Winters in this area are classed as cold and severe, and that matters more to a 1990s torsion spring than it did when the door was new. Steel contracts in the cold, and a spring already near the end of its cycle life is more likely to snap on a sub-zero morning than a mild one - so if your door is making a sharp bang and then won't lift, that's usually the spring, not the opener.
The other common complaint from houses this age: the door reverses on its own partway down, or refuses to close at all. Nine times out of ten that's not a mechanical fault - it's the photo-eye sensors, original to the house, now misaligned from decades of settling or just caked with garage dust. We check those before we touch anything else because it's the cheapest fix and the most common cause.
Less common, but it shows up here too: nylon gears inside the opener housing wear down to a fine white dust after enough winters of the chain binding in the cold. If you find that dust under the unit, the gear kit needs replacing before the motor burns itself out trying to turn it.