As a custom fabricator of spiral duct 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” round. Our spiral 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 are available per your project needs. GWSM fabricates single and double wall rectangular ductwork in 5’ lengths. All of our ductwork is completely customizable, tailored to your needs. You choose your degree, radius and thickness.