Heating and Cooling Repair Services in Greenville SC, Spartanburg SC and surrounding area. Family owned and operated HVAC company serving upstate South Carolina. Licensed and insured. With decades of experience we can perform quality and affordable service on your air conditioner or furnace. Airtek Services is one of the few in the state of South Carolina that requires all of their Technicians to be NATE certified. NATE-certified technicians are skilled professionals who have proven their knowledge in the HVAC industry by passing specialized NATE certification tests. Simply said, a certified NATE technician is the Best in the Business.