A straight swap on an existing door takes most of a morning once we're on site, 8 miles out from Kenosha. The homes here were mostly built around 1981, and that era's garages are almost always a single 16-foot double door or a pair of 8-footers, hung on tracks sized for the chain-drive opener that came with the house. If that bracket and rail are still square, we're bolting a new unit to the same mounting points. If the door itself has sagged or the header's shifted over forty-plus years, we budget extra time to true up the track before the opener goes in, because an opener fighting a bent rail will fail again in a year regardless of how new it is. We don't quote a same-day window for Mount Pleasant specifically - we're driving from Kenosha, not sitting in a local yard, so the job gets scheduled, not walked into.