About JS Thomas
JS Thomas, Inc. is family owned and principal operated since 1973.

Our Philosophy
Focused on our clients and providing unmatched personal service.

JS Thomas Service, Inc. – Atlanta Commercial & Industrial HVAC Contractor

JS Thomas Service, Inc. is a full line mechanical service company that provides top quality installation, service and repair of commercial and industrial HVAC systems. We offer commercial and industrial HVAC design, installation, maintenance and repair, turnkey equipment retrofits, HVAC controls, automation, and more. For over 35 years, we have been committed to unsurpassed customer service.

Property managers and operators of all types of commercial and industrial facilities throughout Atlanta and the North Georgia area depend on the commercial HVAC experts at JS Thomas to handle all their HVAC needs. They know that JS Thomas is the "A Team" when it comes to service, repair, and installation of chillers, boilers, heat pumps, air handling units, SWUDs, cooling towers, gas fired heaters, energy recovery units, energy management systems and all other commercial HVAC system components.

We specialize in commercial HVAC service and repairs for all types of commercial, industrial and institutional clients including:

• Office Buildings
Medical Offices
Surgery Centers
• Schools
• Manufacturing Facilities
• Heavy Industrial
• Institutional
• Government
• Data Centers
• Retail
• Apartments and Condominiums
• Banking
• Telecommunications

All of our HVAC Service Team Members are seasoned factory trained commercial HVAC technicians with training in Trane, Carrier, York and Liebert systems to name just a few. We employ only the best HVAC technicians with years of commercial HVAC systems experience and training and we will never send an apprentice technician to practice on your facility. Most of our HVAC technicians have more than ten years on the job and many have been with us for twenty years or more.

We take pride in providing fast and direct service to new and existing clients. We answer all calls in person – no voice mail, no waiting for a return call. We don't want to be the biggest commercial HVAC contractor, only the best. We do what we do better than the competition and when you contact our Atlanta Commercial & Industrial HVAC Contractors, our goal is for you to hang up the phone comfortable in the knowledge that we have the problem handled.

Services Overview


JS Thomas Mechanical, LLC


We believe our market advantage is an unmatched level of personal service. Live people answer our phones 24/7. Hang up and know that we are off and running to solve your HVAC issue – no phone trees, no voice mail, no doubts!
Jim F. Thomas – President
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