Garage door extension springs run along your door's horizontal track which is attached to the garage door ceiling. If your extension spring breaks you may not notice it until you try to raise your door. The door will either not go all the way up, or possibly not move at all. If this happens to you, just give us a call at 386-243-2888. We'll be happy to help diagnose your problem over the phone and if we need to make a service call we'll be prompt and well within your budget.