Having an efficient HVAC system helps you save on energy bills. But, if you have any of these issues, your system needs to be looked at by a professional.
Over time, the ducts can move out of place and can cause air leaks. Duct sealing will remove the leaks and keep more air in your home. But is it worth it?
While you're familiar with what your thermostat does, you may be alarmed when it starts to blink at you. Know why this is happening and what you should do.