Top Rated Hvac Contractors Serving Portola Valley, 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 Portola Valley including 94028. These heating and air conditioning experts provide mini splits and ductless heating and cooling systems, and they also work on HVAC upgrades, heat pump repair 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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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
Diamond Certified Video Profile
Heating & Air Conditioning - Carol Flynn, Inc. - The Bay Area
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Diamond Certified Company Report
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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    Hours CLOSED NOW
    License:
    188751
    2 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
    Diamond Certified Video Profile
    Heating & Air Conditioning - Degree HVAC, Inc. - San Mateo County
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    Rick Lazzarini, Owner-Degree HVAC, Inc.
    Rick Lazzarini, Owner
    Expert Contributions
    ratings icon
    • 260
    • Rating Surveys
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    • 25
    • Photos
      & Videos
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    • 5
    • Researched Articles
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      Hours CLOSED NOW
      License:
      886908
      3 of 6

      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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      Diamond Certified Company Report
      Ricardo Valderrama, Owner-Bayhill Heat & Air, Inc.
      Ricardo Valderrama, Owner
      Expert Contributions
      ratings icon
      • 286
      • Rating Surveys
      video icon
      • 19
      • Photos
        & Videos
      articles icon
      • 5
      • Researched Articles
        • Quick Connect
        Hours CLOSED NOW
        License:
        917996
        4 of 6

        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
        Diamond Certified Video Profile
        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
        ratings icon
        • 231
        • Rating Surveys
        video icon
        • 4
        • Photos
          & Videos
        articles icon
        • 5
        • Researched Articles
          • Quick Connect
          Hours CLOSED NOW
          License:
          967878
          5 of 6

          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
          loarrowgo

          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
          ratings icon
          • 203
          • Rating Surveys
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          • 6
          • Photos
            & Videos
          articles icon
          • 5
          • Researched Articles
            • Quick Connect
            Hours CLOSED NOW
            License:
            842690
            6 of 6

            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
            loarrowgo

            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

            Diamond Certified Video Profile
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            Diamond certified resource logo
            Diamond Certified Company Report
            ratings icon
            • 18
            • Rating Surveys
            video icon
            • 0
            • Photos
              & Videos
            articles icon
            • 5
            • Researched Articles
              • Quick Connect
              Hours CLOSED NOW
              License:
              1118050
              Learn how to choose a Heating & Air Conditioning and more…

              Diamond Certified Hvac Contractors Serve These Portola Valley ZIP Codes

              94028

              Diamond Certified Hvac Contractors In Portola Valley

              Diamond Certified hvac contractors serving Portola Valley are rated an average of 4.5 out of 5 stars based on 2110 reviews of 78 rated hvac contractors.
              Diamond Certified hvac contractors in Portola Valley Avg. Star Rating.

                Map of Portola Valley, CA

                Portola Valley was founded in 1956, and today, your 5,768 neighbors enjoy geocaching, golfing, letterboxing, beach walks and sunbathing. Portola Valleyans use Diamond Certified HVAC contractors for HVAC ductwork, HVAC troubleshooting, HVAC maintenance plans, heat pump repair, heating system installations, and more.

                Frequently Asked Questions for Heating & Air Conditioning in Portola Valley, CA
                Q: What are clients of Diamond Certified hvac contractors saying about contractors in Portola Valley, CA?
                A: Verified Bayside Mechanical, Inc. Customer, one of 203
                "They seem to be very competent and honest. The fact that Mike Rebholtz himself came out, his personal knowledge and involvement reassured me. It demonstrated his competence and that of the company itself." -Bernard H.
                All Survey Responses for Bayside Mechanical, Inc.
                Verified Carol Flynn, Inc. Customer, one of 545
                "They did the work with no fuss. They did the work while we were away." -Amy M.
                All Survey Responses for Carol Flynn, Inc.
                Verified Degree HVAC, Inc. Customer, one of 242
                "I would recommend them. Can't think of anything." -Natalie L.
                All Survey Responses for Degree HVAC, Inc.
                Verified Bayhill Heat & Air, Inc. Customer, one of 283
                "They are fast and expedient, but they don't spend enough time with the customer. They were fast and polite." -Nancy C.
                All Survey Responses for Bayhill Heat & Air, Inc.
                Verified Alternative Heating & Air Conditioning Solutions, Inc. Customer, one of 206
                "They are a professional organization. We just used them on a big, complicated job, and they were able to handle everything." -A.C.
                All Survey Responses for Alternative Heating & Air Conditioning Solutions, Inc.
                Q: What are some of the most popular brands that Diamond Certified hvac contractors use when working with Portola Valley residents?
                A: Diamond Certified hvac contractors use top-quality brands like Maytag, Panasonic, LG Electronics, Sanyo and Rheem.
                Q: What types of commercial air conditioning do hvac contractors offer?
                A: HVAC contractors typically offer energy-efficient HVAC systems such as heat pumps, geothermal systems, high-efficiency furnaces, and air conditioners. Heat pumps are especially energy-efficient, as they can both heat and cool a home using the same system. Geothermal systems are even more efficient, as they use the earth's natural thermal energy to heat and cool a home. High-efficiency furnaces use a two-stage burner to reduce energy consumption, while high-efficiency air conditioners can reduce cooling costs by up to 30%.
                Q: Can Diamond Certified hvac contractors work with Carrier products and similar items so I can get mini splits in Portola Valley?
                A: Yes, Diamond Certified hvac contractors can work with Carrier products and similar items to install mini splits in Portola Valley.
                Q: What did people search for when they wanted to find the best quality hvac contractors in Portola Valley?
                A: Hvac Troubleshooting
                Mini Splits
                Hvac Installation
                Hvac Ductwork
                Ductless Heating And Cooling Systems

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