Cleaning water. Conserving energy. Maintaining equipment. NCH has been a global leader in industrial and commercial maintenance products and services since 1919. Why? Because our superior solutions maximise efficiency and keep facilities and equipment running in optimum condition at reduced cost. We are relied upon by companies in over 50 countries to solve maintenance problems with the most innovative and effective products and services. These range from advanced drain and HVAC maintenance to specialty lubrication, industrial and parts cleaning, and water treatment.