Chimney crowns, also known as chimney washes, are the top elements of chimneys. From the flue liners to the chimney edge, it covers and seals the top of the chimney. Because older chimneys are constructed from the same mortar mix as the bricks of the chimney, most chimneys have an inadequate crown. Water will seep into the chimney through cracks, chips, and deterioration caused by years of weather abuse. Shrinkage causes most sand-and-mortar crowns to crack almost immediately. To protect all sides of the chimney, a proper chimney crown should be constructed from cement and cast (or formed) so that it extends at least two inches beyond the exterior chimney walls. This is called an overhang (also called a drip edge). Using the drip edge, runoff from the crown is directed away from the chimney’s vertical surfaces, preventing erosion. Our chimney crown repair service in NJ can tackle minor resurfacing repairs, waterproofing, and more extensive masonry projects, including rebuilding chimney crowns.