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HVAC Repair in Santa Clara County, CA

The short answer

FrostPoint AC Repair fixes air conditioners, furnaces, and heat pumps throughout Santa Clara County, from Palo Alto to San Martin. We diagnose the problem, explain your repair and replacement options, and help you understand how local Air District rules may affect a future replacement.

FrostPoint AC Repair is based in San Jose and handles heating and cooling repairs across Santa Clara County, from Palo Alto and Stanford in the north down to Morgan Hill and San Martin in the south. Your air conditioner might be blowing warm air in July, or your furnace might not light on a damp January morning. Either way, we find the cause, explain what we found in plain terms, and lay out your options before any work starts.

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 and San Martin, run noticeably hotter in summer than communities closer to the Bay.

That difference shows up in the problems we see. Air conditioners in hotter areas run for longer stretches, which puts more wear on capacitors, contactors, and condenser fan motors. In milder areas, a system may sit unused for weeks and then struggle on the first hot day. Heating demand is moderate across the county, but cool, damp mornings are often when ignition and airflow problems first show up.

Common Repairs We Handle

Most service calls start with one of a few symptoms. We test the system, identify the failed part or underlying cause, and tell you what it will take to fix it.

  • AC running but not cooling, or blowing warm air
  • Outdoor unit humming but the fan not spinning
  • Furnace not igniting or shutting off too soon
  • Heat pump stuck in one mode or icing up
  • Weak airflow, uneven room temperatures, or frozen coils
  • Thermostat problems and short cycling
  • Water leaks near the indoor unit or furnace

Repair or Replace? What Local Rules Mean

Bay Area Air District appliance rules do not require you to replace working equipment. They apply only when an existing furnace or water heater fails or is replaced. So if your furnace can be repaired, you can keep using it.

When replacement does come up, timing matters. Under Rule 9-4, natural gas furnaces manufactured from 2029 must meet a zero-NOx emission standard. In practice, that points homeowners toward heat pumps for replacements after that date. For small water heaters, Rule 9-6 set a zero-NOx date of 2027, but the Air District Board is considering amendments in November 2026 that could delay it. Check the current rule before you plan 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 current heat pump and electrification incentives. Amounts and availability change with each funding cycle, so we confirm the current offer before we mention it in a quote.

Communities We Serve in Santa Clara County

Our service area covers Campbell, Los Gatos, Monte Sereno, East Foothills, Santa Clara, Saratoga, Lexington Hills, Cupertino, Milpitas, Sunnyvale, Loyola, Los Altos, Mountain View, Morgan Hill, Los Altos Hills, Palo Alto, San Martin, and Stanford. If you're not sure whether we reach your street, contact us and ask.

Communities we serve here

What to expect

How a visit goes

  1. Diagnosis before recommendations

    We test and inspect your system before suggesting a fix. That way you're paying to solve the real problem, not a guess.

  2. Straight answers on repair vs. replace

    If a repair makes sense, we'll say so. If your system is near the end of its life, we'll explain why and walk you through your options.

  3. Respect for your home

    We keep the work area tidy, protect the floors where we're working, and clean up before we leave.

FAQ

Common questions

Do you repair both air conditioners and furnaces?

Yes. We repair central air conditioners, gas furnaces, and heat pumps, along with the thermostats and airflow problems that affect them.

Do I have to replace my gas furnace because of the new Air District rules?

No. The rules do not require you to replace working equipment. They apply only when a furnace or water heater fails or is replaced.

What happens if my furnace needs replacing after 2029?

Gas furnaces manufactured from 2029 must meet a zero-NOx standard under Rule 9-4. In practice, that points most homeowners toward a heat pump at that point.

Can I still get the federal tax credit for a heat pump?

No. The 25C credit covered qualifying heat pumps placed in service before December 31, 2025, and is not available for newer installations. You can check BayREN and your local clean energy provider for current incentives.

Why does my AC seem to struggle more than my friend's near the Bay?

Inland and southern parts of the valley run noticeably hotter in summer, so systems there run longer and wear faster. Sizing, airflow, and maintenance also make a big difference.

Should I replace my water heater now because of the 2027 rule?

Not necessarily. The Air District Board is considering amendments in November 2026 that could delay the 2027 date, so check the current rule before you plan a replacement.

Need Help With Your Heating or AC?

Tell us what's going on with your system and where you're located, and we'll set up a time to take a look.

(213) 559-3633
Call (213) 559-3633 Request Service