Environmental Systems Inc., has evolved as a leader in cutting edge technology, while keeping pace with the ever changing HVAC and energy management environments. We keep in mind, the basic goals of customer service and satisfaction. This formula has enabled our company to grow steadily since its founding in 1975. ESI has been a consistent force in the plan and spec market, as well as proving our capabilities in design/build-negotiated projects. ESI handles commercial projects, both large and small, with equal care and commitment to excellence.
The HVAC division of ESI, has designed, engineered and installed systems in over 600 Silicon Valley companies. In addition, schools, R&D, high tech, medical, and biotech clients throughout Northern and Central California have utilized our expertise. Beyond plan and spec projects; we are also a design build contractor. This enables us to fill the unique requirements of specialty projects. We also provide the best possible solutions for all your HVAC mechanical needs.