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Chimney Repair, Sweep & Inspection in Black Diamond, WA
Chimney inspection, sweeping and masonry repair in Black Diamond, roughly 30 minutes from Renton on the Maple Valley Highway.
- Serving Black Diamond & King County
- Free 2nd-opinion quotes
- Same-day service often available
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Seattle Chimney Repair Services repairs and sweeps chimneys in Black Diamond, WA, ZIP code 98010. Crews come from our Renton office, Sunday to Friday, 8 AM to 6 PM. A sweep and inspection is a flat $299. Crown repair runs $299 to $2,500, chase covers $299 to $1,500 and flashing repair $299 to $3,000, with a written quote before any work starts. Call 206-453-2045.
Black Diamond is at the southeast corner of King County where SR 169 leaves Maple Valley and climbs toward the Green River Gorge and the Cascade foothills. From Renton it is one road the whole way: the Maple Valley Highway out of downtown, along the Cedar River, through Maple Valley and on to the old coal town. Off peak the drive runs about 30 minutes, longer on a Friday afternoon.
Housing here comes in three generations. The historic core along Railroad Avenue and in Morganville has miners' houses from the 1880s through the 1920s with brick chimneys and unlined flues. The lots around Lake Sawyer filled in from the 1960s through the 1990s with a mix of masonry and framed chases. Ten Trails, selling since 2018, is mostly framed chases with metal chase covers and factory-built fireplaces. Liner replacement, crown repair and chase cover work are the common jobs.
Call 206-453-2045 or request a quote online and we confirm a time by phone or text. A sweep and inspection is a flat $299; repairs are quoted in writing after the inspection.
Services in Black Diamond
Chimney & fireplace services in Black Diamond, WA
Local Conditions
Chimney problems we see in Black Diamond
Black Diamond sits near 600 feet of elevation on the first rise of the Cascade foothills, so it gets more rain and more nights below freezing than Renton does 30 miles downhill. Freeze-thaw is the main enemy of the old coal-era chimneys: water gets into hairline cracks in lime mortar, freezes, and opens the joint wider each winter until bricks loosen at the top courses. Crowns on those chimneys are often mortar wash that has broken up. Around Lake Sawyer the tree cover keeps roofs damp and mossy, which holds water against flashing. In Ten Trails the chases are new but exposed, and wind-driven rain finds any chase cover seam or storm collar that was not sealed at construction.
Areas we cover
Areas we cover in Black Diamond
We serve the historic downtown around Railroad Avenue and Baker Street, Morganville, the neighborhoods on the north, east and south shores of Lake Sawyer, Ten Trails, and the rural lots toward Ravensdale and the Green River Gorge. The primary ZIP code is 98010. Maple Valley, Ravensdale and the Lake Sawyer Road corridor are on the same route.
Neighborhoods & Scheduling
Scheduling & arrival in Black Diamond
Black Diamond is about 30 minutes from Renton on SR 169, and we pair it with Maple Valley, Ravensdale and Enumclaw stops. A sweep and inspection takes roughly an hour. Repairs are not done on the spot; you receive a written quote after the inspection and choose whether to book them.
Need a chimney sweep or repair in Black Diamond?
Call now or request a free quote. We confirm every appointment by phone or text.
☎ 206-453-2045 Request a QuoteQuestions
Black Diamond chimney service FAQ
My house in old Black Diamond was built in the 1910s. Can the original chimney still be used?
Often yes, but not without checking the flue. Coal-era chimneys near Railroad Avenue were usually built without a clay liner, and a century of freeze-thaw at this elevation leaves gaps in the mortar. A camera inspection shows whether a stainless liner is needed, which runs $1,200 to $4,500.
We just bought in Ten Trails. Does a new home need a chimney inspection?
It is worth doing once, because the fireplaces there are factory-built units inside framed chases and the chase cover on top is the only thing keeping rain out of the framing. We check the cover, the storm collar and the cap seals, and a sweep and inspection is a flat $299.
Why does the brick on my Lake Sawyer chimney flake off in sheets?
That is spalling. Water soaks into the brick, freezes on the cold nights Black Diamond gets, and pops the face off. It usually starts from a failed crown or missing cap. Masonry and tuckpointing repair runs $299 to $2,500 depending on how many courses are affected.
How far up SR 169 do you go?
We cover all of Black Diamond including the rural addresses toward Ravensdale and the Green River Gorge, plus Enumclaw. Drive time from Renton is about 30 minutes to the town center and a bit more to the outlying lots.
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