How to Repair a Bulging Chimney

Damages are a certainty with all chimneys. Between the weather and frequent usage, cracks form within your chimney causing water leaks. This damage will hinder the proper operation of your fireplace. They could also lead to large openings from which animals will gain access to your home's interior.

Step 1: Remove all damaged mortar and masonry using a hammer and chisel. Clean up all of the pieces of mortar to ensure a safe work area.

Step 2: Apply and sculpt mortar onto the chimney.

Step 3: Ensure that the mortar is smooth over the bricks in a downward slope. It should run in the opposite direction that the flue. Fill in all cracks and crevices to secure the mortar and prevent leaks.

Step 4: Repair any other discovered damages by repeating Steps 1-3.