You wouldn't purchase a new car and assume you’d never have to fill the tires, change the oil or look into odd noises. Your home comfort system is very much like a car engine. It’s a machine with a motor, electrical pieces and even fuel. So, it’s essential to have a qualified professional complete regular maintenance on your home comfort system in Philadelphia. If not properly serviced, even the best heating and air conditioning units may experience troubles and loses energy efficiency over time.