A straightforward fix - a new drive gear, a reset limit switch, a replaced wall control - usually runs under an hour once a tech is actually looking at the unit. What takes longer is an intermittent fault, the kind that only shows up on a cold morning and then behaves perfectly by afternoon. Those need the opener run through several cycles, sometimes with the garage left to sit at outside temperature first, before the problem will repeat itself for diagnosis. Since this job is covered from DeKalb rather than from a local branch, scheduling the visit for a cold stretch, rather than the first mild day, actually helps - it's the only way to catch a cold-weather fault in the act instead of chasing a symptom that's gone quiet.