The short answer
Prime Choice HVAC Repair Service repairs furnaces, air conditioners, and heat pumps across southern San Mateo County, including Menlo Park, Atherton, East Palo Alto, Portola Valley, La Honda, and North Fair Oaks. We diagnose the problem, explain your repair options in plain terms, and help you weigh repair against replacement under current Bay Area Air District rules.
Prime Choice HVAC Repair Service travels from our San Jose base, about 26 miles away, to repair heating and cooling systems in southern San Mateo County. We work in East Palo Alto, Menlo Park, Portola Valley, Atherton, La Honda, and North Fair Oaks, on furnaces, air conditioners, heat pumps, and the ductwork and thermostats that tie them together. Because we're coming from the South Bay, we ask a few questions up front so the technician arrives with the right parts and a clear idea of the problem.
Common Repairs We Handle
Most calls start with a system that won't start, runs without heating or cooling, or makes a new noise. We trace the cause before recommending a fix, so you're not paying for parts that don't solve the problem.
- Furnaces that won't ignite, short-cycle, or blow cold air
- Air conditioners that run but don't cool, or freeze up
- Heat pumps stuck in one mode or struggling on cold mornings
- Thermostat, wiring, and control board faults
- Blower motor, capacitor, and fan problems
- Airflow issues from clogged filters or leaky ducts
Homes Across the Area Have Different Needs
The communities we serve here aren't all alike. Flatland neighborhoods in East Palo Alto, North Fair Oaks, and Menlo Park sit closer to the Bay, while Portola Valley and La Honda are in the hills, where homes can be more spread out and mornings cooler. Larger homes in Atherton and Portola Valley often have more than one system or zone, which means more places for a problem to hide.
When you call, tell us your home's layout and what equipment you have if you know it. That helps us plan the visit and bring what's likely to be needed, especially for homes farther up into the hills.
Repair or Replace? What the Air District Rules Mean
San Mateo County falls under the Bay Area Air District, and its appliance rules come up often when we talk about older equipment. The rules don't require you to replace a furnace or water heater that's still working. They apply only when equipment fails or is replaced.
Under Rule 9-4, natural gas furnaces manufactured from 2029 on must meet a zero-NOx standard, which in practice points homeowners toward heat pumps for replacements after that date. For small water heaters, the zero-NOx date under Rule 9-6 was set for 2027, but the Board is considering amendments in November 2026 that could delay it, so check the current rule before planning a replacement.
If a repair makes sense, we'll say so. If your system is near the end of its life, we'll walk through what a replacement would involve.
Incentives and Tax Credits
The federal 25C tax credit for heat pumps applied only to systems placed in service before December 31, 2025, so it isn't available for new installations. Bay Area homeowners can still check BayREN and their local clean energy provider for heat pump and electrification incentives. Those programs change by funding cycle, so we confirm what's currently offered before including it in any quote.