One of the simplest signs that your ductwork is not working properly is lofty energy bills. When the ductwork stops functioning efficiently, heating or cooling a room requires more energy than before. This is why the energy bills increase gradually. Another obvious sign that we often overlook is the fact that one of the rooms is taking more time to get heated or cooled. If you are in doubt regarding the performance of your home or office’s ductwork then contact professionals who can check it. The professionals know how to tackle ductwork problems best and they can easily fix all sorts of problems. Even if there is no problem with your HVAC system, get it checked by professionals annually. Regular maintenance can help you avoid many severe problems.