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    Indiana, Illinois, and Michigan

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  • Commercial Roofing

  • Versico provides a wide range of quality products for GBI. Versico manufactures EPDM membranes that come in a variety of widths, TPO membranes which provide excellent energy efficiency and weather resistance and a broad range of PVC manufactured with high quality standards for durability, dependability and long-term performance.

  • Modified Roofing Built-up & Single-Ply

    Versico has been instrumental in developing today's technology in the commercial roofing industry, offering time-tested solutions for commercial roofing needs. Versico membranes and roofing systems ensure that you'll receive a roof that will provide years of protection on your valuable investments.

  • GenFlex Roofing Systems is a leading, full-line supplier of high quality single ply and isocyanurate roofing products for the commercial roofing market for over thirty years. At GenFlex, we live to tackle – and solve – the toughest challenges in roofing. The result is a full line of proven, durable roofing systems and components that provide you with quality, ease of installation and complete warranty coverage. Because when it comes to meeting your needs, we just “get it.”

  • We are certified by top manufacturers to install high quality commercial roofing materials and systems.

    GBI Roofing can repair and install roofing systems on office buildings, malls, manufacturing facilities, multi-unit housing, apartment buildings, churches, schools, municipal buildings, condominiums and warehouses. We also offer scheduled roof maintenance programs that can greatly extend the life of a roofing system at a fraction of the cost of replacement.

    Our crews are experts in every aspect of design, construction, and installation of commercial roofing systems so that your Indiana commercial roof is completed on time and on budget.

    GBI is experienced in the installation and repair of all commercial and industrial roof types, including:

    • Built Up Roofing
    • Modified Bitumen Roofing
    • Single-Ply Roofing
    • Asphalt Roofing Shingles

    GBI also offers roof maintenance programs that can greatly extend the life of your Indiana commercial roof at a fraction of the cost of replacement.