Twin Lakes sits in a climate band we'd call cold and severe - real winter cold that stresses metal and lubricant differently than a mild-climate town does. Steel contracts in the cold, and on hardware that's been in place since 1976, that contraction finds every weak point: a spring already fatigued, a bolt already backed out, a cable already frayed at the drum.
That combination - original-era hardware plus decades of hard winters - is why doors here tend to fail at the joints first: hinges cracking at the screw holes, track brackets pulling loose from framing that's shrunk and swelled with each season. It's not that the parts were built wrong. It's that they've done 45-plus winters of work in a climate that doesn't go easy on steel.
We see this pattern across the areas we run from Thornton, but it shows up here specifically because so much of Twin Lakes' housing sits in that same build window. A door that's never been serviced since 1976 isn't rare here - it's closer to typical.