Built Right. Built to Last. Chimney & Fireplace Services · Greater Pittsburgh
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Fireplace

Chimney Damper Replacement

When a damper is too far gone to repair, a new one — especially a top-sealing model — restores a tight seal for good.

Fireplace where a new damper improves the seal

Sometimes a damper is beyond repair: rusted through, warped past sealing, or simply worn out after decades of heat and moisture. When that's the case, replacing it restores the seal that keeps conditioned air in and weather out — and it's a chance to upgrade to a damper that seals far better than the original.

Roosevelt Chimney Works replaces throat dampers and installs modern top-sealing dampers, which close at the very top of the flue with a gasketed cover for a much tighter seal. A top-sealing damper doubles as a cap, keeping out rain and animals when the fireplace is idle — solving several problems at once.

When replacement is the right call

  • The existing damper is rusted through or warped.
  • It won't seal even after attempted repair.
  • You want a tighter seal than a throat damper provides.
  • You're dealing with downdrafts, water, or animals as well.
  • The damper is missing entirely.

Choosing the right replacement

For a straightforward swap, we can replace a failed throat damper with a new one. But for the best seal and the most value, we often recommend a top-sealing damper: it mounts at the top of the flue, seals with a gasket via a cable you operate from the firebox, and keeps out water and animals like a cap.

Because a top-sealing damper addresses energy loss, downdrafts, water intrusion, and wildlife in one component, it's frequently the smarter long-term choice. We'll help you weigh the options and install it correctly for a lasting, tight seal.

Pittsburgh & Western PA context

A tight-sealing damper pays off year-round in the Pittsburgh climate — holding heated air in through the winter and blocking humid, odor-laden air from pushing down the flue in summer. Top-sealing dampers are an especially popular upgrade for exactly that reason.

Related services


Serving Pittsburgh · Mt. Lebanon · Upper St. Clair · Bethel Park · South Park · Baldwin · Whitehall · Brentwood & many more communities across Greater Pittsburgh.

FAQ

Chimney Damper Replacement questions

It's a damper that seals at the very top of the flue with a gasketed cover, operated by a cable from the firebox. It seals much more tightly than a traditional throat damper and also keeps out water and animals like a cap.
For many homeowners, yes. It seals better, reduces downdrafts, and doubles as a cap against water and wildlife — addressing several issues in one component.
Yes. A direct throat-damper replacement is available when that's what you prefer. We'll explain the trade-offs against a top-sealing upgrade so you can choose.
Get Started

Request Chimney Damper Replacement

Tell us what's going on and we'll help with your chimney damper replacement needs across Greater Pittsburgh.

  • Honest, camera-backed assessments
  • Repairs recommended before replacement
  • Serving Greater Pittsburgh & ~60 miles around

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Whether it's a routine cleaning, a stubborn leak, or masonry that's seen better winters - Roosevelt Chimney Works is ready to help across Greater Pittsburgh.

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