A top-sealing damper is needed when the chimney has no damper, when the existing throat damper is rusted shut or corroded beyond function, or when you want to eliminate the significant energy loss that occurs through an open flue when the fireplace is not in use.
- Remove old throat damper if applicable
- Top-mount damper sizing and installation
- Seal to flue tile
- Control cable run to fireplace
The Cost of Delay
An open throat damper — or a chimney with no damper — is a direct connection between the interior of your home and the outside air. Contacting an expert early allows for targeted solutions before the damage becomes significantly more expensive to address.
A top-mounted damper seals the flue at the top of the chimney when the fireplace is not in use, eliminating the convective heat loss that occurs through an open throat. It also acts as a rain cap and keeps animals out. When the fireplace is in use, the damper opens fully with a cable pull, providing unrestricted draft.
Quality stainless steel top-sealing dampers last 15 to 20 years or more. The silicone gasket seal may need occasional replacement after a decade of use, but the body of the damper remains functional indefinitely.
An open throat damper — or a chimney with no damper — is a direct connection between the interior of your home and the outside air. In winter, the temperature differential drives cold air down through the flue and into the room, even with a conventional damper closed, because throat dampers seal poorly by design. Year-round, the open column of air draws conditioned air upward. Energy audits consistently identify open fireplace flues as one of the top sources of heat and cooling loss in homes that have them. Humid outdoor air flowing into the flue also accelerates mortar deterioration inside the chimney, compounding the maintenance cost over time.
- The Details Matter: Our specialists arrive fully equipped to deliver precise, lasting results tailored exactly to your home's needs — no guesswork, no shortcuts.
- We Stand Behind Our Work: Every job comes with our commitment to quality so you can rest easy knowing your home is properly protected.
- Licensed & Insured: Full liability coverage on every visit, protecting you and your property throughout the entire process.
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