A straight maintenance visit - lubrication, hardware inspection, spring tension check, track alignment - runs about the same length of time whether the door is in Lake Montezuma or anywhere else in the service area. What changes the clock here is what we usually find. Original 1991 hardware that's never been serviced tends to need more adjustment on the first visit than a door that's had regular attention: track brackets that have worked loose over three decades, a spring that's drifted out of proper tension slowly enough that nobody noticed the opener working harder each year. None of that turns a maintenance call into a repair call by itself, but it does mean the first visit on an untouched door takes longer than the second one will. After that first pass, follow-up visits move faster because we're not starting from a hardware inspection that's three decades overdue.