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2024

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Best AC Repair Services in Sunnyvale, CA

Our Recommended Top 15

We did the research for you!

  • Licensing
  • User Reviews
  • Mystery Shopping Calls

Our goal is to connect people with the best local professionals. We scored Sunnyvale AC Repair Services on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best.

49Reviewed

35Curated

15Top Picks

Learn about our selection process.

Providers

featured provider = Featured Provider

1463 Jackson St, Santa Clara, CA 95050

Expertise.com Rating

Review Sources

Google
5.0 (24)

Why choose this provider?

All HVAC and General Construction caters to property owners in Sunnyvale. The company repairs AC units and deals with issues concerning system components like thermostats and ducts. It has experience working on models from a range of brands, from American Standard to Lennox. It maintains a 24/7 emergency service for property owners facing HVAC problems. Its team takes on other projects involving the remodeling of various home spaces, including kitchens and bathrooms. The company's staff has over two decades of combined experience in the construction industry.

  • Furnaces
  • Installation

493 Vine Ave, Sunnyvale, CA 94086

Expertise.com Rating

Review Sources

Yelp
5.0 (18)
Google
5.0 (10)

Why choose this provider?

Grumpy's HVAC caters to commercial and residential property customers residing in and around Sunnyvale. The company installs different air conditioning types, including ductless mini-splits, outdoor units, and central cooling systems. Its crew of AC technicians repairs nonstop leaking, bad smell venting, unsteady cooling, and clanking noises. They handle indoor and outdoor components of HVAC system products from several manufacturers, such as Tempstar, Carrier, and Bryant. Grumpy's HVAC also helps property owners improve their sleep quality and relieve asthma symptoms by installing UV air purification systems.

  • Installation
  • Maintenance & Repair

Sunnyvale, CA

Expertise.com Rating

Review Sources

Google
4.7 (272)
Yelp
4.7 (184)

Why choose this provider?

Same Day Air Conditioning & Heating serves residential and commercial clients throughout Sunnyvale and its neighboring communities. It provides air conditioning repair, installation, maintenance, and sales, helping clients in keeping their properties comfortable. Its technicians work on a wide variety of air conditioning brands and models. The team also provides heating system services and is available around the clock for emergency HVAC repairs. Additionally, the company offers duct cleaning, replacement, sealing, and air quality control services.

  • Installation
  • Maintenance & Repair

Sunnyvale, CA

Expertise.com Rating

Review Sources

Yelp
4.9 (58)

Why choose this provider?

HVAC Guy assists clients in and around Sunnyvale who are having issues with their AC unit. The company serves residential and commercial clients, taking care of their AC units so they work better and keep reducing energy costs. Part of their AC service is maintenance, helping the unit last longer by repairing issues before they become irreparable. The HVAC Guy also offers furnace repair, chimney caps, and gutter service. It has been helping clients keep their cooling and heating systems working efficiently for more than 20 years.

  • Maintenance & Repair

Sunnyvale, CA

Expertise.com Rating

Review Sources

Google
5.0 (1)

Why choose this provider?

A-Z Techs Mechanical provides residential and commercial HVAC solutions in the Greater San Jose area, including Sunnyvale. This HVAC Excellence Certified company designs, installs, maintains, and repairs air conditioning compressors for outdoor units, as well as air handlers and evaporator coils for indoor units. It carries cooling equipment from manufacturers such as Carrier, Coleman, American Standard, Bryant, and Noritz. A-Z Techs Mechanical also aims to enhance a home system's efficiency by installing humidifiers or dehumidifiers and providing programmable thermostats.

  • Installation
  • Maintenance & Repair

1255 Cortez Drive #3, Sunnyvale, CA 94086

Expertise.com Rating

Review Sources

Yelp
4.6 (14)

Why choose this provider?

Quick Heating Cooling is a locally owned company that assists residents in Sunnyvale and the neighboring areas with their AC concerns. It repairs different brands and models of air conditioning units, which include Westinghouse, Lennox, Goodman, and Rheem. The company works with a local distributor to replace faulty or broken parts. Quick Heating Cooling also carries various Bryant and Carrier products for new installations. The contractor is an ACCA member, and its technicians are NATE-certified.

  • Water Heaters
  • Furnaces
  • Indoor Air Quality Improvement

830 Stewart Dr, Sunnyvale, CA 94085

Expertise.com Rating

Why choose this provider?

Ice Man Heating & Cooling Repair is a Sunnyvale-based business that caters to small business owners and homeowners in the area and nearby locations. It assists clients in obtaining comfy and cozy premises by providing air conditioning services. Its technicians are licensed, equipped with fully supplied trucks, and available around the clock to install, maintain, and repair different brands and models of cooling systems. In addition, the company offers air quality control and duct sealing, cleaning, and replacement solutions.

  • Maintenance & Repair

3314 Victor Ct, Santa Clara, CA 95054

Expertise.com Rating

Why choose this provider?

Fuse is a heating and air conditioning specialist in Sunnyvale. Its technicians perform the repair, installation, and replacement of residential and commercial cooling equipment. They resolve various AC concerns, such as irregular temperatures, unusual vibrations or sound, and clogged drain lines. Their eco-friendly repair solutions include recycling old AC units that they removed. Fuse shares with clients tips on how to improve an air conditioner's performance. The contractor also sets up rooftop HVAC, variable refrigerant flow, and ductless split systems.

  • Maintenance & Repair

3131 Homestead Rd, Santa Clara, CA 95051

Expertise.com Rating

Why choose this provider?

Masters4U Appliance Repair Services caters to residents of Sunnyvale and surrounding areas who need various fixes for AC units. Its team remedies issues caused by filthy air filters, low refrigerant levels, and unclean condenser coils. The company works on products from established manufacturers like LG, Samsung, and Amana. The crew also works on refrigerators and kitchen appliances, including dishwashers. Masters4U takes on projects set in commercial establishments. Its technicians focus on avoiding unnecessary interventions or repairs.

  • Maintenance & Repair

PO Box 695, Campbell, CA 95009

Expertise.com Rating

Review Sources

Yelp
4.8 (73)
Google
4.8 (25)

Why choose this provider?

ABS Heating & Air Conditioning has been providing residential and commercial services in Sunnyvale and the surrounding areas for more than three decades. The family-owned and family-operated business helps clients maintain comfort in their premises by offering air conditioning services. Its team of specialists is NATE-certified and attends training regularly to handle various air conditioning jobs, such as installation, repair, and preventative maintenance. The company is an affiliate of the Air Conditioning Contractors Association of America.

  • Maintenance & Repair

3511 Thomas Rd. #10, Santa Clara, CA 95054

Expertise.com Rating

Why choose this provider?

Cool Aid Air Conditioning Heating & Refrigeration repairs and replaces broken AC units for residential and commercial clients in the Sunnyvale metro. Its technicians work on rooftop airconditioning units, air filters, exhaust blowers, and WiFi-controlled thermostats. The team also offers repair services for walk-in or reach-in freezers, ice machines, and wine coolers. The company has been with founder Glenn McKinny and his family since 1966. McKinny was a chief engineer for the U.S. Navy before venturing into the HVAC industry.

  • Water Heaters
  • Commercial

4225 Lora Dr, #36, Los Gatos, CA 95032

Expertise.com Rating

Review Sources

Google
4.9 (43)
Facebook
5.0 (21)

Why choose this provider?

ABC Service HVAC & Appliances caters to residential customers in Sunnyvale and the surrounding areas. The company has over eight years of experience providing AC repair services to address issues like Freon leaks, thermostat malfunction, capacitor problems, and electrical component malfunction. Its group of technicians performs an issue diagnosis prior to repair and provides estimates if any replacement is required. In addition, they install and repair heat pumps, ductless wall-mounted ductless split systems, furnaces, and appliances.

  • HVAC Contractor
  • Commercial

1165 Lincoln Ave #8653, San Jose, CA 95155

Expertise.com Rating

Review Sources

Yelp
4.9 (728)
Google
5.0 (82)

Why choose this provider?

CostLess Heating and Cooling Services is a family-owned enterprise catering to residents of Sunnyvale and nearby metros for more than 15 years. The company provides a variety of air conditioning services, including repairs and installation. It also cleans air ducts by utilizing an air pressure machine. In addition, its technicians handle preventative maintenance which commonly involves checking condenser coils, testing electrical connections, and calibrating thermostats. Other services offered include dryer vent cleaning and furnace repairs.

  • Duct Cleaning

1151 Ringwood Ct.,Suite #50, San Jose, CA 95131

Expertise.com Rating

Why choose this provider?

Aquinas HVAC, Inc., handles the installation, repair, and maintenance of heating and cooling systems for residential and commercial property owners throughout Sunnyvale. Its EPA-certified staff is available for on-site consultations, inspections, and repairs on a same-day basis. It provides customized maintenance plans that involve bi-annual assessments, tune-ups, and cleanups for improved system lifespan and indoor air quality. It also provides various air conditioning units that take into account each client's utility needs, property space, and preferred cooling system type.

  • Installation
  • Maintenance & Repair

1465 N. Milpitas Blvd, Milpitas, CA 95035

Expertise.com Rating

Review Sources

Google
4.8 (298)
Yelp
4.6 (231)
HomeAdvisor
4.6 (208)

Why choose this provider?

Comfort Energy is a full-service AC repair and installation company serving Sunnyvale and its surrounding areas. The company, established in 2015, caters to residential and commercial customers and fixes various makes and models of air conditioners. In addition to air conditioning units, it handles advanced air filtration systems, furnaces, water boilers, and multi-zone heating and cooling systems. Comfort Energy's team of technicians has a combined 30 years of field experience and works to provide clients with energy-saving solutions. The company also has a 24-hour repair crew available.

  • Installation
  • Maintenance & Repair

Compare our Top AC Repair Services

NameExpertise RatingAddressPromotionsLearn more
All HVAC and General Construction
1463 Jackson St, Santa Clara, CA 95050
Grumpy's HVAC
493 Vine Ave, Sunnyvale, CA 94086
Same Day Air Conditioning & Heating
HVAC Guy
A-Z Techs Mechanical
Quick Heating Cooling
1255 Cortez Drive #3, Sunnyvale, CA 94086
Ice Man Heating & Cooling Repair
830 Stewart Dr, Sunnyvale, CA 94085
Fuse
3314 Victor Ct, Santa Clara, CA 95054
Masters4U Appliance Repair Services
3131 Homestead Rd, Santa Clara, CA 95051
ABS Heating & Air Conditioning
PO Box 695, Campbell, CA 95009
Cool Aid Air Conditioning Heating & Refrigeration
3511 Thomas Rd. #10, Santa Clara, CA 95054
ABC Service HVAC & Appliances
4225 Lora Dr, #36, Los Gatos, CA 95032
CostLess Heating and Cooling Services
1165 Lincoln Ave #8653, San Jose, CA 95155
Aquinas
1151 Ringwood Ct.,Suite #50, San Jose, CA 95131
Comfort Energy
1465 N. Milpitas Blvd, Milpitas, CA 95035

FAQs

  • How does air conditioning work?

    Residential and commercial air conditioning systems use pressurized refrigerant to remove excess heat and humidity. The refrigerant passes through a network of coils and valves that allow the coolant to absorb and release heat as it changes between its gas and liquid forms. Primary components include the evaporator and condenser coils, compressor, expansion valve, and fans.


  • How do I decide whether to repair or replace my AC?

    As a rule of thumb, replacement is recommended when repairs would exceed half the cost of a new system. Age, efficiency, and reliability are also deciding factors. Replacement is typically the best option for HVAC systems that are more than 10 years old and have problems with frequent breakdowns, decreased output, increased runtimes, excessive noise, or rising energy use. Alternatively, homeowners can multiply the age of the system by the estimated cost of repairs. If the amount exceeds $5,000, replacement is typically the best solution.

  • Can you repair an AC compressor?

    Compressor malfunctions are typically caused by faulty electrical connections, defective capacitors, and improper refrigerant levels that affect the system's operating pressure. Before calling a professional, homeowners can replace the air filter, double-check the thermostat settings, and hose off the outdoor unit to rule out minor maintenance-related problems. If these steps don't resolve the issue, the compressor may need to be replaced. Unfortunately, compressors aren't just one of the most critical components of the air conditioning system, they're also one of the most expensive. If the unit can't be repaired, a licensed HVAC contractor can determine whether a partial or full replacement is the best option.


  • How do I repair an air conditioning duct?

    Air ducts are responsible for a large portion of HVAC-related energy losses. According to the U.S. Environmental Protection Agency’s Energy Star program, 30% of heated and cooled air escapes from the ducts before it reaches its final destination. Some of the most common warning signs include hot and cold spots, odors, and low or no airflow. Loose ducts can be reconnected, and small cracks can be sealed with metallic foil tape. If the ducts are damaged, contaminated, or collapsed, it is usually time to call a professional. Trained AC technicians can also determine if the supply and return ducts are properly sized.


  • Does home insurance cover AC repairs?

    Homeowners’ insurance covers the cost of AC breakdowns caused by fire, lightning strikes, vandalism, or theft. To qualify for coverage, the homeowner must notify the insurance carrier of the loss and provide a report from a licensed contractor. Then, an insurance adjuster will evaluate the claim. Unfortunately, insurance coverage may only pay a limited amount, especially if the homeowner has a high-deductible policy.

  • How long does a new AC last?

    The average AC system has an expected lifespan of 14 years. Longevity can vary substantially depending on the unit's maintenance history and building-related factors that determine how often the system runs. Homeowners can extend the life of their HVAC equipment by scheduling annual maintenance, replacing filters monthly, and using recommended thermostat settings.

  • How do I maintain my AC to avoid needing repairs?

    Preventive AC maintenance is the key to increased longevity. Here are a few of the most beneficial tasks that homeowners can perform themselves.

    • Replacing air filters monthly
    • Using recommended thermostat settings
    • Keeping shades or blinds closed during the summer
    • Hosing off the outdoor coils to remove pollen and dirt
    • Monitoring utility bills for changes in consumption
    • Scheduling professional tune-ups every spring

    If problems arise, it's wise to contact a professional as soon as possible to avoid more extensive repairs. Responding quickly is the best way to prevent sudden breakdowns that may require a more expensive emergency service call.