Repairing and replacing throat dampers in Sailboat Bend
A damper should open fully, close squarely and move from the room. We work toward all three.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
Damper trouble that shows at the handle
- Plate stays open and will not close
- Rattling above the fireplace on windy days
- Daylight visible past the closed plate
- Insects getting in through the fireplace
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What goes into careful damper work
An open throat where a damper used to be
Sometimes the damper was removed long ago, or a plate fell and was never replaced. The throat is then open all the time. Conditioned air can leave the room, and nothing stops rain, debris or animals from reaching the firebox.
The building code expects a masonry fireplace to have a damper. If yours has none, we check whether the throat will accept a new throat damper. Where it will not, a different closure option may suit the fireplace, and we price that as a separate choice. You decide which route to take once both are explained.
Daylight past a closed plate
With the damper closed and a flashlight pointed up, you should see the plate lying against its frame. If you can see daylight past a closed plate, the gap is wider than it should be. The plate may have warped or dropped on its pivots.
Gaps let conditioned air out and outside air in. We check how the plate seats and whether the pivots or the plate are at fault. The estimate says whether adjusting, re-hanging or replacing the plate will close the gap.
The ledge that sits behind the damper plate
Behind a throat damper there is usually a ledge called the smoke shelf. It sits at the bottom of the smoke chamber and catches soot, debris and anything that falls down the flue.
A crowded shelf can stop the damper plate from opening all the way. We clear it as part of damper work where the debris is in the way. If the shelf itself is cracked or the chamber walls need parging, that is smoke chamber work, and it is listed separately with its own explanation.
Very hot fires and the damper plate
A cast damper plate sits right above the flames. Very hot fires, such as those fed with scrap lumber or large loads of paper, can warp it. Once warped, it may not seat properly again.
Burn dry, seasoned wood in a fire sized for the fireplace. EPA guidance on wood burning favors dry wood and warns against burning trash or treated wood, which can damage the appliance and release harmful chemicals. Those habits protect the damper, the firebox and the flue together.
What we check on the throat damper
- Rust scale removal from plate and frame
- Hearth and floor protection during work
- Notes on smoke chamber condition
- Operation check from inside the room
Your damper repair questions in Sailboat Bend
Can a rusted damper plate be saved, or must it go?
Often it can be saved. Light rust cleans off, and seized pivots can usually be freed. A plate that has rusted through, split or warped badly is replaced. We show you which case applies during the free inspection.
My damper handle snapped off. Is a new control enough?
Often, yes. If the plate and frame are sound, a replacement handle or rod may be all the damper needs. We check the plate and pivots before ordering anything, because a snapped handle sometimes points to a stuck plate.
Should I close the damper while embers are still glowing?
No. Leave the damper open until the fire is out and the firebox has cooled. Glowing embers still give off smoke and gases, and those need the open flue to leave the house.
More Ways to Care for Your Fireplace
- Fireplace Hearth RepairRepair the hearth surface after considering the supporting assembly and fireplace requirements.
- Chimney Crown RepairRepair the damaged chimney top with an approach matched to the crown and supporting masonry.
- Chimney Masonry RepairRepair affected chimney brickwork and joints with materials selected for the construction already in place.
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