Top sealing dampers chosen and fitted in Flagler Village
A top damper can close an idle flue against rain and animals, as long as it suits the fireplace.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
When a chimney top damper makes sense in Flagler Village
- Outside noise carrying down the flue
- Lid that will not open fully
- Birds or insects coming down the flue
- A cap that no longer keeps rain out
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Top sealing damper choices explained
What the building code says about dampers
The Florida Building Code requires a masonry fireplace to have a damper. The code allows it in the fireplace itself or higher up in the chimney serving it, provided it can be worked from the same room as the fireplace. A cable-worked damper at the flue top fits that description.
The code also calls for a ferrous metal damper, and some top dampers are made largely of aluminum. We check a product's material and listing against that rule before recommending one, and we tell you what we checked and why. That way the new damper answers to the code as well as to the fireplace.
Measuring the flue for a top damper
Top dampers come in sizes and shapes to suit common flues. The measurement that matters is the flue opening and the tile around it, including the tile's shape and how far it stands above the crown. A damper sized by eye from the ground rarely fits.
We measure during the free inspection and record the figures on the estimate. Where the flue falls between standard sizes, we explain which adapter, if any, the maker offers for it. The damper you approve is then the one that fits your flue.
Telling at a glance that the lid is open
On many cable dampers, the handle or lug hangs noticeably lower or higher when the lid is open than when it is shut. That visual cue is how you know the flue is clear without looking up the chimney.
At handover, we show you what open and closed look like on your damper and have you try both. If you ever cannot tell which position it is in, treat it as closed and do not light a fire. That habit protects the room from smoke far better than guessing.
A top damper that will not open
A lid that stays shut when the handle is released usually has one of a few causes. The cable may have slipped or frayed, the spring may have weakened, the hinge may have corroded or the gasket may have stuck to the frame.
Leave the fireplace unlit while the lid is shut. Tell us what the handle does when you release it, whether it moves freely or feels locked. We check the lid, hinge, spring and cable from the roof and the firebox, and we explain whether a part or a new damper is needed.
Looked at during a free damper inspection
- Product restrictions checked against the fireplace
- Flue shape and size measured
- Flue top covered if work pauses overnight
- Written record of the damper work
Your top sealing damper questions answered
Does the damper also work as a chimney cap?
Some models include a cap and screen, while others are made to sit under a separate cap. We tell you which type we are proposing and whether your existing cap stays, comes off or needs replacing.
How soon can I use the fireplace after installation?
The adhesive under the frame needs time to set before the fireplace is used. We tell you the maker's set time at handover and write it on the record, so the next fire waits until the seal is ready.
Will the open lid slow the smoke leaving the chimney?
A properly sized damper should open wide enough not to choke the flue, and some designs are made to sit clear of the smoke path when open. We check the lid opening against the flue and tell you what we found.
More Ways to Care for Your Fireplace
- Chimney TuckpointingRenew deteriorated mortar joints around chimney bricks that can appropriately remain.
- Chimney RebuildRebuild the affected chimney section with the retained structure, roof connection and passage included in the plan.
- 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 WaterproofingTreat suitable chimney masonry after checking the surface, repair needs and product requirements.
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