Chimney Masonry Repair

Masonry is deceptively simple: brick, stone, mortar. But when it starts to fail, the causes and cures require real understanding. Spalling brick, cracked joints, and deteriorated mortar all trace back to water and freeze-thaw damage, and repairing them properly means matching materials and technique to the original — not just smearing on new mortar.

Frank & Sons repairs brick and stone chimney masonry throughout the Pittsburgh area. We address the damage you can see and the water intrusion causing it, so the repair actually lasts instead of failing again a couple of winters later.

Signs of masonry trouble

• Brick faces flaking, pitting, or popping off (spalling).
• Cracked or missing mortar between bricks or stones.
• White efflorescence staining the masonry surface.
• Gaps opening at corners or where the chimney meets the roof.
• Loose or shifted bricks, especially near the top.

Repairing it correctly

The wrong mortar can do more harm than good — mortar that's harder than the surrounding brick traps moisture and accelerates spalling. We match mortar type and technique to your masonry, replace damaged brick, and rebuild joints so the repair works with the structure rather than against it.

Because water is almost always the underlying culprit, we also address how it's getting in — crown, cap, flashing, or simply porous, unsealed brick — so the repaired masonry stays sound. Waterproofing is often the final step that protects the whole investment.