Crown cracks letting water into the flue
Why it happens here
The crown takes the worst of the weather. Freeze-thaw cycles open hairline cracks, and once water gets in, it freezes, expands and widens the crack. East Bridgewater chimneys with original crowns are especially vulnerable.
Our approach
We rebuild the crown with a proper slope and flexible sealant instead of patching the crack. That gives water somewhere to go and stops the leak at the source. Most crown repairs here take two to four hours.