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.
Fast, Reliable Air Duct Cleaning Across Eastmont
Air duct cleaning in Eastmont typically runs $350 – $650 for a whole-home system and $180 – $320 for apartment or partial cleaning, with most jobs scheduled within a few business days. We’re Hollis Air Duct Cleaning, and our Air Duct Cleaning team serves Eastmont from our Seattle dispatch office, with crews that know the difference between a 1980s mill house near the Snohomish River and a 1990s flex-duct apartment off 112th St SE. Eastmont’s damp marine climate isn’t a footnote here, it’s the reason your ducts need attention: wet winters, high indoor humidity, and builder-grade flex duct that was never built to last 25 years. Call (361) 326-5060 for a free estimate, or keep reading to understand what you’re actually paying for.
Why Hollis Air Duct Cleaning Is Eastmont’s Preferred Air Duct Cleaning Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our Eastmont customers come back because we put the price in writing before touching anything. The 365-Day Done Right Promise covers every job: 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.
Our technicians are background-checked and uniformed, and they arrive inside the quoted window. Phones are answered by a live person 24 hours a day, 7 days a week. That matters in Eastmont, where the damp season stretches from October through May and you can’t wait until Monday when your bedroom smells like a wet basement every time the heat kicks on.
We don’t compete on the lowest teaser price. We compete on discipline: show up when we said, price it before we touch it, do it by the book, leave the site clean. That’s The Garrison Standard, and it’s how every Hollis location operates, independently owned and operated.
HVAC Duct Cleaning in Eastmont
HVAC Duct Cleaning in Eastmont means source removal of dust, debris, and biological growth from your entire forced-air system, not just wiping down the registers you can see. We use Rotobrush rotary brush systems and Nikro negative-air machines to agitate and extract contaminants, with HEPA filtration so nothing recirculates into your living space. In Eastmont, this matters more than in drier parts of Snohomish County because the Puget Sound lowlands’ damp winters keep indoor humidity high enough that mold colonies establish in duct runs within a single season if there’s standing moisture or poor ventilation.
Most Eastmont homeowners need HVAC duct cleaning when they notice musty odors, uneven heating, or visible dust plumes from registers. A typical whole-home HVAC duct cleaning in Eastmont runs $350 – $650 depending on system size, accessibility, and whether we find collapsed flex duct that needs repair.
Camera Inspection Before We Touch Anything
We run a video inspection first. In Eastmont’s 1990s – 2000s housing stock, we regularly find sagging flex duct, disconnected joints, or sections crushed behind the air handler. The camera shows you what we see. No guesswork, no upsell based on fear.
Negative-Air Source Removal
Our Nikro negative-air machines create suction at the furnace while rotary brushes knock debris loose. This is source removal, not surface wiping. The debris leaves your house through a sealed hose, filtered through HEPA before it hits the machine. That’s the difference between actual cleaning and stirring up dust.
Vent Cleaning in Eastmont
Vent Cleaning in Eastmont targets the supply and return registers, grilles, and boot connections where visible dust accumulates and where moisture first condenses on cold metal in humid conditions. We remove each register, clean the boot and first few feet of duct, and treat any biological growth with EPA-registered products before reassembly. For a typical Eastmont home, vent cleaning as a standalone service runs $180 – $320; combined with full system cleaning, it’s priced as part of the whole-home package.
Standalone vent cleaning makes sense when your main ducts were cleaned recently but bedroom registers are still dusty, or when you’re preparing a rental unit near Silver Lake for turnover. It’s not a substitute for full HVAC duct cleaning if the problem is behind the air handler.
Register Removal and Deep Boot Cleaning
We take registers off the wall or floor, clean the boot where dust and skin cells collect, and inspect for mold staining. In Eastmont’s older mill houses near the river, we’ve found boots packed solid with decades of accumulation from before the HVAC retrofit.
Return Side Attention
Most outfits clean supply vents and ignore returns. We don’t. Return ducts pull air from your living space back to the furnace, and in Eastmont’s humid climate, they’re often the dampest part of the system. Cleaning returns without cleaning supplies is half a job.
Trusted Brands We Service in Eastmont
We stock filtration and sealing products from Honeywell, Aprilaire, and Abatement Technologies, and we maintain Nikro negative-air machines and Rotobrush rotary systems for the agitation and extraction work itself. For Eastmont homeowners, this means replacement filters, upgraded media cabinets, and duct sealing mastic are available on the day of service, not ordered from a warehouse two counties away. If your system needs a MERV upgrade after cleaning to handle the pollen and mold spore load of the Puget Sound lowlands, we can install Honeywell or Aprilaire media filters rated for your furnace’s airflow capacity. No waiting, no return trip.
Common Air Duct Cleaning Problems We See in Eastmont Homes
- Crushed flex duct behind the air handler. In Eastmont’s 1990s Silver Lake-area apartments, the flex duct is often compressed flat where it bends behind the furnace. The blower motor strains, airflow drops to bedrooms, and the crushed section stays damp all winter. We find this with camera inspection, then remove the damaged material and reconnect with proper support.
- Mold in sagging low-point runs. Flex duct installed without proper slope creates bellies where condensation pools. Eastmont’s marine climate produces more condensation than inland Snohomish County, so these low points grow mold faster. We cut out the sagging section and reinstall with correct pitch.
- Undersized bath fans venting into attic space. Code in many Eastmont tract homes allowed bath fans to terminate in the attic, not outside. That humidity loads the attic air, which infiltrates return ducts and raises the dew point throughout the system. We note this during inspection and recommend proper venting.
- Disconnected joints in crawl space runs. The original flex duct in 1980s – 2000s Eastmont homes was secured with plastic zip ties that degrade. We find supply runs blowing heated air into crawl spaces instead of bedrooms, which also pressurizes the crawl and draws mold spores upward through floor gaps.
Pricing for Air Duct Cleaning in Eastmont, WA
Whole-home HVAC duct cleaning in Eastmont runs $350 – $650 for a typical single-family system, with most jobs falling in the $400 – $500 range. Apartment or partial-system cleaning, common in the Silver Lake-area complexes, runs $180 – $320. Commercial duct cleaning for Eastmont’s retail and office spaces is quoted per system after inspection. Dryer vent cleaning, often scheduled alongside duct work, adds $120 – $180.
What moves the price: system size (more ducts, more time), accessibility (crawl space height, attic hatch location), and whether we find collapsed or mold-damaged flex that needs repair or replacement. We put the full price in writing before any work starts. One flat price per system. No per-vent pricing, no add-ons at the door. Estimates are free. Call (361) 326-5060.
We Also Serve Cities Near Eastmont
Our crews cover the full Puget Sound region, including Eastmont, Seattle, Spokane, Tacoma, and Vancouver. Scheduling is coordinated from our Seattle office, with local technicians dispatched to your area. Same discipline, same written price, same 365-Day Done Right Promise, whether you’re in a downtown Seattle high-rise or a 1990s Eastmont apartment.
Serving Eastmont, WA - Our Local Coverage Area
We’re based in the Eastmont 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 Eastmont
Eastmont sits in the damp Puget Sound lowlands where winter indoor humidity regularly stays above 60% without mechanical dehumidification, and the 1990s – 2000s builder-grade flex duct in most homes was never designed to resist biological growth. Drier inland neighborhoods in Snohomish County see the same housing stock but far less condensation in duct runs. In Eastmont, once flex duct sags or crushes, that trapped moisture becomes a mold nursery within one heating season. Call (361) 326-5060 for an inspection if you smell musty air from your registers.
No. Fogging mist chemicals into ductwork without removing the moldy material leaves the source intact, and in Eastmont’s humid climate, the moisture from the fogging itself can worsen the problem. We perform source removal with agitation tools under negative pressure and HEPA filtration, physically extracting mold and debris. Chemical treatment, when used, comes after removal, not instead of it. Call (361) 326-5060 for a camera inspection to see what’s actually in your ducts.
Signs include weak airflow to bedrooms, musty odors when the system runs, and a blower motor that seems to run constantly without reaching temperature. We verify with video camera inspection. In the Silver Lake-area apartments off 112th St SE, we find crushed flex behind the air handler on roughly half the units we inspect. The only way to know is to look. Call (361) 326-5060 to schedule a camera inspection.
Most Eastmont homes do well with MERV 11 after a thorough cleaning, which captures mold spores, pollen, and fine dust without restricting airflow in older systems. MERV 13 and above can strain blower motors in 1990s furnaces not designed for the pressure drop. We check your system’s static pressure tolerance and install Honeywell or Aprilaire media filters matched to your equipment. Call (361) 326-5060 and we’ll measure your system before recommending a filter grade.
Every 3 – 5 years for most Eastmont homes, sooner if you have pets, allergies, or visible mold. The damp marine climate accelerates biological growth compared to drier regions, so we recommend inspection every two years for homes with original 1990s flex duct. After cleaning, proper filtration and humidity control (target 50% indoor relative humidity) extend the interval. Call (361) 326-5060 for a free estimate and schedule recommendation based on your specific system.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Eastmont since 2004.




Before
After
Before
After
Before
After