Chimney Chase Rebuild Cost in Seattle (2026)

When a chase leak goes unnoticed long enough, the wood framing rots and repair is no longer enough — the structure has to be rebuilt. A chase rebuild reconstructs the framed, sided box around a factory-built fireplace, replacing rotten lumber and siding and re-flashing it so it sheds water again. In the Puget Sound, where damp framing rarely dries out, this is a common end-stage for neglected chases. Here's what a chase rebuild costs around Seattle and how to tell repair time is past.

What a chimney chase rebuild costs in Seattle

Rebuild pricing depends on how much of the chase has failed. A partial chase rebuild — replacing rotten framing and siding on one section and re-sealing — runs about $500–$1,500. A full framed chase rebuild, reconstructing the entire enclosure with new framing, siding, flashing, and cover, runs $1,500–$2,500. Height, roof access, and matching your home's existing siding affect the total. Because a rebuild means opening up the structure, we assess the full extent of the rot first and give you an itemized written quote.

Signs your chase needs rebuilding, not repairing

Framing that's soft, spongy, or crumbling when pressed.
Siding that's warped, buckled, or falling away from the chase.
Persistent leaks that keep coming back after seal repairs.
Visible rot, mold, or a musty smell inside the chase or around the fireplace.
The chase looks like it's sagging or leaning where the wood has weakened.

Why chases rot out in the Puget Sound

A chase is wood wrapped in siding, standing above the roof in one of the wettest climates in the country. When flashing or caulk fails, rain gets into the framing, and because our air stays damp for months, that wood never gets a real chance to dry. Moss on shaded north-facing roofs holds moisture right at the base of the chase, and slow, hidden leaks feed rot for years before anyone notices. By the time siding sags or framing goes soft, the wood is compromised enough that rebuilding is the only lasting fix.

Rebuild it right, and get an honest quote

A proper chase rebuild replaces the rotten wood, corrects the flashing and cover that let water in, and re-sides it to match your home — so the leak that started it all doesn't come back. It's more than a repair, so it's worth confirming the rot is truly extensive; we'll show you what we find. Quotes are free and itemized in writing, second opinions are free, and we price-match any honest competitor and beat it by 10–25%.

What Chimney Chase Rebuild Costs in Seattle (2026)

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

Partial chase rebuild	$500–$1,500
Full framed chase rebuild	$1,500–$2,500

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Get a free quote

See our full chimney service pricing, or learn more about Chimney Chase Rebuild. 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 a chimney chase rebuild cost in Seattle?

A partial rebuild replacing rotten framing and siding on one section runs about $500–$1,500. A full framed chase rebuild with new framing, siding, flashing, and cover runs $1,500–$2,500. Access and siding matching set the exact price, which you get itemized in writing first.

What's the difference between a chase repair and a chase rebuild?

A repair reseals flashing and caulk or swaps a bit of siding while the framing is still sound. A rebuild is needed once the wood framing has rotted, replacing the structure itself. We assess how far the rot has gone before recommending either.

How do I know if my chase framing is rotted?

Press the framing and siding — if it's soft, spongy, or crumbling, the wood is compromised. Warped siding, recurring leaks, musty smells, or a sagging chase all point to rot. We open up and assess the actual extent before quoting a rebuild.

Will a rebuild stop the leaking for good?

That's the goal. A proper rebuild replaces the rotten wood and corrects the flashing and cover that let water in, so the original leak source is fixed too. We also match your existing siding so it blends with the home.

Do I really need a full rebuild, or just a repair?

It depends entirely on how far the rot has spread, and it's worth a second opinion before committing. Some chases only need a partial rebuild or even a seal repair. Our assessments and second opinions are free, quotes are in writing, and we price-match honest competitors plus 10–25%.