Chase Cover Replacement in Pinecrest and South Miami-Dade
The flat metal pan on top of your chimney chase is all that stands between rain and the framing below. When it rusts or ponds water, we replace it with a custom-fit cover that sheds water properly.
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The chase cover is the broad metal pan closing off a framed chimney chase up top, with the flue passing through its center. Builders typically installed galvanized covers, and in south Miami-Dade those have a short life: salt-touched air eats through the zinc coating, rust blooms from the center outward, and the flat pan begins ponding water after each afternoon storm. Once the metal perforates, water dumps directly into the chase, drenching framing and, in time, the ceiling underneath. The rust streaks running down your siding are the early warning.
Failed covers get remade in stainless or heavy-gauge aluminum, fabricated to your chase's exact dimensions. Every cover gets a cross-break, a slight ridge formed across the center, so water runs off to the edges instead of ponding, plus a hemmed drip edge that carries runoff past the siding and a storm collar sealing the flue penetration. Measured and fitted properly, the new cover ends the leak at its source rather than chasing stains inside the house. Free written estimates, upfront pricing, and no hidden fees on every replacement.
A Closer Look
What's Included
Exact-fit fabrication
Covers made to your chase's true measurements, with the right skirt depth and flue opening placement, not a stock pan forced to fit.
Stainless and aluminum options
Materials chosen for coastal South Florida, where galvanized steel rusts out years ahead of schedule.
Cross-break and drip edge
A formed ridge sheds water to the edges, and a hemmed drip edge keeps runoff off the siding below.
Storm collar and sealing
The flue penetration is collared and sealed so storm-driven rain never slips in around the pipe.
Signs You Need It
- Rust-colored streaks trail down the stucco or siding beneath the chase top.
- Standing water sits in the middle of the cover after storms.
- Ceiling stains show up around the fireplace after heavy rain.
- The cover flexes, rattles, or has visibly bowed in the center.
How It Works
Measure the chase
We take exact dimensions of the chase top, flue position, and skirt depth so the new cover fits the first time.
Fabricate the cover
The replacement is formed in stainless or aluminum with a cross-break, hemmed edges, and the correct flue opening.
Set and seal
The old cover comes off, damage underneath gets checked, and the new cover is fastened, collared, and sealed.
Ready for honest chase cover replacement help?
Free written estimates · Upfront pricing · Same-day service available
Frequently Asked Questions
Chase cover vs. chimney cap. Which is which?
The cover is the flat pan sealing the chase's entire upper surface; the cap is the little hood perched over the flue opening. They work as a pair, the cover defends the structure from water, while the cap keeps weather, wildlife, and litter from dropping into the flue. We handle both.
Which material should I choose?
Stainless steel is the most corrosion-resistant option we install and the one we recommend this close to the bay. Heavy-gauge aluminum also performs well here and won't rust, though it's a softer metal. What we don't recommend is another galvanized pan, because the coastal air that killed the first one hasn't gone anywhere.
Can't the rust just be sealed or painted over?
Coatings buy a little time on surface rust, but once a cover pits or holds standing water, corrosion is working from both sides of the metal. Replacement costs less than repairing the rotted framing that a failed cover eventually causes.
Is a chase cap the same as a chase cover?
Yes. Chase cover is the trade term and chase cap is what most homeowners call it, along with top pan and chase top. All describe the metal lid closing the top of a framed chimney chase. It is a different part from the chimney cap, which is the smaller screened hood over the flue opening itself.
Can a rusted chase cover be repaired instead of replaced?
Only while the metal still has structure. If the pan is firm when pressed, drains rather than ponding, and has no perforation at the folds or seams, cleaning back and coating buys real time. Flexing metal, standing water after every storm, or a hole at a fold means the shape is gone and coating it only hides the problem.
What rust streaks tell you about where the pan is failing
Streaking beneath a chase top is directional evidence. Stains that begin at discrete points spaced evenly along an edge are coming from fasteners, which means the coating has failed at the penetrations while the field of the pan may still be sound. Stains that start along a continuous line are coming from a seam. A broad, even wash of orange down one face usually means the pan is corroding across its whole surface and shedding oxide with every rain. Each of those patterns says something different about how far along the failure has gone.
Color and texture add a second reading. Light orange dust that rinses off is early surface corrosion. Dark brown staining that has soaked into stucco and will not wash out has been feeding for a long time. Black or green black streaking on the siding below is usually organic growth living on constantly damp material rather than rust at all, and that means the surface under the pan is staying wet between storms, which is a drainage problem as much as a metal problem.
Ponding is a geometry problem, not a weather problem
A pan that holds water is not holding it because the rain was heavy. It holds water because the surface has no fall, or has lost the fall it once had. Original pans are often formed nearly flat, and sheet metal spanning a wide chase deflects under its own weight, under collected debris, and under any load that has ever been put on it. Once a low spot exists, water sits in it, and standing water attacks a coating far faster than water that runs off, so the depression deepens.
Evidence of ponding survives the dry days. A chalky mineral ring, a tide line of grit and leaf fragments, or a patch of discoloration in the middle of an otherwise uniform surface all mark where water has been standing repeatedly. Sediment collected against the flue penetration means water has been draining toward the pipe rather than away from it, which is the worst available direction. From the ground, a pan whose edges sit higher than its middle has already lost the shape that kept it draining.
Checking the flue penetration and the collar
The opening where the pipe passes through the pan is the most common leak point on an otherwise intact cover. That joint is meant to be closed by a collar that grips the pipe and sheds water outward onto the pan. Collars slip down over time, sealant beneath them shrinks and pulls away from the metal, and the gap left behind faces straight up. Rain needs no help from the wind to find it. A collar sitting flat against the pan instead of angled away from the pipe has already stopped working.
Distinguishing a collar leak from a pan leak is often possible from below. Water entering at the pipe follows the outside of the flue downward and tends to stain tight around the chase interior near the pipe, while water coming through a perforated pan spreads across the top framing and shows up out at the perimeter. If the interior staining rings the flue rather than tracking down a wall, the penetration is the first place to look and the pan itself is the second.
Ruling out the cap, the flashing, and the siding
Several components leak into roughly the same place, so timing and weather do most of the sorting. A leak that only appears with wind out of one direction is entering a vertical surface, which points at siding, stucco, or flashing rather than a flat pan. A leak that appears in any rain, wind or not, is entering something horizontal, and the pan and its collar are the horizontal surfaces up there. Rain falling straight down and reaching the inside of a house had a straight down path available to it.
The cap over the flue opening is a separate matter again. A missing or damaged cap lets rain into the flue itself, which shows as water in the firebox, a wet smoke shelf, or a damper that has rusted stiff, not as staining in the framing around the chimney. Water in the flue and water in the chase are different problems with different entries, and having both at once is common when every component on top of the chimney is the same age.
Chase cover or chase cap: the same part, two names
Homeowners and builders often use different words for this component, which makes searching for help confusing. The flat metal pan that closes the top of a framed chimney chase is called a chase cover in the trade, and a chase cap by a lot of the people who own one. Some manufacturers use top pan or chase top. They all describe the same thing: the lid that keeps water out of the framed box below.
It is worth separating that from the chimney cap, which is a different part entirely. The chimney cap is the small hood with a screen that sits over the flue opening itself, and it can sit on top of a chase cover without either one touching the other. A leak traced to one of them has nothing to say about the condition of the other, so knowing which part you are looking at is the first step to knowing what needs doing.
Telling a cover that can be repaired from one that cannot
Press the flat area with the heel of your hand. A sound pan resists and stays flat. One that flexes, or that pops back with a hollow sound, has lost thickness to corrosion and is no longer structural, whatever it looks like from the ground. Then sight along the surface from one side: any daylight through a pinhole, any hole at a fold, and any perforation along a seam ends the question, because those are the places that carry the shape.
Standing water is the other test, and it is best read the morning after heavy rain. A cover with enough fall sheds and dries. A flat one holds a puddle in the same spot every time, and that spot is where it will corrode again no matter how well it is treated. Rust that has bloomed only on the top surface, on a pan that is still firm and drains, is the one case where cleaning back and recoating genuinely buys time.
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