What Brentwood's climate does to your system
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 sets the scope of a ductless mini split visit before the truck even leaves the yard, our starting checklist already accounts for heat load, dust, and run time the way they actually hit in Brentwood and the Westside of Los Angeles.