First In Our Field

Energy Star Leader

Loyal Partners

Full Service

The Leading Edge in Energy-Efficient HVAC Systems

Serving Supermarkets for 20 Years and Counting

Supermarket Environment Services Co. (SESCO®) specializes in engineering and packaging HVAC equipment & systems, Certified Energy Management (CEM), and commissioning.

We are proud to have partnered with over 3,000 stores to create ideal indoor environments that are both comfortable and sustainable. The SESCO Design℠ was born from a belief that supermarkets deserve easy-to-manage HVAC solutions that reduce energy waste, all while minimizing costs. Our comprehensive approach supports clients through every step of designing, installing, and maintaining efficient systems, and we have helped more U.S. companies qualify for ENERGY STAR criteria than any other company.

When you work with us, you don’t just get a product - you get a solution. That includes continued care through commissioning, maintenance, and great customer service. Our experienced staff members are expert technicians and incredible communicators, and we take pride in helping store owners achieve their goals. Let us be your partner in going a bit “greener,” reducing your operating costs, and providing the optimal environment for supermarket customers & employees.

TRS-SESCO became part of CoolSys in 2021. CoolSys is the parent company of the nation’s largest team of HVAC, refrigeration, engineering, and energy solutions businesses across North America, and is dedicated to providing premier solutions and superior quality to its customers with best-in-class service, technology, and exceptional value. This ensures our customers have access to the most advanced technology and resources while still receiving friendly, local customer service. Visit the website,, to learn more about our parent company.

We're Hiring

Make A Living While Making A Difference

Interested in working with people who truly love what they do?

Introduce yourself and we’ll be in touch with opportunities to join the SESCO team.

Our Guiding Principles

Make A Positive Difference

for our clients, our community, and our environment.

Act With Integrity

by doing what’s right, even when no one is looking.

Be Courageous

and take accountability for our words, actions, and results.

Lead By Example

as we promote respect and unity by embracing diverse viewpoints and beliefs.

Simplify Operations for Every Client

by providing all-inclusive, innovative services for enduring partnerships.