We carry torsion springs across the common sizes that show up in this area's 1938 to 1989 housing stock, plus the extension-spring hardware that some of the older single-car doors still run. Because the build era here skews toward the 1960s and 70s, we stock the drum and shaft sizes that match doors from that period, not just current manufacturer specs.
We also carry rollers, cables, and center bearing plates, since those tend to fail alongside an aging spring rather than on their own schedule. What we don't carry is a full stock of every discontinued panel style - if a door's original panel is cracked or bowed on top of the spring failure, panel replacement may need to be ordered, and that's a lead time issue, not something we can solve from the truck that day. On a straight spring swap, though, we're set up to finish the job in one visit.