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Chimney Leak Repair in Seattle, WA
Water stains near the fireplace or a damp smell after rain? We find the entry point on Seattle chimneys and fix it. Free quote.
- Serving Seattle & King County
- Free 2nd-opinion quotes
- Price match + 10–25% discount
Free Chimney Leak Repair Quote in Seattle
We'll confirm a time by phone or text.
Seattle chimney leaks are rarely dramatic. They show up as a brown ring on the ceiling beside the chimney, a musty smell in the firebox after a week of November rain, or paint bubbling on the chimney breast upstairs. By the time a homeowner calls us, the water has usually been getting in for a season or two. On a pre-1970 Seattle brick chimney, the entry point is typically the crown or the mortar joints; on a 1960s-70s rambler it is often flashing where a low-slope roof meets the masonry; on a post-2000 townhome chase it is the cover, the storm collar, or the siding corners. We trace the leak to its actual source before we quote, because sealing the wrong thing only buys a dry month.
Leak calls are the ones we move fastest on. Our office is in Renton, about 20 minutes from most of Seattle, and same-day service is often available. The quote is free, we give a free second opinion on any leak diagnosis you already have, and we price match plus 10-25% off. If the leak comes back, we come back: if you're not happy, we're not done.
Symptoms
Signs Seattle 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
Seattle Conditions
Why this happens in Seattle
Seattle's rain is not heavy; it is persistent. The NOAA normal is 40.34 inches a year spread over roughly 150-156 days with measurable precipitation, and about 73% of it falls between October and March. That means a Seattle chimney can stay wet for weeks at a time, which is exactly the condition that turns a hairline crown crack or a lifted flashing edge into a steady drip. The Brick Industry Association notes that masonry exposed to disproportionate water shows efflorescence, cracking, and spalling, and the top of an exposed Seattle chimney is the most water-loaded masonry on the house.
Shade makes it worse. Western Washington moss spreads fastest October through April on north-facing or tree-shaded surfaces, and Seattle's older neighborhoods are full of mature trees. A mossy chimney top typically stays saturated longer, and moss in open mortar joints holds water right where freeze-thaw does the most damage. Many Seattle leaks we repair start at a joint moss opened up.
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 Seattle?
Call now or request a free quote — we confirm by phone or text.
☎ 206-453-2045 Request a QuoteQuestions
Chimney Leak Repair in Seattle — FAQ
My Seattle chimney only leaks during long rainy stretches, not every storm. Why?
That pattern usually points to masonry saturation rather than a single hole. Seattle brick and crown material absorb water over several wet days, and once the masonry is full, water moves through to the inside. A short storm never saturates it. The fix is typically a crown rebuild plus repointing and a breathable water repellent, not caulk at the flashing. We confirm the source first, and the quote is free.
Can you repair a leaking chimney in Seattle during the winter, or do we wait for dry weather?
We repair through the winter. Flashing, chase cover, and most brick repairs can be done between showers, and we schedule around the forecast. Mortar and crown work needs a dry window to cure, and Seattle gets those even in the wet season. If a leak is active, waiting until summer typically means more ceiling and framing damage, so call and we will say what can be done this week.
How soon can you do chimney leak repair in Seattle?
We confirm a time by phone or text after you request a quote; same-day service is often available for urgent problems in Seattle and the rest of King County.
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