A chimney crown is the concrete or masonry surface at the very top of a masonry chimney. Its purpose is to direct rain, snow, and melting ice away from the chimney structure so moisture does not penetrate the brickwork, mortar joints, or flue system.

Common signs include visible cracks, crumbling concrete, missing sections, water stains, deterioration around the top of the chimney, or recurring chimney leaks. Because some crown damage is difficult to see from the ground, a professional chimney inspection may be needed to determine its condition.

Yes. Cracks in a chimney crown can allow rain and melting snow to enter the masonry below. Over time, repeated water exposure can damage mortar joints, bricks, flue components, and other parts of the chimney. Repairing crown damage early can help prevent more extensive deterioration.

Chimney crowns can crack because of age, moisture exposure, poor construction, improper materials, insufficient thickness, and repeated freeze-thaw cycles. Kansas weather can be especially hard on masonry because water that enters small cracks can freeze, expand, and make the damage worse.

Yes, if the crown is still structurally sound and the damage is relatively minor. Small cracks and surface deterioration can often be sealed and reinforced with a specialized crown coating. More severe deterioration, major cracking, or improper construction may require a complete rebuild.

CrownCoat is a flexible waterproof coating designed specifically for masonry chimney crowns. It helps seal small cracks and create a water-resistant barrier while allowing for normal expansion and contraction as temperatures change.

A full rebuild may be recommended when the crown has extensive cracking, large missing sections, severe deterioration, improper slope, inadequate overhang, or weak construction. Rebuilding allows the crown to be properly formed with durable materials and designed to shed water away from the chimney.

A properly sloped crown helps rainwater and melting snow drain away instead of pooling around the flue or soaking into the masonry. Standing water can accelerate cracking, deterioration, and freeze-thaw damage over time.

The crown should extend past the chimney walls so water drips away from the brickwork instead of running directly down the sides of the chimney. Proper overhang helps protect the masonry and mortar joints from repeated moisture exposure.

Yes. When water enters small cracks and temperatures drop below freezing, the water expands. Repeated freezing and thawing can widen cracks and cause sections of the crown or surrounding masonry to break apart. This is a common concern for chimneys exposed to Kansas winters.

If the crown is the source of the leak, repairing or rebuilding it can help stop water from entering through the top of the chimney. However, chimney leaks can also come from flashing, masonry, chimney caps, chase covers, or other components, so a professional inspection is important before determining the correct repair.

Turn of the Century Chimney provides chimney crown repair and rebuilding throughout Wichita and surrounding Kansas communities, including Andover, Derby, Bel Aire, Maize, Goddard, El Dorado, Park City, Valley Center, Augusta, Eureka, Winfield, and nearby areas. Our team can inspect the crown, determine the extent of the damage, and recommend repair or rebuilding when appropriate.