For more than 25 years, Timberwolff Construction, Inc., has been a premier retail tenant improvement general contractor licensed in 40 states throughout the United States.We proudly serve the retail industry including Nike, H&M and Express, among others. In 2014, we became a Gray Company thus creating new capabilities for customers as well as new opportunities for team members and subcotractors. This joining of forces with Gray Construction enables us to enhance the services we already provide to customers nationwide.