Top Rated Hvac Contractors Serving South San Francisco, CA

If you really care about choosing a quality hvac contractor, we’re here for you. Here’s your access to the best hvac contractors serving South San Francisco including 94080 and 94083. These heating and air conditioning experts provide thermostat installation and mini splits, and they also work on heating, cooling system installations and commercial air conditioning. For 22 years we’ve conducted the most accurate ratings and deepest research of local contractors, so you’ll be confident in choosing.

  • Last Updated Dec 05, 2025
  • 148,521 people sourced companies in Heating & Air Conditioning
    16,331 Verified Heating & Air Conditioning Customers Surveyed
16331
148521
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Airstars Corp.

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Airstars Corp. provides a variety of HVAC services for residential and commercial clients in San Mateo, Santa Clara, Contra Costa, and Alameda Countie...
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Main Services

Heating & Air Conditioning
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Additional Services

HVAC Repair, Installation & Maintenance, Thermostat Calibration, Air Flow & Performance Testing

Coverage Areas

San Mateo County, Santa Clara County, Contra Costa County, Alameda County

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  • 18
  • Rating Surveys
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  • 0
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  • 5
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    Hours CLOSED NOW
    License:
    1118050
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    Alternative Heating & Air Conditioning Solutions, Inc.

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    Alternative Heating & Air Conditioning Solutions, Inc. installs a variety of products that achieve optimum energy efficiency. The company is an active...
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    Main Services

    Heating & Air Conditioning
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    Additional Services

    HVAC System Design, Installation and Upgrades, Heat Pumps, Ductless Split Systems, Custom Duct Work, Service and Scheduled Maintenance

    Brands

    Mitsubishi, Trane, Daikin, Carrier, Bryant

    Coverage Areas

    San Mateo County, San Francisco, Santa Clara County, Alameda County

    Family Owned
    Family Owned
    Established in 2011
    Established in 2011
    Residential & Commercial
    Residential & Commercial
    Free Quotes & Consultations
    Free Quotes & Consultations
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    Heating & Air Conditioning - Alternative Heating & Air Conditioning Solutions, Inc. - San Mateo County
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    Mike Rebholtz, General Manager-Alternative Heating & Air Conditioning Solutions, Inc.
    Mike Rebholtz, General Manager
    Expert Contributions
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    • 231
    • Rating Surveys
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    • 4
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    • 5
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      License:
      967878
      3 of 6

      Degree HVAC, Inc.

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      Degree HVAC, Inc. provides a wide range of HVAC and plumbing services for residential, commercial, and industrial clients throughout San Mateo County....
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      Main Services

      Heating & Air Conditioning
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      Additional Services

      Indoor Air Quality, HVAC Maintenance, Installation & Repairs, Plumbing Maintenance, Installation & Repairs

      Brands

      Carrier Factory Authorized Dealer

      Coverage Areas

      San Mateo County

      Established in 2005
      Established in 2005
      Residential & Commercial
      Residential & Commercial
      Appointments Available
      Appointments Available
      Live Phone Call Answers
      Live Phone Call Answers
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      Heating & Air Conditioning - Degree HVAC, Inc. - San Mateo County
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      Rick Lazzarini, Owner-Degree HVAC, Inc.
      Rick Lazzarini, Owner
      Expert Contributions
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      • 260
      • Rating Surveys
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      • 25
      • Photos
        & Videos
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      • 5
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        License:
        886908
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        Carol Flynn, Inc.

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        Carol Flynn, Inc. installs Carrier furnaces and air conditioners as a Carrier Factory Authorized Dealer. The company maintains, repairs, and cleans al...
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        Main Services

        Heating & Air Conditioning
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        Air Duct Cleaning
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        Additional Services

        Service, Repair, Installation, Furnace Installations, Air Conditioning, Sheet Metal Work

        Brands

        Carrier Factory Authorized Dealer

        Coverage Areas

        The Bay Area

        Established in 1954
        Established in 1954
        Residential & Commercial
        Residential & Commercial
        Free Estimates
        Free Estimates
        Coupon on Website
        Coupon on Website
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        Heating & Air Conditioning - Carol Flynn, Inc. - The Bay Area
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        Juan Sandoval, President-Carol Flynn, Inc.
        Juan Sandoval, President
        Expert Contributions
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        • 545
        • Rating Surveys
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        • 10
        • Photos
          & Videos
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        • 5
        • Researched Articles
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          License:
          188751
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          Bayhill Heat & Air, Inc.

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          Bayhill Heat & Air, Inc. is an HVAC (heating, ventilating and air conditioning) contractor that serves homeowners in San Mateo, Santa Clara, Alameda a...
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          Main Services

          Heating & Air Conditioning
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          Additional Services

          Same-Day Service, Equipment Retrofit & Replacement, Installation & Replacement, Duct Installation & Replacement, Relocation, Free In-Home Estimates, Residential, Light Commercial

          Brands

          Carrier

          Coverage Areas

          San Mateo County, Santa Clara County, Alameda County, Part of San Francisco

          Established in 1981
          Established in 1981
          Residential & Commercial
          Residential & Commercial
          Same-Day Service
          Same-Day Service
          Free Estimates
          Free Estimates
          Diamond Certified Video Profile
          Heating & Air Conditioning - Bayhill Heat & Air, Inc. - San Mateo County
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          Ricardo Valderrama, Owner-Bayhill Heat & Air, Inc.
          Ricardo Valderrama, Owner
          Expert Contributions
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          • 286
          • Rating Surveys
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          • 19
          • Photos
            & Videos
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          • 5
          • Researched Articles
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            Hours CLOSED NOW
            License:
            917996
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            Bayside Mechanical, Inc.

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            Bayside Mechanical, Inc. provides sheet metal work and heating, ventilating, and air conditioning (HVAC) installation services for residenti...
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            Main Services

            Heating & Air Conditioning
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            Additional Services

            Heating, Air Conditioning

            Brands

            Lennox, Mitsubishi, Amana, Bryant, Carrier, Ares, First Air, Goodman, Sterling

            Coverage Areas

            The Bay Area

            Established in 2004
            Established in 2004
            Residential & Commercial
            Residential & Commercial
            Appointments Available
            Appointments Available
            Live Phone Call Answers
            Live Phone Call Answers
            Diamond Certified Video Profile
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            Diamond certified resource logo
            Diamond Certified Company Report
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            • 203
            • Rating Surveys
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            • 6
            • Photos
              & Videos
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            • 5
            • Researched Articles
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              Hours CLOSED NOW
              License:
              842690
              Learn how to choose a Heating & Air Conditioning and more…

              Diamond Certified Hvac Contractors Serve These South San Francisco ZIP Codes

              94080, 94083

              Diamond Certified Hvac Contractors In South San Francisco

              Diamond Certified hvac contractors serving South San Francisco are rated an average of 4.5 out of 5 stars based on 2291 reviews of 78 rated hvac contractors.
              Diamond Certified hvac contractors in South San Francisco Avg. Star Rating.

                Map of South San Francisco, CA

                South San Francisco was founded in 1908, and today, your 90,764 neighbors enjoy dining, libraries, surfing, fairs and brewery tours. South San Franciscans use Diamond Certified HVAC contractors for mini splits, HVAC troubleshooting, ventilation systems, HVAC repairs, energy-efficient HVAC work, and more.

                Frequently Asked Questions for Heating & Air Conditioning in South San Francisco, CA
                Q: What are clients of Diamond Certified hvac contractors saying about contractors in South San Francisco, CA?
                A: Verified Alternative Heating & Air Conditioning Solutions, Inc. Customer, one of 206
                "It is a pretty good company to work with. Convenient" -M.S.
                All Survey Responses for Alternative Heating & Air Conditioning Solutions, Inc.
                Verified Degree HVAC, Inc. Customer, one of 242
                "It's a valuable place to go. The good service that they provided and the attention to detail" -Gerardo L.
                All Survey Responses for Degree HVAC, Inc.
                Verified Bayhill Heat & Air, Inc. Customer, one of 283
                "Personable, efficient, hardworking, and detailed They didn't upsell me, they had a reasonable cost, and they finished at the time they promised me." -John C.
                All Survey Responses for Bayhill Heat & Air, Inc.
                Verified Carol Flynn, Inc. Customer, one of 545
                "They were good. Quick, they were quick." -Timothy D.
                All Survey Responses for Carol Flynn, Inc.
                Verified Bayside Mechanical, Inc. Customer, one of 203
                "I thought the work was really good. The only issue I have is the water heater is quite noisy when it is running, which is most of the time. You can hear the running sound from the entire downstairs. If you are getting a heat pump water heater investigate the noise level. The service is good, prompt and high quality." -Chris B.
                All Survey Responses for Bayside Mechanical, Inc.
                Q: What are some of the most popular brands that Diamond Certified hvac contractors use when working with South San Francisco residents?
                A: Diamond Certified hvac contractors use top-quality brands like Panasonic, Luxaire, Carrier, Johnson Controls and Maytag.
                Q: What types of air conditioning do hvac contractors offer?
                A: HVAC contractors typically offer a variety of heating system installations, such as forced air furnaces, boilers, radiant heating systems, and heat pumps. Forced air furnaces are the most common type of heating system and are powered by either natural gas or electricity. Boilers use hot water or steam to heat your home, while radiant heating systems use hot water or electric coils to emit heat. Heat pumps are a more energy-efficient option and use electricity to move heat from one location to another.
                Q: Can Diamond Certified hvac contractors work with Carrier products and similar items so I can get thermostat installation in South San Francisco?
                A: Yes, Diamond Certified hvac contractors can work with Carrier products and similar items to provide thermostat installation in South San Francisco.
                Q: What did people search for when they wanted to find the best quality hvac contractors in South San Francisco?
                A: Water Heater Repair
                Mini Splits
                Heating System Installations
                Hvac Repairs
                Furnace Repair

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