Top Rated Hvac Contractors Serving San Lorenzo, 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 Lorenzo including 94580. These heating and air conditioning experts provide indoor air quality and AC tune ups, and they also work on air filtration, mini splits and ductless heating and cooling systems. 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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      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
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        Perfect Star Heating, Cooling, & Electrical

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        Perfect Star Heating, Cooling, & Electrical is a locally owned family business serving Alameda and Contra Costa Counties. The company’s motto, “We Kee...
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        Main Services

        Heating & Air Conditioning
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        Air Quality - Indoor
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        Additional Services

        Heating & Air Conditioning, Ductless Mini-Splits, Indoor Air Quality, Electrical, Solar

        Brands

        Lennox, Daikin, Amana, American Standard, Bryant, Carrier, Honeywell, Trane

        Coverage Areas

        Alameda County, Contra Costa County

        Family Owned
        Family Owned
        Emergency 24/7
        Emergency 24/7
        Senior Discount
        Senior Discount
        Residential Only
        Residential Only
        Diamond Certified Video Profile
        Heating & Air Conditioning - Perfect Star Heating, Cooling, & Electrical - Alameda County
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        (L to R): Ray Kinder, Senior Service Tech; Chris Donzelli, Owner; Dylan Donzelli, Service Tech-Perfect Star Heating, Cooling, & Electrical
        (L to R): Ray Kinder, Senior Service Tech; Chris Donzelli, Owner; Dylan Donzelli, Service Tech
        Expert Contributions
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        • 341
        • Rating Surveys
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        • 13
        • Photos
          & Videos
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        • 5
        • Researched Articles
          • Quick Connect
          Hours CLOSED NOW
          License:
          1022101
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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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          Diamond Certified Company Report
          Jesse Casey, Regional Manager-Moore Mechanical Heating & Air Conditioning
          Jesse Casey, Regional Manager
          Expert Contributions
          ratings icon
          • 491
          • Rating Surveys
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          • 11
          • Photos
            & Videos
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          • 5
          • Researched Articles
            • Quick Connect
            Hours CLOSED NOW
            License:
            1085045
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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
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            • 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 Lorenzo ZIP Codes

              94580

              Diamond Certified Hvac Contractors In San Lorenzo

              Diamond Certified hvac contractors serving San Lorenzo are rated an average of 4.5 out of 5 stars based on 5156 reviews of 78 rated hvac contractors.
              Diamond Certified hvac contractors in San Lorenzo Avg. Star Rating.

                Map of San Lorenzo, CA

                San Lorenzo was founded in 1869, and today, your 24,926 neighbors enjoy restaurants, corn mazes, parks, paddle boarding and oyster shucking. San Lorenzans use Diamond Certified HVAC contractors for air conditioner repair, HVAC maintenance plans, indoor air quality, furnace repair, thermostat installation, and more.

                Frequently Asked Questions for Heating & Air Conditioning in San Lorenzo, CA
                Q: What are clients of Diamond Certified hvac contractors saying about contractors in San Lorenzo, CA?
                A: Verified Hometown Heating & Air Conditioning Customer, one of 432
                "I would recommend them. They were professional and quick." -Ankit M.
                All Survey Responses for Hometown Heating & Air Conditioning
                Verified Service Champions Customer, one of 2575
                "They're knowledgeable. I think they were creative in finding solutions." -Whitney P.
                All Survey Responses for Service Champions
                Verified Moore Mechanical Heating & Air Conditioning Customer, one of 491
                "I recommend them all of the time. They keep appointments, they let me know when they will be there, and they have good technicians." -Richard H.
                All Survey Responses for Moore Mechanical Heating & Air Conditioning
                Verified Hassler Heating & Air Conditioning, Inc. Customer, one of 238
                "I would certainly recommend them as a possibility. They can look into them. The pricing was good and the communication was good." -Marvin C.
                All Survey Responses for Hassler Heating & Air Conditioning, Inc.
                Verified AIS Heating & Air Conditioning Customer, one of 250
                "I would recommend them. They were on time, and their prices seemed reasonable." -Bridget C.
                All Survey Responses for AIS Heating & Air Conditioning
                Q: What are some of the most popular brands that Diamond Certified hvac contractors use when working with San Lorenzo residents?
                A: Diamond Certified hvac contractors use top-quality brands like Goodman, Gree, Tempstar, Trane and Rheem.
                Q: What types of energy-efficient HVAC work do hvac contractors offer?
                A: HVAC contractors offer a variety of indoor air quality services, including air filtration, humidification, air purification, ventilation, and zone control. Air filtration systems can remove allergens, dust, pollen, and other airborne particles from the air, while humidification systems help maintain proper humidity levels in the home. Air purification systems can reduce the presence of harmful gases, odors, and smoke in the air. Ventilation systems help ensure that stale air is regularly exchanged with fresh air, and zone control systems allow for individual climate control in different areas of the home.
                Q: Can Diamond Certified hvac contractors work with Carrier products and similar items so I can get indoor air quality in San Lorenzo?
                A: Yes, Diamond Certified hvac contractors can work with Carrier products and similar items to provide indoor air quality solutions in San Lorenzo.
                Q: What did people search for when they wanted to find the best quality hvac contractors in San Lorenzo?
                A: Hvac Replacement
                Air Filtration
                Air Conditioner Repair
                Water Heater Repair
                Ductless Heating And Cooling Systems

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