Two counties, one standard
HVAC Service Areas — Alameda & Contra Costa County
From our Oakland home base, Oren's HVAC Services serves homes and businesses across the whole East Bay — licensed HVAC work with emergency service in every city below.
- 15+ Years Serving the East Bay
- 4.9★ · 143 Google Reviews
- CA C-20 License #1048662
- 24/7 Emergency Service
- Upfront, Honest Pricing
Alameda County
Oakland, Berkeley and Alameda out through Hayward and Fremont, plus the hot Tri-Valley — Dublin, Pleasanton and Livermore. Our home county.
14 cities served — view county hubContra Costa County
From Richmond and El Cerrito to Walnut Creek, Concord, Danville and San Ramon — full-coverage HVAC across the county.
8 cities served — view county hubOur coverage area
Alameda County cities
Contra Costa County cities
Services available in every city
AC Repair
Fast, reliable AC repair for every major brand — diagnosed right the first time, built for the hot inland East Bay.
Learn moreAC Installation
Right-sized system selection and licensed installation — including adding cooling to older East Bay homes that never had it.
Learn moreEmergency HVAC
Fast emergency response across the East Bay. A real answer at (800) 974-5349 when comfort systems fail.
Learn moreHeating Repair
Furnaces, heat pumps, and old wall heaters — diagnosed and repaired with safety-first gas work.
Learn moreFurnace Repair
Ignition, blower, and heat-exchanger repairs with combustion safety checked on every visit.
Learn moreHVAC Maintenance
Real multi-point tune-ups that prevent breakdowns, cut energy bills, and protect your warranty.
Learn moreIndoor Air Quality
Filtration, purification, and duct sealing that protect your home's air — especially during smoke season.
Learn moreCommercial HVAC
Rooftop units, restaurants, retail & offices — commercial service scheduled around your business hours.
Learn moreHeat Pumps
One efficient electric system for heating and cooling — ideal for East Bay homes, with honest rebate guidance.
Learn moreDuctwork & Duct Replacement
Testing, sealing, repair & full replacement — because leaky ducts waste the comfort you're paying for.
Learn moreNot sure what you need?
Describe what’s happening and we’ll tell you straight — no obligation.
(800) 974-5349Anywhere in the East Bay? You're covered.
Call (800) 974-5349 — if you're anywhere in Alameda County or Contra Costa County, we serve your address with fast, emergency-ready HVAC.
Call (800) 974-5349CA C-20 License #1048662 · Oakland-based · Upfront, honest pricing
Request service online
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