Houses built in the early 2000s tend to use pretty standard torsion spring sizes - the hardware manufacturers were building to fairly consistent door weights and track configurations by then. That's good news for a repair: the sizes that fit a 2004 door are usually sizes we carry on the truck already, so a straightforward single-spring replacement doesn't turn into a wait.
Where it gets slower is on the older end of the broader service area, where houses built back toward 1976 through the early 90s sometimes carry hardware that's been discontinued or replaced with a non-standard substitute by a prior repair. That's not generally what we run into in Harvest, but it's worth saying plainly: if your door has had non-original parts put on it at some point, or if it's an older door that got moved here, we may need to confirm the size before we commit to a same-visit fix rather than assume it matches what's typical for the area. One honest limit - we don't keep every spring size ever made on the truck, just the common ones. Anything unusual still means a short wait on the part.