Bristol's garages are mostly a different generation than the older stock closer into Kenosha - the area filled in later, with a lot of two-car steel doors built around 1981 going up on torsion or extension hardware that was standard for that decade. On a torsion setup, we unwind the spring, pull the old cable off the drum, and wind in a replacement sized to the door's exact drop and drum diameter - guess the length and the door runs crooked or binds in the track. On extension systems, the cable runs from the bottom bracket up over a pulley to the spring itself, and if one side goes, the other usually isn't far behind, so we check both. Either way the door comes off the opener first; running an opener against a dead cable is how you bend a track or crack a bottom panel, and that turns a cable call into a bigger one. We carry the common drum and cable sizes on the truck for this door era, so most jobs here finish in one visit without a special order. See <a href='/garage-doors-bristol/'>our Bristol door page</a> for the broader lineup of work we do on these doors.