One Hour Heating & Air Conditioning has provided residential HVAC services to the Upstate South Carolina community since 2003. Locally owned and operated in Greenville, our professional technicians are able to provide on-time, satisfaction-guaranteed service to homeowners across the entire Upstate area. Your time is our #1 priority. We have convenient two-hour appointment windows to better fit your schedule. And if your One Hour Heating & Air Conditioning service provider is even one minute late—the service is on us. Your complete satisfaction is 100% guaranteed. We do whatever it takes to make sure you are happy with our services. Our warranties and guarantees are industry leading because of our experienced technicians and the high quality parts we use. Our technicians are friendly, clean, polite, drug-free and experienced—and our techniques are state-of-the-art, guaranteed! We won’t keep you waiting – “Always on time… or you don’t pay a dime.” ®