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.

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.
Chimney Damper Replacement questions
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
Ready to get your chimney handled?
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.