From hillside homes to Eichlers with no duct space, Onzone handles AC installation across Castro Valley, matched to the house.
We install across Castro Valley, including Castro Village, the Lake Chabot area, Palomares Hills, and Five Canyons. Manual J load calculation on every job, permits pulled, and a written line-item proposal before anything is ordered.
Castro Valley mixes mid-century hillside homes with Eichlers that have no duct space at all. Eichlers usually mean a ductless install, while the tract homes take standard ducted systems, and we do both.
Castro Valley is moderated by the hills and bay, so many homes need less cooling than an inland house, but canyon and hillside spots still get hot. We size by Manual J to the specific location.
You get a line-item proposal covering equipment, labor, permit, and disposal before anything is ordered. We pull the permit and handle the city inspection, so the price you approve is the price you pay.
Yes, permit and inspection are included and handled by us.
Ductless mini splits, which are built for exactly that. They cool room by room without duct space. See ductless mini-split.
With a Manual J calc that accounts for elevation, exposure, and glass. Hillside and canyon spots can run warmer, and the calc reflects that.
See AC repair in Castro Valley first. We only quote replacement when the repair no longer pays off.
Also in Castro Valley: AC Repair, Heat Pump Installation, Furnace Installation.
