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 Mercer Island, WA
Full-system air duct cleaning in Mercer Island typically runs $450 – $850 for most single-family homes, with dryer vent cleaning adding $120 – $180 and duct sealing ranging $600 – $1,400 depending on system size. Mercer Island’s dense tree cover, year-round humidity, and mix of mid-century ramblers with newer rebuilds create conditions we don’t see on the mainland. Fir needles, cedar pollen, and moss spores clog returns faster here, especially in older homes with crawlspace duct runs. Call (361) 326-5060 for a written estimate before any work starts.
Why Mercer Island Homes Are Different
Mercer Island sits in Lake Washington with a marine west coast climate that dumps 35+ inches of rain annually and keeps humidity high enough to grow moss on roofs that mainland crews only see in shaded valleys. That same moisture, combined with some of the highest pollen loads in the Seattle metro from mature Douglas firs, cedars, and maples, creates a unique problem for duct systems.
The housing stock splits roughly in two. Shoreline neighborhoods like Clarke Beach and Enetai are packed with 1950s – 1970s single-story ramblers and split-levels, many with original flex duct snaking through crawlspaces or added during decades of piecemeal renovation. These systems pull in fir needles and cedar pollen through foundation vents and crawlspace returns. By late spring, our techs regularly find green moss mats and needle buildup in the return plenum on the north end near the I-90 lid.
The island’s interior saw heavy rebuilding from the 1990s through the 2010s. Those homes use tighter duct systems and better filtration, but they’re not immune. The pollen load here is simply higher than Bellevue or Seattle, and the lake effect keeps humidity elevated year-round. We’ve found mildew colonies in supposedly “clean” systems that were last serviced three years ago on the mainland.
Our Main Mercer Island Services
Most calls we get from Mercer Island homeowners fall into three categories. Each has its own page with full pricing, process details, and local specifics.
Air Duct Cleaning in Mercer Island
We clean the full supply and return system with a Rotobrush rotary brush system for agitation and a Nikro negative-air machine to pull loosened debris out of your home entirely, not just redistribute it. On Mercer Island, we pay special attention to crawlspace returns in older ramblers, where fir needles and organic matter collect in ways we rarely see across I-90. Every job gets a written price before we start and before-and-after photos of your own ducts. Air Duct Cleaning in Mercer Island
Dryer Vent Cleaning in Mercer Island
Lint buildup in dryer vents is a genuine fire hazard, and Mercer Island’s older homes often have vent runs that are longer, more convoluted, or terminate in crawlspaces that complicate access. We use rotary brush systems and high-velocity air tools to clear the full run, then verify airflow with a meter. If your dryer’s taking two cycles to finish a load, the vent’s likely the problem, not the appliance. Dryer Vent Cleaning in Mercer Island
Duct Sealing in Mercer Island
Leaky ducts in crawlspaces and attics waste 20 – 30% of heated or cooled air before it reaches your rooms. On Mercer Island, this hits harder because many crawlspaces are damp year-round, and leaks pull that moisture into the system. We seal with mastic and mechanical fasteners, pressure-test afterward, and show you the before-and-after leakage numbers in writing. Duct Sealing in Mercer Island
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 Mercer Island
We stock parts and filters for Honeywell, Aprilaire, and Abatement Technologies systems commonly found in Mercer Island homes, plus most major HVAC brands. If we don’t have it on the truck, our Seattle office coordinates same-day or next-morning pickup. our brands
Pricing for Air Duct Cleaning Company in Mercer Island, WA
| Service | Typical range in Mercer Island |
|---|---|
| Whole-home air duct cleaning (single system) | $450 – $850 |
| Whole-home air duct cleaning (dual system) | $750 – $1,200 |
| Dryer vent cleaning (standard wall termination) | $120 – $180 |
| Dryer vent cleaning (roof or crawlspace termination) | $180 – $250 |
| Duct sealing (single system, mastic method) | $600 – $1,000 |
| Duct sealing (single system, aerosol sealant) | $900 – $1,400 |
| HVAC mold/mildew treatment | $200 – $400 |
| Register/grille deep cleaning (add-on) | $75 – $125 |
What pushes Mercer Island jobs toward the higher end: crawlspace access requiring extra setup, heavy organic debris from tree cover, and older flex duct that needs careful handling to avoid damage. We price every job in writing before touching equipment. The number on the page is the number at the door.
Neighborhoods We Serve in Mercer Island
We work across the full island, from the north end near the I-90 lid to the south end around Mercerwood and Clarke Beach. Most appointments are scheduled within a week, with dispatch coordinated from our Seattle office.
- Clarke Beach
- Enetai
- Mercerwood
- East Seattle (Mercer Island portion)
- Faben Point
Service Area – Cities Near Mercer Island
Our crews cross I-90 and the 520 corridor regularly for scheduled work in Bellevue, WA, Medina, WA, Seattle, WA, and Renton, WA. If you’re on the island and wondering whether we cover your address, we do. If you’re across the water and nearby, we likely do too. Call to confirm.
Serving Mercer Island, WA - Our Local Coverage Area
We’re based in the Mercer Island 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 Mercer Island
No permit is required for standard interior duct cleaning, dryer vent cleaning, or duct sealing in Mercer Island. If your home is in an HOA with exterior work restrictions, duct sealing that requires crawlspace or attic access may need notification. We handle the scope discussion with you before booking so there are surprises.
Most Mercer Island appointments are available within 3 – 7 business days, depending on season. Spring pollen season and early fall tend to fill first. We don’t overbook, and we don’t promise same-day what we can’t deliver. Call (361) 326-5060 to check current openings.
Yes. We’ve cleaned ducts in ramblers on the north end with 18-inch crawlspaces and in rebuilt homes on the interior with conditioned attics. Our equipment fits tight spaces, and our techs are trained to work safely in confined areas. If we can’t access it, we’ll tell you before we book, not after we arrive.
Ready for a written estimate? Call (361) 326-5060. We’ll ask about your home’s age, system type, and any symptoms you’ve noticed, then give you a flat price range before we schedule. No per-vent pricing, no bait-and-switch, no surprises at the door.
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 Mercer Island 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.