It's six miles from our shop in Antioch to most streets in Pittsburg, and that drive shapes how a maintenance call here actually goes. We're not guessing what we'll find when we pull up. Pittsburg's housing stock centers on 1982, which puts most doors and openers in that long middle stretch of torsion spring hardware and chain-drive openers that were standard through the 80s and 90s - not the newer belt-drive units going into infill builds, and not the original one-piece doors you'd find on an older block. The truck carries torsion springs in the sizes that match that era, standard nylon and steel rollers, and lube rated for the sealed bearings those openers use. What we don't carry is a fix for every oddball setup - if a door's been modified with parts we don't recognize on sight, we tell you that before we start charging for guesswork, not after.