On a house built around 1957, the first thing we check isn't the spring - it's whether the track and drum are original. A lot of Westchester garages still run the door on hardware sized for lighter, single-layer wood panels, and if a previous owner swapped in a heavier insulated steel door without upgrading the springs, that mismatch is what's actually breaking. We match spring wire gauge to the door that's on the opening now, not to what the house was built with. We also see winter cold - this area sits in a cold climate band with real freeze-thaw cycles - stiffen old grease in rollers and tracks until a cable jumps its drum. That's a five-minute fix if we catch it before the cable frays; it's a full cable replacement if we don't. Our limitation here: if the track is bent beyond a certain point, or the door panel itself is buckled from being forced on a stuck spring, we'll tell you straight that a repair is a temporary patch, not a fix, and we'll say so before we quote anything.