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Chimney Crown Rebuild in Sammamish, WA
Cracked crowns on Sammamish’s brick chimneys rebuilt to shed water. Starting at $299, free quote.
- Serving Sammamish & King County
- Free 2nd-opinion quotes
- Price match + 10–25% discount
Free Chimney Crown Rebuild Quote in Sammamish
We'll confirm a time by phone or text.
Not every Sammamish chimney has a crown. Most homes on the plateau typically have prefab chimneys with a metal chase cover, and if that is yours, the page you want is chase cover replacement. But the older houses around Pine Lake and Beaver Lake, the acreage properties, and the lakefront homes have brick chimneys, and those are capped with a concrete crown that is the first thing to fail on a wet plateau roof. Crowns poured thin and flush with the brick crack, and once cracked they feed water into the brick and the liner tiles below, loosening the top of the chimney course by course.
A crown rebuild strips the failed slab and pours a new one: thicker, sloped to drain, overhanging the brick with a drip edge so water falls clear instead of running down the face. Crown rebuilds start at $299. The quote is free and comes with photos from the roof so you can see what we see. If you already have a written quote, we give a free second opinion and price match plus 10-25% off. Sammamish is a short drive from our Renton office, so scheduling is quick, and if you are not happy with the finished crown, we are not done.
Symptoms
Signs Sammamish homeowners notice
- Pieces of concrete or mortar missing from the top edge of the chimney
- Cracks wide enough to see daylight or fit a coin into
- The crown is flat or dished in the middle so water pools on it
- No overhang: the slab ends flush with the brick faces
- The top two or three courses of brick are spalling or loose
- A previous crown sealant is peeling off and the cracks underneath have reopened
Sammamish Conditions
Why this happens in Sammamish
A crown on a Sammamish lake-area chimney takes about 73% of the region’s 40.34 inches of annual rain in the six months from October through March, and on a tree-shaded lot it typically never dries out in between. Regional guidance notes that Western Washington moss spreads fastest from October through April on shaded surfaces that dry slowly, and moss holds water against the concrete while its rhizoids can lodge in cracks. The Brick Industry Association’s water-penetration notes are the basis for crown design, and they make the point that keeping masonry dry is the controlling factor.
Then the freeze-thaw cycle does the rest. Sea-Tac winter lows average 37.1F to 37.7F, and the region sees roughly 60 days a year that touch 32F but only about 4 that stay below freezing all day. A saturated crown typically freezes and thaws many times per winter, and the Brick Industry Association ties that cycling to cracking, spalling, and disintegration, which is exactly the crumbling crown edge we rebuild.
How It Works
Our chimney crown rebuild process
Remove the failed crown
We break out the old slab or mortar wash down to solid brick, protecting the flue opening so debris does not fall into the chimney.
Repair the top courses
Any loose or spalled brick in the top courses is reset or replaced so the new crown sits on sound masonry.
Form with overhang and slope
We build a form that projects past the brick faces on all sides and slopes the surface away from the flue so water runs off instead of sitting.
Pour and finish
The crown is poured in a single placement with a bond break around the flue tile so heat expansion does not crack it, and a drip edge is formed on the underside of the overhang.
Cure and seal
Once cured, we apply a breathable water repellent and, where useful, a flexible sealant at the flue joint. A new cap goes on if the old one is damaged.
Full details, options and pricing factors on the main Chimney Crown Rebuild page.
Need chimney crown rebuild in Sammamish?
Call now or request a free quote — we confirm by phone or text.
☎ 206-453-2045 Request a QuoteQuestions
Chimney Crown Rebuild in Sammamish — FAQ
How can I tell if my Sammamish chimney has a crown or a chase cover?
Look at the chimney from the yard. Brick all the way up with a concrete or mortar cap on top means a crown. Siding or stucco on the chimney with a metal lid means a chase cover. If you are not sure, send us a photo or book a free quote; we look from the roof and tell you which repair applies.
Will the new crown stop the water that has been getting into the brick?
It stops the water coming from the top, which is the main source. During the free quote we also check the brick and mortar below the crown; if joints have already opened or the face brick has spalled, we tell you, and we can repoint or replace brick in the same visit so the new crown sits on sound masonry.
How soon can you do chimney crown rebuild in Sammamish?
We confirm a time by phone or text after you request a quote; same-day service is often available for urgent problems in Sammamish and the rest of King County.
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