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.
Before
After
Before
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Before
AfterAir Duct Cleaning Company in Issaquah, WA
Air duct cleaning in Issaquah runs $350 – $650 for a typical single-system home, with most jobs completed in one visit. What drives the real difference here isn’t the equipment alone, it’s the Pacific Northwest microclimate: Issaquah’s Cascade foothills location traps moisture, pollen, and biological contaminants inside ductwork for months while windows stay shut. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and our crews work Issaquah from the dispatch office in Seattle. Call (361) 326-5060 for a written estimate before any work starts.
Why Issaquah Homes Are Different
Issaquah sits where moist Pacific air meets the Cascades, and that geography reshapes what we find in ducts here. Over 150 rainy days per year keep humidity high enough for mold and mildew to colonize crawlspace and attic duct runs, especially in the flexible ductwork common to 1990s – 2010s subdivisions. Condensation forms on cold metal, and the resulting biological growth isn’t a surface stain, it’s a system-wide contamination issue.
The housing stock splits sharply. Newer developments like Issaquah Highlands and Talus use tight envelopes with flex ducts that perform well when clean but trap moisture when compromised. Older downtown cottages and 1970s – 80s split-levels often carry original galvanized steel or early flex duct prone to rust, separation at joints, and rodent entry points. In Squak Mountain and other greenbelt-backed neighborhoods, we regularly find rodent nests and droppings inside duct runs, turning a standard cleaning into a sanitization and pest-exclusion job.
Seasonal pollen from Douglas firs and alders coats duct interiors after heavy spring blooms, and the area’s aggressive moss and mold spores infiltrate outdoor air intakes. Duct cleaning in Issaquah is less about household dust and more about removing biological contaminants specific to this climate.
Our Main Issaquah Services
Issaquah homeowners call us for three core services, each shaped by the local conditions above.
Air Duct Cleaning in Issaquah
We clean supply and return ductwork with Rotobrush rotary brush systems and Nikro negative-air machines, pulling debris toward the vacuum rather than pushing it into living spaces. In Issaquah, this means addressing mold-prone flex ducts in newer homes and rusted galvanized runs in older stock. We inspect for rodent intrusion in greenbelt neighborhoods and apply sanitization where biological contamination warrants it. Every job gets a written price before we start and falls under our 365-Day Done Right Promise. Air Duct Cleaning in Issaquah
Dryer Vent Cleaning in Issaquah
Dryer vent blockages in Issaquah combine standard lint accumulation with moss and debris drawn into exterior vents during wet months. We run brushes and high-velocity air through the full vent path, check termination points for proper clearance, and verify airflow with a meter. Blocked dryer vents are a genuine fire hazard, and we’re explicit about recommending trained technicians for this work rather than homeowner attempts with inadequate tools. Dryer Vent Cleaning in Issaquah
Duct Sealing in Issaquah
Leaky ducts in Issaquah’s humid climate pull unconditioned, moisture-laden air from attics and crawlspaces, accelerating mold growth and wasting energy. We seal accessible joints with mastic and mechanical fasteners, then pressure-test the system to verify results. Tight ductwork matters more here than in drier climates because every gap is a potential condensation point. Duct Sealing in Issaquah
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 Issaquah
We stock parts and filtration products from Honeywell, Aprilaire, and Guardsman, with Abatement Technologies equipment for specialized remediation. Most common replacements ship to our Seattle office within 24 hours, so Issaquah jobs rarely wait on parts. See our brands for the full roster.
Pricing for Air Duct Cleaning Company in Issaquah, WA
| Service | Typical range in Issaquah |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (dual system) | $550 – $950 |
| Dryer vent cleaning (ground-floor termination) | $120 – $180 |
| Dryer vent cleaning (second-story or rooftop) | $180 – $260 |
| Duct sealing (mastic, accessible runs) | $400 – $800 |
| Duct sanitization/mold treatment | $150 – $300 add-on |
| Rodent droppings remediation & deodorizing | $200 – $400 add-on |
| HVAC inspection with photo documentation | $75 – $125 |
Prices move up in Issaquah when we find heavy biological contamination requiring extended sanitization, inaccessible ductwork in tight crawlspaces, or rodent remediation that demands protective protocols and multiple passes. We write the price down before any work starts, and that number does not change at your door.
Neighborhoods We Serve in Issaquah
Our crews cover Issaquah from the downtown core through the foothill developments, typically arriving inside the quoted window whether you’re off I-90 or up in the higher elevations.
- Issaquah Highlands
- Talus
- Squak Mountain
- Olde Town / Downtown Issaquah
- South Cove
Service Area – Cities Near Issaquah
We schedule Issaquah appointments alongside calls from surrounding communities. Our regular service area includes Hobart, WA, Maple Valley, WA, Sammamish, WA, and Snoqualmie, WA. Dispatch routes these together when possible to keep arrival windows reliable.
Serving Issaquah, WA - Our Local Coverage Area
We’re based in the Issaquah 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 Issaquah
No permit is required for standard duct cleaning or dryer vent maintenance in Issaquah. Duct sealing that alters or extends the HVAC system may need review; we flag this during inspection and advise if your project crosses that line. Call (361) 326-5060 and we’ll walk through your specific setup.
Several Issaquah communities, particularly Issaquah Highlands and Talus, have HOA rules about contractor parking and work hours. We coordinate with your HOA guidelines when you alert us in advance, and our uniformed technicians carry documentation that most associations require.
We typically book Issaquah appointments within 3 – 5 business days, with flexibility for urgent situations like suspected mold contamination or complete dryer vent blockage. Our phones are answered by a live person 24/7, so you reach a human who can check real availability rather than a callback queue. Call (361) 326-5060 to hold a slot.
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 Issaquah 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.