We set the install date around when the door actually arrives, not around when you call. Panels, especially insulated or custom-width doors, aren't something we keep stacked in the truck - they get ordered to match your opening once we've confirmed measurements on site. We'll give you a real window once the order's placed rather than a guess up front. On the install day itself, plan for the old door to come out and the new one to go in, track and opener mounted, same visit, assuming the opening doesn't need framing work. If it does - and on some of the older homes in this area it does - we'll tell you that before the crew shows up, not after.