With around 421 households in Blowing Rock, we don't get the call volume of a bigger town, but the pattern of calls is consistent: doors that were fine all summer start binding, groaning, or refusing to close once the real cold sets in. This area sits in a severe cold climate band, and a garage built in 1984 wasn't insulated or weatherstripped the way current code expects. Steel expands and contracts more than people think, and original hardware that's tolerated 40 winters starts showing it in small ways first - a spring that sounds different when it lifts, a track bolt that's worked loose, an opener motor that hesitates before it decides to run. By the time the door won't open at all, that hardware has usually been telling you for weeks.