
Experts In Mechanical Contracting
'KEEPING YOU COOL' SINCE 1975! That's over 45 years!
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.
Heading the company is President and CEO Chris Enfantino. Responsible for all operations of ESI, Chris integrates corporate management with construction management. Co-owner and CFO Gene Enfantino, compliments the relationship, overseeing all of the company's treasury function and corporate finances.
Together, they have assembled a team of experienced professionals, both in the office and in the field to provide a full spectrum of mechanical contracting services.



Our Services
We are a Mechanical Contractor but also have our Contractor License so we can act as a General Contractor on any of your projects. Refer to our Services below:
Our Clients
Here are a few of our many clients we have worked with or are working with currently:






















ESI Santa Clara
3353 De La Cruz Blvd
Santa Clara, CA 95054
Phone: (408) 980-1711
Fax: (408) 980-0714
Two Offices to Serve You
ESI Sacramento
4219 S Market Ct Suite H
Sacramento, CA 95834
Phone: (916) 344-1711
Fax: (916) 344-3168