Fireplace Repair
Cracked firebox, failing damper, tired masonry — we repair the fireplace itself, inside and out.

The fireplace is where the fire actually lives, and it endures enormous heat stress. Over time the firebox brick cracks, the mortar joints deteriorate, the damper corrodes or stops sealing, and the surrounding masonry wears. Left alone, these aren't just cosmetic — cracked firebox mortar can expose the framing behind it to heat.
Roosevelt Chimney Works repairs masonry and prefabricated fireplaces: firebox brick and mortar, dampers, hearths, and surrounds. We fix what makes the fireplace safe and usable, and we're honest about which repairs are essential versus optional.
Signs your fireplace needs repair
- Cracked or crumbling firebrick in the firebox.
- Deteriorating mortar joints inside the firebox.
- A damper that sticks, won't seal, or won't stay open.
- Gaps or cracks in the surrounding masonry.
- Rust, water, or staining in or around the firebox.
How we repair fireplaces
We address firebox damage with the correct materials — firebrick and refractory mortar rated for the heat, not standard brick and mortar that will fail. Cracked joints are repaired to keep heat from reaching the structure behind the firebox, and damaged firebrick is replaced.
We also handle damper repair and replacement, hearth and surround masonry, and the connection into the flue. The result is a fireplace that's safe to use and holds up to the heat, season after season.


Pittsburgh & Western PA context
Fireplaces get heavy use through Pittsburgh's long winters, and that steady heat cycling is exactly what cracks firebox mortar and wears dampers over time. Regular repair keeps a well-loved fireplace safe rather than letting small cracks become real hazards.
Related services
Serving Pittsburgh · Mt. Lebanon · Upper St. Clair · Bethel Park · South Park · Baldwin · Whitehall · Brentwood & many more communities across Greater Pittsburgh.
Fireplace Repair questions
Request Fireplace Repair
Tell us what's going on and we'll help with your fireplace repair needs across Greater Pittsburgh.
- Honest, camera-backed assessments
- Repairs recommended before replacement
- Serving Greater Pittsburgh & ~60 miles around
Ready to get your chimney handled?
Whether it's a routine cleaning, a stubborn leak, or masonry that's seen better winters - Roosevelt Chimney Works is ready to help across Greater Pittsburgh.