Yes, AC repair can improve energy efficiency. When your air conditioning system is not functioning properly due to issues like dirty filters, low refrigerant levels, or faulty components, it has to work harder to cool your home, leading to higher energy consumption. Addressing these problems through timely repairs allows the system to run more smoothly and use less energy. Regular maintenance and repairs can also extend the lifespan of your AC unit, preventing energy loss and ensuring it operates at peak efficiency, ultimately lowering your energy bills.