John Duff Limited

John Duff Limited is a custom metal fabricating company in Sarnia-Lambton with over 50 years of experience providing production runs and one-off fabrications in mild steel, stainless steel, aluminum, copper, and brass. The shop offers shearing, forming, rolling, break forming, CNC Hi-Def plasma cutting for up to 2.5 inch material, and certified aluminum and stainless welding to CWB W47.1 and W47.2 standards. They manufacture made-to-order stairs, railings, ductwork, truck modifications, pipe clamps, and other components for industrial, construction, manufacturing, commercial, and agricultural clients.