A Homeowner’s Guide to Chimney Caps & Chimney Leaks

A chimney cap is a protective cover that sits on top of your chimney. It’s usually made of stainless steel or galvanized metal and is designed to:

• Prevent rain and moisture from entering the flue
• Keep animals and debris out (think squirrels, birds, leaves, and more)
• Minimize downdrafts that can bring smoke or soot back into your home

Chimney caps don’t just serve a function—they can complement your home’s exterior, too. At Matt’s Exteriors, we offer a variety of styles to fit your aesthetic and architectural needs:

A flat metal cover that seals off the top of the chimney chase. This is your essential, no-frills layer of protection against rain intrusion and debris. Ideal for homeowners looking for simple, effective moisture control.

A step above the basic pan, this setup includes a chimney pan plus a shroud that encloses the flue pipe and adds architectural interest. Pan and shroud systems are great for homes needing better water protection and a more finished appearance.

Featuring a pitched, sloped top (like a miniature roof), the hip-style cap is designed to shed water more efficiently and hold up better in storm-prone areas. They also include a mesh screen on all four sides to prevent animals like birds, squirrels, and other critters from entering and nesting inside the chimney. This option blends function with a refined look and works well on a variety of home styles.

For homeowners who want their chimney to make a statement, we offer custom decorative caps crafted to match the style and color scheme of your home. These caps offer the same protection as standard ones but with a tailored, upscale aesthetic.

Why Chimney Caps Help Stop Leaks

A chimney cap can help prevent water pooling and water damage to your chimney. Water can find its way in through cracks in mortar, faulty flashing, or directly down an open flue. Here’s how a chimney cap helps:

• It redirects water away from the chimney opening
• It protects the crown and liner, extending their life
• It reduces freeze-thaw damage in colder seasons
• It works in tandem with proper flashing to help create a watertight seal

Most Common Chimney Leaks

Bad chimney flashing

At Matt’s Exteriors, we can help fix all common chimney-related issues—including faulty flashing, deteriorated mortar, rotted siding, missing caps, and roof tie-in problems. Our team inspects the full system and provides the right solution to stop the leak and protect your home.

Conclusion

Chimney leaks can come from multiple sources—damaged flashing, damaged mortar, and missing or damaged chimney caps. We inspect the entire system to find the cause and fix it properly.

Whether you need a new chimney cap, chimney flashing, chimney mortar repair, or chimney siding repair we’ll make sure it’s installed correctly and works with the rest of your roof system.

FAQ (Frequently Asked Questions)

Do I need a chimney cap if I don’t use my fireplace?

Yes. Even if you don’t use the fireplace, water, debris, and pests can still enter through the chimney. A properly installed cap protects the entire structure from long-term damage.

Can a chimney cap stop an existing leak?

It depends. A cap can prevent rain from entering the flue, but most chimney leaks are caused by flashing failures or cracks in the crown. We inspect the full system to identify the source before making any repairs.

How long does it take to install a new chimney cap or pan?

Most installs can be completed in one day or less, depending on access and whether additional repairs (like flashing) are needed.