Why heating maintenance looks different in Brentwood
The lower streets keep some ocean influence while the canyons above turn hot and still, so one city carries two different cooling loads and a single sizing assumption fits neither well. Wind events drive smoke and fine ash down those canyons in fire season, which puts duct tightness and filtration on the list alongside capacity. That is usually why a visit opens with heat exchanger inspection, filter replacement, and thermostat calibration, so the scope matches what the system actually needs, what kind of equipment is in place, and how the crew gets to it.
