John Duff Limited

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