Carnation, King County
Air duct cleaning for a Carnation house is priced from $525. The count of supply and return openings, the number of air handlers and how the trunk lines are reached set the total, which is confirmed in writing after a look at the system. The work is done under negative pressure, so what is loosened goes into the machine and not into the rooms.
Typical investment
From $525
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Book your $99 inspection
$99 plus tax, deducted when you approve the repair
Not sure where to start
Pick what you're seeing at your Carnation home — we'll point you to the right fix.
What we do
The same crew, the same written quote — for Carnation homes.

A Level 1 check, or a Level 2 with a camera run through the flue when the visible parts are not enough
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Brushing of the whole flue, top to firebox, with brush heads sized to the liner
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A photographed assessment that separates cosmetic wear from structural damage
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A camera run and full measurements before any liner is ordered
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Measurement of each flue, or of the full crown for a multi-flue cap
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Cleaning and testing of the burner, the pilot assembly and the ignition
Learn moreRanges shown for orientation — the exact figure is written up on-site, after the inspection.
Carnation is a town of houses. About 88% of its housing units are detached single-family homes, per the Census survey, and the state's own count for April 2026 adds 46 mobile homes and specials. Electricity is the main heat in about half of occupied homes and utility gas in 44.5%. The survey does not say how that heat is delivered, so we do not assume a house has ductwork until we have seen the registers.
The City of Carnation explains on its flooding page that winter floods are driven by heavy precipitation and spring floods by snowmelt that rain then adds to. The town lies where the Tolt joins the Snoqualmie River, and a drinking-water reservoir sits 16 miles up the Tolt's south fork.
Where a house has its ducts in a crawl space, that is the lowest part of the heating system and the first to meet damp ground or standing water. Wet duct insulation loses its value and can grow mold on the outer jacket. During a cleaning visit in Carnation we crawl the runs when access allows, and report sagging, torn or water-marked sections along with the dust.
Every air duct cleaning we do in Carnation includes:
Smoke coming back into the room, or a smell that won't go? Book the inspection first.
Book nowDucts collect what the house produces: dust, pet hair, construction debris left from the build, and whatever the return side pulls from a crawl space or attic through leaky joints. Outdoor air adds its share. Within two miles of Carnation, WeatherSpark's land survey finds trees over roughly 54% of the surface and crops over 26%. Summer smoke is the newer concern. The governor's wildfire emergency of August 1, 2026 covered the whole state and banned burning until September 30. For smoke episodes the regional clean air agency points households to HEPA filtration, or to a MERV-13 filter strapped onto a box fan. Clean ducts and a fresh filter help a system do that job.
Carnation's moisture is a cool-season matter. WeatherSpark rates muggy conditions at about 0% all year, while its wet season stretches across more than seven months. WRCC's regional narrative gives January afternoons in the interior valleys a relative humidity near 78%.
For a duct system that means condensation risk in winter, on cold metal passing through unheated space, not summer sweating. Dust that gets damp sticks, and stuck dust is what a filter change will never remove. We check duct insulation and joint sealing during the visit, because keeping crawl-space air out of the return side does more for indoor air than any cleaning schedule.
We count registers, find the trunks and the air handler, and photograph a few runs from inside so you see the starting condition.
The collection machine is connected near the air handler. With registers covered, the whole duct network is held under negative pressure.
One opening at a time, starting with the farthest, each run is agitated so debris travels to the collector.
Access openings are sealed with sheet-metal patches, registers go back on, and the after photos are set beside the before ones.
What this work is quoted at for Carnation homes — the exact figure comes from the $99 on-site inspection, credited toward the work.
| Service | Price in Carnation | What that covers |
|---|---|---|
| Air Duct Cleaning | From $525 | Whole HVAC system — trunks, branches and every register |
| 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 $1,900 | 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 Carnation. 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.
Carnation is a small town platted as Tolt in 1902, where the Tolt River meets the Snoqualmie River, with homes with a median build year of 1993, though about one in seven dates from before 1960.
CarnationKing County, WA · 47.648, -121.914
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.
$525. A bigger house, a second air handler or trunks buried behind finishes add to it; you have the figure in writing before we begin.
No. The filter does the daily work. Cleaning removes what got past it over the years.
They can be. Insulated flex duct that has been wet holds moisture and may need replacing, not cleaning. We look first and say which runs can be saved.
A $99 on-site inspection, a written quote before any work, and photos of every item we touch.