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Chimney Masonry Repair in Seattle, WA
Spalled brick, crumbling mortar, loose top courses. We restore the brick and mortar that hold your chimney together. Free quote, price match plus 10-25% off.
- Free 2nd-opinion quotes
- Price match + 10–25% discount
- Same-day service often available
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Chimney masonry repair is the work of restoring the brick and mortar that make up the chimney itself: cutting out and replacing bricks whose faces have flaked off (spalling), rebuilding mortar that has turned to sand, relaying the top few courses when they have loosened under a failed crown, and repairing cracks that run through the brick rather than along the joints. It sits between two of our other services: tuckpointing, which only grinds and repacks the joints, and a chimney rebuild, which takes the stack down and builds it again.
Most brick chimneys we see in Seattle, Tacoma, Shoreline and Edmonds are original to homes built before 1970, which makes them 50-plus years old in one of the wettest climates in the country. The brick face goes first, usually on the weather side and near the top. Masonry repair catches the chimney while the core is still sound, so you replace a few dozen bricks instead of the whole stack.
We give a free quote and a free second-opinion quote if another company has already priced the work. We price match and take a further 10-25% off.
Symptoms
Signs you need chimney masonry repair
- Brick faces popping off in flakes, leaving a rough, pitted, lighter-colored surface
- Pieces of brick or mortar on the roof, in the gutter, or at the base of the chimney
- Mortar that can be scraped out with a fingernail or has washed out to a groove
- A step crack running diagonally through bricks and joints
- The top several courses of brick are loose, tilted, or shifted off line
- White powdery efflorescence on the brick face that keeps coming back
- Bricks that sound hollow when tapped
Common causes
- Rain soaking into the brick through a cracked crown or open joints, then freezing and pushing the face off
- Mortar that has lost its binder after decades of wetting and drying
- Soft, low-fired brick that absorbs more water than it was ever meant to hold
- A crown without an overhang, which drains rainwater straight down the brick face
- Flue gas moisture and acids migrating through an unlined or cracked-tile flue into the brick
- Past repairs made with hard modern mortar that forced movement into the brick instead of the joint
How It Works
Our chimney masonry repair process
We inspect the masonry in three passes: what is visible from the ground and roof, what a probe and hammer tell us about the brick behind the face, and what is happening inside the flue, since spalling on the outside often has a flue problem behind it. We mark every brick that has to come out, sound the courses to find where the loose section ends, and check the crown and flashing so the repair is not undone by the same water next winter. You get a written quote with the brick count, the joint work, and any crown or flue items priced separately.
Free quote and brick map
We photograph the chimney, mark the spalled and cracked bricks, sound the upper courses, and write a quote that lists how many bricks are replaced and how much joint work is included.
Match the brick and mortar
We source brick close to the original in size, color and hardness, and mix a mortar softer than the brick so future movement goes into the joint, not the brick.
Cut out and replace
Damaged bricks are cut out to full depth without disturbing their neighbors, the cavity is cleaned and dampened, and the new brick is set in full mortar beds.
Relay loose courses
Where the top courses have loosened, we take them down to a solid bed, reuse sound bricks, and relay them level and plumb.
Repack surrounding joints and protect the top
Eroded joints around the repair are ground and repacked, and if the crown let the water in we repair it on the same visit when possible.
Options
Repair and service options
Masonry repair is sized to how far the damage has spread:
- Spot brick replacement: cut out and replace individual spalled or cracked bricks, usually on the weather side near the top. The most common job.
- Relay upper courses: when the top three to eight courses have loosened under a failed crown, we take them down, relay them, and pour a new crown. See crown rebuild, starting at $299.
- Masonry repair plus tuckpointing: brick replacement combined with grinding and repacking joints across the whole face. If joints are the only problem, see tuckpointing.
- Crack stitching: a step crack through the brick is opened, broken bricks replaced, and the crack line tied back together.
- When repair is not enough: if most of the bricks above the roof have failed or the stack leans, a partial rebuild is usually cheaper than brick-by-brick repair. We will say so.
After any masonry repair we recommend a breathable water repellent once the mortar has cured.
Pricing
What affects the price
- Number of bricks that need to be cut out and replaced
- Whether the upper courses must be taken down and relaid
- How closely the replacement brick must match a period home's original
- Amount of joint grinding and repacking around the repair
- Chimney height, roof pitch and access for staging
- Whether the crown, cap or flue also needs work to stop the water
- Distance from Renton for outlying Pierce, Snohomish and Kitsap addresses
Every chimney is different, so you get a written quote after we look at the system. Ask about our price match and free second-opinion quote.
Safety & Seattle Conditions
Safety considerations
Loose bricks near the top of a chimney can come down without warning, especially in wind or during a freeze. If you see bricks on the roof or the ground, keep people and cars away from that side of the house and call us. Please do not go on the roof to look; we inspect for free and send photos.
Spalling that is worst on one side, or efflorescence inside the house, can mean flue gases are getting into the brick. Stop using the fireplace until we have looked at the flue. NFPA 211 recommends an annual chimney inspection, which is when masonry problems are usually caught small.
Seattle & Puget Sound conditions
The Brick Industry Association's technical notes describe the mechanism plainly: water in saturated brick pores expands when it freezes, and repeated freeze-thaw of saturated masonry causes cracking, crazing, spalling and disintegration. Seattle gives brick both halves of that equation. Sea-Tac's normal annual rainfall is 40.34 inches, with about 73% of it falling October through March, and the city sees roughly 60 days a year at or below 32F while winter lows average around 37F, so wet brick crosses the freezing line again and again.
Seattle's median home was built in 1976, Tacoma's in 1967 and Shoreline's in 1969, so many of the brick chimneys we repair have been through fifty or more of those winters.
Our Work
Chimney Masonry Repair in action
Get a free quote on brick and mortar repair
Send a photo of the spalling or call 206-453-2045. Free quote, free second opinion, price match plus 10-25% off. If you're not happy, we're not done.
☎ 206-453-2045 Request a QuoteQuestions
Chimney Masonry Repair FAQ
What is the difference between masonry repair, tuckpointing and a rebuild?
Tuckpointing only treats the mortar joints: grinding out failed mortar and packing in new. Masonry repair replaces damaged bricks and relays loose courses, usually with joint work around the repair. A rebuild takes part or all of the chimney down and lays it again. We quote the smallest option that will actually hold.
Can spalled bricks be patched instead of replaced?
Not in a way that lasts. Once the fired face of a brick is gone, the soft core behind it absorbs water faster than the face ever did, and a surface patch traps that water. The durable fix is to cut the brick out to full depth and set a new one. On most chimneys that is a few dozen bricks, not the whole stack.
Will the new brick match my old chimney?
We get it as close as we can by sampling a removed brick and sourcing the nearest available unit. A fresh repair is visible up close for the first year or two and weathers in over time. If an exact match matters, for example on a street-facing chimney of a period home, tell us and we will source accordingly.
Why does the mortar mix matter?
Mortar should be softer than the brick it holds. Old brick is relatively soft, and a hard modern mortar transfers every bit of movement and freeze-thaw stress into the brick, which then spalls. We mix a mortar compatible with the brick so the joint does the flexing and stays the sacrificial part, which is what it is designed to be.
Is masonry repair worth it on an old chimney, or should I rebuild?
If the core is sound and the damage is confined to scattered bricks or the top few courses, repair costs a fraction of a rebuild and buys many years. If the damage runs through most of the stack above the roof, or the chimney leans, a partial rebuild is the better value. The free quote visit settles that honestly, with photos.
How much does brick chimney repair cost in Seattle?
It depends mostly on the brick count and whether the top courses have to be relaid, so we quote on site rather than guess by phone. The quote is free and itemized, including any crown work. If you have another written quote, we match it and take 10-25% off.
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