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Office

About Us

Who We Are

Founded in 2002 by our company president, Basudev Mukherjee, Global Energy Services (GES) started as a one-man operation and has since grown into a leading provider of energy efficiency solutions across Southern California. Over the years, we have built strong relationships within the communities we serve, working closely with SoCalGas and Southern California Edison to bring no-cost energy-saving upgrades to qualifying homeowners.

What We Do

GES specializes in free energy-efficient installations, helping homeowners lower their energy bills while improving home comfort. Our services include:

  • Tankless Water Heaters

  • Attic Insulation

  • Tub Spout Kits

  • Low-Flow Showerheads

  • Energy Advisements – We assess energy usage and provide solutions to help customers reduce costs.

As part of our continued expansion, we now proudly serve San Diego in addition to Los Angeles, San Bernardino, and Ventura County.

Why Choose GES?

✔ Over 20 Years of Experience – Serving SoCal communities since 2002.
✔ Trusted Utility Partnerships – Approved by SoCalGas & Edison to provide no-cost upgrades.
✔ Proven Track Record – Thousands of satisfied homeowners benefiting from lower energy costs.
✔ Expanding Service Area – Now reaching more communities, including San Diego.

Our Mission

At GES, we believe that energy efficiency should be accessible to everyone. Our goal is to help California residents reduce energy consumption, lower utility costs, and improve home sustainability through high-quality, no-cost installations.

Recognitions

Appreciation of efforts in implementing a custom language efficiency program to work with cities and community organizations to reach out to residents and businesses on saving energy, money, and the environment.

Global Energy Services, Inc. Has Been Recognized By:

  • City of Monterey Park

  • City of San Gabriel

  • City of Rosemead

  • State Assemblyman Mike Eng, 49th District

  • State of California Senate

  • Southern California Gas Company

  • California Legislature Assembly

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Meet the GES Team

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Basudev Mukherjee 

President

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Michael B. Lo

Director of Programs

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Peter Lai

Regulatory Compliance

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Joscelyn Hazell

Operations Manager

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Amy Wen

Office Manager

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Kelly Chan

Data Analyst

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Christopher Rosas

Program Manager

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Sabrina Kurth

Marketing Manager

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Dion Hazell

Program Manager

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Lewis F. Ramirez

Program Manager

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Edgar Sanchez

Program Associate

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Craig Carothers

Program Associate

Operating Hours

Mon - Fri:  9:00am - 5:00pm ​​


Saturday: Closed​
Sunday: Closed

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Contact

Global Energy Services

​

23341 Golden Springs Dr,

Diamond Bar, CA 91765

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909-860-5300

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admin@gesusa.org

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