Door age clues
A lot of Sierra Vista houses in the areas we work went up between 1971 and 1995, with the median landing around 1978, and the hardware on a door that age tells us a lot before we even leave the shop. The panel count, the spring type, whether the opener is original, whether the track is bent or just loose - all of that changes a number, and we'd rather give you a real one than a guess that moves once we're on site.