Minot's housing stock mostly went up between 1963 and 1998, with a median build year around 1973, and across the four main areas we work in that means a lot of doors and openers are original or on their second system at best. That's 50-plus years of seasonal cycling for some of these units - expansion and contraction through our winters wears out spring temper and track alignment faster than it would in a milder climate.
Our winters are classified as severe cold, which matters more than people think. Steel contracts in low temperatures, grease thickens, and a torsion spring that's fine in July can bind or snap in January. Houses from the 1973 era especially were built with doors and hardware sized for a different era of expectations - lighter insulation, simpler openers - and that gear just doesn't take 50 winters the way newer systems are designed to.