Chimney Crown Rebuilding

When a chimney crown has deteriorated too far for coating — crumbling, cracked through, or missing chunks — it needs to be rebuilt. And often the original crown was the problem all along: many were built flat, without the slope and overhang that direct water away from the masonry, so they failed early and took the masonry below with them.

Frank & Sons rebuilds crowns to do the job correctly: a properly sloped concrete crown with an overhang (a drip edge) that carries water clear of the chimney walls. Done right, a rebuilt crown protects the entire structure beneath it for decades.

When a crown needs rebuilding

• The crown is crumbling or has large missing sections.
• Cracks are too extensive for a coating to seal.
• The original crown is flat with no water-shedding slope.
• There's no overhang to direct water off the masonry.
• Crown failure has already caused masonry damage below.

Building a crown that lasts

We remove the failed crown and build a new one with the details that make crowns last: a slope to shed water, an overhang with a drip edge to carry runoff clear of the chimney walls, and an expansion joint around the flue so normal movement doesn't crack it.

These details are exactly what most failed crowns were missing. A properly built crown is the difference between protecting the masonry for decades and repeating the same failure in a few years — so we build it to endure.