Brentwood is five miles from where we run our trucks out of Antioch, and that distance matters less than what's behind the doors we open when we get there. The median home in Brentwood went up around 2003, which puts most of the town two or three decades newer than a lot of what we service elsewhere in the county. That changes the job. You're not dealing with a 1970s torsion spring that's finally given out after forty years of cycles. You're dealing with a 2000s-era steel door on a factory opener with a photo-eye safety sensor, a circuit board, and a remote running rolling code. The failures skew electronic before they skew mechanical. A door that won't close isn't always a spring - more often in a house this age it's a sensor knocked out of alignment, a logic board that's aged out, or a wall switch wired wrong from the original install. With about 20,918 households in town, most in homes from roughly the same building window, we see the same handful of faults repeat house after house.