Universal Spiral Air (USA) is a manufacturer of single wall and double wall duct products in Spiral, Oval and Rectangular configurations.  We fabricate for positive and negative static pressure systems.  We are experienced with reading and interpreting mechanical system designs, specifications and addendums.  Universal Spiral Air can provide piece marked drawings used in the actual ductwork ordering and installation process.  We have years of experience manufacturing duct systems for the mechanical contracting industry.We are experienced with the materials used in our industry; galvanized steel, Galvaneal, SS 304 & 316, aluminized, 3003-H14 aluminum and PCD coated metal (4x1 & 4x4).  We have completed third party leakage testing and are approved with many major engineering firms.  We regularly "take off" mechanical HVAC ductwork designs and prepare bids for the mechanical contracting industry.