is supported by readers and may earn an affiliate commission.

Rather have a pro do it for you?

How to Repair a Chimney Crown

DIY Guide: Fixing Your Chimney Crown in a Few Easy Steps

A chimney crown is an essential part of your chimney system, as it acts as a protective layer for your chimney's masonry. However, due to weathering and other factors, the chimney crown may become damaged or cracked. If left unaddressed, this can lead to water damage and other structural issues. In this article, we will guide you through the steps to repair a chimney crown.

Step 1: Assess the Damage
The first step in repairing a chimney crown is to assess the damage. Look for any cracks or holes in the crown. If the damage is minor, you may be able to repair it yourself. However, if the damage is significant, it is best to call a professional.

Step 2: Clean the Area
Before you begin repairing the chimney crown, you need to clean the area thoroughly. Remove any debris, such as leaves or twigs, from the chimney crown. Use a wire brush to remove any loose debris or mortar. This will ensure that the repair material adheres properly to the chimney crown.

Step 3: Apply the Repair Material
Once the area is clean, you can begin applying the repair material. There are various types of repair materials available, such as chimney crown sealant or mortar mix. Follow the manufacturer's instructions carefully to ensure that you mix the repair material correctly.

Using a trowel, apply the repair material to the damaged area. Smooth it out to ensure that it is level with the rest of the chimney crown. If necessary, apply a second layer of repair material once the first layer has dried.

Step 4: Allow the Repair Material to Dry
After applying the repair material, allow it to dry completely. This can take several hours or even a day, depending on the type of repair material you used and the weather conditions.

Step 5: Apply a Sealant
Once the repair material has dried, apply a sealant to the chimney crown. This will help to protect the repair material and prevent water from seeping into the chimney.

Step 6: Inspect the Chimney Crown Regularly
To ensure that your chimney crown remains in good condition, inspect it regularly. Look for any signs of damage or cracking, and address them as soon as possible.

In conclusion, repairing a chimney crown is a task that can be done by homeowners with some DIY experience. However, if the damage is significant, it is best to call a professional. By following these steps, you can ensure that your chimney crown remains in good condition and your chimney system functions properly.