Since its inception more than 85 years ago, Olsson Roofing Company has become one of the largest qualified roofing companies in the nation. Olsson boasts more than 200 completed roofing projects annually. Specializing in commercial and industrial roofing projects, the company has capabilities in the installation of major roofing systems, including built-up, modified, standing seam sheet metal and all single-ply systems for new construction and re-roofing. The company employs service personnel who respond to more than 3,000 calls per year. Olsson Roofing Company maintains its main office in Aurora, Ill., providing service throughout the northwest Illinois area.