The climate band for this area is mild with occasional freeze - not the brutal freeze-thaw cycle that chews through hardware in colder states, but enough cold mornings each winter to stiffen grease, shrink metal slightly, and make a marginal roller or cable finally quit. It's rarely one hard freeze that breaks something here. It's forty mild ones in a row on parts that were already tired.
With a median build year around 1978, a lot of East Port Orchard garages are running their second or third opener but their first set of springs and original track. Track doesn't wear out from age alone - it wears out from decades of a door riding slightly out of alignment because nobody's checked plumb since it was installed. Add in the salt air common to Kitsap Peninsula neighborhoods this close to the water, and exposed hardware on an unheated garage corrodes faster than the same part would forty miles inland.
We don't have a firm number for how many East Port Orchard garages are original 1970s doors versus later replacements, so we won't guess. What we can say is the age profile here means torsion springs and rollers are due, or overdue, on a large share of these homes.