1920 Founded by John Sharp (co-author of the Boiler Code for Ontario) with 6 employees and a few welding machines
1934 (The late) Wim S. Dunsmoor was hired as a plant worker, becoming General Manager in the early 50’s
1963 Son William A. Dunsmoor, P.Eng, joined the family business, full time after graduation
1980 Moved to current plant at 49 Passmore Ave with 75 employees
1995 Acquired Continental Penn Services greatly expanding CNC machining capabilities
2001 Acquired Canada Millwrights and 14 Passmore Ave. as Plant #2
2003 Receives A2 License to manufacture Pressure Vessels for peoples Republic of China
2004 Major expansion of Plant #2 to 36,000 sqft and consolidation of CNC machining operation at that location
2005 Acquired Aurora Filters, consolidating engineering, manufacturing, marketing and service for proprietary brand pharmaceutical filters
2007 The ALL-WELD team achieves ISO9001:2000 certification!
2013 Acquired Patterson Industries, consolidating engineering, manufacturing, marketing and service for proprietary brand of process equipment
2016 Added A & F industries products
Today Continuing the tradition of quality and service through diversification, pursuing new goals driven by our customer’s needs, with the 3rd generation, Scott Dunsmoor P.Eng., President and Jim Dunsmoor, General Manager