Horizon Plumbing, Heating & Air

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Learn about our screening process

90% Recommended

16 Years In Business

Company Details

  • Verified Licenses


120 San Carlos Way
Novato, CA 94945


  • Mon: 8:00 AM - 5:00 PM
  • Tue: 8:00 AM - 5:00 PM
  • Wed: 8:00 AM - 5:00 PM
  • Thu: 8:00 AM - 5:00 PM
  • Fri: 8:00 AM - 5:00 PM
  • Sat: 9:00 AM - 5:00 PM
  • Sun: 9:00 AM - 5:00 PM
View All Details & Credentials


Service Details

    Areas of Expertise

    • Drain Cleaning - Sewer Repair or Replace
    • Faucets, Fixtures, Toilets - Repair or Replace
    • Water Heaters - Tankless Water Heaters
    • Re-Pipe - Pipe Repair or Replacement
    • Furnace, Heater, Air Conditioning Unit - Repair or Replace

    Cost Information

    • Warranty Offered
    • Credit Cards Accepted


    21 Verified Reviews
    • 5
    • 4
    • 3
    • 2
    • 1

    Highly rated for

    • Quality
    • Customer Service
    Showing 1-10 of 21 reviews Showing 0 reviews
    5.0 Susan A. Novato, CA

    Darren was fantastic! Called, set up time, called back, came by to look, went to get parts, came back on time as scheduled & fixed the leak! All this in one day! Courteous, clean, better price than another plumber & did the job with a great attitude! Definitely will be my forever plumber!!

    5.0 Jose D. Petaluma, CA

    I just would like to say thank you, Darren is a very honest men . Next time that you or any one need a honest men call Darren.

    5.0 Marylin S. Petaluma, CA

    Timely, helpful, would definitely hire again.

    5.0 Dan P. Santa Rosa, CA

    Very prompt, took care of replacing my sump pump which was no easy task. Very pleasant, very knowledgeable.


    Darren was great at first, he agreed to put in a new water heater on a weekend when no one else would and that was a huge help and he didn't charge an extra surcharge for that. He ended up installing 2 new heaters and we thought everything was great. However, one of the heaters just stopped working, and he came out and didn't know what was wrong. Just fiddled with it and it started working again with no explanation and he didn't charge us. When the same problem came up again and we called him he wouldn't respond. I realized that I didn't have an actual invoice from him and requested a copy and no response..I left messages pleading with him to call so I could ask him a few questions about the water heater....all to no avail. We apparently have a lemon that has cost us more than the value of the water heater at this point. I believe he acted in a very unprofessional manner by not calling back and not even giving me a new invoice so I could try and get some help from the manufacturer.

    5.0 Ariana S. Sebastopol, CA

    Customer service was excellent. Darren answered my calls - or responded quickly if I ended up with voice mail. He communicated clearly and explained every step. I would recommend this company for both furnace and water heater replacement.

    5.0 Ada B. Novato, CA

    Knowledgeable friendly explained all options very professional will use again if necessary and will recommend to friends


    The job got done correctly which is the main thing! The cost was a little higher than I expected and I probably should have purchased my own faucet as the one installed doesn't appear to be as heavy duty as I would think was needed for an exterior faucet. This I put on myself for not asking enough questions before hand but...

    5.0 Shirley D. Petaluma, CA

    Darren kept me advised during the diagnosis of the problem and explained (with pictures) what the issues were the old galvanized pipes under the house and what needed to be done to fix them. One of the fixes was to replace about 10-12 ft. of pipe under the house. Yikes he had to do this in a tight crawl space. Loved the 10 year parts and labor warranty. Wouldn't hesitate to recommend him!

    Showing 1-10 of 21 results Showing 0 of 0 results
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