The most common mistake on a cable repair is replacing the cable without checking why it failed in the first place. On newer construction like most of Cold Springs, a cable rarely frays from age alone at the 20-year mark; it's more often a bent drum, a track that's slightly out of alignment, or a spring that's no longer matched to the door's weight pushing extra load onto one side. Swap the cable and ignore the cause, and the new one frays again in months.
Severe cold cycling, which this part of Nevada sees as part of its climate classification, also stiffens lubricant and hardens cable strands faster than in milder climates, which shows up as fraying near the drum before anywhere else. Checking the drum and alignment at the same time as the cable swap is standard, not an upsell.