Extension and torsion springs may look similar, but they perform very differently. Extension springs stretch along the sides of the door. They pull instead of twist, which makes them louder, less balanced, and more likely to wear unevenly over time. When they fail, they can snap and cause serious damage. Torsion springs, on the other hand, sit above the door and rotate under tension. They distribute weight evenly, operate quietly, and last longer. They’re safer, smoother, and designed for consis