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Buffalo Grove, Lake/Cook County, IL

Chimney Flashing Repair in Buffalo Grove, IL

Professional chimney flashing repair for Buffalo Grove homeowners. Registered, insured, and same-day scheduling available.

Chimney Flashing Repair in Buffalo Grove: What You Need to Know

Chimney flashing failure is a leading cause of roof leaks in Buffalo Grove homes. Buffalo Grove is predominantly 1970s–90s split-levels and colonials, with a high percentage of wood-burning fireplaces built during that era. These fireplaces see heavy use during Illinois winters and require regular professional maintenance. The split-level design common in Buffalo Grove also means many dryer vents run long horizontal distances through finished lower levels — a configuration that accumulates lint faster and requires professional cleaning to clear completely. The combination of aging metal flashing and Illinois winters — with ice dams forming at the chimney-roof junction — makes flashing inspection and repair a priority for homeowners in this area.

Chimney Flashing Repair — Our Work in Buffalo Grove

Rusted corroded chimney flashing metal at roof junction close up
Roofer sealing chimney base with caulk and waterproof sealant
Ice dam forming at roof chimney junction in Illinois winter

About Chimney Flashing Repair

Chimney flashing consists of two components: step flashing (L-shaped pieces of metal that interleave with the roof shingles along the sides of the chimney) and counter flashing (metal that's embedded in the chimney mortar joints and laps over the step flashing). Together, they create a watertight seal at the chimney-roof junction. Flashing is typically made of aluminum, galvanized steel, or copper. Over time, the mortar holding counter flashing in place deteriorates, the metal corrodes or separates, and the seal fails.

Failed chimney flashing is one of the top three causes of roof leaks in older homes. Water that enters through failed flashing can damage roof decking, attic insulation, ceiling drywall, and wall framing. In Illinois winters, ice dams can form at the chimney-roof junction and force water under the flashing. Addressing flashing failure promptly prevents far more expensive structural repairs.

Signs You Need It

  • Water stains on the ceiling directly adjacent to the chimney
  • Visible gaps between the flashing and the chimney masonry
  • Rust stains running down the chimney exterior
  • Flashing that's pulling away from the chimney or roof
  • Caulk or tar patches on the flashing (sign of previous amateur repairs)
  • Water in the firebox after rain

Our Process in Buffalo Grove

1

Leak source confirmation

We inspect the full chimney-roof junction to confirm flashing failure is the source of the leak and identify whether step flashing, counter flashing, or both need attention — ruling out crown and cap as contributing factors.

2

Old flashing removal

We carefully remove the failed flashing, clean the substrate, and prepare the chimney mortar joints for new counter flashing installation. We remove all old caulk and tar patches.

3

New flashing installation

We install new step and counter flashing using appropriate materials (aluminum, galvanized steel, or copper), properly interlacing with the roof shingles and embedding counter flashing in fresh mortar.

4

Sealing and final inspection

We apply a high-quality roofing sealant at all joints and transitions, and inspect the surrounding roof area for any related damage that should be addressed.

Typical Pricing in Buffalo Grove

Upfront pricing — written estimate before any work begins.

ServiceTypical Range
Counter flashing re-embedding (mortar only)$200–$400
Full flashing repair (step + counter)$400–$700
Full flashing replacement with copper$700–$1,200

Why Buffalo Grove Homeowners Trust GEM

Registered in Illinois
Fully insured (General Liability)
Same-day scheduling available
Upfront pricing — no surprises
Written inspection reports
5-star rated across the northwest suburbs

Schedule Chimney Flashing Repair in Buffalo Grove

Same-day scheduling available — takes 30 seconds.

Or call us directly:773-900-4838

Frequently Asked Questions

GEM Chimney & Duct
Wheeling, IL & Northwest Chicago Suburbs

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Buffalo Grove Service Area