Dayton's housing stock centers around 2003, which puts most doors here in the first generation of mass-market steel sectional doors with factory-installed torsion springs and safety-reversing openers. That's newer than a lot of what we see closer to Elk River, where doors go back to the 1960s. It doesn't mean the doors are trouble-free. Twenty-plus years of cold-weather cycling wears out the nylon idler pulleys, cracks the plastic end caps on rollers, and degrades the control board capacitors in the openers that shipped with these houses. Torsion springs rated for 10,000 cycles are hitting that number right about now if the door gets used twice a day. We also see photo-eye brackets knocked out of alignment and worn weatherseal at the bottom panel, which matters more here given the cold winters than it would somewhere with a milder climate.