Chimney Crown Replacement in the Pittsburgh Area

What chimney crown replacement involves

When a crown is cracked through, crumbling or was poorly built to begin with, replacement recasts it entirely. We form and pour a new crown with the proper slope and overhang so it sheds water away from the flue and the brick.

Why homeowners need it

A failed crown can't be sealed back to health — sealant over a disintegrating crown just buys a little time. Replacing it restores the single most important water-shedding surface on the chimney, and a well-built crown with the right overhang protects the masonry for decades.

Common problems it addresses

• A crown cracked through or crumbling
• A too-thin or poorly sloped original crown
• No overhang, so water runs down the brick
• Ongoing water damage traced to the crown

Warning signs to watch for

• Large cracks or missing chunks of crown
• Persistent damp below the crown despite sealing
• Spalling brick concentrated near the top
• A flat crown with no drip edge

How we approach the work

Materials and equipment

• Reinforced crown concrete or crown-casting material
• Bond break / expansion material at the flue
• Sealant

What this means for Pittsburgh-area homes

A properly built crown — sloped, with an overhang and a gap around the flue tile — is exactly what stands up to Pittsburgh winters. Many older chimneys were topped with a thin mortar wash instead of a real crown, which is why replacement is so common here.