About Us

Our mission is to help our customers meet their buildings' operational and financial goals

Indoor Environmental Services (IES) is a Mechanical Contractor dedicated to the design and construction of HVAC systems, Industrial Refrigeration systems, HVAC and refrigeration service and maintenance, as well as comprehensive Facility Solutions for commercial, institutional, and industrial facilities. IES has been in business since 1988 and provides quality service in the Northern California area. Our team includes dedicated Project Managers, Estimators, Registered Professional Engineers, CEM (Certified Energy Managers), certified plumbers, pipefitters, sheet metal workers, and service technicians.

Our CUSTOMER FIRST business philosophy promotes the quality of service that continues to drive us to this day. This is a commitment that each employee understands and incorporates into their daily work ethic. As part of your project team, IES assures a continued integration of efforts that save time and money for the owner/developer and/or general contractor and ensures the highest possible quality available.

“Our Customer First business philosophy is a commitment that each employee understands and incorporates into their daily work ethic.”