We Provide 24 hour, 7 days a week, Commercial Refrigeration and HVAC Services. Since 1982, Greensboro Refrigeration Services, Inc. (GRS) has been a leading commercial refrigeration sales, service and maintenance company serving businesses and organizations of central North Carolina. At GRS, client satisfaction always comes first: Our goal is to empower our diverse clients—from restaurants to school systems to retailers—to succeed in today's highly competitive marketplace. Known for our exceptional service and top quality products and parts, GRS offers unparalleled expertise in chillers, HVAC (commercial heating and commercial air conditioning repair) and electrical systems. With offices in Greensboro, Winston-Salem, and Charlotte NC, GRS specializes in distributing and servicing most leading brands of ice machines, reach-in coolers, freezers, commercial walk-in coolers, floral coolers and cooking equipment.