A chimney crown is your chimney’s first line of defense against water damage. We build new crowns 4” thick, reinforced with rebar, and designed with a 3” overhang and sloped sides so water sheds away from the brick instead of running down the chimney. This helps prevent issues like brick spalling and long-term weathering.
Many older crowns we remove are thin, poorly formed, or improperly built - sometimes even using wood supports or lacking proper reinforcement. These are replaced with properly constructed concrete systems built for long-term durability.
Once cured, we remove the forms and seal the entire crown with silicone waterproofing. We also leave and seal a small expansion gap around the flue tile to allow for heat expansion, helping prevent cracking and extending the life of the crown.
