The short answer
Yes, PrimeAir HVAC Repair Service repairs furnaces, AC units, and heat pumps throughout Alameda County, from Union City and Newark to Oakland and the Tri-Valley. We offer 24/7 emergency service. Local air district rules don't force you to replace working equipment, so repair is often a reasonable choice.
PrimeAir HVAC Repair Service repairs furnaces, air conditioners, and heat pumps across Alameda County. We cover the area from Union City and Newark up through Hayward, Castro Valley, San Leandro, and Oakland, and east to Pleasanton, Dublin, and Sunol. Our base is about 10 miles away, so most calls are a short drive. We diagnose the problem, explain what we found in plain terms, and give you options before any work starts. If your heat or cooling quits at night or on a weekend, we offer 24/7 emergency service.
Communities We Serve in Alameda County
We cover a wide stretch of the county, including unincorporated neighborhoods that sometimes fall between service maps.
- Southern county: Union City, Newark, Sunol
- Central county: Hayward, Fairview, Cherryland, San Lorenzo, Ashland, Castro Valley
- Northern county: San Leandro, Alameda, Oakland
- Tri-Valley: Pleasanton, Dublin
Common HVAC Repairs We Handle
Homes here range from older houses with original gas furnaces to newer builds with heat pumps. Many also have central air that was added years after construction. These are the problems we see most often:
Weather varies across the county. Tri-Valley towns like Pleasanton and Dublin typically have hotter summer afternoons than bayside neighborhoods in Alameda or San Leandro, so cooling systems there tend to work harder. We base our recommendations on where your home actually is.
- Furnaces that won't ignite, that short-cycle, or that blow cold air
- Air conditioners that run but don't cool, freeze up, or trip breakers
- Heat pumps stuck in one mode or struggling to keep up
- Thermostat and wiring faults, failed capacitors, and worn blower motors
- Weak airflow from clogged filters, leaky ducts, or blocked returns
- Clogged drain lines and water leaks around indoor units
Repair or Replace: What Local Rules Mean for You
Bay Area Air District appliance rules do not require you to replace working equipment. They only apply when a furnace or water heater fails or is replaced. If your furnace can be repaired safely and sensibly, repairing it is a legitimate choice.
Looking ahead, natural gas furnaces manufactured from 2029 must meet a zero-NOx emission standard. In practice, that points homeowners toward heat pumps when they replace a furnace after that date. The zero-NOx date for small water heaters was set for 2027. However, the Air District Board is considering amendments in November 2026 that could delay it, so check the current rule before planning a water heater replacement.
Incentives and Tax Credits
The federal Energy Efficient Home Improvement Credit (25C) covered qualifying heat pumps placed in service before December 31, 2025. It is not available for new installations. Bay Area homeowners can still check BayREN and their local clean energy provider for current heat pump and electrification incentives. Amounts and availability change with each funding cycle, so we confirm the current offer before including it in any quote.
What to Expect From a Service Visit
Our technician inspects your system, tests the parts tied to your symptoms, and walks you through the cause. You get a clear explanation of the repair and, when it makes sense, the tradeoffs of replacing the system instead. No work goes ahead without your approval.

