Chimney Flashing Repair
The seam where the chimney meets the roof is a top source of leaks. Proper flashing keeps that joint watertight.
Flashing is the metal that seals the joint where your chimney passes through the roof. It's one of the most common sources of chimney leaks, because that seam is constantly exposed to runoff and any failure — corroded metal, failed sealant, or a poor original installation — sends water straight into the roof and ceiling below.
Roosevelt Chimney Works repairs and replaces chimney flashing throughout the Pittsburgh area. Because a leak at the flashing often gets blamed on the chimney itself (or vice versa), diagnosing correctly matters — and flashing is one of the first places we look when a chimney leaks.
Signs of flashing failure
- Water stains on the ceiling near the chimney.
- Rusted, lifted, or visibly damaged metal at the roofline.
- Cracked or peeling tar/sealant around the chimney base.
- Leaks that appear during or right after rain.
- Daylight or gaps visible where chimney meets roof.
How we repair flashing
We assess whether the existing flashing can be resealed and repaired or whether it needs full replacement. Old tar patches and failed sealant are common quick-fixes that don't last; proper flashing uses layered metal (base and counter flashing) integrated into both the roof and the masonry to shed water reliably.
Where flashing has failed at the masonry joint, we cut it properly into the mortar and seal it so water can't get behind it. The result is a roof-to-chimney seam that stays watertight through storms and winters alike.
Pittsburgh & Western PA context
Wind-driven rain and heavy snow loads test flashing hard in Western Pennsylvania. Snow that piles against a chimney and melts slowly finds any weakness in the flashing — which is why flashing failures are a leading cause of the winter chimney leaks we're called to fix.
Related services
Serving Pittsburgh · Mt. Lebanon · Upper St. Clair · Bethel Park · South Park · Baldwin · Whitehall · Brentwood & many more communities across Greater Pittsburgh.
Chimney Flashing Repair questions
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Tell us what's going on and we'll help with your chimney flashing 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.