Air Treatment is an HVAC&R Manufacturer's Representative Firm that has been serving the industry for over 35 years. Our System solutions are always mindful of the most efficient use of energy and water. Once a system solution has been implemented, start up services as well as any warranty execution is performed by our factory certified Service Technicians.We represent over 30 equipment manufactures in the HVACR industry, serving California, Hawaii and Mexico. Our diverse group of Sales Application Engineers are dedicated to providing HVACR equipment selection and system design support to Building Owners, Mechanical Consulting Engineers and Mechanical Contractors. We are involved in construction projects from initial design through construction and commissioning.