About
With over 33 years of Duro-Last installation experience and flat roof warranties extending up to 50 years, Warner Commercial Roofing brings serious credentials to facility managers and property owners across Appleton and Northeast Wisconsin's Fox Valley region. Founded in 1997 by Steve Warner — who learned the trade from his father — this family-owned operation has built its reputation on commercial flat roof replacement, repair, and long-cycle maintenance for small and medium-sized businesses throughout the area. As an exclusive Duro-Last contractor, Warner leverages custom-fabricated membrane systems that minimize field seams, reduce installation waste, and deliver one of the strongest manufacturer warranties available in the commercial roofing market. For facility managers overseeing office buildings, retail centers, industrial facilities, warehouses, or institutional properties, that translates directly into lower long-term risk and fewer surprise failures. The company's commercial flat roof division handles PVC membrane, EPDM, modified bitumen, TPO, built-up roofing, and protective coatings — the full spectrum of low-slope systems common to Northeast Wisconsin's demanding freeze-thaw climate. Steve Warner is personally involved in every installation, a hands-on quality-control approach that resonates with clients who need accountability on large or complex projects. Warner's stated priority of 'no surprises' — open communication, transparent timelines, and on-time project completion — aligns with what facility and property managers require when coordinating roof work around occupied buildings or operational schedules. Emergency repair capabilities round out the service offering for managers who need a reliable local contractor on call. With 40 verified reviews and documented work for churches, businesses, and commercial clients, Warner Commercial Roofing is a well-established resource for commercial property stakeholders in the Appleton, WI market.
