A chimney top damper fitted properly in Durrs
Round flue, stainless liner or square tile, the damper and its adapter are matched to it.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
Damper trouble that points to a top damper
- Outside noise carrying down the flue
- Handle bracket loose in the firebrick
- Stiff pull on the damper chain
- Plans to leave the fireplace idle
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The details behind a sealing top damper
Cleaning the flue before the damper goes on
The damper frame bonds to the tile top, and the flue beneath it is about to be closed off at the top. It makes sense to clean the flue first. One damper maker recommends having the chimney cleaned when the damper is installed, to help make sure the flue is in good working condition.
Cleaning is priced on its own, apart from the damper, and you can take it or leave it. We tell you what we saw in the flue and whether cleaning is needed before bonding the frame. We will not seal a dirty tile top and hope it holds.
Insulated lids and condensation
One maker builds an insulated lid for its damper cap, with a layer of insulation between two sheets of steel, to reduce condensation on the lid. Other models use a single metal lid.
Whether that matters on your chimney depends on how the fireplace is used and on the model you choose. We describe the options honestly and do not claim that one design suits every flue. The estimate names the lid construction, so you know what you are paying for.
A broken or slipped cable
A broken or detached cable changes how the lid can be controlled. On a spring-open damper, releasing cable tension may allow the lid to rise. A damaged hinge, stuck gasket or other fault can still stop it from opening. The cable failure alone does not establish the lid position.
Keep the fireplace unused until the lid can be confirmed fully open and the control fault is repaired. Do not climb onto the roof or try to force the mechanism from below. We identify the damper model, check the lid, spring, hinge and cable, and fit compatible replacement parts where the manufacturer permits repair.
Same-day damper work when it is available
Same-day service is available when the schedule allows. A cable or handle replacement on a damper we can identify is often a one-visit job. A new top damper may also go in on the day, if the flue and tile top are ready and the right model is on hand.
Adapters, access plates and tile repair can mean a second visit. We tell you at the inspection which applies. Even when a same-day installation is available, the estimate is written and approved before anyone starts drilling or bonding.
What a top damper proposal should name
- Adapter for a round or lined flue
- Flue cleaned before the frame is set
- Operating walk-through at handover
- Set time before the next fire
Top damper questions, answered for Durrs
What does a top sealing damper actually do?
It closes the flue at the chimney top with a lid and gasket, opened and closed by a cable that runs down to the fireplace. When shut, it keeps rain, animals and outside air out of the flue. When open, smoke leaves as normal.
How do I open the lid before lighting a fire?
Release the handle from its bracket so the spring lifts the lid. Most designs show a clear open position at the handle. If you cannot tell that the lid is open, do not light the fire, and ask us to check it.
Is a top damper worth it if the fireplace sits idle?
It can be. A damper kept shut between fires keeps weather, animals and outside air out of an idle flue. The lid still has to be opened before any fire, so the handle should be easy for you to reach.
More Ways to Care for Your Fireplace
- Stone Chimney RepairRepair affected stone chimney surfaces with the supporting construction and visual match considered together.
- Spalling Brick Repair and Chimney Brick ReplacementReplace deteriorated chimney bricks while retaining suitable surrounding masonry.
- Gas Fireplace VentingAssess and repair the gas fireplace vent arrangement using components suited to the identified system.
- Prefab and Zero-Clearance Fireplace RepairIdentify and repair manufactured fireplace components using the appropriate model information.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo