The temperature kept changing inside the house. We also started coughing, so we decided to have our HVAC system checked. We called Atlanta HVAC Repair Central and explained to them the issue that we had. They were more than happy to help. They came and did a check on our HVAC system, and determined that it needed cleaning. They did a thorough clean of the system and once they were done with the job, the temperature became stable. It has been a week ago since the service and even our coughs started to disappear. They did a great job and their price was reasonable too.