Structural Steel Erection Sowles Company is an AISC Certified Advanced Steel Erector, www.AISC.org and signatory employers of the International Association of Bridge, Structural, Ornamental and Reinforcing Iron workers. Sowles Company erects high rises, sports stadiums, manufacturing plants, warehouses, hospitals, military projects, power plants, oil refineries, parking structures, shopping centers, ethanol plants, paper mills, mining plants, and other structures. Bridge Erection Services provided include erection of pre-stressed concrete girders, structural steel girders and trusses, bridge railing; and the installation of reinforcing steel and post-tensioning systems. Post-tensioning Sowles Company is a certified post tension cable installer, and a member of the post tension institute. Reinforcing Steel Sowles Company installs reinforcing bars, This work includes foundations for any and all structures, also parking garages, high-rises, bridges, etc. Pre-Cast Concrete Erection of architectural, structural, and tilt-up pre-cast concrete materials. For buildings, parking structures, warehouses, and prisons. Often these items are very heavy and require large cranes, or special rigging procedures that Sowles Co can provide. Metal Buildings Sowles Company sells as well as erects Chief Pre-Engineered Metal Buildings, www.chiefbuildings.com Metal Panels, Curtain Walls, and Metal Roofs. Valley Building Products of Montana, a division of Sowles Company is located in Billings, Montana, and welcomes the opportunity to handle your metal panel, curtain wall and metal roof needs. Northwest Tower Cranes Located in Eagan, Minnesota, provides Liebherr, Pecco/Piener, and Tower Cranes, and Alimak, man and material lifts We are a one-stop shop for planning, procurement, installation, and dismantlement of these wonderful construction tools.