Chimney damper repair, part by part, in Flagami
Stuck shut, stuck open or dropping during a fire, a throat damper fault usually has a cause we can find.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
When the damper stops doing its job
- Handle swings with no resistance
- Plate stays open and will not close
- Control that needs force to move
- No damper visible above the opening
Jump to
Fixing the damper you already have
If a carbon monoxide alarm sounds
If a carbon monoxide alarm sounds while the fireplace is in use, get everyone out of the house. Once you are outside, call 911 and wait there until responders say the house is clear. Do not go back in to close the damper or to put out the fire.
An alarm means the detector has sensed carbon monoxide in the room. A damper that closed on its own or opened only partway is one possible reason, and there are others. Leave the fireplace unused until the cause has been found and the damper and flue have both been checked.
Surface rust versus rust damage
A throat damper often shows some rust, because it sits in a place that gets both heat and moisture. Light surface rust can be cleaned off and does not weaken the plate. Deep scale, flaking layers and pitting are another matter.
We check how much sound metal is left in the plate and frame and whether rust has reached the pivots. Where the metal is sound, cleaning is enough. Where it has thinned or split, replacement goes on the estimate. The difference is explained on the visit, so you can see why one damper is kept and another is not.
Keeping the written record of damper work
The written record of the work lists the damper parts and what was done with each. It notes the control type, any part numbers and anything we saw that was left outside the job.
That record is useful later. It helps the next person who works on the fireplace, and it answers questions when a home is sold. If the same fault appears again, the record shows what was done and when. Keep it with the fireplace manual, if you have one, and bring it out at maintenance visits.
The lintel below the damper
The lintel is the noncombustible support across the top of the fireplace opening, often a steel angle. The throat and damper sit just above it. A sagging or rusted lintel can crowd the damper frame and make the plate bind.
If the lintel shows movement, we note it and explain what it means. Lintel repair is a separate item from the damper and may affect how the damper work is done. The two sit on separate lines of the estimate, each with its own reason, so it is clear which repair answers which problem.
Inside a damper replacement quote
- Rust scale removal from plate and frame
- Mortar drying and curing instructions
- Written record of the damper work
- Nesting material cleared from the plate
Before you approve damper work
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.
Is it normal for a fireplace damper to show some rust?
Yes. A damper sits where heat and moisture meet, so light surface rust is common. Deep scale, pitting or holes are not normal. They usually point to water reaching the plate from above.
Why does the damper rattle when the wind picks up?
A loose plate, worn pivots or a slack control rod can let the plate move in air currents. We find which part is loose and tighten, adjust or replace it. Tell us whether it rattles with the plate open or closed.
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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