Great Lakes Roofing provides roofing and insulation services including, roofing installation, wall inslulation, insulation systems, foam insulation, spray urethane, blown cellulose, roofing application, single ply roofing, roofers, roofing, for commercial and residential in northern michigan, sault st marie, sault saint marie, upper peninsula, grayling, gaylord, petoskey, harbor springs, charlevoix, pickford, vero beach, michigan, florida; Contractors; Roofing Services ...