Springs fail from cycle count and from cold, and Homer Glen gets both. A door built around 1988, used daily for over three decades, has gone through far more open-close cycles than its spring was rated for - that's simple fatigue, not bad luck. Layer the area's cold-moderate winters on top, and the metal gets brittle right when the spring is already near the end of its life, which is why so many of these calls land in the colder months.
Across the roughly 8,001 households in Homer Glen, the housing stock is consistent enough in age that this isn't a one-off pattern - it's what happens to original torsion springs on doors from that build era generally. We're not local to Homer Glen itself, but we know the age of this housing stock because it matches a large share of the service area we already work, and that's the detail that actually predicts which spring is on your door before we ever see it.