Top Rated Hvac Contractors Serving Marshall, 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 Marshall including 94940. These heating and air conditioning experts provide furnace repair and air filtration, and they also work on HVAC ductwork, commercial air conditioning 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 Sep 30, 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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    Hassler Heating & Air Conditioning, LLC

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    Hassler offers full HVAC services including maintenance, repairs, water heaters, ductless, full system replacements, and heat pump conversions. Starti...
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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
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    • 30
    • Photos
      & Videos
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    • 5
    • Researched Articles
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      Hours CLOSED NOW
      License:
      770180
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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
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      • 5
      • Researched Articles
        • Quick Connect
        Hours CLOSED NOW
        License:
        215233
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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
        video icon
        • 4
        • Photos
          & Videos
        articles icon
        • 5
        • Researched Articles
          • Quick Connect
          861 Sweetser Avenue, Novato, CA 94945
          Hours CLOSED NOW
          License:
          688049
          Learn how to choose a Heating & Air Conditioning and more…

          Diamond Certified Hvac Contractors Serve These Marshall ZIP Codes

          94940

          Diamond Certified Hvac Contractors In Marshall

          Diamond Certified hvac contractors serving Marshall are rated an average of 4.6 out of 5 stars based on 1828 reviews of 77 rated hvac contractors.
          Diamond Certified hvac contractors in Marshall Avg. Star Rating.

            Map of Marshall, CA

            Marshall was founded in 1872, and today, your 2,135 neighbors enjoy running, redwood forests, wildflower viewing, clamming and forest wandering. Marshallians use Diamond Certified HVAC contractors for ventilation systems, heating, air conditioner repair, commercial air conditioning, AC tune ups, and more.

            Frequently Asked Questions for Heating & Air Conditioning in Marshall, CA
            Q: What are clients of Diamond Certified hvac contractors saying about contractors in Marshall, CA?
            A: Verified Burkell Plumbing, Inc. Customer, one of 396
            "They get the job done. They show up on time." -Rod C.
            All Survey Responses for Burkell Plumbing, Inc.
            Verified Enviro Heating & Air Conditioning, Inc. Customer, one of 179
            "They did their job, and they were dependable. I had no complaints. I had a great experience." -Ryan M.
            All Survey Responses for Enviro Heating & Air Conditioning, Inc.
            Verified Kelly Plumbing & Heating, Inc. Customer, one of 350
            "I would recommend them. They came to work on my heater and I was happy with the guy and his work. He came on time and was nice." -Carol B.
            All Survey Responses for Kelly Plumbing & Heating, Inc.
            Verified Ongaro & Sons Customer, one of 278
            "They are very reliable and honest. I feel very confident with their work. The people they send are very pleasant people. They are very reliable." -David E.
            All Survey Responses for Ongaro & Sons
            Q: What are some of the most popular brands that Diamond Certified hvac contractors use when working with Marshall residents?
            A: Diamond Certified hvac contractors use top-quality brands like Fujitsu, Armstrong Air, Goodman, Johnson Controls and Mitsubishi Electric.
            Q: What types of energy-efficient HVAC work do hvac contractors offer?
            A: HVAC contractors typically offer a variety of air filtration options, such as HEPA filters, activated carbon filters, electrostatic filters, and ultraviolet (UV) light filters. HEPA filters are high efficiency particulate air filters that can remove up to 99.97% of airborne particles that are 0.3 microns or larger in size. Activated carbon filters are great for removing volatile organic compounds (VOCs) and odors from the air. Electrostatic filters use an electric charge to attract particles, and UV light filters use a UV light to destroy airborne particles.
            Q: Can Diamond Certified hvac contractors work with Carrier products and similar items so I can get furnace repair in Marshall?
            A: Yes, Diamond Certified hvac contractors in Marshall can work with Carrier products and similar items for furnace repair.
            Q: What did people search for when they wanted to find the best quality hvac contractors in Marshall?
            A: Hvac Repairs
            Hvac Upgrades
            Hvac Maintenance Plans
            Furnace Repair
            Energy-Efficient Hvac Work

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