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Phinney Ridge, King County

Chimney Waterproofing in Phinney Ridge, Seattle

Budget $320 to $795 to have a Phinney Ridge chimney treated against water. Square footage decides most of it: a short stack that barely clears the roof takes one pass and little product, while a tall exterior chimney exposed on three sides drinks far more. Brick that needs washing first, or a roof that calls for extra safety rigging, accounts for the remainder.

Typical investment

$320–$795

  • Serving Phinney Ridge 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 Ballard, Fremont, Green Lake
  • Local crews
  • Licensed & insured
  • Documented work
  • Written quote first

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Book your $99 inspection

$99 plus tax, deducted when you approve the repair

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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 Phinney Ridge

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October 2026
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What's going on with your chimney?

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

What we do

Other chimney services in Phinney Ridge

The same crew, the same written quote — for Phinney Ridge homes.

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

Why Phinney Ridge homes need chimney waterproofing

The ridge's east slope was cleared late and built on fast. HistoryLink recounts that the streetcar loop around Green Lake was completed in 1902, opening that slope to builders, and that loggers took off its fir and cedar the following year for Parker's sawmill. By 1903 about 2,000 people were living on the eastern slope. Brick laid in the building wave that came next has been absorbing rain for well over a hundred winters. Old brick of that kind is porous by nature, and it has usually lost the hard outer skin it left the kiln with.

Your chimney waterproofing in Phinney Ridge: what's included

Every chimney waterproofing we do in Phinney Ridge includes:

  • Masonry checked for open joints and crown cracks beforehand
  • Brick cleaned of moss, soot stains and loose material
  • Roofing, gutters and plants below masked against overspray
  • Vapor-permeable repellent applied to saturation, bottom to top
  • Crown treated with a coating made for horizontal surfaces when sound
  • Photos of the stack before, during and after application

Signs you need chimney waterproofing in Phinney Ridge

  • Brick that turns dark and stays dark long after rain
  • White powdery streaks on the chimney face
  • Damp patches on the wall or ceiling by the fireplace
  • A musty smell in the firebox with no fire burning
  • A green film on whichever face never sees the sun
  • Rust on the damper or the firebox metal

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

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Why Phinney Ridge homes need it

Waterproofing is the last step, never the first. Repellent sprayed onto open joints or a cracked crown seals nothing; water still gets in through the gap and then has a harder time getting out. So we look at the masonry before quoting, and if joints have to be redone the repellent waits until the new mortar has cured. Product choice matters as much: a film-forming sealer or paint traps moisture inside the brick, while a breathable siloxane-type repellent lets vapor escape and keeps liquid water from soaking in.

Three clear months to treat brick on Phinney Ridge, nine to test it

Seattle's dry window is short. According to WeatherSpark, the clearer part of the year lasts only about 3.8 months, starting in mid-June and ending around October 8; July is the driest month with 0.7 inch of rain, and January the cloudiest, when skies are mostly cloudy or fully overcast 71% of the time. A repellent needs dry brick going on and dry hours afterward, so nearly all of this work belongs in that window.

The rest of the year is the test. One Seattle chimney company states that a masonry water repellent holds for 5 to 10 years and recommends reapplying every 5 to 7. On the ridge we lean toward the short end of that range for the faces that meet the weather. The reason is exposure: high ground gets more wind, and wind is what turns ordinary rain into water forced against a wall.

Your chimney waterproofing in Phinney Ridge, step by step

  1. 1

    Test absorption

    A little water on the brick shows how quickly it soaks in and whether an earlier treatment still works.

  2. 2

    Repair what is open

    Any joint or crown defect is quoted and fixed before treatment, or the treatment is postponed.

  3. 3

    Clean and dry

    The stack is washed where needed and left to dry. The product must go on dry brick.

  4. 4

    Apply

    With the surroundings covered, a gentle spray feeds the brick until it stops absorbing.

  5. 5

    Record

    Product and date go on file, which gives the next treatment a known starting point.

Chimney Waterproofing prices in Phinney Ridge

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

Chimney Waterproofing prices in Phinney Ridge — published rates, 2026
ServicePrice in Phinney RidgeWhat that covers
Chimney Waterproofing$320–$795Breathable sealer — reapplied every 3–5 years in this climate
Chimney Sweep$209–$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
Chimney RepairFrom $425Masonry repair — brick and mortar, scoped after diagnosis

Ranges are what these jobs are quoted at in Phinney Ridge. 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 Phinney Ridge

Phinney Ridge is a ridge-top neighborhood between Aurora Avenue N and 8th Avenue NW, named for Guy Phinney, with houses that followed the Phinney Avenue streetcar north between 1906 and 1909.

Phinney RidgeKing County, WA · 47.679, -122.355

Before and after

What the work changes

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

A North Seattle Chimney Pros technician pointing toward 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 Phinney Ridge — common questions

What does chimney waterproofing cost on Phinney Ridge?

$320 to $795. The surface to cover and the preparation the brick needs decide where your chimney falls.

How long does a treatment last?

One Seattle chimney company says on its website that 5 to 10 years is the life of a masonry repellent, and that on chimneys around Seattle a fresh application is due after 5 to 7. Exposure shortens that, so a windward face is worth testing sooner.

Will the brick look different?

No. A penetrating repellent leaves no gloss or film. Rain beads on the surface where it used to soak in.

Is the $99 inspection required before waterproofing?

We need to see the masonry before treating it, and that visit is the inspection, billed at $99 plus tax. Once you say yes to the waterproofing quote, the fee is counted as part of the payment.

Get in touch

Book an inspection

Need your chimney checked in Phinney Ridge?

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

Call (206) 429-6308Book