The most common emergency call from this part of town is a door that won't move at all - spring gone, and the door's dead weight against the track. Second most common is a door that comes down uneven, one side dropping faster than the other, which on this vintage of house usually means one cable has stretched or frayed more than its partner. Cold weather makes both worse; this region sits in a cold-severe climate band, and steel contracts enough overnight that a spring already under stress is more likely to go in January than July. If your door is groaning, jerking, or reversing itself partway up, that's the opener fighting hardware it wasn't built to lift - worth a call before it fails outright rather than after.