Chimney Sweep & Cleaning
Professional sweep and creosote removal with HEPA containment — plus a complimentary flue scan on every clean.
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Eagle Chimney Service
Damper Repair & Replacement in Maryland
A warped or rusted damper is a hole in your house that never closes — pouring heated air out all winter and letting rain, animals and downdrafts in. We repair salvageable throat dampers and install top-sealing dampers that close the flue at the top with a gasketed, airtight seal.
- Licensed & Insured
- Photo-Documented
- Serving MD Since 2012
About This Service
Traditional cast-iron throat dampers warp with heat and rust with flue moisture; most we inspect no longer seal at all. A top-sealing damper mounts at the flue top, closes with a silicone gasket, and doubles as a cap — keeping weather and animals out while the chain-and-handle inside makes operation effortless. For many homes it pays for itself in a single heating season of stopped drafts.
What's Included
- Throat damper repair and adjustment
- Top-sealing damper installation (damper + cap in one)
- Gasketed airtight seal at the flue top
- Cable and handle fitted to the firebox
- Stops drafts, rain entry and animal access
Get a Free Estimate
Tell us about your chimney — we confirm every request by phone. Prefer to talk? Call (855) 424-6217.
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How It Works
Our Damper Repair & Replacement Process
1
Test the seal
We check how the existing damper actually closes — most do not.
2
Choose
Repair the throat damper or upgrade to top-sealing; we show both costs.
3
Install
The new unit is mounted, sealed and cabled to the firebox handle.
4
Verify
Open-close operation and gasket seal are demonstrated before we leave.
FAQ
Damper Repair & Replacement — Questions, Answered
Why is my closed damper still drafty?
Cast-iron dampers warp and rust until metal no longer meets metal. If you feel air at a closed damper, it is a vent, not a seal.
Is a top-sealing damper also a cap?
Yes — when closed it seals the flue top against rain and animals, doing both jobs in one unit.
Can I still use my fireplace normally?
Absolutely — the damper opens with a pull chain before a fire and closes after the embers are cold.
Does it help with chimney odors in summer?
Yes — an airtight top seal stops the humid downdrafts that push soot smells into the house.
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