The fault we see most in Kingwood is a snapped extension spring on an original steel door that's never been swapped out. The median home here went up around 1970, a good decade or more before the rest of our Morgantown-area service territory, where the typical house dates closer to 1983. That gap matters. Doors from the early 1970s were more likely built with a pair of extension springs stretched along the horizontal tracks rather than a torsion spring over the header, and those springs fatigue and snap without warning after 15,000 or so open-and-close cycles.
Add in the winters here. This is a cold-climate service area, and steel contracts hard in single-digit nights. On a door already thirty-plus years old, that contraction is often what turns a stiff, slow-closing door into one with a fully separated spring cable or a cracked bottom panel. We're not guessing at general wear-and-tear talk - a house built in 1970 has had a lot more freeze-thaw cycles working on its original hardware than one built in the 1990s, and it shows in the calls we get.