HVAC maintenance is something that most homeowners leave to professionals. The majority of maintenance jobs do need to be handled by professionals who are licensed contractors. This is particularly true when it comes to major repairs, installations, and anything to do with the electrical or gas components within the system. You can contact companies like Pell City Heating & Cooling Inc for more information on major HVAC repairs. But between your regular professional services, you should definitely try to do your best to take on a few of the simpler maintenance jobs.