Mercer Island, King County
Chimney repair on Mercer Island starts at $425 and scales with what the diagnosis finds, from a single cracked crown to a stack that needs rebuilding above the roof. We diagnose before we quote, we quote in writing, and the work starts only after you approve it.
Typical investment
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 at your Mercer Island home — we'll point you to the right fix.
What we do
The same crew, the same written quote — for Mercer Island homes.
Level 1 or Level 2 inspection, with a camera scan where warranted
Learn more
Complete sweep of the flue and firebox, protected by drop cloths and HEPA filtration
Learn more
A stainless-steel or ceramic liner run the full height of the flue
Learn more
A stainless cap fitted to your flue's exact dimensions
Learn more
Cleaning of the burner, pilot and valve assembly
Learn more
Crown recast — or rebuilt outright where the damage demands it
Learn moreRanges shown for orientation — the exact figure is written up on-site, after the inspection.
The island's population jumped from about 4,500 in 1950 to almost 13,000 by 1960, and the city incorporated on July 5, 1960. Homes from that decade are now past sixty years old, and a chimney that age has usually had its crown, mortar joints and firebox through a lot of wet winters without much attention.
Lake Washington rings the island; King County lists it as the state's second-biggest natural lake. With roughly half the city's area under water, open fetch lies in every direction from a rooftop.
Western Washington's strongest winds come mostly from the south or southwest in late fall and winter, the Western Regional Climate Center reports. On a repair visit, that weather-facing side is where we most often find the worst mortar erosion and the first loose bricks.
Left uncontrolled, moss shortens a roof's service life, WSU Extension says, and it grows best in fall, winter and spring on surfaces that stay wet. A chimney crown shaded by tall trees can stay wet for most of that time.
The moss itself is not the repair. The repair is the cracked crown it was hiding. We remove it by hand, fix the masonry underneath, and point out any branches worth trimming, which OSU Extension calls the best long-term control.
Every chimney repair we do in Mercer Island includes:
Smoke coming back into the room, or a smell that won't go? Book the inspection first.
Book nowRepairs here tend to fall into three groups. Water damage comes first: a cracked crown or open joints let rain into the brick, and the damage spreads downward. Next is the firebox, where heat has opened the joints between firebrick. Last is movement: brick that has shifted or separated from the house, which on this island deserves a careful look because of what lies under it.
According to the City of Mercer Island, the Seattle fault zone includes at least two strands that cross the island. The fault last ruptured around 900 AD in a quake of roughly magnitude 7.0 to 7.5, Washington DNR reports.
FEMA calls masonry chimneys on wood-frame houses extremely vulnerable to shaking, with older unreinforced stacks and tired mortar the most at risk. When we repair a chimney here, we look at how it is attached to the house as well as at the damaged brick itself.
We trace the problem to its source first. A stain on the ceiling might be a crown, a flashing joint or a cracked flue tile, and each has a different fix.
You get an itemized quote with photos of each defect, so you can see why a line item is there before deciding whether to go ahead.
Work is scheduled for a dry window where possible. Roof surfaces and landscaping below the stack are protected while masonry work is under way.
Before we leave, we photograph the finished repair and walk you through what was done and what, if anything, to watch over the next few seasons.
The Chimney Safety Institute of America puts it bluntly: water hurts masonry chimneys more than fire does. Its short list of defenses is a cap, a sound crown, tight flashing and a water repellent.
In western Washington, the wet season opens in October and peaks in winter, and January humidity usually stays between 78 and 87 percent. Brick that soaks up water through those months breaks down from the inside, which is why a repair here often includes fixing the way water got in, not just the damage it caused.
What this work is quoted at for Mercer Island homes — the exact figure comes from the $99 on-site inspection, credited toward the work.
| Service | Price in Mercer Island | What that covers |
|---|---|---|
| Chimney Repair | From $425 | Masonry repair — brick and mortar, scoped after diagnosis |
| Chimney Sweep | $189–$449 | Full flue swept, Level 1 inspection included |
| Chimney Inspection | $99 plus tax | Level 1 visual; Level 2 adds a full camera scan |
| Chimney Relining | From $1,895 | Full-length stainless liner, sized to the appliance |
| Chimney Cap Installation | $235–$845 | Stainless cap fitted; multi-flue and custom at the top |
Ranges are what these jobs are quoted at in Mercer Island. 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.
Mercer Island is an island city in the middle of Lake Washington, on Lake Washington, with mid-century and high-value waterfront homes.
Mercer IslandKing County, WA · 47.571, -122.222
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.
From $425. The final number depends on how much masonry is involved and how hard it is to reach. You see the full price in writing before any work is scheduled.
Often not. FEMA's guidance on quake-damaged masonry chimneys says repointing alone does not improve seismic performance, and it favors partial or full rebuilding with a metal flue in light-frame construction. We explain both paths when damage points that way.
FEMA says building permits are always required for the chimney reconstruction its advisory describes, and Mercer Island processes single-family mechanical permits online through MyBuildingPermit.com. We tell you when a job crosses that line.
A $99 on-site inspection, a written quote before any work, and photos of every item we touch.
