The crown is the concrete slab at the very top of the chimney that sheds water away from the flue and the masonry below. A sound, properly sloped crown is the chimney's first line of defense against water damage.
Cracks let water seep into the masonry below, causing leaks, spalling brick, and freeze-thaw damage that worsens every winter. Repairing or rebuilding the crown stops water intrusion before it reaches the structure or interior.
Yes. We rebuild or seal crowns using materials and detailing that keep the chimney's historic appearance intact while restoring full water protection - important on older and landmark homes.
Often, yes. Combining crown repair with a new chimney cap and breathable masonry waterproofing gives the most complete protection against water, which is the leading cause of chimney deterioration.
A properly rebuilt crown, sloped to shed water and sealed correctly, can protect the chimney for many years - especially when paired with a quality cap and periodic inspections.