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AC and Heating Repair in Sunnyvale, CA

The short answer

Yes, ChillPro AC Repair serves all of Sunnyvale, including ZIP codes 94085, 94086, 94087 and 94089. We repair, maintain and install air conditioners, furnaces, heat pumps and ductless mini-splits, and we also offer duct cleaning and indoor air quality work.

ChillPro AC Repair provides air conditioning, heating, heat pump and indoor air quality service for homeowners in Sunnyvale. We're based in San Jose, about 7 miles southeast, and we work throughout the city's 94085, 94086, 94087 and 94089 ZIP codes. Whether your AC quit during a warm afternoon or your furnace won't start on a damp winter morning, we diagnose the problem, explain your options in plain terms, and handle the repair or replacement you choose.

HVAC Services for Sunnyvale Homes

Most Sunnyvale homes use a central furnace, an air conditioner, or a heat pump that handles both. Many homes have only a furnace, and adding cooling is a common project. We work on all of these systems, from a single failed part to a full replacement.

When we arrive, we start by finding out what's actually wrong. You'll hear what we found and what fixing it involves. If replacement makes more sense than repair, we'll explain why and leave the decision to you.

  • AC repair and AC installation
  • Heating repair, furnace repair and furnace installation
  • Heat pump installation
  • Ductless mini-split installation for additions, converted garages and rooms the ducts don't reach well
  • HVAC maintenance for heating and cooling systems
  • Duct cleaning and indoor air quality improvements

How Sunnyvale's Climate Affects Your System

Sunnyvale sits in the Santa Clara Valley, which has a Mediterranean climate: dry summers and mild, damp winters. Because the city is in the northern part of the valley, closer to the Bay, summers here usually run a bit milder than in inland and southern parts of the valley. Warm stretches still come, though, and an air conditioner that sits idle for months can show problems the first time it runs hard.

Winters are mild, but cool nights and damp mornings mean the heat runs regularly for several months. A furnace or heat pump that hasn't been checked since last season may struggle with weak airflow or ignition problems. Dry summers also bring dust, and pollen collects in filters and ducts over time.

For these reasons, we suggest checking the cooling side in spring and the heating side in fall. A maintenance visit catches worn parts, dirty coils and clogged filters before they turn into a no-cooling or no-heat call.

Furnace Rules, Heat Pumps and Incentives

Sunnyvale homeowners have been hearing about the Bay Area Air District's appliance rules. Here is what they mean in practice. The rules don't require you to replace working equipment. They only apply when an existing furnace or water heater fails or is replaced.

Under the Air District's furnace rule, natural gas furnaces manufactured starting in 2029 must meet a zero-NOx emission standard. In practice, that points homeowners toward heat pumps when they replace a furnace after that date. If your furnace is getting older, it's worth planning ahead now rather than deciding during a breakdown.

Water heaters are on a separate track. The zero-NOx date for small water heaters was set for 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.

On incentives, the federal Energy Efficient Home Improvement Credit no longer applies. It covered qualifying heat pumps placed in service before December 31, 2025, and it isn't 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 we include it in a quote.

Nearby Areas We Also Serve

Along with Sunnyvale, we serve neighboring communities across Santa Clara County, including Mountain View, Santa Clara, Los Altos, Cupertino and Los Altos Hills. If you own property in more than one of these cities, the same team can handle service at each location.

ZIP codes we serve

  • 94085
  • 94086
  • 94087
  • 94089

Services in Sunnyvale

Nearby areas

What to expect

How a visit goes

  1. Diagnose first

    We look for the cause of the problem, not just the symptom. You'll know what failed and why before we recommend any repair or replacement.

  2. Clear options

    When there's more than one reasonable path, such as repairing an older furnace or switching to a heat pump, we lay out the tradeoffs so you can decide what fits your home and plans.

  3. Straight answers on rules and incentives

    Bay Area appliance rules and rebate programs change. We tell you what currently applies and confirm incentive details before including them in a quote.

FAQ

Common questions

Which Sunnyvale ZIP codes do you serve?

We serve all of Sunnyvale, including 94085, 94086, 94087 and 94089.

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

No. The Bay Area Air District rules don't require replacing working equipment. They apply only when an existing furnace or water heater fails or is replaced.

Is a heat pump a good fit for a Sunnyvale home?

Often, yes. Sunnyvale's mild winters and warm summers suit heat pumps, which heat and cool with one system. Furnaces manufactured from 2029 must meet a zero-NOx standard, so many homeowners are considering heat pumps when they replace a furnace.

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

No. The federal 25C credit covered qualifying heat pumps placed in service before December 31, 2025, and it isn't available for new installations. Check BayREN and your local clean energy provider for current incentives.

How often should I have my system maintained?

We recommend a cooling check in spring and a heating check in fall. That timing fits the valley's dry summers and damp winters and catches problems before peak use.

Do you install ductless mini-splits in Sunnyvale?

Yes. Ductless mini-splits work well for additions, converted garages and rooms your existing ductwork doesn't reach well.

Need heating or cooling help?

Tell us what's going on with your system, and we'll schedule a visit to find the cause. We'll explain what we find and walk you through your options before any work begins.

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