Home › Service Areas › Des Moines › Chimney Chase Cover Replacement
Chimney Chase Cover Replacement in Des Moines, WA
Stainless chase covers for Des Moines factory-built chimneys that rust out fast in the salt air. Starting at $299.
- Serving Des Moines & King County
- Free 2nd-opinion quotes
- Price match + 10–25% discount
Free Chimney Chase Cover Replacement Quote in Des Moines
We'll confirm a time by phone or text.
If your Des Moines home was built after the 1980s, there is a good chance the chimney is a siding-wrapped wooden chase with a metal pan on top, not brick. That pan is the chase cover, and it is the part that fails. The plats around Zenith, Woodmont, the Kent-Des Moines Road corridor and the newer homes east of Pacific Highway S typically came with galvanized covers, and between salt air off Puget Sound and the wet season they rust through at the edges and around the pipe collar. The first sign is orange streaks down the chase siding; the next is a wet firebox or a ceiling stain.
We replace the rusted pan with a custom-fit stainless steel cover, cross-broken so water runs off, with a tall collar and a storm collar at the pipe and a drip edge past the siding. Chase cover replacement starts at $299. We measure on site for a free quote, and we match any other bid and take 10-25% off. Des Moines is about 20 minutes from our Renton office, and the swap usually takes one visit, often same day. If you are not happy, we are not done. Rotted framing under the cover is a chase rebuild, starting at $299; see chimney repair.
Symptoms
Signs Des Moines 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
Des Moines Conditions
Why this happens in Des Moines
Chase covers in Des Moines have a harder life than the same covers in Kent or Renton. The city sits on Puget Sound, and the salt in the air typically corrodes galvanized steel faster than inland, which is why we see rust-through on covers here that would still be holding up a few miles east. The rain does the rest: Sea-Tac's normals put 40.34 inches a year on the region, 29.65 of it October through March, and a flat or sagging cover holds a puddle through that entire stretch. Standing water on galvanized steel is where the pinholes start.
Cold finishes the job. Winter lows average 37-38F with about 60 days a year touching freezing, so water trapped under a lifted seam or in a rust pocket freezes and pries the seam open. Covers on chases shaded by the firs around Saltwater State Park and in Woodmont stay wet longest. A stainless cover does not rust, and a cross-broken one does not hold water, so the wet season stops being the problem.
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 Des Moines?
Call now or request a free quote — we confirm by phone or text.
☎ 206-453-2045 Request a QuoteQuestions
Chimney Chase Cover Replacement in Des Moines — FAQ
There are rust streaks down the chimney siding on my Des Moines house. Is that the chase cover?
Almost always. Orange streaks starting at the top of a sided chimney mean the galvanized cover is rusting, and water is likely getting into the chase already. We come out for a free quote, measure the chase and replace the cover with a stainless one starting at $299, usually in a single visit.
Do you carry chase covers in stock for Des Moines homes?
Covers are made to measure, because chases in the Zenith and Woodmont plats vary in size and pipe placement. We measure during the free quote and return with the fabricated stainless cover, often within a few days. Des Moines is 20 minutes from our Renton office, so the install visit is quick to schedule.
How soon can you do chimney chase cover replacement in Des Moines?
We confirm a time by phone or text after you request a quote; same-day service is often available for urgent problems in Des Moines and the rest of King County.
Other services in Des Moines
Chimney Chase Cover Replacement nearby