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Kirkland & the Northshore, WA

Chimney Waterproofing on the Northshore, WA

Chimney waterproofing in Kirkland applies a breathable water repellent that keeps the brick from soaking up rain while still letting it dry.

Our price

$285–$795

  • $285–$795 — what we charge for chimney waterproofing
  • $99 plus tax on-site inspection, credited toward an approved quote
  • Written quote before any work starts — photos of every job
  • Local crews
  • Licensed & insured
  • Documented work
  • Written quote first

Book an inspection

Book your $99 inspection

$99 plus tax, deducted when you approve the repair

Service
Town

Book your $99 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 Waterproofing in Kirkland

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October 2026
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What's going on with your chimney?

Pick what you're seeing — we'll point you to the right fix.

What we do

Our services

Sweeping, inspection, relining and masonry — one local crew for the whole chimney.

Ranges shown for orientation — the exact figure is written up on-site, after the inspection.

What chimney waterproofing actually involves

The Western Regional Climate Center counts only four to eight clear or partly cloudy days a month in western Washington's winter, and WeatherSpark gives Kirkland about 6.8 months of wetter weather. Brick that stays damp that long takes on water deep in its pores, and every freeze works on it from the inside. A breathable repellent changes that: rain beads on the surface, and moisture already inside can still escape as vapor. We only apply it to masonry that is already sound, after any cracks or joints have been repaired.

WeatherSpark reports that about 37% of the area within two miles of Kirkland is water, and many chimneys on shoreline lots stand clear of trees and neighboring roofs, with nothing to break the rain. A breathable repellent helps them dry out between storms.

What's included

  • Cleaning of the brick before any treatment
  • Check that joints and crown are sound first
  • Breathable, vapor-permeable water repellent on all exposed faces
  • Care to keep the product off the roof and windows
  • Photos of the treated chimney

Why it matters

In a climate this wet, brick that drinks water will eventually break down. A repellent lets it shed rain for years, which is far less than rebuilding what the water destroys.

Waterproofing is only as good as the masonry under it. A non-breathable coating, like paint or a film-forming sealer, traps moisture in the brick, and trapped water freezes and flakes the faces just as fast as rain does. That is why we use vapor-permeable products and repair first. The winter air here stays humid too: the Western Regional Climate Center puts January relative humidity in the region's interior valleys near 87 percent at 4 a.m. and about 78 percent at 4 p.m., so brick that cannot breathe out will stay wet.

How it works

What to expect with chimney waterproofing

  1. 1

    Check the masonry

    Cracks and bad joints are repaired first; sealing over them would trap water.

  2. 2

    Clean

    Dirt, moss and loose efflorescence come off so the repellent can bond.

  3. 3

    Apply

    The repellent goes on in even coats across every exposed side of the stack.

  4. 4

    Confirm

    Water beading on the treated brick and photos of the finished stack.

  • Licensed& insured Washington chimney contractor

  • 4 communitiesAcross the Northshore, King County

  • $99 plus taxInspection, credited toward an approved quote

  • Every jobDocumented with before-and-after photos

Signs you may need chimney waterproofing

If any of these sound familiar, book the $99 plus tax inspection — credited toward the work if you approve the quote:

  • White streaks (efflorescence) spreading across the brick
  • Brick that still looks wet a day after the rain has moved on
  • Flaking or spalling faces on the upper courses
  • Damp patches or a musty smell near the fireplace inside
  • Moss or algae on the chimney's north side

By town

Chimney Waterproofing in your town

The 4 Northshore communities we serve. Pick yours for local scheduling and the chimney issues we see there.

Before and after

What the work changes

Illustrations of what each repair changes on a typical chimney — not photos of a specific job.

The local chimney sweep crew serving Kirkland, WA

From booking to done

Four steps, each one on paper — so you always know what happens next.

  1. 1

    Book online

    Choose a genuine opening on the crew's calendar. Confirmation is immediate.

  2. 2

    On-site inspection

    Liner, crown, cap, flashing and masonry examined in order — each finding photographed.

  3. 3

    Written quote

    One document, plain numbers, covering only the work your chimney genuinely needs.

  4. 4

    Work done & documented

    The repair is completed, then handed over with before-and-after photos of every item.

Before you let anyone in

What you can verify about us

Every fact below is one you can check yourself before we ever set foot on your roof.

  • Licensed& insured Washington chimney contractor

  • 4 communitiesAcross the Northshore, King County

  • $99 plus taxInspection, credited toward an approved quote

  • Every jobDocumented with before-and-after photos

Chimney service van parked in a Kirkland residential driveway

Serving the Northshore, Kirkland to Woodinville

Chimney Waterproofing — common questions

Does chimney waterproofing really work?

Yes, on sound masonry with a breathable product. It cuts the amount of rain the brick absorbs, which slows freeze damage and staining.

What is your price for waterproofing a chimney?

Our range is $285–$795, depending on the size of the chimney and how much preparation the brick needs.

How often does it need to be redone?

It wears with sun and weather, so plan on reapplying every few years. We check its condition on each annual inspection.

Can you waterproof a chimney with cracks?

Not until the cracks and joints are repaired. Sealing over them would lock water inside the masonry.

Will the treatment change the look of my brick?

A breathable repellent is designed to be close to invisible once dry. The brick keeps its color and texture.

See chimney waterproofing pricing in detailMore chimney questions

Get in touch

Book an inspection

Often booked alongside chimney waterproofing

Chimney Waterproofing and related prices in Kirkland — published rates, 2026
ServicePrice in KirklandWhat that covers
Chimney Waterproofing$285–$795Breathable sealer — reapplied every 3–5 years in this climate
Chimney Sweep$189–$459Full flue swept, Level 1 inspection included
Chimney Inspection$99 plus taxLevel 1 visual; Level 2 adds a full camera scan
Chimney ReliningFrom $1,900Full-length stainless liner, sized to the appliance

Ranges are what these jobs are quoted at in Kirkland. 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.

Ready to book your chimney waterproofing?

Licensed local crews, a $99 on-site inspection credited toward repairs, and a written quote before any work. Book a real open slot on our calendar.

Call (425) 793-2992Book