Top Remodeling Contractor in Onalaska, WI, La Crosse WI, Holmen WI, West Salem, WI & Galesville, WI. Your home goes through many changes over time. It's important to keep your property updated not just for function, but to also maintain its market value. Borchert Exteriors of Onalaska, WI, serves the community as your local expert remodeling contractor