Top Rated Hvac Contractors Serving Lagunitas, 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 Lagunitas including 94938. These heating and air conditioning experts provide AC tune ups and HVAC maintenance plans, and they also work on HVAC troubleshooting, ventilation systems and 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
1 of 4

Enviro Heating & Air Conditioning, Inc.

hidden

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

Main Services

Heating & Air Conditioning
loarrowgo
Air Duct Cleaning
loarrowgo

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
youtube
Diamond certified resource logo
Diamond Certified Company Report
Chris Street, President-Enviro Heating & Air Conditioning, Inc.
Chris Street, President
Expert Contributions
ratings icon
  • 179
  • Rating Surveys
video icon
  • 8
  • Photos
    & Videos
articles icon
  • 5
  • Researched Articles
    • Quick Connect
    Hours CLOSED NOW
    License:
    928565
    2 of 4

    Hassler Heating & Air Conditioning, LLC

    hidden

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

    Main Services

    Heating & Air Conditioning
    loarrowgo
    Home Energy Auditor
    loarrowgo

    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
    logo
    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
      3 of 4

      Ongaro & Sons

      hidden

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

      Main Services

      Electrical Contractor
      loarrowgo
      Plumbing
      loarrowgo
      Heating & Air Conditioning
      loarrowgo

      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
      youtube
      Diamond certified resource logo
      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
        4 of 4

        Kelly Plumbing & Heating, Inc.

        hidden

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

        Main Services

        Heating & Air Conditioning
        loarrowgo

        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
        youtube
        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 Lagunitas ZIP Codes

          94938

          Diamond Certified Hvac Contractors In Lagunitas

          Diamond Certified hvac contractors serving Lagunitas are rated an average of 4.6 out of 5 stars based on 1808 reviews of 77 rated hvac contractors.
          Diamond Certified hvac contractors in Lagunitas Avg. Star Rating.

            Map of Lagunitas, CA

            Lagunitas was founded in 1876, and today, your 2,715 neighbors enjoy bonfire gatherings, music lessons, fishing, bar hopping and bookstores. Lagunitians use Diamond Certified HVAC contractors for HVAC ductwork, furnace repair, HVAC maintenance plans, air filtration, ventilation systems, and more.

            Frequently Asked Questions for Heating & Air Conditioning in Lagunitas, CA
            Q: What are clients of Diamond Certified hvac contractors saying about contractors in Lagunitas, CA?
            A: Verified Kelly Plumbing & Heating, Inc. Customer, one of 350
            "That they were a reliable company That they call to remind me when things need to get done" -Nancy T.
            All Survey Responses for Kelly Plumbing & Heating, Inc.
            Verified Ongaro & Sons Customer, one of 278
            "They did a pretty big job. They're detailed, hardworking, and they finished every part of the job. I don't know how to put this, but I like that it was just one call on my end and everything got done. I didn't have to deal with multiple vendors or subcontractors. They pretty much did it all." -Happy H.
            All Survey Responses for Ongaro & Sons
            Verified Burkell Plumbing, Inc. Customer, one of 396
            "They are very professional and very prompt, but slightly expensive, so that's my only hesitation. They're prompt and efficient." -Geoffrey D.
            All Survey Responses for Burkell Plumbing, Inc.
            Verified Enviro Heating & Air Conditioning, Inc. Customer, one of 179
            "They are very thorough when making the initial plan and creative with solutions. They follow through and work with you." -Andrei S.
            All Survey Responses for Enviro Heating & Air Conditioning, Inc.
            Q: What are some of the most popular brands that Diamond Certified hvac contractors use when working with Lagunitas residents?
            A: Diamond Certified hvac contractors use top-quality brands like Daikin, Luxaire, American Standard, Armstrong Air and Napoleon.
            Q: What types of HVAC troubleshooting do hvac contractors offer?
            A: HVAC contractors typically offer a few different types of AC tune ups. These include a full system tune up, which is a thorough inspection and servicing of the AC system to ensure it is operating at peak efficiency; a filter change tune up, which is a service to replace the AC filter and clean the system to prevent clogs; and a coil clean tune up, which is a service to clean the condenser and evaporator coils to improve airflow and efficiency.
            Q: Can Diamond Certified hvac contractors work with Carrier products and similar items so I can get AC tune ups in Lagunitas?
            A: Yes, Diamond Certified HVAC contractors can work with Carrier products and similar items to provide AC tune ups in Lagunitas.
            Q: What did people search for when they wanted to find the best quality hvac contractors in Lagunitas?
            A: Ventilation Systems
            Air Conditioning
            Heat Pump Repair
            Furnace Repair
            Cooling System Installations

            Related Searches in Lagunitas, CA

            Search Heating & Air Conditioning in Nearby Locations

            Nearby Search Results

            Diamond Certified Companies Serving Lagunitas, CA

            Browse Types of Diamond Certified Companies Serving Lagunitas, CA

            View the Full Diamond Certified Guide to Heating & Air Conditioning