William John Associates (WJA) was founded in 1980 in response to a need for a company to provide accurate and unbiased information of a full range of Roofing Issues. Mr. Wallace and Mr. Joel Hammock have over 60 combined years of roofing experience, and incorporate a detailed knowledge of Roofing Systems and Installation Procedures that differentiates WJA from other more theoretically oriented companies in the industry.
WJA specializes in roofing systems analysis, including manufacturing defects, hail damage, installation and application verification, and bid specifications. They currently work for over 40 insurance companies and have conducted over 40,000 inspections throughout Florida and from Arizona to the Carolinas.
Corporate Clients include: Kerzner International, Walker & Co, Lougheed Resources Group, Starwood Properties, Vestcor Construction, SSW & Bush Construction, The Bove Company, Orlando Museum of Art, H.J. High Construction, Wood Partners, JDR Construction, Alliance Residential, United Dominion Realty Trust, and The Roberston Group.