A HISTORY OF PRESERVING HISTORY. With over 50 years of experience in masonry restoration, we’ve learned that each project has unique restoration needs. These needs are taken into consideration, accounted for, and carefully planned for before starting. Each step in the restoration process is designed and implemented in great detail to ensure the safety of our employees and to deliver a quality project on time and within budget. Our professional staff is dedicated to providing value-added masonry corrective cleaning, repair, replacement, and more; all of which has made AMR the recognized leader for masonry restoration in the greater Twin Cities metro area since 1998.