How to Seal Chimney From Bats – Faircloth Chimney Sweeps

Are you tired of bats making themselves at home in your chimney? Well, look no further! Faircloth Chimney Sweeps is here to help you seal your chimney from those pesky creatures.

Bats can cause damage and create a mess in your chimney, but don’t worry, we’ve got you covered. In this guide, we will show you simple steps to keep bats out for good.

You’ll learn how to:

  • Identify potential entry points
  • Install a chimney cap
  • Seal gaps and cracks
  • Trim tree branches near the chimney
  • Use bat deterrents and exclusion devices

With our expert advice, you’ll be able to enjoy a bat-free chimney in no time.

Let’s get started!

Identify Potential Entry Points

To effectively seal your chimney from bats, start by identifying the areas where they may potentially gain entry. Bats can squeeze through tiny openings, so it’s important to thoroughly inspect your chimney for any gaps or cracks.

Begin by examining the exterior of your chimney, looking for loose or missing bricks, deteriorated mortar, or damaged flashing. Check the chimney cap as well, making sure it’s securely attached and has no gaps.

Move on to the interior of the chimney, inspecting the flue and damper for any openings or damage. Pay close attention to the area where the chimney meets the roof, as bats often enter through gaps in this junction.

Install a Chimney Cap

Secure a chimney cap to prevent bats from entering your chimney.

Installing a chimney cap is a crucial step in sealing your chimney and protecting it from bat infestations. A chimney cap is a metal or mesh cover that fits securely over the top of your chimney, creating a barrier that bats can’t penetrate.

This cap not only prevents bats from entering your chimney but also blocks other potential entry points for pests. It’s important to choose a chimney cap that’s specifically designed to keep bats out, with smaller mesh openings to prevent them from squeezing through.

Seal Gaps and Cracks in the Chimney

To effectively seal gaps and cracks in your chimney and prevent bats from entering, you’ll need to inspect the chimney thoroughly for any potential openings.

Start by examining the exterior of the chimney for cracks or loose bricks. Use a flashlight to inspect the interior of the chimney, paying close attention to the area where the chimney meets the roof. Look for any gaps or openings where bats could potentially enter.

Once you have identified these gaps and cracks, you can begin the sealing process. Use a high-quality chimney sealant or caulk to fill in the gaps and cracks. Apply the sealant generously and make sure to cover all areas where bats could potentially squeeze through.

Trim Tree Branches Near the Chimney

Inspect the surrounding trees and trim any branches that are near the chimney to further prevent bats from gaining access. Bats are agile creatures and can easily navigate through small openings, such as gaps in branches or between leaves. By trimming the branches near your chimney, you eliminate potential pathways for bats to enter your home.

Additionally, removing branches that are in close proximity to the chimney reduces the chances of bats roosting on them and eventually finding their way into your house. It’s important to regularly check for any overhanging branches or branches that touch the chimney, as bats can use these as launching points to enter your property.

Taking the time to trim tree branches near the chimney is a proactive step in bat prevention.

Use Bat Deterrents and Exclusion Devices

First, determine the number of bat deterrents and exclusion devices needed for your chimney. The number of bats and the size of your chimney will help you determine the appropriate amount. It’s important to cover all potential entry points to prevent bats from getting inside.

Bat deterrents work by emitting ultrasonic sound waves that are unpleasant to bats, causing them to seek shelter elsewhere. These devices are typically placed near the chimney to deter bats from roosting.

Exclusion devices, on the other hand, are physical barriers that prevent bats from entering your chimney. These can include mesh screens or specialized caps that allow smoke to escape while keeping bats out.

Consult with a professional to determine the most effective bat deterrents and exclusion devices for your specific chimney. Remember, it’s crucial to seal off any potential entry points to ensure a bat-free chimney.


In conclusion, by identifying potential entry points, installing a chimney cap, sealing gaps and cracks, trimming tree branches, and using bat deterrents and exclusion devices, you can effectively seal your chimney from bats.

Taking these steps will help ensure that your chimney remains bat-free and prevents any potential issues that may arise from their presence.


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