The service area's climate band is cold-moderate, which in practice means freeze-thaw cycling works on door hardware all winter - metal contracts, lubricant thickens, and a door that closed fine in October starts sticking or reversing by January. That's the symptom we hear about most from commercial callers here: a door that worked, then didn't, right around the first hard cold snap. It's rarely the opener itself; more often it's a spring that was already worn thin finally giving out under the added resistance of cold-stiffened rollers. If your bay door has been groaning or hesitating before it fully seats, that's worth a call before it fails mid-cycle with a truck half in the bay.