Doors installed around 1998 in this area are old enough now that the factory lubrication on rollers and hinges is long gone, but the hardware itself is usually still sound steel, not the thinner stock used in older or cheaper builds. In a cold-moderate climate like this one, that combination - aging lubrication plus temperature swings - is what causes the classic late-fall complaint: a door that worked fine in September and groans or sticks once the nights drop below freezing. Weatherstripping on doors this age also tends to have hardened and cracked, letting cold air in along the bottom seal. None of this is dramatic failure, it's gradual, and that's exactly why it gets ignored until a spring finally gives out from the extra strain of a stiff, cold track.