Top Rated Hvac Contractors Serving San Geronimo, 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 San Geronimo including 94963. These heating and air conditioning experts provide water heater repair and air conditioning, and they also work on indoor air quality, air filtration and HVAC maintenance plans. 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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Enviro Heating & Air Conditioning, Inc.

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Enviro Heating & Air Conditioning, Inc. installs, repairs, and maintains all types of HVAC equipment for residential and commercial clients in Sonoma,...
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Main Services

Heating & Air Conditioning
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Air Duct Cleaning
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Additional Services

HVAC Repair, Installation & Maintenance, Sheet Metal Fabrication

Coverage Areas

Sonoma County, Marin County, Napa County

Emergency 24/7
Emergency 24/7
Residential & Commercial
Residential & Commercial
Appointments Available
Appointments Available
Live Phone Call Answers
Live Phone Call Answers
Diamond Certified Video Profile
Heating & Air Conditioning - Enviro Heating & Air Conditioning, Inc. - Sonoma County
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Diamond Certified Company Report
Chris Street, President-Enviro Heating & Air Conditioning, Inc.
Chris Street, President
Expert Contributions
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  • 179
  • Rating Surveys
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  • 8
  • Photos
    & Videos
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  • 5
  • Researched Articles
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    Hours CLOSED NOW
    License:
    928565
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    Kelly Plumbing & Heating, Inc.

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    Kelly Plumbing & Heating, Inc. installs the latest technology in forced air furnaces, heat pumps and air conditioning systems for residents of Marin C...
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    Main Services

    Heating & Air Conditioning
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    Additional Services

    Central Heat Pump Systems, Forced Air Heating & Air Conditioning, Radiant Heat Boilers & Installations, Tankless & High Efficiency Water Heaters, Attic Fans, Air Duct Cleaning, Dryer Vent Cleaning, Duct Insulation, Heat Pump Water Heaters

    Brands

    Bradford White, Honeywell, Mitsubishi, Navien, Rinnai, Trane, Triangle Tube

    Coverage Areas

    Marin County, Sonoma County

    Family Owned
    Family Owned
    Residential Only
    Residential Only
    Appointments Available
    Appointments Available
    Live Phone Call Answers
    Live Phone Call Answers
    Diamond Certified Video Profile
    Heating & Air Conditioning - Kelly Plumbing & Heating, Inc. - Marin County
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    Diamond certified resource logo
    Diamond Certified Company Report
    Owners Jim and Anna Kelly are dedicated to customer service.-Kelly Plumbing & Heating, Inc.
    Owners Jim and Anna Kelly are dedicated to customer service.
    Expert Contributions
    ratings icon
    • 404
    • Rating Surveys
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    • 4
    • Photos
      & Videos
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    • 5
    • Researched Articles
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      861 Sweetser Avenue, Novato, CA 94945
      Hours CLOSED NOW
      License:
      688049
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      Ongaro & Sons

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      Ongaro & Sons provides a complete range of plumbing services for residential and commercial clients in Sonoma and Marin Counties. In addition to servi...
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      Main Services

      Electrical Contractor
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      Plumbing
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      Heating & Air Conditioning
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      Additional Services

      Plumbing, Heating & Cooling Service, Electrical Service, Repair & Installation, Indoor Air Quality, Water Heater Repair & Replacement, Sewer Cleaning & Replacement

      Brands

      American Standard, Trane, Mitsubishi

      Coverage Areas

      Sonoma County, Marin County

      Family Owned
      Family Owned
      Established in 1932
      Established in 1932
      Residential & Commercial
      Residential & Commercial
      Mobile Services Available
      Mobile Services Available
      Diamond Certified Video Profile
      Electrical Contractor - Ongaro & Sons - Sonoma County
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      Diamond Certified Company Report
      Ernie Ongaro, Co-owner-Ongaro & Sons
      Ernie Ongaro, Co-owner
      Expert Contributions
      ratings icon
      • 278
      • Rating Surveys
      video icon
      • 9
      • Photos
        & Videos
      articles icon
      • 5
      • Researched Articles
        • Quick Connect
        Hours CLOSED NOW
        License:
        215233
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        Hassler Heating & Air Conditioning, LLC

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        Hassler Heating & Air Conditioning, LLC is leading the way in California's electrification efforts, providing comprehensive HVAC services that include...
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        Main Services

        Heating & Air Conditioning
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        Home Energy Auditor
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        Additional Services

        Central Ducted Heat Pump, Ductless Mini-Split Heat Pump, Water Heater (Standard, Tankless, Heat Pump, Electric Resistance), Furnace, and A/C Installations and Repairs, Home Energy Assessments and Home Energy Score (HES) Assessments, Energy Upgrade Measures (Building Shell)

        Brands

        Bosch, Carrier, Mitsubishi, Navien, Rheem Water Heaters

        Coverage Areas

        Alameda County, Contra Costa County, Marin County

        Family Owned
        Family Owned
        Established in 1999
        Established in 1999
        Residential & Commercial
        Residential & Commercial
        Financing Available
        Financing Available
        Diamond Certified Video Profile
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        Diamond certified resource logo
        Diamond Certified Company Report
        Tim Hassler, General Manager-Hassler Heating & Air Conditioning, LLC
        Tim Hassler, General Manager
        Expert Contributions
        ratings icon
        • 288
        • Rating Surveys
        video icon
        • 30
        • Photos
          & Videos
        articles icon
        • 5
        • Researched Articles
          • Quick Connect
          Hours CLOSED NOW
          License:
          770180
          Learn how to choose a Heating & Air Conditioning and more…

          Diamond Certified Hvac Contractors Serve These San Geronimo ZIP Codes

          94963

          Diamond Certified Hvac Contractors In San Geronimo

          Diamond Certified hvac contractors serving San Geronimo are rated an average of 4.6 out of 5 stars based on 1929 reviews of 77 rated hvac contractors.
          Diamond Certified hvac contractors in San Geronimo Avg. Star Rating.

            Map of San Geronimo, CA

            San Geronimo was founded in 1878, and today, your 3,800 neighbors enjoy kite surfing, cinemas, potlucks, outdoor theaters and art classes. San Geronimans use Diamond Certified HVAC contractors for ductless heating and cooling systems, HVAC maintenance plans, air conditioning, heating, water heater repair, and more.

            Frequently Asked Questions for Heating & Air Conditioning in San Geronimo, CA
            Q: What are clients of Diamond Certified hvac contractors saying about contractors in San Geronimo, CA?
            A: Verified Kelly Plumbing & Heating, Inc. Customer, one of 350
            "Give them a call, they do multiple services and some smaller repairs. They are reliable. The work is solid." -Mike P.
            All Survey Responses for Kelly Plumbing & Heating, Inc.
            Verified Ongaro & Sons Customer, one of 278
            "Quick response, professional advice and a reasonable price Professional knowledge" -Vick C.
            All Survey Responses for Ongaro & Sons
            Verified Enviro Heating & Air Conditioning, Inc. Customer, one of 179
            "I would recommend them. They got the job done and they were nice guys." -Jim C.
            All Survey Responses for Enviro Heating & Air Conditioning, Inc.
            Verified Burkell Plumbing, Inc. Customer, one of 396
            "They are high quality and a little bit on the high end of the price range to achieve that. Nothing specific comes to mind." -Josh M.
            All Survey Responses for Burkell Plumbing, Inc.
            Q: What are some of the most popular brands that Diamond Certified hvac contractors use when working with San Geronimo residents?
            A: Diamond Certified hvac contractors use top-quality brands like Heil, Trane, American Standard, Rheem and Napoleon.
            Q: What types of HVAC troubleshooting do hvac contractors offer?
            A: HVAC contractors typically offer several types of air filtration systems. These systems range from basic air filters to high-tech whole-house air cleaners. Basic air filters are designed to capture large particles such as dust, pollen, and pet dander. High-tech whole-house air cleaners are designed to capture smaller particles such as smoke and bacteria. Some of these systems are also equipped with UV light technology, which can kill airborne germs and bacteria. Ultimately, the type of air filtration system that is right for your home depends on the size and layout of your home, as well as the level of air quality you desire.
            Q: Can Diamond Certified hvac contractors work with Carrier products and similar items so I can get water heater repair in San Geronimo?
            A: Yes, Diamond Certified hvac contractors work with Carrier products and similar items to provide water heater repair in San Geronimo.
            Q: What did people search for when they wanted to find the best quality hvac contractors in San Geronimo?
            A: Air Conditioning
            Hvac Ductwork
            Air Filtration
            Mini Splits
            Air Conditioning

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