About
Environmental Systems Inc. has been delivering mechanical contracting excellence in Santa Clara and the Bay Area since 1975, accumulating over 45 years of commercial HVAC expertise. This established mechanical contractor operates from dual offices in Santa Clara and Sacramento, providing comprehensive coverage across Northern California's commercial and industrial markets. ESI specializes in both plan-and-spec projects and design-build solutions, handling everything from rooftop units and air handling systems to chilled water plants and boiler installations across office buildings, industrial facilities, healthcare centers, and educational institutions. The company maintains California contractor license CCL No. 422478, enabling them to serve as either mechanical contractor or general contractor depending on project needs. Under the leadership of President Chris Enfantino and CFO Gene Enfantino, ESI has built a reputation for integrating cutting-edge HVAC technology with traditional customer service values. Their multi-disciplinary approach covers complete HVAC systems, piping and plumbing, environmental chambers, and building automation controls. For facility managers overseeing complex commercial properties, ESI's four-decade track record in the competitive Bay Area market demonstrates their capability to handle both routine maintenance challenges and large-scale mechanical system installations. Their dual-office structure ensures responsive service coverage throughout the region while maintaining the technical expertise necessary for today's energy-efficient commercial HVAC demands.
