There are often signs that a furnace is getting ready to break down. Strange noises coming from your furnace are an obvious sign that something is wrong. If you hear a new knocking, squealing or popping sound when your heat comes on, you may have a problem that needs the attention of a qualified repair technician. For the best Furnace repair Palatine homeowners call Five Star Heating & Air Conditioning they trust with all of their heating and cooling system needs. Visit https://fivestarheating.com/furnace-repair/ to learn more.