General Air. Based in Greenville, South Carolina, General Air is ready to help with all of your heating and air conditioning repair and replacement needs. As the premier choice for Upstate homeowners and businesses, General Air delivers more than year-round comfort and convenience — we deliver the ultimate in reliability, affordability and peace of mind. As a leading HVAC company and family-owned business operating since 1959, we acknowledge and value the importance of keeping your family or employees comfortable and healthy season after season, year after year. We specialize in caring for your entire HVAC system, whether it’s repair or replacement, one-time service or routine maintenance, or any one of our other recommended services. Our company’s success over the years can be attributed to our experience and expertise, along with the simple fact that our customers always come first. At General Air, we work with you to find and tailor solutions to meet your individual, specific needs. We’re not a manufacturer-sponsored dealer, which means we work with an array of HVAC vendors to deliver the very best solution — at the very best price. Directions