The four o'clock appointment is the one that gets rescheduled
Appointment times in this metro are a traffic decision, and booking them as though drive time were fixed is what drives your no-show rate.
An estimator leaving Marietta for a late-afternoon appointment in Decatur will be late, and a homeowner who waited an hour past the window is not in a buying mood when the measure finally starts.
Book by band and by direction. Cluster the far appointments in the middle of the day, keep the close ones for the ends, and stop treating a slot as interchangeable regardless of where it sits on the map.
Give a realistic arrival window and confirm it the morning of, then again when the estimator leaves the previous job. A text with a live arrival time prevents most of the cancellations that get blamed on tire kickers.
Track reschedules and no-shows by time of day and by destination. The pattern usually appears within a month, and it is almost never random.