350 – $650 |
| Residential with antimicrobial treatment | $450 – $750 |
| Commercial duct cleaning (per system) | $800 – $1,800 |
| Air duct repair (plenum/flex resealing) | $280 – $550 |
| Air duct repair (galvanized trunk work) | $450 – $900 |
| Video inspection (standalone) | $125 – $175 |
What moves you within these ranges: system size and zone count, accessibility of duct runs, severity of contamination, and whether we find damage requiring repair before cleaning can be effective. We give you one flat price per system, agreed in writing before any work starts. No per-vent pricing, no add-ons at the door. Call (361) 326-5060 for an exact quote on your Lake Stevens home, estimates are free.
We Also Serve Cities Near Lake Stevens
Our Air Duct Cleaning in Lake Stevens crews also handle jobs in Marysville, Everett, Granite Falls, and Snohomish. Scheduling and dispatch are coordinated from our Seattle office, with local technicians serving each community.
Serving Lake Stevens, WA - Our Local Coverage Area
We’re based in the Lake Stevens 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 Lake Stevens
Lake Stevens’s marine climate keeps indoor humidity elevated year-round, which sustains mold, mildew, and dust-mite colonies inside ductwork that would simply dry out and remain dormant in arid climates. A home here typically needs cleaning every 3 – 5 years, not the 5 – 7 common east of the Cascades, and should include antimicrobial treatment, not just dust removal. Call (361) 326-5060 and we’ll assess your system’s current biological load.
No, if it’s done correctly. Our technicians know which Lake Stevens subdivisions still carry builder coverage and how to access and clean ductwork without altering original connections or cutting into builder-installed components. We document our methods and can provide that record for your warranty file. Call (361) 326-5060 to confirm your subdivision’s specific requirements.
Rodent nests packed into flex connections, rust flakes and scale breaking off galvanized trunk lines, and disconnected runs that have been dumping conditioned air into crawl spaces for years. On a 1970s rancher off North Lakeshore Drive, our tech pulled rodent nests and rust flakes out of the original galvanized trunk by cutting in an access door and running agitation tools under negative pressure with HEPA filtration, then sealed the crushed and disconnected runs feeding the plenum. Camera inspection before we start shows you exactly what’s in there.
Yes. In Lake Stevens, biological contamination from mold, mildew, and dust mites is the primary problem, not dust accumulation. A cleaning here that only removes dust without addressing moisture and biological growth is incomplete and will need repeating within a season. Our process includes antimicrobial treatment and humidity-control guidance specific to your home’s conditions. Call (361) 326-5060 for an inspection that measures biological load, not just visible debris.
We use a Nikro negative-air machine to maintain continuous suction at the main trunk while Rotobrush rotary tools agitate debris loose inside each branch. This creates a contained airflow path: debris is dislodged, immediately captured, and filtered through HEPA before any air returns to your living space. No dust storm, no residue on your furniture, no smell of disturbance afterward. We verify with post-cleaning camera footage. Call (361) 326-5060 to schedule.
Ready to see what’s inside your Lake Stevens ductwork? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free estimate. We’ll show up on time, give you a written price before any work starts, and stand behind the result for a full year under our 365-Day Done Right Promise.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Lake Stevens since 2004 as part of the Garrison Partners family.