Chimney Chase Repair Cost in Seattle (2026)

A chase is the wood-framed, sided box that encloses a factory-built metal fireplace — common on Seattle and Tacoma homes built from the 1980s on. Because it's essentially a small structure sticking above your roof, water finds every weak point: failed flashing, cracked caulk, rot at the framing, or damaged siding. Chase repair addresses those leaks before they reach the framing and ceilings below. Here's what chase repair costs around Puget Sound and how to catch the trouble spots early.

What chimney chase repair costs in Seattle

Chase repairs are priced by what's leaking. Flashing and seal repair — resealing the flashing where the chase meets the roof, re-caulking joints, and sealing penetrations — runs about $299–$700. Framing and siding repair, where water has reached the wood and rotted framing or damaged siding needs replacing, runs $700–$1,500. Roof access and how far the water has traveled affect the number. We find the actual leak source and give you a written quote before starting, so you're fixing the cause, not just the symptom.

Signs your chase is leaking

Water stains on the ceiling or wall around the fireplace after rain.
Rusty streaks running down the chase cover or siding.
Cracked, peeling, or missing caulk where the chase meets the roof.
Soft, spongy, or discolored siding and trim on the chase.
Damaged or lifting flashing at the base of the chase.

Why chases leak in the Puget Sound

A chase presents flat seams, flashing lines, and caulk joints to months of steady rain, and every one of those is a potential entry point. Sun and weather crack old caulk; wind-driven rain gets behind flashing; and moss on shaded north-facing roofs traps moisture right where the chase meets the shingles. Once water gets past the seal it soaks into the wood framing, and our damp climate means that wood rarely fully dries out — so small leaks quietly turn into rot. Fixing the seal early keeps the framing dry.

Seal it now before the framing rots

A chase leak is cheapest when it's still just flashing and caulk. Let it run and the water reaches the framing, where rot repairs cost more and can spread into the roof and ceiling. Catching it at the seal stage — $299–$700 — is far less than a framing rebuild. We track down the real source, quote it free and in writing, offer a free second opinion, and price-match any honest competitor and beat it by 10–25%.

What Chimney Chase Repair Costs in Seattle (2026)

Real 2026 ranges for the Seattle–Tacoma–Everett area, with a free written quote before any work begins.

Chase flashing / seal repair	$299–$700
Chase framing / siding repair	$700–$1,500

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Get a free quote

See our full chimney service pricing, or learn more about Chimney Chase Repair. You get a free written quote before any work begins — call 206-453-2045 or request your free quote online.

Questions homeowners ask

How much does chimney chase repair cost in Seattle?

Resealing flashing and caulk joints runs about $299–$700. If water has reached the wood and framing or siding needs repair, expect $700–$1,500. Roof access and how far the leak has spread set the exact price, which you get in writing first.

What is a chimney chase?

A chase is the wood-framed, sided enclosure that surrounds a factory-built metal fireplace, common on Seattle homes from the 1980s onward. It sits above the roof like a small structure, so its flashing, caulk, and siding are all points where our rain can get in.

How do I know if my chase is leaking?

Look for ceiling or wall stains near the fireplace after rain, rust streaks on the siding, cracked caulk where the chase meets the roof, or soft, discolored siding. We find the actual entry point rather than guessing, so the repair fixes the cause.

Is a chase leak the same as a chase cover leak?

Not quite. The chase cover is the metal lid on top, while chase repair also covers the flashing, caulk, siding, and framing of the whole enclosure. A leak can come from any of these, so we check the full chase to pinpoint the source.

What happens if I ignore a chase leak?

Water reaches the wood framing, and in our damp climate that framing rarely dries out, so it rots and the damage spreads into the roof and ceiling. Fixing the seal early is far cheaper than a framing rebuild. Our quotes and second opinions are free, with a price-match plus 10–25%.