Chimney & Flashing Repair in Covina, California

The chimney is the most common leak point on a Covina roof. The metal flashing around the base expands and contracts with the valley heat, and the sealant cracks. Chimney and flashing repair in Covina means sealing the gap before the winter rain finds it.

Signs Your Covina Chimney Flashing Needs Repair

• Water stains on the ceiling near the chimney — the leak is at the flashing
• Cracked or missing sealant at the chimney base — the old caulk has failed
• Rust or corrosion on the step flashing — the metal has aged
• Loose or pulled-away flashing — the thermal cycling moved the metal
• Brick or mortar damage on the chimney — the water got in and froze

Why Covina Chimney Flashing Fails

The thermal cycling is the main cause. The San Gabriel Valley heat bakes the south-facing flashing during the day, and the cool night drops the temperature. The metal expands and contracts, and the sealant at the joint cracks over time.

The winter rain is the test. The water runs down the chimney and hits the flashing. If the sealant is cracked, the water runs behind the flashing and into the attic. The damage shows up as the ceiling stain on the first rainy day.

How We Repair Chimney Flashing in Covina

1. Inspect the chimney — check the flashing, the sealant, and the brick
2. Remove the old sealant — clean the joint between the chimney and the roof
3. Install new step flashing — weave the metal into the roof shingles
4. Apply the counter-flashing — the second layer that covers the step flashing
5. Seal the joints — the new sealant closes the gap

Chimney & Flashing Repair Costs in Covina

Service	Typical range	What’s included	Warranty
Flashing re-seal	$400 – $1,200	Clean and re-seal the existing flashing	2 years
Step flashing replacement	$800 – $2,200	New step flashing, counter-flashing	5 years
Chimney crown repair	$500 – $1,500	Seal the crown, prevent water entry	3 years
Full flashing system	$1,200 – $3,000	Step, counter, and sealant, full install	7 years

Expert tip: in Covina, the chimney flashing should be checked every fall. The summer heat does the damage to the sealant, and the fall inspection catches the cracks before the winter rain tests them.

Serving Covina and Nearby Areas

We repair chimney flashing across Los Angeles County — Covina, West Covina, Azusa, Glendora, San Dimas, and the surrounding San Gabriel Valley communities.

FAQ

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Start with a free chimney flashing inspection. Call us today for local crews.