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Widen Chicago Chimney & Vent Co.

Chicago Chimney Flashing Repair & Replacement

Stop chimney leaks at the source. Our flashing repair uses premium step and counter flashing with weatherproof sealants built for Chicago's freeze-thaw cycles. Free on-site estimates.

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100+ Suburbs Served
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Upfront pricing · No hidden fees · Free estimates for repairs

Stop Chimney Leaks at the Source

Chimney flashing is the metal seal where your chimney meets your roof. When it fails, water pours into your home — rotting wood, growing mold, and destroying walls and ceilings. In Chicago, freeze-thaw cycles are the #1 killer of chimney flashing. Water gets into tiny gaps, freezes, expands, and breaks the seal wider every winter.

Flashing Repair Cost in Chicago

Simple recaulking and sealing runs $200–$500. Full step and counter flashing replacement with premium materials runs $800–$1,500. Copper flashing (lifetime durability) costs more but eliminates future rust and corrosion. We provide free on-site estimates with photo documentation.

Why Choose a Chimney Company Over a Roofer

Flashing connects two systems — your roof and your chimney. Roofers understand roofs but not chimneys. Our technicians understand both the masonry and waterproofing sides, ensuring the repair addresses the root cause, not just the surface symptom. We embed flashing into mortar joints and use urethane sealants rated for Chicago's extreme temperature swings.

Frequently Asked Questions

How much does chimney flashing repair cost in Chicago?
Chimney flashing repair in Chicago costs $300-$1,500. Simple recaulking runs $200-$500. Full flashing replacement with step and counter flashing runs $800-$1,500. Premium materials like copper cost more but last decades.
How do I know if my chimney flashing is leaking?
Water stains on walls or ceiling near the chimney, damp spots in the attic near the chimney, peeling paint near the chimney, musty odors, and visible gaps between the flashing and chimney or roof.
What causes chimney flashing to fail?
Chicago's freeze-thaw cycles expand and contract metal, breaking seals. Poor original installation, aged caulking, wind damage, animal tampering, and natural corrosion of galvanized steel are the most common causes.
Should a roofer or chimney company fix flashing?
A chimney company is the better choice. Flashing connects two systems — roof and chimney — and chimney professionals understand both the masonry and waterproofing aspects. Roofers typically only address the roof side.

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Helpful Guides

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Chimney Flashing Leaking? Here's How to Fix It (Chicago Guide)

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Ready to Get Started?

Call now for same-week scheduling or request a free estimate online.

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