Top mount dampers
A top sealing damper closes the flue at the crown and is opened with a cable and often doubles as a cap.
Chimney Parts
Chimney Damper Repair La Plata, MD
A chimney sweep in La Plata can repair a damper that is stuck, rusted, warped or no longer seals by freeing the plate, fixing the linkage or installing a new damper. Call (240) 622-3033 to reach a local chimney sweep.
The damper is the movable plate that opens the flue when a fire is burning and closes it when the fireplace is not in use. Many fireplaces have a throat damper mounted above the firebox, while others have a top sealing damper at the top of the chimney. Years of heat and moisture are hard on any damper.
A stuck shut damper means smoke and gases spill into the room instead of rising up the flue. With a fire already burning and the damper stuck closed, ventilate the room, keep everyone clear and call 911 if smoke gets heavy or someone feels ill. A damper should stay open until the ashes are cold.
A damper that will not close lets warm air out all winter and cooled air out all summer. Warped or rusted plates rarely seal tightly, so drafts get through. A top sealing damper often solves both the seal and the rust problem.
Many chimney damper repair calls in La Plata also turn up a need for chimney cap installation or fireplace repair.
Need chimney damper repair in La Plata? Call (240) 622-3033 to reach a nearby chimney sweep.
Call nowThe process
How chimney damper repair works
Here is how a sweep usually handles a damper problem.
Look at the plate
The damper is opened and closed to see where it sticks or fails to seal. Rust and buildup are checked too.
Clear the frame
The damper frame and plate are cleaned so they can move freely. A cleaning is sometimes all it takes.
Repair the parts
Worn parts are swapped and the plate is adjusted to close properly. Parts for some older dampers are no longer made.
Install a new damper
When repair is not practical, a new damper goes in. The choice depends on the fireplace and the chimney.
Check the seal
The sweep tests the damper and checks the draft. You will be shown how to use it properly.
What is included
Common damper repairs
Gas log damper clamps
Fireplaces with vented gas logs need the damper fixed in an open position with a damper clamp which is a safety requirement.
Linkage repair
Broken handles, levers, rotary controls and pins are fixed so you can open the flue easily.
Cast iron damper repair
Throat dampers that stick or leak are repaired with worn parts replaced.
Damper replacement
Failed dampers are replaced with a new throat damper or a top sealing damper with the right control for your fireplace.
Related service
Chimney Damper Replacement La Plata, MD
When a damper is rusted through, cracked or badly warped, replacement is usually the only option. A new throat damper is possible in some fireplaces, though the opening has to match. A top sealing damper often makes more sense than a new throat damper.
If you are in La Plata, call (240) 622-3033 and describe what the damper does or does not do. If the fireplace has gas logs, say so, since the damper must stay open with vented logs. You will hear which replacement suits the fireplace.
Related service
Top Sealing Damper La Plata, MD
Mounted on top of the flue, a top sealing damper seals the chimney at the crown instead of at the throat. You work it with a handle in the firebox attached to a cable running up the chimney. Some designs combine the damper with a cap and screen.
The flue stays closed off from outside air when the fireplace is not in use. It helps block rain and animals as well. In very cold weather, the gasket should be checked to make sure it has not frozen to the frame before a fire is lit.
Local help
Chimney Damper Repair Near Me
Dampers in La Plata fireplaces take the brunt of heat in winter and moisture the rest of the year. Homes in La Plata and nearby towns such as Bensville, Waldorf, Bryans Road and Accokeek often have dampers that have rusted or warped after decades of use, which is why the damper is worth checking every time the chimney is swept.
Need chimney damper repair around La Plata? Call (240) 622-3033 for a La Plata chimney sweep who serves the towns around it too.
Chimneys in this climate
The heating season here is shorter than up north, yet most winters bring plenty of cold nights by the fire. Temperatures cross the freezing mark again and again, which is hard on brick and mortar, and soaking rains in spring and fall test every crown and flashing joint. Warm, humid summers bring animals and damp odors to chimneys that sit unused. Most chimney cleaning in La Plata is booked in the fall, before the first cold snap.
Why call
Why not wait
Safer fires
Small chimney problems caught early usually stay small repairs.
Local knowledge
Local sweeps see the same chimney types and weather wear across La Plata and nearby towns.
Know what happens next
Ask the sweep about the cause, the options and the estimate before work starts.
Common questions about chimney damper repair
How long should I wait to close the damper after a fire?
Leave the damper open until the ashes are cold, which can take many hours. Smoldering embers produce carbon monoxide that needs to vent. When not in use, a closed damper keeps drafts out.
What is a top sealing damper?
A top sealing damper is mounted at the top of the chimney and closes the flue with a gasket. You open and close it with a handle attached to a cable. Many include a cap and screen.
What causes a damper to stick?
A damper sticks when rust, soot or debris keep the plate from moving. Problems with the control mechanism are another common cause. A sweep can clean it, repair the parts or replace the damper.
Can I close the damper when using gas logs?
With vented gas logs, the damper has to stay open so carbon monoxide and other gases can go up the chimney. A closed damper with logs burning is a serious carbon monoxide risk. If you smell gas, leave the house without touching switches and call the gas utility or 911 from outside.
Can I use my fireplace if the damper is broken?
That comes down to how it is broken: a damper stuck shut makes the fireplace unsafe, while one stuck open mainly wastes heat. One that is stuck open is mostly an energy and comfort problem. It is best to have it fixed first.
More questions? Call (240) 622-3033
Other services that may help
Chimney Cap Installation
Fitting a metal cap over the top of the flue sized to the flue tile or the whole crown.
Learn moreFireplace Repair
Repairing smoky, drafty or damaged fireplaces from the hearth and firebox to the damper and doors.
Learn moreSmoke Chamber Repair
Repairing the sloped masonry above the damper where smoke funnels into the flue in older masonry fireplaces that were never finished smooth.
Learn moreChimney Animal Removal
Removing birds, raccoons, squirrels and nests from the flue, smoke shelf and damper, and cleaning up what they left behind.
Learn more
Looking for something else?
See all chimney servicesTalk to a La Plata chimney sweep about chimney damper repair
Call (240) 622-3033 to talk to a chimney sweep serving La Plata, MD.
(240) 622-3033
Free to call. No forms to fill out.