EPIC Building Systems, Inc. We have been the Midwest's leading supplier of steel homes since 1995. 711 Lois Drive Sun Prairie, WI 53590 Phone: (608) 837-9069 • Fax: (608) 825-4668   ERA Kraus Real Estate and Kraus Homes in Sun Prairie has been helping families in Madison, Sun Prairie and the Dane County area buy, sell, and build homes since 1976. In all those years, our focus has remained on the most important person in any real estate transaction—you.