On an extension-spring door from the early-80s build era, a spring or cable repair is usually a same-visit job: we pull the old springs, match tension to your door's weight, run new safety cables through both sides, and cycle the door a dozen times to check balance before we leave. If the opener itself is original to a house from that period, the logic board and chain drive are past due anyway, and we'll tell you straight if patching it is throwing money at a part that's going to fail again in a year. Torsion conversions - swapping an old extension system to torsion - are a bigger job, done when the extension hardware has failed enough times that it's cheaper long-term than another spring swap. We travel the 5 miles out from Schaumburg for all of this; there's no branch office in Streamwood, just the truck coming out.