Duvall, King County
Flashing repair on a Duvall chimney costs between $330 and $1,500. Intact metal with tired sealant is a reseal, billed near $330. Stripping the old pieces and fitting new step and counter flashing around the whole stack is the upper case. Which one you need is settled on the roof, with photos you can check yourself.
Typical investment
$330–$1,500
Book an inspection
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 Duvall home — we'll point you to the right fix.
What we do
The same crew, the same written quote — for Duvall 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.
Nearly four of every five housing units in Duvall are detached single-family houses (78.9 percent by Census estimate), and each of those roofs is its owner's problem alone. The flashing is the metal seam between chimney and roofing. It is also the first suspect when a ceiling stains near the fireplace, because water running down a roof slope hits the uphill side of the stack and looks for a way under.
Duvall's wood-heat figure, 4.5 percent of occupied homes naming wood as their main fuel, is an estimate with a margin almost as large as the count itself (125 households, ±113). It is still more than seven times King County's 0.6 percent.
Where a wood stove vents through a factory-built metal chimney, that pipe crosses the roof with its own flashing and storm collar. Washington's residential code holds factory-built chimneys that serve solid-fuel appliances to the Type HT requirements of UL 103 and to be installed as listed, and the roof penetration is part of that installation. A loose collar leaks exactly like failed step flashing on brick.
Every chimney flashing repair we do in Duvall includes:
Smoke coming back into the room, or a smell that won't go? Book the inspection first.
Book nowTwo local conditions load that seam. The first is slope: WeatherSpark's terrain summary gives Duvall an elevation change of 591 feet within two miles, and houses stepped up a hillside catch wind-driven rain on their exposed faces. The second is paperwork. Re-roofing appears on the city's Permit Required list, and a reroof is the moment flashing is either replaced properly or buried under new shingles.
A household that depends on its stove can keep burning through a ban only with an exemption approved beforehand by Puget Sound Clean Air Agency, under its No Other Adequate Source of Heat program. The agency states plainly that cost is not grounds for one: electric, oil or propane heat being expensive does not qualify.
Everyone else lets the fire go out, and under WAC 173-433-150 nobody adds fuel once a ban has started. For flashing work that is convenient: the flue is cold, nothing is venting at roof level, and the seam can be opened without smoke in the technician's face.
Attic side first when it is reachable, then the roof, so the leak path is confirmed before metal is touched.
Shingles beside the stack are lifted to see the step flashing and the state of the deck beneath.
Sound metal is resealed; failed metal is replaced and the counter flashing is let into the joints.
The finished seam is photographed, and on a dry day we run water over it to confirm.
What this work is quoted at for Duvall homes — the exact figure comes from the $99 on-site inspection, credited toward the work.
| Service | Price in Duvall | What that covers |
|---|---|---|
| Chimney Flashing Repair | $330–$1,500 | Reseal at the low end, full flashing replacement at the high |
| 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 Duvall. 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.
Duvall is a hillside town above the Snoqualmie River, incorporated in 1913, with homes with a median build year of 2000, almost all of them built since 1980. We work every part of it — Old Town, the upper plateau included.
DuvallKing County, WA · 47.742, -121.986
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.
Ask your roofer to show you what they plan at the chimney. Duvall requires a permit for re-roofing, and that job is the cheapest moment to renew flashing. We can inspect before or after and tell you what was done.
No. Crowns, caps and porous brick leak too. We check them on the same visit so you are not paying for metal when the water came from above.
Whether the metal can be kept. A reseal is a short job; full replacement on a steep roof with a wide stack takes most of a day.
A $99 on-site inspection, a written quote before any work, and photos of every item we touch.
