Cable repair isn't just cutting old cable and threading new. We release spring tension first - that's the part that hurts people who try this themselves - then pull the drum, check the bearing and shaft for wear, and run new cable to spec length so the door sits level on both sides. On a household income base around $77,841 for Douglas, most of what we see is people choosing a careful repair over a full door replacement, and for a cable problem alone, that's usually the right call. Where it isn't is when the drum, track, and spring are all worn together - at that point we'll say so instead of nickel-and-diming a door that's better off replaced.