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Chimney Leak Repair in Renton, WA
Water coming in around a Renton fireplace? We are based in downtown Renton and can often look at it today. Free quote.
- Serving Renton & King County
- Free 2nd-opinion quotes
- Price match + 10–25% discount
Free Chimney Leak Repair Quote in Renton
We'll confirm a time by phone or text.
A leaking chimney in Renton usually announces itself in November: a stain spreading across the ceiling beside the fireplace, paint bubbling on the chimney wall, or a wet smell in the room above a chase. Because we are headquartered at 1202 N 10th Pl Unit 1509 in downtown Renton, leak calls here are the ones we can answer fastest, often while it is still raining, which is the best time to find the source. On the 1950s-70s brick chimneys in the Highlands, Kennydale and around downtown, the water is typically coming through a cracked crown, open mortar joints on the weather face, or old step flashing. On the 1990s-2010s prefab chases in Fairwood, Benson and Cascade, it is almost always the chase cover: rusted through, sagging and pooling, or never sealed at the flue collar.
We find the actual entry point rather than caulking the whole top and hoping. The quote is free, and the fix is priced by what is wrong: crown rebuilds start at $299, chase covers at $299, with flashing and repointing quoted on site. Bring any other bid and we price match it and take 10-25% off. If the stain comes back, we are not done; we come back at no charge.
Symptoms
Signs Renton homeowners notice
- Water pooling in the firebox or dripping from the damper after rain
- Brown stain on the ceiling or wall beside the chimney that grows during the wet season
- White crusty efflorescence on the brick inside or outside
- Rust streaks down the siding of a framed chimney or down the face of the brick
- Spalling brick faces or crumbling mortar near the top of the chimney
- Damp firebox walls even when it has not rained for a day or two
Renton Conditions
Why this happens in Renton
Renton gets the full Puget Sound wet season. The Sea-Tac 1991-2020 normal, measured just west of the city, is 40.34 inches a year, and about 73% of it lands between October and March. November is the wettest month at 6.31 inches, December 5.72 and January 5.78, which is why leak calls cluster in those three months. A chimney does not need a large opening to pass that much water; a hairline crown crack or a pinhole rust spot in a chase cover sees rain on most of the roughly 150-156 wet days a year.
What turns a small leak into a big one is the winter temperature pattern. Lows average 37-38F, so water in a crack freezes overnight and thaws the next day many times a season, and the Brick Industry Association notes that saturated masonry under repeated freeze-thaw cracks, spalls and disintegrates. On the heavily treed lots of Fairwood and the East Renton Highlands, moss, which spreads fastest October through April on shaded surfaces, keeps the crown or cover wet even between storms.
How It Works
Our chimney leak repair process
Map the symptom
We ask where the water shows up, when, and how long after rain, because each entry point leaves a different signature.
Check the top
Crown, cap and chase cover are inspected first, since they are the most common leak sources and the fastest to rule in or out.
Check the roofline and masonry
Flashing, mortar joints, spalled brick and the flue itself are checked, including for condensation that mimics a leak.
Fix in the right order
We repair the entry points that are actually leaking, from the top down, and leave the sound ones alone.
Water-test and follow up
Where possible we run water on the repair to confirm it is dry, and if the next storm proves us wrong, we come back at no charge.
Full details, options and pricing factors on the main Chimney Leak Repair page.
Need chimney leak repair in Renton?
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Chimney Leak Repair in Renton — FAQ
The ceiling next to my fireplace in the Renton Highlands is stained. Is it the chimney?
Probably, and we can tell you for sure. Staining at the chimney wall or the ceiling beside it usually traces to the crown, flashing, cap or, on a prefab, the chase cover. We come out for a free quote, check all of them, and if it turns out to be a roof or gutter problem we will say so instead of selling chimney work.
Can you fix a chimney leak in Renton while it is still raining?
We can find it while it is raining, which is the easiest time, and often do a temporary cover the same visit. Crown pours, sealants and flashing work need a dry surface, so we schedule the permanent repair for the next dry window. Being based in downtown Renton, we can usually get that done within days.
How soon can you do chimney leak repair in Renton?
We confirm a time by phone or text after you request a quote; same-day service is often available for urgent problems in Renton and the rest of King County.
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