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Carnation, King County

Chimney Waterproofing in Carnation, WA

Waterproofing a Carnation chimney runs $285 to $790. Stack height, the number of faces to treat and how much cleaning the brick needs first explain the gap between those two figures. The product is a breathable water repellent, not a paint or a film, and it goes on only after the masonry has been checked and any open joints closed.

Typical investment

$285–$790

  • Serving Carnation and the rest of our King County territory
  • $99 plus tax on-site inspection, credited toward an approved quote
  • Usually on the same route as Redmond, Sammamish, Duvall
  • 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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  3. 3
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Chimney Waterproofing in Carnation

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October 2026
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What's going on with your chimney?

Pick what you're seeing at your Carnation home — we'll point you to the right fix.

What we do

Other chimney services in Carnation

The same crew, the same written quote — for Carnation homes.

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

Why Carnation homes need chimney waterproofing

Carnation is the wettest of our four towns and the one with the oldest brick, which is the combination waterproofing was invented for. Roughly 30% of its housing predates 1980 by Census estimates, half of that share from before 1960. Old brick is more porous than new, and a stack that has absorbed water for sixty winters will keep absorbing it until something changes at the surface.

Ninety-five inches fall upstream

Above Carnation, in the Cascade foothills, a weather station at the Tolt South Fork reservoir recorded 95.20 inches of precipitation in an average year between 1962 and 2016, plus 53.4 inches of snowfall. The Tolt River brings that runoff down to town, where the city keeps watch on its gauge 5.5 miles to the northeast.

The valley floor is drier than the foothills, but it sits at the receiving end. Ground stays saturated, mornings stay humid, and brick close to grade dries slowly. On a chimney that starts at ground level we treat the full height, not only the part above the roof, and we check that soil and mulch are not piled against the lowest courses.

Your chimney waterproofing in Carnation: what's included

Every chimney waterproofing we do in Carnation includes:

  • Check of crown, joints and flashing before any product is opened
  • Brick cleaned of moss, soot streaks and loose mineral bloom
  • Roof, siding and plants masked or covered
  • Breathable repellent applied to saturation, bottom to top
  • Second pass on the weather side where the brick drinks more
  • Dated photos, plus the product name for your file

Signs you need chimney waterproofing in Carnation

  • Brick that stays dark for days once rain has stopped
  • A white powdery bloom spreading across the stack
  • Green growth on the north or east face
  • Thin flakes of brick face on the roof below
  • Damp smell or stained plaster near the chimney indoors

Smoke coming back into the room, or a smell that won't go? Book the inspection first.

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Why Carnation homes need it

Brick behaves like a hard sponge. It takes in rain, holds it, and releases it slowly, and a chimney stands above the roofline with all four sides exposed. Repellent changes the first step only: water beads and runs off, while vapor from inside the masonry can still escape. That second point is why we refuse to use sealers that form a skin. A skin traps moisture behind it, and the brick face comes off with the first frosts. Treatment is also not a repair. Cracked crowns, open joints and loose flashing are fixed first, or the repellent simply seals water in.

A three-and-a-half-month window to treat brick

Repellent needs dry masonry going in and dry weather while it cures. In Carnation, WeatherSpark locates the clearer part of the year between about June 21 and October 6, roughly 3.5 months, with July bringing only about an inch of rain.

Outside that window the odds turn quickly. By WRCC's regional account, December and January commonly log precipitation on 20 to 25 days apiece, and muggy summer heat is absent here all year, so the moisture that matters is cool-season rain and cloud. We book treatments from late June onward and stop when the fall rain sets in.

Your chimney waterproofing in Carnation, step by step

  1. 1

    Rule out leaks

    A water test with a hose, face by face, tells us whether the brick itself is taking water or whether the crown or flashing is to blame.

  2. 2

    Clean and let dry

    Growth and dirt come off with brushes and a low-pressure rinse. The stack must then dry out, which is why this job belongs to summer.

  3. 3

    Flood coat

    Repellent is sprayed from a low-pressure tank until the brick stops absorbing it. Mortar joints get particular attention.

  4. 4

    Verify

    After curing, a splash of water should bead on every face. We photograph that test for your records.

Chimney Waterproofing prices in Carnation

What this work is quoted at for Carnation homes — the exact figure comes from the $99 on-site inspection, credited toward the work.

Chimney Waterproofing prices in Carnation — published rates, 2026
ServicePrice in CarnationWhat that covers
Chimney Waterproofing$285–$790Breathable sealer — reapplied every 3–5 years in this climate
Chimney Sweep$189–$449Full 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
Chimney RepairFrom $425Masonry repair — brick and mortar, scoped after diagnosis

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

Around Carnation

Carnation is a small town platted as Tolt in 1902, where the Tolt River meets the Snoqualmie River, with homes with a median build year of 1993, though about one in seven dates from before 1960.

CarnationKing County, WA · 47.648, -121.914

Before and after

What the work changes

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

A Redmond Chimney Pros technician pointing to the four steps of a visit

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.

Chimney Waterproofing in Carnation — common questions

Price of waterproofing a chimney here?

$285 to $790, depending on height, access and preparation. Repairs that must come first are quoted separately, in writing.

How long does a treatment last?

Three to five years, after which a fresh coat is due. Faces that take the wind-driven rain wear out sooner than sheltered ones.

Is there a charge to come and look?

Yes. Coming out costs $99 plus tax, an amount we then take off the waterproofing bill if you accept our quote.

Get in touch

Book an inspection

Need your chimney checked in Carnation?

A $99 on-site inspection, a written quote before any work, and photos of every item we touch.

Call (425) 470-6533Book