Northgate, King County
Flashing repair around a Northgate chimney costs $375 to $1,495. When the Northgate metal is still sound, a reseal keeps the bill near its floor. Replacing the metal around the whole stack costs more, and a broad chimney needing a cricket framed on its high side sits at the ceiling. Roof pitch and roofing type shift the figure within that span. We find the leak during a $99 plus tax inspection, and those $99 are applied to the flashing work you approve.
Typical investment
$375–$1,495
Book an inspection
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 Northgate home — we'll point you to the right fix.
What we do
The same crew, the same written quote — for Northgate 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.
Detached houses are 46.0% of ZIP area 98125's housing, and the area's median year built is 1974. A Northgate house of that age has in all likelihood been reroofed since its chimney went up, and every reroof either renewed the chimney flashing or shingled around the old metal. Per WeatherSpark, Seattle's breezier half of the year runs from the middle of October into late April, with southerly winds prevailing; we therefore start on the chimney's south face.
Every chimney flashing repair we do in Northgate includes:
Smoke coming back into the room, or a smell that won't go? Book the inspection first.
Book nowFlashing leaks come from a short list of failures. Counter flashing caulked onto the brick face rather than cut into a joint: once the caulk hardens and cracks, the metal pulls away. Step flashing that a roofer left in place under new shingles, already rusted. And, behind wide chimneys, no cricket, so that water and needles pond against the back wall until they find a way in. On a framed chase the same logic applies, with siding in place of brick.
Staining in the attic is followed uphill to the entry point. On the roof we lift shingles at the chimney to see the metal underneath.
Reseal, partial replacement, or full replacement with a cricket: the quote names one and says why.
Shingles around the chimney are loosened, and old flashing and caulk are taken out.
Base, step and counter flashing go in from the bottom up, each piece lapping the one below. A cricket is framed where the code calls for one.
We run water over the finished work while someone watches from the attic.
What this work is quoted at for Northgate homes — the exact figure comes from the $99 on-site inspection, credited toward the work.
| Service | Price in Northgate | What that covers |
|---|---|---|
| Chimney Flashing Repair | $375–$1,495 | Reseal at the low end, full flashing replacement at the high |
| 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 Northgate. 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.
Northgate is a district that grew around the shopping mall opened in 1950 and joined Seattle in 1954, with postwar houses and apartments, in a ZIP area whose median build year is 1974. We work every part of it — Haller Lake, Pinehurst, Licton Springs included.
NorthgateKing County, WA · 47.707, -122.327
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.
$375 to $1,495, depending on whether the metal is resealed or replaced and whether a cricket has to be built.
For a Northgate house the rule is Seattle's: section R1003.20 requires a cricket wherever the chimney's ridge-facing side measures over 30 inches. Narrower chimneys can benefit as well where debris collects.
Flashing can look intact and still leak where it meets the brick. The water may also be entering through the crown or the masonry above and showing up at the same spot. The inspection sorts those out before anyone replaces metal.
SDCI's list exempts reroofing a house when the building envelope is unchanged. If a Northgate flashing job uncovers rotten framing, the scope changes and we check with the department before going further.
A $99 on-site inspection, a written quote before any work, and photos of every item we touch.
