Bothell, King County
Chimney waterproofing in Bothell costs $285 to $795, depending on how tall and wide the stack is and how much brick needs coating. We use a breathable, vapor-permeable sealer that stops rain soaking in yet lets vapor trapped in the brick work its way out. It is the last step, not the first: cracks and open joints are repaired before anything is sprayed on.
Typical investment
$285–$795
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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 Bothell home — we'll point you to the right fix.
What we do
The same crew, the same written quote — for Bothell homes.
Level 1, or a Level 2 when needed, which means a video camera travels the full flue
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Rotary or rod brushing of the full flue, with the hearth covered and a HEPA vacuum running
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Replacement of cracked or spalled brick with a close color match
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Camera scan and flue measurement before anything is ordered
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Measurement of each flue and of the crown before fitting
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Burner, pilot assembly and thermocouple or thermopile cleaned and checked
Learn moreRanges shown for orientation — the exact figure is written up on-site, after the inspection.
Brick is porous, and a chimney stands higher and more exposed than any other part of a roof. In Bothell, many stacks date from the 1960s and 1970s, which means half a century of wet winters soaking in and drying out. Once the face of the brick starts to absorb water freely, each freeze does a little more damage, and the inside of the chimney stays damp long after the rain stops.
Once the sealer has cured and you want a fire, look up the day's status first. PSCAA publishes it on its website, by recorded line at 800-595-4341 and through alert sign-ups, with a map of where a ban applies. Its bans apply on both the King County and the Snohomish County sides of Bothell.
The summer is different: fire safety bans in the dry months come from the King County or Snohomish County fire marshal, not from the air agency. Knowing which authority speaks for which season saves a lot of guessing in a city that sits across a county line.
Every chimney waterproofing we do in Bothell includes:
Smoke coming back into the room, or a smell that won't go? Book the inspection first.
Book nowThe typical sign is a stack that looks darker for days after a storm, with white mineral streaks forming as it dries. Inside, it can show up as a musty smell from the fireplace or a tea-colored ring on the drywall next to the chase. A sealer slows all of that, but only if the crown, cap and flashing are already doing their part.
A sealer can only go on dry masonry, and Bothell gives it a short window. WeatherSpark lists July as the driest month at about 0.8 inches of rain, compared with roughly 8.3 inches in November. The Western Regional Climate Center records 15 to 20 mostly sunny days per summer month in the state's western lowlands, and as few as four in a winter month.
That is why waterproofing here is a summer and early fall job. Brick that has been soaking since October needs several dry days before it will take a coating evenly, and a sealer applied over trapped moisture does more harm than good.
We check how the masonry absorbs water and note every crack and joint that must be fixed first.
Joints are repointed where needed, the surface is cleaned and the brick is left to dry fully.
The breathable sealer goes on in even coats over the whole exposed stack, top to roof line.
We check for missed areas and send you photos, plus the date we suggest re-treating the brick.
What this work is quoted at for Bothell homes — the exact figure comes from the $99 on-site inspection, credited toward the work.
| Service | Price in Bothell | What that covers |
|---|---|---|
| Chimney Waterproofing | $285–$795 | Breathable sealer — reapplied every 3–5 years in this climate |
| Chimney Sweep | $189–$459 | 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 Bothell. 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.
In 2001 the Nisqually earthquake left Bothell with only minor damage, not enough to qualify the city for reimbursement, according to its 2025 hazard mitigation annex. The same plan lists the South Whidbey Fault first among nearby active faults, and the city's hazards page points out that Washington ranks second nationwide for earthquake risk.
Minor damage on a chimney often means hairline cracks in the crown or joints that nobody notices for years. A sealer will not bridge them, so we look for them before treating the brick, and repair them first.
Bothell is a Sammamish River city whose 13.66 square miles straddle the King–Snohomish county line, on the Sammamish River, with homes with a median build year of 1992, most of them built after World War II replaced farms and dairy pastures. We work every part of it — Canyon Park, Norway Hill, Queensborough, Brentwood included.
BothellKing County, WA · 47.760, -122.205
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.
$285 to $795. A short, simple stack sits near the low end; tall chimneys, several flues or extensive surface bring it toward the top.
A breathable sealer generally needs renewing every three to five years in a wet climate. We note the date in your report so you know when to check.
The brick must be dry when the sealer goes on, so we schedule it for a stretch of dry days. In Bothell that usually means summer or early fall.
A $99 on-site inspection, a written quote before any work, and photos of every item we touch.
