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Chimney Repair in Mercer Island, King County, WA — masonry repair on a brick chimney, built for salt-air shore conditions

Mercer Island, King County

Chimney Repair in Mercer Island, WA

Chimney repair on Mercer Island starts at $425, with diagnosis and a written price before any work begins. The island's combination of heavy tree cover and constant humidity produces a specific repair profile — crown deterioration under moss, and flashing leaks under shaded, slow-drying roofs.

From 425

  • Licensed & insured
  • $49 inspection, credited to repairs
  • Every job documented

Book your $49 inspection

Pick a real open slot on our crew's calendar — takes about a minute.

  • No payment to book
  • Written on-site quote
  • Photos of every job
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Chimney Repair in Mercer Island

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August 2026
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The island's mid-century core and its remodelled waterfront properties both carry masonry chimneys built when the standard detail assumed the stack would dry out between rains. Under mature firs and maples, on a lake-surrounded island, it often does not.

Book your $49 inspection

Pick a real open slot on our crew's calendar — takes about a minute.

  • No payment to book
  • Written on-site quote
  • Photos of every job
  1. 1
  2. 2
  3. 3
  4. 4

Chimney Repair in Mercer Island

Pick a date
August 2026
Su
Mo
Tu
We
Th
Fr
Sa
Open times

No openings that day — please try another date.

Chimney Repair in Mercer Island, King County, WA — masonry repair on a brick chimney, built for salt-air shore conditions

What's included

Your chimney repair in Mercer Island

Every chimney repair we do in Mercer Island includes:

  • Diagnosis first, written price before any work
  • Moss removal with crown assessment underneath
  • Crown repair and rebuild
  • Flashing repair and leak tracing
  • Firebox and refractory panel repair

Why Mercer Island homes need it

Moss is the mechanism people underestimate. It roots into the crown and the top mortar joints and holds water there permanently, so the masonry never gets a dry spell. Every freeze then works on saturated material. By the time moss is visible from the ground, the crown underneath is usually already cracked. The second recurring job is flashing on shaded north-facing roof slopes, where moss and debris hold water against the joint for months at a time.

See the difference

Chimney Repair — before & after

Before — chimney repair: Spalled courses and washed-out joints rebuilt into a stack that sheds rain again.
Before
After — chimney repair: Spalled courses and washed-out joints rebuilt into a stack that sheds rain again.
After

Spalled courses and washed-out joints rebuilt into a stack that sheds rain again.

Representative example of a typical chimney repair — not a specific customer job. We add photos of our own completed the Eastside projects as we finish them.

Chimney service for shore homes in Mercer Island, King County, WA

Mercer Island, King County

Chimney care built for Mercer Island homes

Book your $49 on-site inspection in Mercer Island — pick a real open slot, get a written quote, and see before-and-after photos of every fix.

Prices

Chimney Repair prices in Mercer Island

What this work is quoted at for Mercer Island homes — the exact figure comes from the $49 on-site inspection — credited toward the work.

Chimney Repair and related prices in Mercer Island — published rates, 2026
ServicePrice in Mercer IslandWhat that covers
Chimney RepairFrom 425Masonry repair — brick and mortar, scoped after diagnosis
Chimney Sweep189–449Full flue swept, Level 1 inspection included
Chimney Inspection$49 flatLevel 1 visual; Level 2 adds a full camera scan
Chimney ReliningFrom 1,895Full-length stainless liner, sized to the appliance
Chimney Cap Installation235–845Stainless 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 $49 inspection (credited toward the job if you go ahead), and you approve it before any work starts.

Chimney Repair in Mercer Island — common questions

How much does chimney repair cost on Mercer Island?
From $425, depending on what the diagnosis finds. Moss removal is often bundled with the crown work rather than billed as a separate visit.
Is moss on the chimney actually damaging it?
Yes. Moss holds water against the crown and the upper mortar joints so the masonry never dries, and every freeze then works on saturated material. When moss is visible from the ground, the crown underneath is usually already cracked.
The leak only appears in heavy rain — what does that point to?
Usually flashing rather than the flue. On the island's shaded roof slopes, debris and moss hold water against the chimney-to-roof joint long enough for it to find any gap. We trace it before quoting.

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Call (425) 380-8866Book