Duct fabricators produce and install sheet-metal ducts that distribute conditioned air through HVAC systems in residential, commercial, and industrial buildings. They interpret drawings, cut and bend sheet metal, assemble duct sections, and conduct onsite installation with correct alignment and sealing. With rising demand for energy-efficient ventilation and improved indoor air quality, duct fabricators increasingly work with insulated panels, pre-fabricated ducting, and digital layout tools. Their role requires precision, physical strength, and coordination with HVAC technicians and construction teams. Global construction growth and retrofitting of ventilation systems maintain strong demand for skilled duct specialists.