The Sheet Metal Workers' International Association, represents 150,000 skilled craft persons throughout the United States, Canada, and Puerto Rico. Sheet Metal Workers perform architectural sheet metal work, fabrication, installation, and service of heating, ventilating and air conditioning systems, shipbuilding, rail work and more.
Located in Guelph, O’Brien Fabrications Ltd. is Wellington County's full sheet metal and fabrication shop. We fabricate ductwork for HVAC systems, metal roofing and siding and specialty metals. People trust us for quality welding of tanks, hoppers, railings and repairs.