Expert Garage Door Repair,
Service, & Installation in
Belmont, CA

The 1960s put up 3,259 of Belmont's 11,227 housing units, more than any other period on the table, and the run from 1950 to 1979 covers 8,169 — 72.8% of the whole count, against 719 units built since 2000. Whether the 1950s or the 1970s ran second, the table will not say — 2,505 units from 1950 to 1959 against 2,405 from 1970 to 1979 is 100 apart, with a margin of 525 on that difference. The median build year is 1966, which on an opening nobody has altered puts the counterbalance under load for close to sixty years. A door, an opener, a set of rollers and a bottom seal are four purchases, though, and a build year says nothing about whether they were made in the same decade or in four different ones.

So what matters on arrival is not the age of the house but which parts share a birthday. A door can be newer than the track it runs in, and the head unit above it is a separate purchase from both. It gets established on site, one part at a time: whether the rollers suit the track they are sitting in, whether the brackets came with this door or were adapted to fit it, whether the sensors down by the floor are the pair that came with the machine. Where one round of work meets the next is where we look first, because a join between two jobs is the part of the assembly nobody ever set as a whole.