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Chimney Chase Cover Replacement in SeaTac, WA
Rust streaks on the chase of your SeaTac townhome? Measured-to-fit replacement covers, starting at $299, 15 minutes from Renton.
- Serving SeaTac & King County
- Free 2nd-opinion quotes
- Price match + 10–25% discount
Free Chimney Chase Cover Replacement Quote in SeaTac
We'll confirm a time by phone or text.
SeaTac's brick chimneys belong to the older ramblers; its chase covers belong to the townhomes and rebuilt homes that went in from the 1980s on, along Military Road, International Boulevard, South 188th Street and the lots near Angle Lake that were redeveloped. Those houses have a factory-built fireplace inside a wood-framed chase wrapped in siding, with a sheet-metal cover on top as the only barrier against rain. The original covers were typically flat galvanized steel. After a few decades they rust through at the seams and screw holes, sag into a puddle around the flue collar, and stain the siding orange. Left alone, the plywood under the cover goes soft and the ceiling beside the fireplace stains.
We measure the chase and fabricate a cover that is cross-broken so water runs to the edges, with a tall collar at the flue and a drip edge that clears the siding. Chase covers start at $299, the quote is free, and we price match plus 10-25% off any written bid. SeaTac is about 15 minutes from our North Renton office, so standard sizes can often be measured and installed the same day. If the framing has rotted we show you the photos and quote a chase rebuild, starting at $299.
Symptoms
Signs SeaTac 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
SeaTac Conditions
Why this happens in SeaTac
A flat cover in SeaTac sits under the region's own rain gauge. The airport's 1991-2020 normals give 40.34 inches a year over roughly 150-156 days, with November at 6.31 inches and the October-through-March wet season carrying about 29.65 inches. A cover with any sag holds a puddle for that whole stretch, and standing water is what eats galvanized steel at the fastener holes and folded seams. The roughly 60 freezing nights a year expand that water in the seams and pry them open a little more each time.
Shade keeps the puddle there. Regional roofing guidance says Western Washington moss spreads fastest October through April on north-facing or tree-shaded surfaces, and the fir-lined lots around Angle Lake and the shaded north sides of townhome rows put many covers in that position. Moss and needles on a cover block the drainage path, so rust starts sooner and the chase framing below typically stays wet until summer.
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 SeaTac?
Call now or request a free quote — we confirm by phone or text.
☎ 206-453-2045 Request a QuoteQuestions
Chimney Chase Cover Replacement in SeaTac — FAQ
How do I know if the chase cover on my SeaTac townhome has rusted through?
Orange streaks on the siding just below the top of the chase, a brown stain or bubbled paint on the ceiling near the fireplace, a musty smell upstairs, or visible sag if you can see the top from a neighbor's window. Any of those is worth a free quote. Please do not climb up to look; we check the cover and probe the framing from our own ladder.
Can you do all the chase covers in a SeaTac townhome row at once?
Yes. Rows along Military Road and International Boulevard often have six or eight identical chases, and we measure them in one visit, fabricate matching covers, and give the HOA or property manager a single written quote with photos. Scheduling is arranged around the residents and the work is finished in as few trips as possible.
How soon can you do chimney chase cover replacement in SeaTac?
We confirm a time by phone or text after you request a quote; same-day service is often available for urgent problems in SeaTac and the rest of King County.
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