Top sealing dampers chosen and fitted in Margate
We check the fireplace, the flue and the product rules before a top damper is recommended.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
What a failing damper looks like in Margate
- Daylight visible up a closed flue
- Worn or torn gasket at the top
- Birds or insects coming down the flue
- Old damper plate stuck part-way
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Top mount damper work in Margate
Why some dampers must stay fixed open
One vented decorative gas appliance manual supplies a damper clamp. Its job is to stop the damper from closing fully, and the same manual says the damper must not be sealed. The aim is to keep a permanent path for exhaust to leave.
A top sealing damper does the opposite. It is built to seal the flue when closed. Where an appliance needs a permanent opening, a sealing damper at the top works against it. That is one of the clearest cases where we advise against a top damper and explain what else can be done.
One damper among several flues
On a chimney with several flues, a multi-flue cap may cover all of them. A top damper, by contrast, seals only the fireplace flue and needs its own space to open. The two can conflict if the cap sits too low.
We look at how the flues are arranged and what covers them now. Sometimes the damper fits under the existing cap. Sometimes the cap has to be raised or changed to give the lid room. We explain the arrangement and list any cap work separately from the damper.
Leave the flue top to us
A top damper is installed and serviced from the roof, and the flue top is often the hardest place on a house to reach. One damper maker's instructions recommend professional installation for that reason.
Please do not climb up to look at the damper, free a stuck lid or adjust the cable from above. Describe what the handle does from inside the room, and we take it from there. We bring the ladders and the safety gear, and we look at the roof around the chimney while we are up.
Roof work for a top damper inside the HVHZ
Broward County falls within the part of Florida that the building code designates HVHZ, and roof and exterior work there is subject to that zone's provisions.
Fitting a damper to the flue top may leave the roof covering untouched. If the job extends to the crown, the flashing or the roof around the chimney, ask which provisions govern that work before you approve it. We explain our understanding of what the specific work requires. We make no claim that a product carries an approval it does not have.
Line items on a top damper estimate
- Flue shape and size measured
- Lid opening and closing tested
- Operating walk-through at handover
- Firebox protected during drilling
Before you add a top damper in Margate
Can I add a top damper if gas burns in the firebox?
Usually not with the common products. A vented decorative gas appliance needs the damper held fully open while it burns, and several top damper products are marked not for that use. We read both sets of instructions before giving you an answer.
Does a top damper replace my old throat damper?
It takes over the job of closing the flue. The old throat damper is then fixed open, removed or left in place, depending on its condition and the fireplace. We explain which applies and list it on the estimate.
Where does the handle go inside the fireplace?
A bracket is anchored into the firebox wall on the side you find easier to reach, and the cable passes through it to the handle. We drill with a masonry bit and set the anchors carefully to avoid cracking the firebrick.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo