Clyde Hill, King County
In Clyde Hill, chimney waterproofing runs $285–$795; a taller stack or more bare brick moves you up that range. The product we apply is breathable: rain beads off the surface, yet any dampness already in the masonry can still work its way out, and we apply it only to brick that is clean, dry and sound.
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 Clyde Hill home — we'll point you to the right fix.
What we do
The same crew, the same written quote — for Clyde Hill 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.
On Clyde Hill nearly every chimney belongs to a detached single-family house, and a stack that rises above its roofline has every face open to the weather. There is no shared wall and no building envelope to shelter the brick. Whatever falls on the hill between autumn and spring lands directly on the masonry, so the brick's ability to shed water decides how long the joints and the crown last.
Every chimney waterproofing we do in Clyde Hill includes:
Smoke coming back into the room, or a smell that won't go? Book the inspection first.
Book nowThe questions we hear about waterproofing on the hill are practical. Is the brick sound enough to seal, or does it need repair first? Is there already a coating on it that will stop a new one from working? And when can it be done, given how few dry stretches the season leaves? A repellent applied over cracked joints or a failing crown only hides the problem, so we check both before quoting.
A water repellent keeps brick from soaking up rain, but it adds no strength. FEMA's guidance is that the most vulnerable masonry chimneys are older unreinforced ones with worn mortar, and that mortar work alone does not change seismic performance.
The state's geologists give an 85 percent probability of a deep 6.5-plus earthquake here within 50 years. So we are plain about it: waterproofing is protection against weather, not a fix for a stack that has cracked or shifted.
We look for cracked joints, a failing crown and loose brick. Sealing comes after any of those are fixed, never over them.
The repellent needs dry brick to soak into, so we book the application for a dry spell and tell you if the forecast moves it.
The brick is cleaned, then the repellent goes on every exposed face in even coats, top to roofline.
You get photos of the finished job and the date by which the treatment should be checked again.
What this work is quoted at for Clyde Hill homes — the exact figure comes from the $99 on-site inspection, credited toward the work.
| Service | Price in Clyde Hill | What that covers |
|---|---|---|
| Chimney Waterproofing | $285–$795 | Breathable sealer — reapplied every 3–5 years in this climate |
| 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 Clyde Hill. 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.
Western Washington's wet season starts in October and builds through the winter; by January, relative humidity averages around 87 percent before dawn and 78 percent in the afternoon. Brick in that air dries slowly, if at all, between storms.
CSIA counts a water repellent among its four low-cost steps against water damage, and says water harms masonry chimneys more than fire does. The product matters as much as the step: it has to be vapor-permeable, shedding rain while letting trapped moisture out.
Clyde Hill is a small, affluent residential city on the high ground just north of downtown Bellevue, with large single-family estate homes.
Clyde HillKing County, WA · 47.632, -122.218
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–$795. A short stack with little exposed brick is at the low end; a tall chimney with all four faces exposed is at the high end.
Plan to have it renewed every three to five years in this climate. We note the date on your report so you know when to look again.
A non-breathable coating traps the moisture already in the brick, which can then push the face off. A vapor-permeable repellent lets that water out while keeping rain from getting in.
No. CSIA lists a cap, a proper crown, sound flashing and a water repellent as separate defenses. Waterproofing protects the brick faces; the cap and crown protect the top.
A $99 on-site inspection, a written quote before any work, and photos of every item we touch.
