A straight replacement on a single-car opening in Italy, done in one visit once the crew is on site, is a half-day of work - remove the old slab, check the track and jamb, set the new door, balance the springs, run the opener cycle. Where it stretches longer is on houses from that same 1976 wave where the header has shifted enough that the new door won't sit plumb on the old track alone; that adds a return trip if new track or reframing wasn't in the original quote. Because this is a Waxahachie-based crew traveling the 15 miles out to Italy, we schedule the job as a full appointment rather than a drop-in, so plan for a set install day rather than a same-morning call.