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 Experts In Mechanical Contracting
Who are we?
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
Image by Markus Spiske
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:

Our Clients
Club Auto Sport.tif
Bank of America.tif
maxim integrated.tif
Philips Lumileds.tif
SCC Office of Education.tif
Community Bank of the Bay.tif
Cushman & Wakefield.tif
Guardant Health.tif
Hampton Inn.tif
Jones Lang LaSalle.tif
Pacific Scientific.tif
Genomic Health.tif
TE Connectivity.tif
Western Digital.tif
metal rods

ESI Santa Clara

     3353 De La Cruz Blvd

  Santa Clara, CA 95054

Phone: (408) 980-1711
Fax: (408) 980-0714

Our Offices
Two Offices to Serve You

ESI Sacramento

4219 S Market Ct Suite H

Sacramento, CA 95834

Phone: (916) 344-1711
Fax: (916) 344-3168

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