Alameda County coverage
HVAC Services Across Alameda County
AC repair, installation, heating, and emergency HVAC for every Alameda County community — from an Oakland-based, licensed HVAC contractor serving the whole East Bay.
- 15+ Years Serving the East Bay
- 4.9★ · 143 Google Reviews
- CA C-20 License #1048662
- 24/7 Emergency Service
- Upfront, Honest Pricing
HVAC service built for Alameda County
Alameda County is our home — Oren's HVAC Services is based in Oakland, and our technicians work this county every single day. We know its microclimates the way only a local contractor can: the mild, bay-cooled weather along the Oakland, Berkeley, and Alameda shoreline, and the genuinely hot inland summers out in the Tri-Valley — Dublin, Pleasanton, and Livermore routinely hitting the high 90s and triple digits.
We know the housing too. The county runs from older bayside homes that were built breeze-cooled and never had central air, to large newer two-story tracts in the Tri-Valley with serious cooling loads. We handle first-time AC installations in classic Oakland and Berkeley homes, right-sized replacements for the inland heat, and emergency repairs everywhere in between — and in the hills, we help with air quality during wildfire-smoke season.
Whatever city you're in, the standard is the same: a licensed HVAC contractor, an honest diagnosis, careful work, and upfront pricing before we start.
Alameda County cities we serve
Every city below links to its own local service page. Don’t see yours? If it’s in Alameda County, we cover it — call (800) 974-5349.
HVAC Emergency?
No heat. No cooling. No waiting until morning.
Call for fast emergency HVAC service across all of Alameda County and Contra Costa County — we'll give you an honest ETA.
Our services across Alameda County
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) 974-5349Licensed & Accountable
A licensed contractor that stands behind the work
Oren's HVAC Services is a CA State Warm-Air HVAC License C-20 #1048662 serving the East Bay. We pull permits, follow code, and document the work — and we tell you the truth about what your system needs before we start.
- Oakland-based, locally owned
- Emergency HVAC service
- Licensed C-20 contractor
- Upfront, honest pricing
Alameda County — common questions
Do you really cover all of Alameda County?
Yes — from Oakland, Berkeley, and Alameda out through San Leandro, Hayward, Castro Valley, Fremont, Union City, and Newark, and across the Tri-Valley in Dublin, Pleasanton, and Livermore. We're based in Oakland and serve the county end to end.
How fast can you respond to an emergency in Alameda County?
We offer emergency HVAC service across the county. Response time depends on where you are and current call volume, but the Oakland and inner-East-Bay cities are typically our fastest zones — and we'll give you an honest ETA when you call.
Do you handle both old and new homes in the East Bay?
Yes. The county's housing spans a century — from adding cooling to older Oakland, Berkeley, and Alameda homes built before central air was common, to servicing modern multi-zone variable-speed systems in newer Tri-Valley construction.
Is there an extra charge for cities far from your office?
We serve the whole county as standard territory. Any trip considerations are explained transparently when you book — no surprises on arrival.
Need HVAC help in Alameda County?
Call (800) 974-5349 for service anywhere in Alameda County — fast, emergency-ready HVAC — or send the form and we'll call you back fast.
Call (800) 974-5349CA C-20 License #1048662 · Oakland-based · Upfront, honest pricing
Request service online
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