Yes, it is an excellent idea to get your heating system service before winter arrives. During the summer there are parts of your system that may have failed without you knowing it. A rain cap may have blown off and you could have water leaking down your flue pipe, which can rust out your furnace. If you have an oil furnace, you definitely should have the fuel filter and oil nozzle replaced every year. If you have a heat pump, the defrost controls or sensors may have deteriorated, which will not send your condenser into defrost mode when needed! If you have a fossil fuel furnace (gas or oil) you should check the batteries in your Carbon Monoxide detector. If you don’t have one, you definitely should get one. Check with us about all your filter needs.