Chimney flashing fails often in Pittsburgh homes because cold winters make metal expand and contract. Step flashing around the chimney base pulls away from the bricks after years of freeze-thaw cycles in a humid continental climate with cold winters and warm summers. We replace it with new 16-ounce copper or lead-coated copper that holds up better than thin aluminum cheap crews use. Homeowners in Oakland and Shadyside see this leak first during spring rains.
A common mistake is just slapping sealant over old flashing instead of tearing it out. That covers the gap for one season but lets water reach the sheathing in Lawrenceville and Bloomfield houses built before 1950. Allegheny code requires proper counter flashing tucked into the mortar joints on any roof work over 100 square feet. We always pull permits when the job hits that size so the inspection passes without callbacks.
Access on steep Mount Washington roofs adds time because the Duquesne Incline area homes often have limited staging space. We set up proper ladders and tarps before we start so debris does not end up in the yard. The job usually takes one day unless the cricket needs rebuilding or rotted decking shows up once the old flashing comes off.
Why Leaks Start Around Chimneys
Freeze-thaw cycles in Pittsburgh winters push mortar and metal apart. We see it most on south-facing chimneys that get sun during the day then freeze at night.
Chimney Flashing Repair Services We Offer
✓Emergency Chimney Flashing Repair
Same-day leak stop on active water intrusion using temporary lead patches until full replacement.
✓Chimney Flashing Replacement Oakland
Full cut-out and new copper step flashing on two-story homes near Carnegie Museum of Natural History.
✓Chimney Cricket Rebuild Shadyside
Rebuild rotted cricket and install new flashing to divert water on older brick chimneys.
✓Commercial Chimney Flashing Repair
Low-slope roof flashing fixes on buildings in the Strip District using reinforced membrane transitions.
✓Chimney Flashing Repair Squirrel Hill
Replace rusted galvanized flashing with lead-coated copper on homes near Phipps Conservatory.
Chimney Flashing Repair Cost in Pittsburgh, PA
| Service | Typical Range | What Affects It |
|---|---|---|
| Repair chimney flashing leak | $450–$750 | Single story, no deck damage |
| Replace step and counter flashing | $650–$1,100 | Two story, copper material |
| Rebuild cricket and flashing | $900–$1,400 | Includes new plywood and membrane |
| Fix flashing on commercial roof | $800–$1,600 | Low slope transition work |
| Free estimate for chimney flashing repair | Free | On-site visit Mon-Sat 7am-7pm or 24/7 emergency |
Ranges are typical for Pittsburgh, PA and confirmed with an exact written quote before any work starts.
How it works
- 1
Site Check and Leak Trace
We climb the roof, check the flashing joints, and confirm water path with a hose test. Takes 30 to 45 minutes.
- 2
Old Flashing Removal
Cut out damaged step and counter flashing without disturbing the chimney crown. 1 to 2 hours typical.
- 3
New Material Install
Fit new lead or copper pieces, tuck into mortar joints, and seal with compatible caulk rated for Pittsburgh winters.
- 4
Final Water Test
Run water over the repair and check inside for drips before we leave. Add 30 minutes.
Pricing
Prices vary by chimney height and access. Call for a straight number.