We can't quote a number without seeing the door, but a few things move the price up or down here specifically. Most houses in Kachina Village went up around 1985, and a lot of them still have the opener that came with the house - a chain-drive, half-horsepower unit with none of the safety hardware that became mandatory in 1993. Replacing one of those isn't a straight swap. You're not just bolting on a new head unit; you're adding the photoelectric sensor pair, often running new low-voltage wire along the track, and sometimes reinforcing the header bracket because the original wood backing was sized for a lighter unit. Belt-drive kits cost more up front than chain-drive but run quieter, and we're seeing more owners here ask for them - median household income in Kachina Village runs $79,085, above the $70,925 median across our wider service area, and that shows up in which drive type people choose. We don't publish a flat number because the sensor retrofit work varies house to house.