DNR Construction Warehouse 16116 Laramie Ave, Oak Forest, IL60452 This is the warehouse for DNR Construction, where the firm stores its supplies and equipment. In business for over 13…More years, DNR is family owned and operated. It provides provided weatherization and construction services in Chicago and the surrounding areas. The firm specializes in the exterior remodeling of single family, condominium, and townhome complexes. In addition, it is the largest weatherization contractor in Illinois. While it specializes in large jobs, for individual homewoners, DNR does windows, doors, roofs, decks and more. Call 708-535-2245for an estimate or to set up an appointment.