Vienna's service area runs from houses built as early as 1940 up through 2015, with a median around 1977. Fort Hunt sits ahead of that curve - most of its houses went up around 1963, in the run of Cold War-era construction that filled out this part of the county before the bigger 1970s subdivisions further out. That decade-plus gap matters when a spring snaps at 6am. A 1963 door was very likely upgraded once already, sometimes twice, which means the opener bracket, the track gauge, and the spring wind don't always match what came stock. We don't guess at what's behind the door before we see it, but we come expecting a mixed-generation setup, not a builder-grade 2005 install. Fort Hunt is about 16 miles from our shop in Vienna - the longest pull on our call list - so when you call, tell us what you hear or see happening. That lets us load the right spring cable and roller stock before the truck leaves, instead of after.