The answer to 'why is my ductwork high energy bills' is that poorly sealed or insulated ductwork can cause significant energy loss and drive up your utility costs. Leaks in the ductwork allow conditioned air to escape, forcing your HVAC system to work harder to maintain the desired temperature. Inadequate insulation also contributes to heat transfer, leading to further energy waste.
Common symptoms of ductwork issues include uneven heating/cooling, high humidity, and unexpectedly high energy bills. Solutions can range from simple DIY duct sealing to more extensive ductwork replacement or redesign by a professional HVAC technician.