M.A. Stewart and Sons Ltd. was established in 1955 to meet the growing needs of the Canadian Pipe, Valve and Fittings Industry. M.A. Stewart and Sons distribute valves and fittings for every commercial and industrial application. We have products available in every size, material and configuration. These products range from dependable utility valves to high performance, precision process controls and actuators. We sell to wholesalers. more... See more text