Repair vs. Replacement: What to Do When You Have a Broken Spring

Before you decide on a course of action, you must understand how these components work. Garage door springs do not operate like a leaky faucet that you can patch up with a bit of sealant. They function through mechanical tension. When a spring reaches the end of its lifecycle, the metal fatigues until it can no longer support the weight of the door. Because these parts are under such high levels of torque, the “repair” process for a spring is almost always a full replacement.

Why “Repairing” a Spring is a Myth

Many people ask if they can weld a spring back together or tighten a snapped coil. The short answer is no. Once the steel in a spring fails, its structural integrity vanishes. Attempting to bridge a gap in a coiled spring is incredibly dangerous and ineffective. When professionals talk about “repairing” a spring problem, they are almost universally referring to removing the old, dangerous part and installing a brand-new one that matches the weight and size of your specific door.

The “Pair” Rule: Replacing Both Springs

If your garage door uses a double-torsion spring system and only one side breaks, you might feel tempted to replace only the damaged one. However, industry experts strongly recommend replacing both. Since both springs have likely gone through the same number of open-and-close cycles, the second spring will usually fail within weeks of the first. Replacing them simultaneously ensures even tension across the door and saves you a second service fee later in the month.