AC repair does not cost as much as having your unit replaced. However, you may have to get your air conditioner replaced. You may be skeptical about getting A/C replacement because you do not want to pay a lot of money. However, your air conditioning service can help trim the cost of your monthly energy bills. New air conditioners can cool your home without using as much energy. The amount of money that you can save on your energy bill can vary. However, many people are able to save over $300 on their energy bill.