Randal Olson Exteriors, Inc. is based in Buffalo, MN. We have been providing the very best in exterior remodeling since 1985. Specializing in siding and windows but offer many other services as well. Operating as a family-owned and operated remodeling contractor, we understand the need to get the most “bang for your buck”. We use only top-quality products, employing highly qualified people, and work directly with you. This helps ensure the project stays on schedule and on budget. When you need home improvement services, no job is too large or too small for Olson Exteriors.