When Should You Worry About Your Garage Door's Extension Springs?
You've probably heard that your garage door's springs are particularly dangerous, but you might not realize that garages use two distinct styles of springs. Extension springs are a cheaper option commonly found on older garage doors, and these springs are under substantial amounts of tension with the door in the closed position.
On the other hand, torsion springs are a safer and more modern option. If you have a large shaft spring running horizontally across the top of your garage door, you have a torsion spring.