Renton & South King County, WA
Masonry repair in Renton renews the crown at the top of a brick chimney and the mortar joints below it, the two places where rain gets in first.
Our price
From $425
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 — we'll point you to the right fix.
What we do
Sweeping, inspection, relining and masonry — one local crew for the whole chimney.
A chimney inspection in Renton documents the state of the flue, liner, crown, cap and flashing in photos, so the next fire is lit on evidence instead of habit.
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A chimney sweep in Renton brushes a season of soot and creosote out of the flue, then hands you photographs of the cleaned walls so their condition is yours to judge.
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Chimney repair in Renton is structural work: resetting or replacing broken brick, rebuilding failed courses, and taking a stack down to the roofline when it can no longer be saved.
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Chimney relining across southeast King County replaces a cracked or oversized flue lining with a stainless steel liner whose diameter is set by the appliance it serves.
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Chimney cap installation in Renton fits a stainless steel cover and screen over the flue, closing the opening to rain, fir needles, nesting animals and stray embers.
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Gas fireplace service across southeast King County covers cleaning and testing of burner, pilot, glass and vent on gas fireplaces, inserts and log sets before the heating season leans on it.
Learn moreRanges shown for orientation — the exact figure is written up on-site, after the inspection.
Renton knows brick. HistoryLink lists brick and tile plants among the industries of the early town, fed by clay from the surrounding hills. A century on, the weak points of a brick chimney are unchanged: the mortar, which is meant to be softer than the units it holds, and the crown, which is the stack's only roof. Both face a wet season of nearly seven months. We cut eroded joints back to firm mortar and repoint them, and we seal or recast a cracked crown so that water leaves the chimney by the outside.
Snow lingers longer at the eastern end of our territory. Snoqualmie's hazard annex recalls the winter of 2018/2019, when several feet of snow took about a week to clear, and Newcastle's says many residents of its hilly eastern half could not leave home for over a week in the 2019 storms. A crown buried under snow that long feeds meltwater into every flaw it has. If yours was marginal going into a winter like that, have it looked at in spring.
Section R1003.9.1 of Washington's 2021 residential code describes the crown a masonry chimney is supposed to have: a cap in stone, metal or concrete with enough slope to shed water, a drip edge at its rim, and, around each flue liner, a bond break sealed with caulk. What we often find instead is a level smear of mortar, already cracked.
Frost finishes what rain starts. Moisture sitting in a hairline crack swells as it freezes and widens the crack for the next shower. Long-record weather stations show how the exposure rises toward the foothills: the Western Regional Climate Center's summaries log roughly 60 days a year with a minimum at or below 32°F at the Kent station on the valley floor, 64.5 at Snoqualmie Falls and about 80 at Landsburg, up the Cedar River. Renton's hazard annex adds that a run of several freezing days is not unusual in winter, while prolonged hard freezes in the 20s or below are rare. Open joints let that water reach the liner and the framing next to the stack.
How it works
Failed joints and crown defects are marked on photos so the scope is visible.
Soft mortar and broken crown material are removed until the tool meets something sound.
Joints are packed and tooled; a recast crown is shaped with fall and an overhang.
Fresh work is shielded from rain until it has set, then photographed.
Licensed& insured Washington chimney contractor
4 communitiesRenton, Newcastle, Snoqualmie and Maple Valley
$99 plus taxInspection, credited toward an approved quote
Every jobDocumented with before-and-after photos
If any of these sound familiar, book the $99 plus tax inspection — credited toward the work if you approve the quote:
By town
The 4 South King County communities we serve. Pick yours for local scheduling and the chimney issues we see there.
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.
Before you let anyone in
Every fact below is one you can check yourself before we ever set foot on your roof.
The on-site inspection is $99 plus tax, and it is credited toward the work when you approve the written quote. Booking online asks for no card.
You get the price in writing, for the work your chimney actually needs, and nothing starts until you have approved it.
Each item we inspect or repair is photographed before and after, so the condition of your chimney is on record.
Call (425) 979-2035 — a local South King County number, the same one on every page of this site.
Licensed& insured Washington chimney contractor
4 communitiesRenton, Newcastle, Snoqualmie and Maple Valley
$99 plus taxInspection, credited toward an approved quote
Every jobDocumented with before-and-after photos
Serving Renton, Newcastle, Snoqualmie & Maple Valley
Expect from $425 for this work. A crown with only fine cracks to seal is the modest job; casting a new crown or repointing every face of a tall stack is the substantial one.
Homeowners and trades use the two words for one job: old mortar is cut out of the joints to a consistent depth and new mortar is pressed in. No brick is replaced.
Thickness and soundness decide. A solid crown with surface cracks takes a flexible sealant well. One that is thin, level, breaking up or flush with the brick should be recast to the shape the code describes.
Scope. Masonry repair deals with joints and crown. Once bricks are broken, courses have moved or the stack is out of plumb, it is structural and falls under chimney repair, with its own quote.
The dry one. WeatherSpark puts July rainfall in Renton at about 0.8 inches against about 8.0 in November, and mortar cures best with neither rain nor frost on it.
Yes. You pay $99 plus tax for the visit; approve the masonry quote and we take that sum off it.
See masonry repair (crown / repointing) pricing in detailMore chimney questions
Chimney repair in Renton is structural work: resetting or replacing broken brick, rebuilding failed courses, and taking a stack down to the roofline when it can no longer be saved.
Learn moreChimney cap installation in Renton fits a stainless steel cover and screen over the flue, closing the opening to rain, fir needles, nesting animals and stray embers.
Learn more
Chimney flashing repair in Renton reseals or replaces the sheet metal where the stack meets the shingles, the joint behind most chimney-side roof leaks.
Learn more| Service | Price in Renton | What that covers |
|---|---|---|
| Masonry Repair (Crown / Repointing) | From $425 | Crown work, repointing and tuckpointing by surface area |
| Chimney Repair | From $375 | Masonry repair — brick and mortar, scoped after diagnosis |
| Chimney Cap Installation | $265–$850 | Stainless cap fitted; multi-flue and custom at the top |
| Chimney Flashing Repair | $330–$1,500 | Reseal at the low end, full flashing replacement at the high |
Ranges are what these jobs are quoted at in Renton. 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.
Licensed local crews, a $99 on-site inspection credited toward repairs, and a written quote before any work. Book a real open slot on our calendar.
