Cedar shake, natural slate, and copper on estate homes across Winnetka, Glencoe, Lake Forest, Kenilworth, and Highland Park. Family-owned since Jan Koszyk founded the company in 1996. English and Polish.
Leaders Roofing built its reputation on the materials that define North Shore architecture — the ones that require real expertise, not just a crew and a truck. Cedar from the best mills. Slate sourced by country of origin. Copper detailed by hand. Thirty years of this work on the same streets.
Western red cedar from Watkins, Waldun, and Anbrook. Hand-split and resawn shakes for North Shore estate homes — properly installed to last 30 to 40 years.
Cedar shake roofing →Welsh, Vermont, and Pennsylvania slate for historic restorations. DaVinci, Brava, and EcoStar synthetic for new builds where weight is a constraint.
Slate roofing →Copper step flashing, valleys, and standing-seam panels hand-formed on site. The only material that improves with age — appropriate for the homes in this market.
Copper roofing →Complex rooflines, architecturally significant materials, crews who know how to work on homes where the details matter as much as the membrane beneath them.
Estate roofing →Residential and commercial. Repairs through full replacements. Every project backed by a workmanship warranty and Jan Koszyk's name.
Full tear-off and replacement using systems built for Chicagoland weather. Shingles, flat roof, and commercial.
Leak diagnostics and targeted repairs to extend your roof's life and stop small problems before they get expensive.
Installation, repairs, and cleaning. Good gutters protect everything underneath them — we make sure yours do.
Siding installation and repair for long-term weather protection and better curb appeal.
Flat roof systems, TPO, EPDM, and built-up roofing for commercial properties of all types and sizes.
Professional roof assessments to document condition, flag risks, and give you a clear picture of what's next.
"We've worked with Leaders Roofing for 16 years across two commercial buildings and our cedar shake roof in River Forest. Professional crew, outstanding quality work, and great communication every time."
"I'm a property manager and I've been working with Leaders Roofing for years. They can handle any type of roofing job, big or small. Always a great job at a fair price."
"We worked with Leaders Roofing on multiple projects. Great company to do business with. Honest, clear communication, and always quality work."
No pressure, no obligation. Just a straight answer about what your property needs.