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Chimney Leak Repair in Shoreline, WA
Brown stains on the chimney breast of a Shoreline rambler? We find the entry point and fix it. Free quote, often same-day.
- Serving Shoreline & King County
- Free 2nd-opinion quotes
- Price match + 10–25% discount
Free Chimney Leak Repair Quote in Shoreline
We'll confirm a time by phone or text.
Leaks on Shoreline chimneys come from the top down. On a brick stack from the 1950s or 60s, the usual entry points are a cracked or missing crown, an uncapped flue that catches rain directly, mortar joints that have washed out, and flashing that was installed with the original roof and has been re-roofed over once or twice since. Low-slope rambler roofs, common across Shoreline, make flashing leaks worse because water sits against the chimney instead of running past it. Inside, the leak shows up as brown stains on the chimney breast, efflorescence (white powder) on the brick, a damp smell from the firebox, or peeling paint on the ceiling beside the stack.
We don't guess. We water-test from the top, one component at a time, to find the actual entry point, then fix that: a new crown (starting at $299), a cap, tuckpointing, or a flashing reseal or replacement. The quote is free, we give a free second-opinion quote if a roofer has already blamed the chimney, and we price match plus 10–25% off. Same-day service is often available for active leaks in Shoreline.
Symptoms
Signs Shoreline 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
Shoreline Conditions
Why this happens in Shoreline
Shoreline's chimneys are typically as old as the houses, with a median build year of 1969, and decades of rain is what opens them up. Sea-Tac's normals put 40.34 inches a year on these stacks, and November through January alone averages about 17.8 inches, roughly 44% of the annual total; that is when a crown crack that weeps in summer turns into a steady drip. Brick and mortar absorb water, and brick industry guidance notes that masonry exposed to disproportionate water shows efflorescence, cracking and spalling, the same symptoms Shoreline homeowners describe.
Shade makes it worse. Pacific Northwest moss grows fastest October through April on north-facing and tree-covered surfaces, and moss on a chimney shoulder or along flashing keeps the masonry wet after the rain stops. The fix is sealing the top of the system, and the best time to do it is before the October rains.
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 Shoreline?
Call now or request a free quote — we confirm by phone or text.
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Chimney Leak Repair in Shoreline — FAQ
There's white powder on the brick above my Shoreline fireplace. Is that a leak?
Almost always, yes. That powder is efflorescence, minerals carried out of the brick by water moving through it, which means water is getting into the stack, usually from the crown, an open flue or a joint. It isn't harmful by itself, but what's causing it is. We trace the source with a water test and quote the fix for free.
My roofer replaced the flashing and the Shoreline chimney still leaks. Now what?
Call us for a free second-opinion quote. Flashing gets blamed first because it's visible, but on mid-century brick the crown, the cap and the joints leak at least as often, and water from those runs down inside the stack and appears in the same place. We test each component separately and fix the one that's actually leaking, and price match plus 10–25% off.
How soon can you do chimney leak repair in Shoreline?
We confirm a time by phone or text after you request a quote; same-day service is often available for urgent problems in Shoreline and the rest of King County.
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