Why This Fails Locally
The cable fault we see out this way almost always starts with the drum, not the cable itself
A lot of the doors in this part of the service area are original to houses built around 1978 - the median build year for the stock here - and those doors came with steel drums and galvanized aerocable sized for lighter sectional panels than what's sold today. Fifty years of winding and unwinding wears a groove into that drum, and the cable starts riding outside its track instead of seating flush. Once that happens the strands fray fast, usually on the side closest to the floor where the cable takes the most flex.
On a door built in that era, the fix usually isn't "replace the cable and move on." If the drum has a groove worn into it
A new cable will wear the same way in under a year. We've opened up more than one 1970s door out here expecting a quick cable swap and found the drum needed replacing too, because the original part was never designed to run forty-plus years of cycles. That's the fault that's specific to houses of this age, and it's the first thing we check before quoting anything.
