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Chimney Chase Cover Replacement in Mill Creek, WA
New chase covers for Mill Creek's framed chimney chases, starting at $299. Free quote and price match plus 10-25% off.
- Serving Mill Creek & Snohomish County
- Free 2nd-opinion quotes
- Price match + 10–25% discount
Free Chimney Chase Cover Replacement Quote in Mill Creek
We'll confirm a time by phone or text.
If there is one chimney part Mill Creek homeowners replace more than any other, it is the chase cover. The typical Mill Creek house has a factory-built fireplace inside a wood-framed, sided chase, and the only thing keeping rain out of that chase is a sheet-metal pan on top. Builders commonly used galvanized steel, which rusts at the seams and around the pipe collar and sags into a pond in the middle. Rust streaks down the siding, a musty chase and water on the firebox are the usual signs. We fabricate replacements in stainless or heavier-gauge metal, with a cross-break so water runs off and a drip edge that clears the siding.
Chase cover replacement in Mill Creek and Silver Firs starts at $299 with a free quote. We measure the chase and check the storm collar and framing for rot before we order the cover. If another company has quoted you, we will give a free second opinion and price match plus 10-25% off. Renton to Mill Creek is about a 40-minute drive, so we can often measure the same day you call. If you are not happy with the cover, we are not done; we make it right at no charge. Certified and insured.
Symptoms
Signs Mill Creek homeowners notice
- Rust-colored streaks down the siding below the top of the chimney
- Standing water or rust pooling on top of the chimney after rain
- Water dripping onto the fireplace or staining the ceiling beside it
- Soft, swollen, or peeling siding and trim near the top of the chase
- A cover that rattles or lifts at the edges in wind
- Visible rust holes or a sagging center in the metal lid
Mill Creek Conditions
Why this happens in Mill Creek
A chase cover in Mill Creek is a flat pan of metal that sits in the rain for most of the year. Sea-Tac normals show 40.34 inches of annual precipitation, with about 73 percent falling October through March and the summer months of June through August totaling only about 3 inches. A galvanized cover that ponds water in the middle therefore stays wet for roughly half the year and dries out only in summer, which is the worst possible cycle for the zinc coating at the seams.
Mill Creek's shade deepens the problem. Regional roofing guidance notes that moss in Western Washington grows fastest October through April on north-facing or tree-shaded surfaces that dry slowly, and we routinely find moss and needle debris damming water against the pipe collar on covers here. Once rust pits through, water drops onto the framing below, and with around 60 days a year touching freezing, that wet plywood typically freezes and thaws repeatedly, which is why a small rust spot on a Mill Creek cover tends to become a rotted chase top.
How It Works
Our chimney chase cover replacement process
Measure the chase
We measure the chase, the flue pipe diameter and position, and the skirt height so the new cover fits without gaps.
Fabricate the cover
The replacement is made from stainless steel or aluminum with a cross-break, raised collar, and a drip-edge skirt over the siding.
Remove the old cover
The rusted lid comes off and we inspect and dry out the top plate. Minor wood damage is addressed before the new cover goes on.
Set and fasten
The new cover is fastened through the skirt into the sides of the chase, never through the top, and the collar is sealed to the flue pipe with high-temperature sealant.
Cap and check
We reinstall or replace the flue cap, confirm the storm collar is sealed, and photograph the finished top for you.
Full details, options and pricing factors on the main Chimney Chase Cover Replacement page.
Need chimney chase cover replacement in Mill Creek?
Call now or request a free quote — we confirm by phone or text.
☎ 206-453-2045 Request a QuoteQuestions
Chimney Chase Cover Replacement in Mill Creek — FAQ
What does a chase cover replacement cost in Mill Creek?
It starts at $299, and we quote the exact figure for free after measuring your chase. The size of the chase, the number of pipe penetrations and whether the storm collar needs replacing are what move the price. If you have a quote from someone else we will price match it and take 10-25% off.
How can I tell my Mill Creek chase cover has failed?
Look for rust streaks running down the siding under the chimney top, water or rust flakes on the firebox floor, or a musty smell from the fireplace after rain. You do not need to go on the roof; we inspect the cover and the framing beneath it during the free quote and show you photos.
How soon can you do chimney chase cover replacement in Mill Creek?
We confirm a time by phone or text after you request a quote; same-day service is often available for urgent problems in Mill Creek and the rest of Snohomish County.
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