The short answer
Prime Choice HVAC Repair Service repairs furnaces, air conditioners, and heat pumps throughout Santa Clara County, including Palo Alto, Cupertino, Los Gatos, Sunnyvale, and Morgan Hill. Bay Area Air District rules don't require you to replace working equipment, so a repair is often a reasonable first step.
Prime Choice HVAC Repair Service works from San Jose and serves homeowners across Santa Clara County, from Palo Alto and Mountain View down to Morgan Hill. We repair furnaces, air conditioners, and heat pumps. We also help you decide when a repair makes sense and when it may be time to plan for a replacement. Here is what to know about heating and cooling in the county and what to expect when you contact us.
Communities We Serve in Santa Clara County
Our service area in the county covers the West Valley, the north county, the hills, and the south county. Communities include:
- West Valley: Campbell, Los Gatos, Monte Sereno, Saratoga, and Cupertino
- North county: Santa Clara, Sunnyvale, Mountain View, Milpitas, Loyola, Los Altos, Los Altos Hills, Palo Alto, and Stanford
- Hills and foothills: East Foothills and Lexington Hills
- South county: Morgan Hill
How the Valley's Climate Affects Your System
The Santa Clara Valley has a Mediterranean climate, with dry summers and mild, damp winters. Inland and southern parts of the valley, such as Morgan Hill, run noticeably hotter in summer than areas near the Bay. Air conditioners and heat pumps in those hotter areas often run longer during heat spells. Systems closer to the Bay may carry a lighter cooling load.
Winters are mild, but damp evenings still keep furnaces and heat pumps working. A system that sat idle all summer can reveal problems on the first cold night. A check before the seasons change can catch small issues early.
Common HVAC Repairs We Handle
We diagnose the problem first and explain what we find before any work begins. Typical calls include:
- Air conditioners that run but don't cool, or that short-cycle on hot afternoons
- Furnaces that won't ignite, blow cold air, or shut off early
- Heat pumps stuck in one mode or icing up
- Thermostat, wiring, and control board problems
- Weak airflow, noisy blowers, and clogged filters or coils
- Refrigerant leaks and condensate drain backups
Repair or Replace? What the Air District Rules Mean
The Bay Area Air District's appliance rules do not require you to replace working equipment. They apply only when an existing furnace or water heater fails or is replaced. If your furnace can be repaired safely, repairing it remains an option.
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 after that date. Bay Area homeowners can still check BayREN and their local clean energy provider for heat pump and electrification incentives. Amounts and availability change by funding cycle, so we confirm the current offer before including it in a quote.