A straight swap on a standard 16x7 or 9x7 opening, same size, same spot, is usually a single visit. We size the new door to the opening that's already there rather than pouring a new slab or reframing, since Fussels Corner's building stock from the early '90s was built to fairly consistent garage dimensions. If the opener is being replaced at the same time, that adds to the visit but it's still one trip, one crew, one day. We don't carry every hardware spec on the truck for older track configurations, so if your current setup has non-standard rail length we may need to confirm parts before the install date is locked in.