Universal Spiral Air (USA) is a sheet metal manufacturer that specializes in commercial and industrial ductwork within the HVAC industry. We start projects by receiving blueprints over the Internet, estimate the cost, assist in designing the ductwork, fabricate the ductwork and then ship it to the job site for the customers installation. We ship within the United States and Canada. In addition we manufacture custom sheet metal products used by our customers in the manufacturing process of their products.