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Usually the pilot, thermocouple or ignition. See common causes.
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Usually heat escaping through thin attic insulation.
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Home » Chimney Services » Chimney Repair » Chimney Cap Repair
Service · A1 Chimney & Roofing
A chimney cap is the metal cover, with a screen, that sits on top of the flue. Chimney cap repair fixes or replaces a cap that is rusted through, loose, clogged, or missing.

The work
The cap keeps rain, animals, and debris out of the flue, and the screen keeps sparks from landing on the roof. A cap is not the concrete crown. The crown is the slab that covers the top of the masonry. The cap covers the opening of the flue.
A repair may be a new screen, a refastened cap, or a full replacement when the metal is gone. If animals or leaves are already in the flue, the flue is cleared before the new cap goes on. A new cap is covered on the cap installation page when there has never been one.
Why it matters
An open flue takes rain straight down onto the damper and the firebox. That water rusts metal and soaks masonry from the inside, which is harder to see than a crack on the outside.
A screen full of creosote or nests also blocks the draft. The fireplace then smokes into the room even though the chimney itself is standing.
What to expect
The top of the chimney is checked, the cap is repaired or replaced, and the price is explained before the work starts.
A1 Chimney & Roofing is a nationwide team with its own licensed and insured technicians in 27 states. The price is explained before any work starts. Homeowners have left 25,719 Google reviews with a 5.0 rating.
How it works
Online in a minute, or call the 24/7 line. We confirm your local A1 technician and a time window.
Your technician checks the chimney and the roof around it, and photographs what they find.
You get the findings, the photos and a written price. Nothing starts until you say yes.
Drop cloths down, debris hauled away, before-and-after photos sent to you.
Reviews
“A1 Chimney is different. They truly care about your chimney and want to see you get the best use out of it.
They relined my chimney and did a great job. The technician was respectful and left the work area clean.
Book online
If the cap is rusted, missing, or the fireplace smells like animals, call (855) 8-CALL-A1 or send a photo for a free estimate.
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