Most houses in Kettering went up around 1989, later than a lot of the surrounding Bowie service area. That means the original door on most of these garages is a single-layer steel panel door, no insulation, hung on extension springs instead of torsion hardware - standard builder-grade equipment for that era. It did the job for thirty-plus years, but steel that thin doesn't hold up well against a cold-climate winter. You get condensation on the inside face, rust starting at the bottom panel where snowmelt sits, and hinges that stiffen up and eventually crack in low temperatures. None of that is a mystery failure - it's just what happens to a 1989-grade door that was never built with insulation for a severe cold band like this one. By the time the door is visibly sagging or won't seal at the bottom, the springs and track are usually already compromised too, which is why a repair call out here often turns into a replacement conversation instead.