ControlChem Canada Limited is a progressive and growing company dedicated to delivering high quality water treatment solutions. We supply industrial clients with Water Treatment Programs for boilers, cooling process, wastewater and process systems. ControlChem is recognized for its high quality customer service and environmentally friendly products. We are ISO 9001 (Quality) and ISO 14001 (Environmental) certified. ControlChem is headquartered in Burlington, ON, with offices in other parts of Canada. Water Treatment. Water Solutions.