Top Rated Hvac Contractors Serving Clayton, 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 Clayton including 94517. These heating and air conditioning experts provide air conditioning and ventilation systems, and they also work on cooling system installations, HVAC ductwork and heat pump repair. 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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Service Champions

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Service Champions is a premier provider of home services in Northern California. The company's expertise includes heating, cooling, plumbing, electric...
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Main Services

Air Duct Cleaning
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Heating & Air Conditioning
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Air Quality - Indoor
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Insulation
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Additional Services

Furnaces and Air Conditioners, Ductwork and Insulation, Electrical, Plumbing, Water Filtration, Air Filtration

Coverage Areas

East Bay, South Bay, Sacramento Areas

Residential Only
Residential Only
Weekend Hours
Weekend Hours
Free Estimates
Free Estimates
Live Phone Call Answers
Live Phone Call Answers
Diamond Certified Video Profile
Air Duct Cleaning - Service Champions - East Bay
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Diamond Certified Company Report
Kevin Comerford, Founder-Service Champions
Kevin Comerford, Founder
Expert Contributions
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  • 7374
  • Rating Surveys
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  • 33
  • Photos
    & Videos
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  • 5
  • Researched Articles
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    Hours CLOSED NOW
    License:
    817040
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    Hometown Heating & Air Conditioning

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    Hometown Heating & Air Conditioning, originally founded in 2012, is a family-owned and operated business led by Brian Waskow and his daughter, Jessica...
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    Main Services

    Air Quality - Indoor
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    Heating & Air Conditioning
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    Additional Services

    Installation, Maintenance & Repair of HVAC Systems, Electrostatic Filtration, Safety Inspections & Energy Audits, Smoke & Carbon Monoxide Detectors

    Brands

    American Standard, Bryant, Carrier, Honeywell, Lennox, Payne, TLC, Trane

    Coverage Areas

    Contra Costa County Alameda County, Solano County

    Family Owned
    Family Owned
    Emergency 24/7
    Emergency 24/7
    Residential Only
    Residential Only
    Appointments Available
    Appointments Available
    Diamond Certified Video Profile
    Air Quality - Indoor - Hometown Heating & Air Conditioning - Contra Costa County Alameda County
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    (L to R) General Manager Alex Lobban, Owner Jessica Lobban and Owner Brian Waskow-Hometown Heating & Air Conditioning
    (L to R) General Manager Alex Lobban, Owner Jessica Lobban and Owner Brian Waskow
    Expert Contributions
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    • 457
    • Rating Surveys
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    • 32
    • Photos
      & Videos
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    • 5
    • Researched Articles
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      License:
      1005143
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      Moore Mechanical Heating & Air Conditioning

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      Moore Mechanical Heating & Air Conditioning provides a wide range of HVAC services for residential and commercial clients in Alameda and Contra Costa ...
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      Main Services

      Heat - Radiant
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      Heating & Air Conditioning
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      Additional Services

      Heating & Air Conditioning System Replacements & Repairs, Radiant Heating, Ductless Mini Split Repairs & Installations, Ductwork Design Services, Repairs & Installations, Home Performance Evaluations, Annual HVAC Maintenance Programs, Commercial HVAC Repairs & Installations, Indoor Air Quality Diagnostics & Upgrades, Ventilation System Repairs & Installations, Whole House Fan Installations, Attic Ventilation Systems, Air Purification Systems, VRF Systems, Combustion Appliance Zone (CAZ) Tests, Residential & Commercial Heat Pump Water Heaters, Backup Residential Generator Installations, Electrical Panel Upgrades, Including Span Panels, New Residential Electrical Circuit Installations, Including Hot Tubs, Pool Pumps & Electric Vehicle Charging Stations, Generators & Generator Transfer Switches

      Brands

      Carrier, Rheem, Mitsubishi, York, Ruud, Bryant, Bradford White, SANCO2, Harvest Thermal, Noritz, Navien, American Standard, A. O. Smith

      Coverage Areas

      Contra Costa County, Alameda County

      Established in 1985
      Established in 1985
      Residential & Commercial
      Residential & Commercial
      Weekend Hours
      Weekend Hours
      Appointments Available
      Appointments Available
      Diamond Certified Video Profile
      Heat - Radiant - Moore Mechanical Heating & Air Conditioning - Contra Costa County
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      Jesse Casey, Regional Manager-Moore Mechanical Heating & Air Conditioning
      Jesse Casey, Regional Manager
      Expert Contributions
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      • 491
      • Rating Surveys
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      • 11
      • Photos
        & Videos
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      • 5
      • Researched Articles
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        Hours CLOSED NOW
        License:
        1085045
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        Qualtech Heating & Cooling

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        Qualtech Heating & Cooling has been providing a wide range of HVAC services for residential and light commercial clients throughout Contra Costa and A...
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        Main Services

        Heating & Air Conditioning
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        Additional Services

        Heating & A/C System (Including Furnaces and Ductless Heat-A/C Systems) Installation, Maintenance & Repair, Duct Cleaning, Indoor Air Quality, Whole-House Fans

        Brands

        American Standard, Bryant, Carrier, Lennox, Mitsubishi, QuietCool, Trane, York

        Coverage Areas

        Alameda County, Contra Costa County

        Family Owned
        Family Owned
        Established in 2007
        Established in 2007
        Senior Discount
        Senior Discount
        Residential & Commercial
        Residential & Commercial
        Diamond Certified Video Profile
        Heating & Air Conditioning - Qualtech Heating & Cooling - Alameda County
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        Diamond Certified Company Report
        Myriam Rios, Owner-Qualtech Heating & Cooling
        Myriam Rios, Owner
        Expert Contributions
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        • 287
        • Rating Surveys
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        • 17
        • Photos
          & Videos
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        • 5
        • Researched Articles
          • Quick Connect
          Hours CLOSED NOW
          License:
          905205
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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
            • Quick Connect
            Hours CLOSED NOW
            License:
            770180
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            AIS Heating & Air Conditioning

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            AIS Heating & Air Conditioning installs and repairs all types of HVAC systems for residential and commercial clients throughout the Greater Bay Area. ...
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            Main Services

            Heating & Air Conditioning
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            Air Quality - Indoor
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            Additional Services

            Heating and Air Conditioning Installation, Service, and Maintenance, Indoor Air Quality, Energy Audits, Heat Pump Systems, Heat Pump Water Heater Maintenance and Repair

            Brands

            Bryant

            Coverage Areas

            The Greater Bay Area

            Family Owned
            Family Owned
            Established in 2008
            Established in 2008
            Residential & Commercial
            Residential & Commercial
            Free Quotes & Consultations
            Free Quotes & Consultations
            Diamond Certified Video Profile
            Heating & Air Conditioning - AIS Heating & Air Conditioning - The Greater Bay Area
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            Diamond Certified Company Report
            Daniel A. Sojkic, Owner-AIS Heating & Air Conditioning
            Daniel A. Sojkic, Owner
            Expert Contributions
            ratings icon
            • 250
            • Rating Surveys
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            • 15
            • Photos
              & Videos
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            • 5
            • Researched Articles
              • Quick Connect
              Hours CLOSED NOW
              License:
              919756
              Learn how to choose a Heating & Air Conditioning and more…

              Diamond Certified Hvac Contractors Serve These Clayton ZIP Codes

              94517

              Diamond Certified Hvac Contractors In Clayton

              Diamond Certified hvac contractors serving Clayton are rated an average of 4.5 out of 5 stars based on 4401 reviews of 77 rated hvac contractors.
              Diamond Certified hvac contractors in Clayton Avg. Star Rating.

                Map of Clayton, CA

                Clayton was founded in 1857, and today, your 11,967 neighbors enjoy dance classes, playing cards, swimming, olive oil tasting and botanical gardens. Claytonians use Diamond Certified HVAC contractors for air conditioning, air filtration, HVAC troubleshooting, HVAC maintenance plans, AC tune ups, and more.

                Frequently Asked Questions for Heating & Air Conditioning in Clayton, CA
                Q: What are clients of Diamond Certified hvac contractors saying about contractors in Clayton, CA?
                A: Verified Service Champions Customer, one of 2575
                "I thought they did a good job. I would use them again. They were just on top of everything." -Rochelle G.
                All Survey Responses for Service Champions
                Verified Moore Mechanical Heating & Air Conditioning Customer, one of 491
                "I think they do a good job, but they always try to sell me stuff, which is okay, but really, every time is a little overboard. They do a good job. They are on time." -Duane W.
                All Survey Responses for Moore Mechanical Heating & Air Conditioning
                Verified Hometown Heating & Air Conditioning Customer, one of 432
                "Very professional and very knowledgeable They were customer friendly, and they answered my questions. They walked me through the steps and gave me information in an area that I did not understand." -Tim R.
                All Survey Responses for Hometown Heating & Air Conditioning
                Verified Clean Air HVAC, Inc. Customer, one of 262
                "You should definitely use them. I love that they are branching out into other areas." -Dan M.
                All Survey Responses for Clean Air HVAC, Inc.
                Q: What are some of the most popular brands that Diamond Certified hvac contractors use when working with Clayton residents?
                A: Diamond Certified hvac contractors use top-quality brands like Goodman, Fujitsu, Panasonic, Mitsubishi Electric and Ruud.
                Q: What types of HVAC troubleshooting do hvac contractors offer?
                A: HVAC contractors offer a variety of ductwork options, including flex duct, round metal duct, spiral metal duct, and rectangular metal duct. Flex duct is made of flexible materials and is often used in tight spaces, while round metal duct is generally the most efficient option. Spiral metal duct is more affordable and easier to install, but is not as efficient as round metal duct. Rectangular metal duct is the most commonly used and is versatile, as it can be used in a variety of applications.
                Q: Can Diamond Certified hvac contractors work with Carrier products and similar items so I can get air conditioning in Clayton?
                A: Yes, Diamond Certified hvac contractors can work with Carrier products and similar items to provide air conditioning in Clayton.
                Q: What did people search for when they wanted to find the best quality hvac contractors in Clayton?
                A: Ventilation Systems
                Heating System Installations
                Heat Pump Repair
                Heat Pump Repair
                Water Heater Repair

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