A garage door that won't open rarely fixes itself, and waiting through another cold snap usually makes the problem worse and the repair more expensive. A spring that's stiff but holding today can snap outright during a hard freeze. A door that's merely hard to lift by hand in October can be fully stuck by December once ice works into the bottom seal. And if the opener is the issue, a stripped gear only grinds itself down further every time someone hits the remote and nothing happens. Diagnosing it now, before the real cold sets in, is cheaper than an emergency call when the driveway is ice and the garage is the only way to get the car out.