A straightforward fix - a burned motor capacitor, a stripped drive gear, a misaligned sensor - is usually an hour or so once we're on site, parts in hand. A full opener replacement, motor mount and rail included, runs longer, especially on garages where the original bracket doesn't match current mounting hardware because the house predates it.
Winter changes this math. Fond du Lac County sits in a cold, severe climate zone, and openers here work harder from November through March - cold grease stiffens gears, and a motor that's marginal in September can fail outright on a ten-below morning. We don't rush a diagnosis just to beat the weather, but we do prioritize opener calls in cold stretches because a door stuck open, or stuck shut over a car, is worse in January than June.