A door built in 1997 is a different animal from one built in 1975. By the mid-90s, manufacturers had mostly moved to galvanized torsion springs mounted on a single shaft above the opening, which is what you'll find on most Carl Junction garages. These springs last longer than the old stretched extension springs, but when they do go, the whole door is dead weight until they're replaced correctly. Openers from that era are chain or belt drive with a basic logic board - no WiFi, no battery backup - and after two and a half decades those boards are a more common point of failure than the motor itself. With 2,913 households in Carl Junction, we're not dealing with the mixed-era housing stock you'd find closer to downtown Joplin, where doors can be anywhere from 1970s original to last year's install. Here the baseline is more consistent, which makes diagnosing a stuck or noisy door a little more predictable.