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2026 leak-detail guide

How much does chimney flashing repair cost?

Chimney flashing is a common leak point where roofing meets masonry. Estimate resealing, targeted repairs, or full flashing replacement before comparing bids.

Minor reseal$200–$400+when flashing is still serviceable
Typical repair$400–$1,600common planning range
Watch forMasonry damagecan expand the scope
Quick answer

Chimney flashing repair or replacement commonly lands around $400 to $1,600, while minor resealing can start around $200.

Cost by repair type

RepairPlanning range
Resealing$200–$400+
Targeted flashing repair$400–$1,000
Full flashing replacement$800–$1,600+

What moves the price?

Chimney size

Larger chimneys require more metal and detail work.

Roof pitch

Steep access increases labor.

Masonry condition

Brick, mortar, crown, and counterflashing issues can add work.

Water damage

Decking or interior damage can extend beyond the flashing.

For a broader leak budget, see roof leak repair cost.

FAQ

Can chimney flashing be repaired without replacing the roof?

Yes, when the surrounding roofing is still serviceable and the failure is localized.

Why does chimney flashing leak?

Common causes include failed sealant, corrosion, movement, poor installation, and masonry deterioration.