Mercer Island, King County
On Mercer Island, cleaning a dryer vent costs $105 to $295. A few feet of straight duct out a basement or main-floor wall sits at the bottom of that range; a long, winding duct, a roof or upper-story exit, or a nest in the line sits at the top. Either way, the lint comes out from the machine to the outside hood.
Typical investment
$105–$295
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$99 plus tax, deducted when you approve the repair
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What we do
The same crew, the same written quote — for Mercer Island homes.
Level 1 or Level 2 inspection, with a camera scan where warranted
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Complete sweep of the flue and firebox, protected by drop cloths and HEPA filtration
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Restoration of brick, mortar joints and firebox
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A stainless-steel or ceramic liner run the full height of the flue
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A stainless cap fitted to your flue's exact dimensions
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Cleaning of the burner, pilot and valve assembly
Learn moreRanges shown for orientation — the exact figure is written up on-site, after the inspection.
Mercer Island is mostly a town of houses: around the 2020 census it counted about 10,570 homes, 7,431 of them single-unit. In a detached house the dryer vent often runs through a wall cavity, an attic or up to the roof, where nobody sees it until the dryer starts taking two cycles to finish a load.
Lake water surrounds Mercer Island on all sides, taking up around 6.52 square miles of the city's area per Wikipedia's city profile. King County classifies Lake Washington as the largest of its three major lakes.
The WRCC climate summary for Washington says the western half of the state gets its strongest winds from the south and southwest, mostly in late fall and winter. A dryer hood on a wall facing that way can have its flapper blown open, which lets wet air and rain back into the duct. We check that the damper seals when the dryer is off.
Shade and moisture are what moss needs, OSU Extension says, and its guidance names trimming nearby trees as the lasting way to keep a roof clear. WSU Extension notes that unchecked moss shortens the life of the roof it grows on.
A dryer vent that exits through a shaded roof shares those conditions. Growth and debris around the cap can partly block it, so warm, moist exhaust backs up and lint settles in the duct. When the vent exits on the roof, we clean the cap from above.
Every dryer vent cleaning we do in Mercer Island includes:
Smoke coming back into the room, or a smell that won't go? Book the inspection first.
Book nowIn a damp climate, lint does not stay dry and fluffy inside a duct. It picks up moisture, clumps, and sticks to the walls, especially where the duct runs through a cold attic or dips before it exits. Add a flapper hood that sticks open and lets in wet air, and a vent can clog faster here than the same run would somewhere drier.
Two or more branches of the Seattle fault run through Mercer Island, according to the city's emergency management office, and state geologists at DNR rate the odds of a deep Puget Sound quake of at least M6.5 over the coming half-century at 85 in 100.
A dryer vent is not a chimney, but many island houses have both. If yours has a masonry chimney that has not been looked at since the last tremor you felt, CSIA's advice is a Level 2 inspection after any seismic event, and we can look at it on the same visit.
We move the dryer out, disconnect the transition duct and clear the lint that collects behind the machine and inside its outlet.
Rotary brushes and a vacuum work through the full duct, from the wall connection to the outside hood, including bends and any rise to the roof.
The exterior cap is cleaned, the flapper or damper is freed so it opens with airflow and closes when the dryer stops, and any nest material is removed.
We reconnect the dryer, run it, and check airflow at the hood. Crushed foil ducts or unsafe sections are pointed out with a price to replace them.
In a western Washington January, relative humidity typically moves between roughly 78 and 87 percent over the course of a day, and the wet season lasts from October into late winter, the Western Regional Climate Center reports.
A dryer pushes warm, moist air into a duct that often passes through a cold attic or outside wall. In humid weather that moisture condenses sooner, and the lint it carries sticks where it lands. Moisture is the common thread on this island: CSIA singles out water as the main cause of damage to masonry chimneys, and in a laundry duct it is what turns loose lint into a packed plug.
What this work is quoted at for Mercer Island homes — the exact figure comes from the $99 on-site inspection, credited toward the work.
| Service | Price in Mercer Island | What that covers |
|---|---|---|
| Dryer Vent Cleaning | $105–$295 | Full run cleaned; roof or upper-floor terminations at the top |
| Chimney Sweep | $189–$449 | Full flue swept, Level 1 inspection included |
| Chimney Inspection | $99 plus tax | Level 1 visual; Level 2 adds a full camera scan |
| Chimney Relining | From $1,895 | Full-length stainless liner, sized to the appliance |
| Chimney Repair | From $425 | Masonry repair — brick and mortar, scoped after diagnosis |
Ranges are what these jobs are quoted at in Mercer Island. The exact figure is set on site after a $99 inspection (credited toward the job if you go ahead), and you approve it before any work starts.
Mercer Island is an island city in the middle of Lake Washington, on Lake Washington, with mid-century and high-value waterfront homes.
Mercer IslandKing County, WA · 47.571, -122.222
Before and after
Illustrations of what each repair changes on a typical chimney — not photos of a specific job.
Before
After
Before
After
Before
After
Four steps, each one on paper — so you always know what happens next.
Choose a genuine opening on the crew's calendar. Confirmation is immediate.
Liner, crown, cap, flashing and masonry examined in order — each finding photographed.
One document, plain numbers, covering only the work your chimney genuinely needs.
The repair is completed, then handed over with before-and-after photos of every item.
$105 to $295. Price depends on the length of the run, how many turns it has, whether it exits through the roof, and whether anything is nesting in it.
For most households, once a year is a sensible habit. Large families, long duct runs or a roof exit can justify doing it more often.
Yes. Roof vents clog more easily because lint has to travel upward, and the cap on top can be blocked by debris from nearby trees. We clean both from above and below.
A $99 on-site inspection, a written quote before any work, and photos of every item we touch.
