From individual duct accessories to wholesale sheet metal, Greater Wisconsin Sheet Metal has you covered
Our line of specialty ductwork is custom-designed for your specific application.
As a custom fabricator of spiral ductwork and accessories, GWSM can meet your specific job requirements. Aluminum galvanized, paint-grip, 4x4 mil polyvinyl, and stainless steel are available in our standard 10’ lengths. We have the capacity to run 3” up to 48” rounds. Our spiral sheet metal is joined with E-Z Flanges, Barrel Clamps, Seal Systems, Spiral Pipe Connectors, or Companion Angle Rings.
Aluminum, stainless steel, paint grip, galvanized, and polyvinyl-coated ductwork is available per your project needs. GWSM fabricates single and double-wall rectangular ductwork in 5’ lengths. All of our ductwork is completely customizable and tailored to your needs. You choose your degree, radius, and thickness.