We run this job out of Johns Creek, about 10 miles from Sugar Hill, so the first thing to plan around is travel time on top of the install itself. A straight opener swap - same rail length, same mounting points, no structural surprises - usually runs under half a day once we're on site. Where it runs longer is when the existing bracket or header isn't built for the new unit's weight, which happens more than you'd think on homes from this era since builders varied the framing from one subdivision to the next. We don't guess at that over the phone. If your opener dies and the door is stuck down, that's a different conversation than a scheduled upgrade - tell us that up front so we can plan the visit around getting the door operable again, not just swapping parts.