A common question we get from homeowners has to do with unusual furnace noises that occur both at startup and once a heating cycle is completed. Although some of these noises are normal and nothing to worry about, some can be quite serious and require immediate attention.
Whether your furnace makes loud noises when turning off or makes a booming noise when it turns on, let’s go over the most common causes of these sounds. That way, you’ll know which ones are normal and which ones warrant a call for immediate repairs.
