There's no flat number we can give you over the phone, and we're not going to pretend otherwise. Cable repair on a Westchester door usually comes down to whether one cable snapped or both, whether the drums are original 1950s stamped steel or a later swap, and whether the spring that was under tension when the cable let go needs replacing too. A single frayed cable caught early is a smaller job than a snapped cable that let the door drop and bend a track. Because most houses on this side of town were built with the original torsion hardware still hanging in the garage, we often find the drum itself is worn oval where the cable rode for sixty-plus years, and that changes the job from swap-the-cable to swap-the-drum-and-cable. We'll tell you which one it is before we start, not after.