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Chimney Damper Repair & Installation

When you’re not enjoying a fire in your fireplace or appliance, you’ll want to be sure to close off your flue using a chimney damper. There are several reasons why a damper is an important part of your system’s functionality.

  • First off, the damper provides another layer of protection against water intrusion. It’s one of many parts of the chimney designed to keep water out (along with a properly-sized and -installed chimney cap, a functional chimney crown or chase pan, well-sealed chimney flashing and more).
  • A damper also helps keep the air you’re paying to cool or heat from exiting through your chimney. A damper that is stuck open or is not closing properly is contributing to wasted energy and wasted money.

Different Kinds Of Chimney Dampers, Explained

There are two main types of chimney dampers that you’ll routinely see in chimneys:

Throat dampers
Many older units will have what’s called a throat damper, which is located in the flue just above the firebox, and is controlled with a knob or handle. These dampers are constructed out of metal, so while they close off the flue, they don’t completely seal it. In a well-maintained chimney system, throat dampers can last a long while, but it’s not uncommon for these dampers to come off of their tracks, or for parts to rust and corrode as a result of water penetration. Given their location in the chimney system, replacing a throat damper can be complicated, labor-intensive work. In most cases when a throat damper is significantly damaged, homeowners choose to replace their old throat damper with a more efficient top-sealing damper.

Top-sealing dampers
Newer fireplaces are usually built with a top-sealing damper, which is installed at the top of the chimney and controlled with a handle (attached to a cable that runs up to the damper). These dampers are easier to install and far more energy efficient, with a gasket that completely seals off the flue when the damper is closed. Homeowners routinely see significant energy savings when a throat damper is replaced with a top-sealing damper (plus, top-sealing dampers offer much better water protection).

Call Us Today!

When a Young’s Chimney Service technician performs your annual chimney sweeping and inspection, all damper problems (like rust, corrosion or displacement) will be noted for discussion. After the inspection, the technician will talk with you about whether repair or replacement is the safest, most efficient option for your particular system.

If you’re experiencing problems with your damper, don’t wait until winter to have it looked at. Give us a call today — a damaged damper makes for an inefficient and potentially unsafe chimney system.


When you think about all the heat in your fireplace, it’s no wonder that the firebox needs repairing at some point. You can always rely on us for this skilled chimney service to keep everything in top working order.

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