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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Before
AfterAir Duct Cleaning Company in Snoqualmie, WA
Snoqualmie’s air duct cleaning market is driven by a specific local paradox: this is one of the wettest inhabited climates in the lower 48, yet most local homes rely on forced-air heat, meaning ducts here become condensation traps that breed mold and mildew far more aggressively than in dry-side cities. Because the city sits on the wet west slope of the Cascades, duct cleaning in Snoqualmie is less about dust removal and more about moisture-driven microbial contamination in the ductwork itself. We dispatch crews from our Seattle office to serve Snoqualmie homes with Rotobrush rotary brush systems and Nikro negative-air machines, and every job starts with a written price that doesn’t move at the door. Call (361) 326-5060 for a free estimate.
Why Snoqualmie Homes Are Different
Snoqualmie’s housing stock splits into three distinct eras, and each one changes what we find in the ducts. Early-1900s mill-town homes near downtown Snoqualmie Falls often have original or retrofitted ductwork that was never sized for modern forced-air systems, creating pressure imbalances that pull attic and crawl-space moisture into the living space. The 1990s-2000s Ridge and Meadowbrook subdivisions built during the Weyerhaeuser mill redevelopment have tighter envelopes, but that same tightness traps humidity. Newer Snoqualmie Ridge construction from the 2010s onward is the most prone to rapid mold staining in ductwork, technicians working the Ridge regularly find contamination within just a few years because the building envelope has nowhere for moisture to escape except into the HVAC system.
With roughly 60 inches of rain annually and a persistent damp marine climate, Snoqualmie’s ducts are exposed to high ambient humidity that condenses inside metal ductwork during the heating season. The wet climate also means outdoor allergens and mold spores are drawn into return-air intakes year-round, giving Snoqualmie homes a heavier biological load in their ducts than dry-side Washington cities. This isn’t a dust problem you can ignore. It’s a moisture problem that gets worse every heating season.
Our Main Snoqualmie Services
Most Snoqualmie homeowners call us for one of three jobs, each with its own page and pricing.
Air Duct Cleaning in Snoqualmie
We clean the full supply and return duct network with a Rotobrush rotary brush system that loosens microbial growth and debris, paired with a Nikro negative-air machine that pulls it out of your home rather than redistributing it. In Snoqualmie, this job often reveals black or green mold staining on the interior of metal trunk lines, especially in Ridge homes where tight construction has trapped moisture for multiple heating seasons. We photograph the before condition, clean every accessible run, and show you the after. Air Duct Cleaning in Snoqualmie covers full pricing and what’s included.
Dryer Vent Cleaning in Snoqualmie
Dryer vent cleaning in Snoqualmie runs into the same moisture complication: lint that gets damp in this climate compacts and hardens in the vent line, creating blockages that don’t occur in drier regions. We run a rotary brush through the full vent path from dryer to termination, test airflow before and after, and flag any sagging flexible duct that traps water. This job typically takes 45-90 minutes and is priced separately from whole-system duct cleaning. Dryer Vent Cleaning in Snoqualmie has the details.
Duct Sealing in Snoqualmie
Duct sealing with mastic and metal-backed tape closes the leaks that pull moist crawl-space and attic air into your system. In Snoqualmie’s older downtown homes, we regularly find disconnected joints and gaps around register boots that have been leaking for decades. In newer Ridge construction, the problem is often pinhole leaks at seams that were never properly sealed during original construction. Sealed ducts mean less moisture infiltration, more even heating, and lower energy bills. Duct Sealing in Snoqualmie explains the process and pricing.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Snoqualmie
We stock filters, media, and replacement parts from Honeywell, Aprilaire, and Guardsman for Snoqualmie service calls, and we carry Abatement Technologies HEPA filtration accessories for homes with allergy or asthma concerns. Most standard filter sizes are on the van, so if we find a clogged or degraded component during cleaning, we can replace it same visit rather than ordering and rescheduling. See our brands for the full equipment list.
Pricing for Air Duct Cleaning Company in Snoqualmie, WA
| Service | Typical range in Snoqualmie |
|---|---|
| Whole-home air duct cleaning (single system) | $450 – $650 |
| Whole-home air duct cleaning (two systems) | $750 – $950 |
| Dryer vent cleaning | $150 – $250 |
| Duct sealing (mastic, typical single system) | $800 – $1,400 |
| Duct sealing with Aeroseal (single system) | $1,500 – $2,500 |
| Mold inhibitor treatment (per system) | $125 – $200 |
| Register/grille cleaning and replacement | $15 – $35 per unit |
| Return air duct cleaning (separate from supply) | $150 – $250 |
| UV light installation (germicidal) | $400 – $700 |
| Filter upgrade to HEPA (installed) | $85 – $175 |
What pushes Snoqualmie prices toward the high end: homes with extensive mold staining requiring longer contact time and more aggressive agitation, multiple HVAC zones, or ductwork in finished basements with limited access. What keeps them lower: straightforward single-system homes with open crawl-space access. Either way, the price is written down before we touch your equipment, and it does not move at the door.
Neighborhoods We Serve in Snoqualmie
We work across the full Snoqualmie city limits and unincorporated areas, from the historic downtown core to the newest Ridge phases. Most appointments are scheduled within a 3-5 day window, with dispatch coordinated from our Seattle office to keep travel time reasonable.
- Snoqualmie Falls (historic downtown and mill-town homes)
- Snoqualmie Ridge (including Ridge, Meadowbrook, and Eagle Pointe)
- North Bend vicinity (unincorporated Snoqualmie-area homes)
- Tannerwood and surrounding valley floor
Service Area – Cities Near Snoqualmie
Our crews regularly work the I-90 corridor and Snoqualmie Valley, including North Bend, WA to the east, Issaquah, WA to the west, Hobart, WA to the south, and Sammamish, WA to the northwest. If you’re unsure whether your address falls inside our service radius, call (361) 326-5060 and we’ll confirm before booking.
Serving Snoqualmie, WA - Our Local Coverage Area
We’re based in the Snoqualmie 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 Company in Snoqualmie
No permit is required for standard air duct cleaning or dryer vent cleaning in Snoqualmie. Duct sealing that involves modifying or extending existing ductwork may require a mechanical permit through the City of Snoqualmie; we handle the permit research and include any required paperwork in our written quote before work begins. Call (361) 326-5060 if your project involves duct modification.
We typically book Snoqualmie appointments within 3-5 business days, with dispatch coordinated from our Seattle office. We do not offer same-day or emergency scheduling for duct cleaning, this is scheduled maintenance, not an urgent dispatch service. Calls are answered by a live person 24 hours a day, 7 days a week, so you can book at your convenience.
Some Snoqualmie Ridge HOA covenants require notification for work involving exterior penetrations or equipment modifications, but standard interior duct cleaning and sealing typically does not trigger HOA review. We recommend checking your specific HOA guidelines if your home is in a Ridge phase with active covenant enforcement. We’re happy to provide a scope-of-work letter for HOA submission if needed.
Ready for a written estimate? Call Hollis Air Duct Cleaning at (361) 326-5060. We’ll ask about your home’s age, system type, and any musty odors or uneven heating you’ve noticed, then give you a flat price for the full job, no per-vent add-ons, no surprises at the door. Every Snoqualmie job is covered by our 365-Day Done Right Promise: if the work fails within a year, we come back and make it right at no charge.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Snoqualmie Customers Say
"Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O."Sealed some leaking duct joints in the crawl space with mastic. Rooms that were always cold now get air."
- Ronald W."Dryer vent was packed with lint and took two hours to dry a load. Cleaned it out from the roof cap down. One cycle again."
- Paula Q.