Chimney Damper Replacement

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.

Frank & Sons 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.