Founded in 1973, JS Thomas Service, Inc. is a family-owned mechanical service company based in Alpharetta, Georgia, serving commercial and industrial clients throughout Atlanta and North Georgia. The firm is principal-operated and positions its longevity and hands-on management as core differentiators in the commercial HVAC market.
Service offerings span HVAC design, installation, maintenance, and repair. The company handles chillers, boilers, heat pumps, air handling units, cooling towers, gas-fired heaters, and energy recovery units. Additional specializations include turnkey equipment retrofits, building automation systems, HVAC controls, and Distech control contractor work. Technicians hold factory training credentials from Trane, Carrier, York, and Liebert, enabling the firm to service equipment from all four manufacturers.
Client sectors served include apartments and condominiums, banking facilities, data centers, government buildings, heavy industrial operations, hospitals, manufacturing plants, medical offices, office buildings, retail establishments, schools, surgery centers, and telecommunications companies. This breadth of facility type reflects the firm’s capacity to manage mechanical systems across varied building environments throughout the Atlanta metro.
JS Thomas maintains a staffing policy of sending only experienced specialists to client sites. Most technicians carry more than ten years of experience, and many have been with the company for twenty or more years. The firm does not use apprentice technicians for client work. Phone support is available around the clock with live personnel answering at all hours, no voicemail or phone trees. President Jim F. Thomas describes this approach as delivering an unmatched level of personal service. Appointments and inquiries can be directed to (770) 475-2600.