JW Portable Welding ﹠ Repair, welder in London Ontario, provides metal fabrication, mobile welding, and portable welding services. to industrial, commercial, and residential clients. As a technologically advanced company, we specialize in welding on site, large aluminum casts, large steel casts and on-site fabrication of semi mechanical structures that must be aligned to the existing machinery. Within the on-site fabrication service, we repair aluminum molds and their supporting steel structures. Although, we are in London our mobile welding service of in area of aluminum handrail welding, heavy equipment welding and OWSJ reinforcement provides competitive advantage within the radius in Kitchener, Oakville, and Mississauga. Moreover, with the addition of advanced portable welding we can provide advanced GMAW and GTAW welding technologies for repair of dies and advanced repairs of cracks in more complex alloys. The company operates with 3 mobile welding units and 1 portable unit. We have 14 welding machines customized to specific welding tasks.