We keep torsion springs sized for standard single and double doors on the truck, along with the cable, rollers, and hinges that fail alongside them - those cover most of the doors installed on houses built between the 1960s and 1990s, which describes most of the housing stock in this service area. We also stock common opener parts: logic boards, drive gears, and safety sensor kits, since a lot of the calls we get are chain-drive units original to houses from that same build window finally giving out. What we don't carry on the truck is anything custom - odd-sized doors, discontinued panel styles, or opener models that stopped being made years ago. On those, we'll tell you honestly if a part has to be ordered and roughly how long that takes, rather than promise a same-day fix we can't back up. For the springs, cables, and standard opener parts, though, we generally have what a house built in the 1970s through 90s needs already loaded.