Maple Leaf, King County
Chimney waterproofing in Maple Leaf is priced from $320 to $795. The bill follows the brick: how many square feet are exposed above the roof, how porous the faces are, and how much cleaning they need before they will take a repellent. A chimney on an outside wall, open to the weather on three sides from the ground up, is the larger job.
Typical investment
$320–$795
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Book your $99 inspection
$99 plus tax, deducted when you approve the repair
Not sure where to start
Pick what you're seeing at your Maple Leaf home — we'll point you to the right fix.
What we do
The same crew, the same written quote — for Maple Leaf homes.
A Level 1 review of everything reachable, raised to a Level 2 camera scan when a question stays open
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The whole flue brushed, using heads picked for the liner's size and shape
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A photo assessment that distinguishes surface wear from structural damage
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Camera survey and measurements taken before any liner is chosen
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Measurement of each flue, or of the crown when a single cap will span several
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Glass removed, cleaned and checked for a sound gasket
Learn moreRanges shown for orientation — the exact figure is written up on-site, after the inspection.
Water has shaped the top of this hill for more than a century. Seattle's Water Department built Maple Leaf Reservoir here in the early 1910s. Planning to put it underground began in 2009, and the 16-acre park laid over its lid was finished in 2013. The open hilltop that makes Maple Leaf Reservoir Park pleasant on a clear day is the same exposure that lets rain reach every face of a chimney nearby.
Timing matters more for this service than for any other we offer. Seattle's clearer season, in WeatherSpark's reckoning, opens in mid-June, closes near October 8 and so lasts under four months; January sits at the other extreme, with cloud cover dominating some 71 percent of the month. A repellent must go onto dry masonry, so we schedule Maple Leaf waterproofing inside that summer window whenever we can.
The age of the brick is the other half of the calculation. Just under half of the homes in ZIP area 98115, 48.7 percent, were built before 1960, which puts their chimneys through sixty-five or more wet seasons. Weathered brick tends to absorb more, and its joints are more open, so it both needs the treatment more and requires more preparation first. We inspect, repair what would let water behind the treated surface, and only then apply.
Every chimney waterproofing we do in Maple Leaf includes:
Smoke coming back into the room, or a smell that won't go? Book the inspection first.
Book nowBetween October 10 and April 30, the 6.6-month stretch that WeatherSpark's Seattle profile labels the wetter season, more than one day in three turns out wet. November is the peak, at roughly 7.5 inches over 16.7 wet days. Brick is porous. Through those months it takes in more water than it can give back between showers, and unprotected masonry stays saturated until late spring.
Water coming through a broken crown or loose flashing has to be stopped at its source. We check both before proposing a repellent.
The brick is washed and then left to dry out. The treatment day is chosen from the forecast.
Repellent is applied generously, working upward, until the masonry will hold no more.
Product name and application date go into a note you keep with the house papers.
What this work is quoted at for Maple Leaf homes — the exact figure comes from the $99 on-site inspection, credited toward the work.
| Service | Price in Maple Leaf | What that covers |
|---|---|---|
| Chimney Waterproofing | $320–$795 | Breathable sealer — reapplied every 3–5 years in this climate |
| Chimney Sweep | $209–$459 | Full flue swept, Level 1 inspection included |
| Chimney Inspection | $99 plus tax | Level 1 visual; Level 2 adds a full camera scan |
| Chimney Relining | From $1,900 | Full-length stainless liner, sized to the appliance |
| Chimney Repair | From $425 | Masonry repair — brick and mortar, scoped after diagnosis |
Ranges are what these jobs are quoted at in Maple Leaf. 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.
Maple Leaf is a hilltop neighborhood that reaches 466 feet at 92nd Street and Roosevelt Way, with houses from before 1940 through the 1950s, on both sides of the old city limit at 85th Street.
Maple LeafKing County, WA · 47.696, -122.317
Before and after
Illustrations of what each repair changes on a typical chimney — not photos of a specific job.
Before
After
Before
After
Before
After
Four steps, each one on paper — so you always know what happens next.
Choose a genuine opening on the crew's calendar. Confirmation is immediate.
Liner, crown, cap, flashing and masonry examined in order — each finding photographed.
One document, plain numbers, covering only the work your chimney genuinely needs.
The repair is completed, then handed over with before-and-after photos of every item.
No. We use a vapor-permeable repellent. Liquid water beads on the surface, yet vapor from moisture trapped earlier still finds its way out of the brick. Film-forming sealers and paint are what trap water.
Plan in years, not months. The Mad Hatter Chimney Sweep, a Seattle firm, puts the life of a masonry repellent at 5 to 10 years and advises renewal every 5 to 7 in this climate.
Not if the chimney's condition is unknown. An inspection costs $99 plus tax, and it is credited back on the waterproofing job once the quote is approved.
A $99 on-site inspection, a written quote before any work, and photos of every item we touch.
