Ralph's Exteriors, Inc., is a full?service, residential and commercial exterior contractor proudly servicing Andover and the surrounding areas. We specialize in roofing, siding, window & door projects. Based in Andover, MN, Ralph's Exteriors has been in business since 1989 and has over 40 years of experience. Here at Ralph's Exteriors, We have the equipment, manpower, and the expertise to handle all your exterior needs.