Customers often ask us this question and the simple answer is, yes, your furnace should be maintained annually. “An ounce of prevention is worth a pound of cure.” Technicians will not only clean, but also inspect the furnace for safe operation. They will test numerous furnace components and recommend replacing any that may fail in the near future. This is called preventative maintenance. Preventative maintenance will save you time and money in the long run. There are usually coupons or promotions that make this annual maintenance affordable and far less expensive that a service call on a cold snowy night.