Repairing and replacing throat dampers in The Hammocks
A working damper keeps room air in when the fireplace is idle and lets smoke out when it is lit.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
Clues that point to the fireplace damper
- Handle swings with no resistance
- Rust flakes collecting on the firebox floor
- Crank turns without moving the plate
- Insects getting in through the fireplace
Jump to
Damper work, from handle to plate
Freeing a plate that has seized
Freeing a damper is careful work rather than force. We remove loose scale and debris from the plate and frame, clean the pivots, and work the plate through its travel in small steps. Each step is checked before the next, so a hidden crack is more likely to show before it spreads.
The aim is a plate that opens fully, closes squarely and moves by hand from the room. If freeing it reveals a crack or a broken lug, we stop and explain the change. Freeing a sound damper is usually the smaller job, which is why we try it wherever the parts are worth keeping.
Damper parts inside a factory-built unit
A factory-built fireplace is a listed assembly. Its damper, its control and the parts around them were tested as part of that listing. The Florida Building Code asks that such fireplaces be installed to their listing and the manufacturer's instructions.
That means replacement damper parts come from the manufacturer's parts list for your model. A generic plate meant for a masonry fireplace is not a substitute. We find the model information, check which listed parts are available, and tell you plainly if the design has been discontinued.
Rain that rusts the damper starts at the top
A damper that rusts quickly is often catching water from above. An uncapped flue lets rain fall straight onto the plate. The damper then rusts from the top down while the room side looks fine.
Replacing the damper without addressing the water would repeat the problem. We note whether the flue has a cap and whether water shows on the smoke shelf. Chimney cap replacement is its own item on the estimate. You decide whether to address both together or the damper alone for now.
Heavy deposits on the plate
A thick layer of deposits on the plate adds weight and can stop it seating on the frame. It also hides rust and cracks underneath, so the plate cannot be judged until it is cleaned.
We clean the plate enough to see its condition before recommending anything. The plate often turns out sounder than it looked. If the deposits come from how the fire burns, we mention it. A sweep of the flue may be recommended when the deposits continue above the damper, and that is listed separately.
What we check on the throat damper
- Smoke shelf debris clearance
- Rust scale removal from plate and frame
- Pivot cleaning and freeing
- Chimney top water source noted
Damper questions worth asking
Is it safe to light a fire if the damper only opens halfway?
No. A plate that stops partway narrows the passage and tends to push smoke into the room. Leave the fireplace unused until the plate opens fully and the cause has been found and repaired.
How soon can I use the fireplace after damper work?
A new control or a freed plate can often be used once we finish. Where a frame was set in fresh mortar, the fireplace waits for that mortar to dry and cure as its maker directs. We tell you the plan.
Is damper repair covered by a warranty?
Our workmanship warranty covers the work we did on the damper. If our repair does not hold as it should, tell us and we come back to look at it. Ask us to explain the terms for your job before you approve.
We received your request
Our team will contact you to arrange your inspection.
Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo