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.
Air Duct Cleaning Company in Bryn Mawr-Skyway, WA
Air duct cleaning in Bryn Mawr-Skyway typically runs $350 – $650 for a whole-home system, with most jobs completed in a single visit. We’re Hollis Air Duct Cleaning, and we serve this unincorporated King County community from our Seattle office. Bryn Mawr-Skyway’s mid-century housing stock and dense moss, alder, and cedar canopy create duct conditions we don’t see in nearby Seattle or Renton. Call (361) 326-5060 for a free estimate.
Why Bryn Mawr-Skyway Homes Are Different
Bryn Mawr-Skyway sits at the forest’s edge, and that matters for what’s inside your ducts. The surrounding canopy acts like a natural air filter that never gets changed, shedding fine organic debris year-round. Cedar needles, moss spores, and alder pollen find their way into fresh-air intakes, especially after heavy rain when moisture pulls that material indoors. We’ve opened systems here that carried a distinct forest-floor smell, a signature of this community’s unique vegetation interface.
The housing stock reinforces the problem. Most homes are mid-century ranch and split-level builds from 1950 to 1980, with original or lightly updated ductwork. Those galvanized steel runs weren’t sealed to modern standards, so they leak and they collect. The damp, mild climate keeps humidity high through long shoulder seasons, meaning HVAC systems run near-continuously, circulating moisture-laden air that feeds mold and mildew inside the ducts. Short summers never fully dry the system out. In Lakeridge or along Renton Avenue, we regularly find debris accumulation that would be impossible in more urban settings with less tree cover and newer construction.
Our Main Bryn Mawr-Skyway Services
Homeowners here call us most often for these three jobs, each with its own local conditions and approach.
Air Duct Cleaning in Bryn Mawr-Skyway
We clean the full supply and return network with a Rotobrush rotary brush system and negative-air extraction. In Bryn Mawr-Skyway, that means dislodging packed organic debris, mold, and mildew that the damp climate deposits inside mid-century ductwork. We run the brush through every accessible trunk and branch, then pull the loosened material out with Nikro negative-air machines so nothing settles back into your home. Air Duct Cleaning in Bryn Mawr-Skyway covers the full process and what to expect.

Dryer Vent Cleaning in Bryn Mawr-Skyway
Dryer vents here clog faster than you’d expect. The same humidity that promotes mold in ducts also keeps lint dense and sticky, and longer vent runs common in split-level homes reduce airflow. We clear the full run from appliance to termination, check for proper backdraft, and verify airflow with a meter. Dryer Vent Cleaning in Bryn Mawr-Skyway explains our process and why it matters for fire safety.

Duct Sealing in Bryn Mawr-Skyway
Original ductwork in 1950s – 1980s Bryn Mawr-Skyway homes leaks at joints, seams, and connections. We seal accessible runs with mastic and mechanical fasteners, closing gaps that pull attic air and crawlspace moisture into your system. The goal is cleaner air delivery and less strain on your HVAC. Duct Sealing in Bryn Mawr-Skyway covers what’s reachable and what results to expect.

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 Bryn Mawr-Skyway
We stock parts and filters for Honeywell, Aprilaire, and Guardsman systems commonly found in local homes. Most replacement components are available same-day or next-day through our Seattle office. Our brands page lists the full roster.
Pricing for Air Duct Cleaning Company in Bryn Mawr-Skyway, WA
| Service | Typical range in Bryn Mawr-Skyway |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (dual system) | $550 – $950 |
| Dryer vent cleaning (standard run) | $120 – $200 |
| Dryer vent cleaning (long run or rooftop termination) | $180 – $280 |
| Duct sealing (partial, accessible runs) | $400 – $700 |
| Duct sealing (whole-home) | $800 – $1,400 |
| HVAC mold/mildew treatment add-on | $150 – $300 |
| Filter replacement (media filter, installed) | $45 – $85 |
Prices move up when we find heavily compacted organic debris, multiple systems, or limited attic or crawlspace access common in older Bryn Mawr-Skyway ranches. We write the price down before any work starts, and that number does not move at the door.
Neighborhoods We Serve in Bryn Mawr-Skyway
We work across the full community, from the hillside homes near Bryn Mawr Park to the valley floor along Martin Luther King Jr. Way. Scheduling runs from our Seattle office, with most Bryn Mawr-Skyway appointments available within a few days.
- Lakeridge
- Bryn Mawr
- Skyway
- Earlington
- Campbell Hill
Service Area – Cities Near Bryn Mawr-Skyway
Our crews cover Bryn Mawr-Skyway and surrounding communities throughout King County and beyond. We also schedule work in Seattle, WA, Spokane, WA, Tacoma, WA, and Vancouver, WA.
Serving Bryn Mawr-Skyway, WA - Our Local Coverage Area
We’re based in the Bryn Mawr-Skyway 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 Bryn Mawr-Skyway
No permit is required for standard duct cleaning or dryer vent cleaning in unincorporated King County. Duct sealing that involves modifying HVAC connections may need review. We check requirements before any work that could trigger a permit, and we handle the paperwork if needed. Call (361) 326-5060 and we’ll confirm for your specific job.
Most Bryn Mawr-Skyway appointments are scheduled within two to four business days. Our Seattle office coordinates dispatch for this area, and we arrive inside the quoted window. We do not offer same-day or emergency scheduling for duct cleaning, it’s a planned maintenance job that we book properly. Call (361) 326-5060 to check current availability.
Yes. We work with homeowners in association-managed neighborhoods including Lakeridge and areas near Bryn Mawr Park. We carry proof of insurance and background-check documentation for technicians if your HOA requires it. Let us know any access restrictions when you call, and we’ll coordinate with your association if needed. Call (361) 326-5060 to discuss your property’s requirements.
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 Bryn Mawr-Skyway Customers Say
"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."No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L.




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