Chimney Damper Caps: Seal In Comfort, Keep the Elements Out

If you’ve ever felt a cold draft coming from your fireplace - even when it’s not in use - your chimney damper might be the reason.
A damper cap, also known as a top-sealing damper, is one of the best upgrades you can make to improve energy efficiency, stop drafts, and protect your chimney from the elements.

While a traditional damper sits inside the throat of your fireplace, a damper cap sits right at the top of your chimney, working as both a seal and a protective cap. It’s smart, efficient, and designed to keep your home comfortable all year long.

What Is a Damper Cap?

A damper cap is a combination of two important chimney components - a weather cap and a sealing damper - built into one.
It’s mounted at the top of the flue and connected to a stainless-steel cable that runs down to a small handle inside your fireplace.

When you pull the handle, the damper cap opens, allowing smoke and gases to escape while your fireplace is in use.
When closed, it creates a tight, weatherproof seal - preventing cold air, rain, and even pests from getting inside.

Professional Installation by Our Team

Installing a damper cap requires precision and expertise - it must align perfectly with the flue and seal tightly to prevent leaks or airflow issues.
Our professional team carefully measures, installs, and tests every unit to ensure smooth operation and lasting performance.

We typically recommend stainless steel damper caps for their durability and weather resistance, though we also install other high-quality materials depending on your system’s needs.

During installation, our technicians also inspect your flue, crown, and masonry for any damage - ensuring your entire chimney top is fully protected.

Upgrade Your Chimney with a Damper Cap

If your old damper no longer seals properly, or you want to stop losing heat through your chimney, a damper cap is the perfect solution.
It’s a simple upgrade that adds comfort, protection, and long-term value to your home.

Our professional team specializes in damper cap installation, ensuring a perfect fit and a reliable seal every time.

let our experts help you save energy, stop drafts, and protect your chimney from the top down.

Why a Damper Cap Is Better Than a Traditional Damper

Most older fireplaces use a throat damper, located just above the firebox. Over time, those metal plates warp, rust, or lose their seal — allowing air leaks that waste energy and money.

A top-sealing damper cap, on the other hand, provides:

Complete weather protection — keeps rain, snow, and debris out.

Better energy efficiency — seals tightly to stop heat loss and cold drafts.

Improved indoor comfort — no more cold air falling through the chimney.

Pest prevention — keeps birds, squirrels, and insects out of your flue.

Longer chimney life — reduces moisture that can damage liners and dampers below.

In short, it’s one upgrade that improves both your comfort and your chimney’s durability.

How It Works

When the damper cap is closed, a silicone gasket seals the top of the flue completely - much tighter than any throat damper ever could.
When it’s open, the spring-loaded mechanism lifts the lid so smoke and gases can flow freely during a fire.

The control handle inside your fireplace makes operation easy - simply pull the chain or lever to open it before lighting a fire, and close it again once the fireplace is cool.

A Smart Way to Protect and Save

By combining the functions of a chimney cap and damper, a top-sealing damper cap does double duty:
It keeps your home’s conditioned air inside, and the elements outside. Over time, that means lower heating and cooling costs, fewer drafts, and a cleaner, drier chimney.

Upgrade Your Chimney with a Damper Cap

If your old damper no longer seals properly, or you want to stop losing heat through your chimney, a damper cap is the perfect solution.
It’s a simple upgrade that adds comfort, protection, and long-term value to your home.

Our professional team specializes in damper cap installation, ensuring a perfect fit and a reliable seal every time.

let our experts help you save energy, stop drafts, and protect your chimney from the top down.

Book an Appointment Today!