Based in the Pittsburgh area, The Ductworks Inc. fabricates custom rectangular galvanized-steel ductwork and fittings for light commercial and residential HVAC systems. The shop works with HVAC contractors from blueprint takeoffs through job-site delivery, hand-crafting duct to reduce noise and friction while improving airflow and limiting leaks. Its experienced team also supports residential changeouts with custom plenums and boots.
BZ Duct ShopBZ Duct Shop fabricates custom HVAC rectangular ductwork and fittings. The submitted source context states that it works with aluminum, stainless steel, black iron grease duct, and galvanized sheet metal.BROOKLYN, NY
Metro Duct Systems, IncFor more than five decades, Metro Duct Systems, Inc. has designed and fabricated custom ductwork for commercial and residential clients across the tri-state area and New Jersey. Based in Long Island City, the company also handles ductwork installation and as-built drawings, bringing its sheet-metal expertise to projects that require tailored fabrication.ASTORIA, NY
Hranec CorpFounded by Steve Hranec in 1995, Uniontown-based Hranec Corp. combines mechanical construction services with large-scale HVAC manufacturing, including custom ductwork and roof products. Its manufacturing operation has expanded from a 2008 fabrication facility to a 40,000-square-foot roof-product shop and a 200,000-square-foot building completed in 2026. Hranec also stands apart with specialized offerings such as outdoor Tuff Duct and its patented Spiral Graphix, which turns exposed spiral ductwork into customized visual displays.UNIONTOWN, PA