For Cumings calls we load torsion springs sized for a standard double door, standard-cycle nylon and steel rollers, and drive components for the common opener brands that came standard on houses built in that 2014 window, since that's what most of the calls out here turn out to need. We also carry cable, drums, and bottom brackets, since worn cable on an original setup is common by this point in the door's life.
What we don't stock on the truck is anything custom - a specialty panel design or an oversized door isn't something we carry blind, and if that's what's on your house we'll confirm before we drive out rather than showing up short.