Bellevue Chimney Pros logo
Chimney Waterproofing in Mercer Island, King County, WA — chimney waterproofing being applied to brickwork, built for salt-air shore conditions

Mercer Island, King County

Chimney Waterproofing in Mercer Island, WA

From one end of Mercer Island to the other, we handle chimney waterproofing. Mercer Island — an island city in the middle of Lake Washington in King County on Lake Washington — has plenty of chimneys that need attention, thanks to mid-century and high-value waterfront homes.

$285–$795

  • Licensed & insured
  • Free on-site inspection
  • Every job documented

Book your free inspection

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

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

Chimney Waterproofing in Mercer Island

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

No openings that day — please try another date.

Our crews know King County homes and what the local climate does to a chimney — so in Mercer Island we fix the cause, not just the symptom.

Book your free inspection

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

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

Chimney Waterproofing in Mercer Island

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

No openings that day — please try another date.

Chimney Waterproofing in Mercer Island, King County, WA — chimney waterproofing being applied to brickwork, built for salt-air shore conditions

What's included

Your chimney waterproofing in Mercer Island

Every chimney waterproofing we do in Mercer Island includes:

  • A breathable sealant that lets masonry release trapped moisture
  • Cracks and joints treated before the application begins
  • Coverage of the entire chimney, crown to base
  • Protection rated to last 5–10 years
  • Photographs of the treated masonry on completion

Why Mercer Island homes need it

Lakeside air off Lake Washington keeps Mercer Island masonry wet well into spring. Paired with mid-century and high-value waterfront homes, that is why so many Mercer Island homeowners stay ahead of chimney waterproofing instead of waiting for a leak.

See the difference

Chimney Waterproofing — before & after

Before — chimney waterproofing: Rain-soaked, stained brickwork treated with a breathable water repellent that lets it dry.
Before
After — chimney waterproofing: Rain-soaked, stained brickwork treated with a breathable water repellent that lets it dry.
After

Rain-soaked, stained brickwork treated with a breathable water repellent that lets it dry.

Representative example of a typical chimney waterproofing — 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 a free on-site inspection in Mercer Island — pick a real open slot, get a written quote, and see before-and-after photos of every fix.

Chimney Waterproofing in Mercer Island — common questions

How much does chimney waterproofing cost in Mercer Island?
$285–$795 is the typical range. Your exact Mercer Island price is set on-site after a free inspection — no surprises.
Why do Mercer Island chimneys need chimney waterproofing more often?
Being near Lake Washington plus mid-century and high-value waterfront homes put extra stress on Mercer Island chimneys, so staying ahead of chimney waterproofing saves money long-term.
Is it worth waterproofing my chimney?
If your chimney's masonry is currently in good, sound condition, then unequivocally yes. Waterproofing is a highly valuable investment that actively prevents the freeze-thaw water damage so common in Bellevue, which otherwise leads to costly repointing and full structural rebuilds.

More in Mercer Island

Explore Mercer Island

Chimney Waterproofing nearby

Nearby towns we serve