What is a Chase Cover?

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    If you’re a homeowner with a chimney, you may be familiar with the term chase cover. A chase cover is an essential component of a prefabricated or factory-built chimney. It’s a flat metal cover that sits on top of the chimney chase – a structure that encloses the chimney from the roofline to the top. The primary function of a chase cover is to prevent water, debris, and animals from entering the chimney and causing damage to the chimney’s inner lining, flue pipe, or the house’s interior. In this blog post, we’ll take a more in-depth look at what a chase cover is, its importance, and some frequently asked questions about it.

    What is a Chase Cover Made of?

    A chase cover is typically made of metal, such as aluminum or stainless steel. These metals are durable, rust-resistant, and can withstand harsh weather conditions. However, some older chimney models may have chase covers made of galvanized steel, which is prone to rust and corrosion over time.

    Why Do You Need a Chase Cover?

    A damaged or missing chase cover can lead to several problems, including water damage, pest infestations, and reduced energy efficiency. By installing a high-quality chase cover, you protect your chimney and your home from:

    • Water Damage: A chase cover prevents water from entering the chimney chase and damaging the chimney’s interior, including the flue liner, the firebox, and masonry. Water can cause cracks, rust, or deterioration of the chimney’s structural integrity, which can lead to chimney fires or carbon monoxide leaks.
    • Pest Infestation: A chase cover also keeps pests like birds, raccoons, squirrels, and rodents out of your chimney. Birds and other animals may build nests inside the chimney flue, blocking the airflow and causing fires or releasing harmful gases into your home.
    • Energy Efficiency: A properly installed chase cover prevents drafts and air leaks. These air leaks can cause your home to lose heat in the winter and make your air conditioning work harder in the summer, increasing energy bills.

    How Do You Know if Your Chase Cover Needs Replacement?

    Over time, chase covers may deteriorate due to extreme weather conditions, rust, or normal aging. If you notice any of the following signs, it’s time to replace your chase cover:

    • Cracks or holes on the cover
    • Collapse or sagging of the cover due to water pooling
    • Rust or corrosion on the metal
    • Visible damage or staining in the ceiling near the chimney

    If you’re not sure whether your chase cover needs replacement, contact a professional chimney inspection and maintenance service. They’ll conduct a thorough inspection of your chimney and identify any issues that require immediate attention.

    How to Choose the Right Chase Cover?

    When choosing a chase cover, there are a few factors to consider, such as:

    • Material: Choose a cover made of durable, weather-resistant material, such as aluminum or stainless steel. Avoid galvanized steel, which tends to rust and corrode over time.
    • Size: Ensure that the cover fits your chimney chase precisely. A properly fitting cover prevents water and debris from entering your chimney.
    • Design: Opt for a cover with a sloping design that allows water to drain away from the chimney instead of pooling on the cover’s surface.
    • Installation: Choose a cover that’s easy to install and comes with clear instructions. Alternatively, you can hire a professional chimney service to install the cover for you.


    A chase cover is a crucial part of your chimney system that protects your home from water damage, pests, and energy loss. It’s essential to choose a high-quality, properly fitting chase cover and replace it when necessary. By doing so, you’ll ensure the longevity and safety of your chimney and enjoy greater peace of mind.

    Frequently Asked Questions (FAQs)

    Do all chimneys require a chase cover?

    Not all chimneys require a chase cover. Only prefabricated or factory-built chimneys need a chase cover to protect the chimney’s flue pipe and venting system.

    How often should I replace my chase cover?

    A chase cover can last up to 15-20 years, depending on the material and weather conditions in your area. However, it’s essential to inspect your chimney yearly and replace the chase cover if you notice any signs of damage.

    Can I install a chase cover myself?

    It’s possible to install a chase cover yourself if you have the necessary tools and experience. However, we recommend hiring a professional chimney service to ensure the cover fits correctly and is installed safely.

    What is the cost of a chase cover?

    The cost of a chase cover depends on the material, size, and design. On average, a chase cover can cost between $200-$1000. It’s best to consult a professional chimney service to get an accurate estimate for your specific needs.


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