Booking a Visit
We run this job out of San Ramon, about 8 miles from Castro Valley. That distance doesn't change what we bring - the truck carries the same spring stock either way - but we're not a local depot, so we book the visit around a drive time instead of treating it as a walk-in call. When you reach out, tell us the door width and whether it's one spring or two; torsion systems on double doors are almost always run in pairs, and replacing only the broken one leaves you with a mismatched set that fails again within a year or two. If your opener is still trying to lift against a broken spring, stop running it before we get there - that's what strips gears and bends track, and it turns a spring job into a bigger one.
How Long You Are Without the Door
Most spring jobs on a Castro Valley house are a single visit. We size the spring to the door weight and width, set the torque, and check balance before we leave - a door that isn't balanced right will just blow another spring early. Where it runs longer is on the older end of the local stock: doors built close to that 1966 median sometimes carry torsion hardware or drum sizes that aren't common stock anymore, and matching those can mean a short parts wait rather than a same-visit fix. We won't know which case you're in until we're looking at the actual hardware, so we don't quote a universal timeline over the phone.
Stocked Parts
We carry common torsion and extension spring sizes on the truck, sized for the door weights typical of houses built across the 1960s and 70s - which covers a large share of what's in Castro Valley and the surrounding area. Where we run into a gap is on non-standard drum sizes or torsion bars from some original 1960s installations that never got updated; those aren't something we keep six of on a truck, and if your door has one, we'll say so rather than force a part that doesn't match the shaft. That's an honest limit of the job: we'd rather order the right part than install one that's close enough and fails in a year.
