A cap is an uppermost item you can see on your house. The crown is needed for waterproofing as well and is typically made of metal, stone or concrete. Water damage resulting from a missing chimney cap is all too common. We remedy this situation by reconstructing the back walls of fireplaces, returning them to their original pristine condition. Improperly built crowns are another common problem. If yours is cracked or poorly constructed, it could allow water penetration or pose a fire hazard. We’ll build a proper concrete crown that’s guaranteed not to crack.