You need to replace your ac in case of the following situations as they can prove to be fatal and even raise your energy bills: It’s between 10 and fifteen years old. Requires periodic maintenance. Electricity rates are increasing at an exceptionally high rate. Even with the AC system turned on, there is a lot of dampness. Strange sounds come from the heating system. Failure to appropriately cool the room or residence. Be it furnace service in Austin, TX, or heating repair in Austin, TX, we are here for you every step of the way.