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    Knockout Plumbing & Repipe

    4.8 (89 reviews)
    Open Open 24 hours
    Updated 3 months ago

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    Main water pipe replacement
    Robert Y.

    ***4.5*** Great work and service. I had a pretty big job done. They replaced the main water pipe out to the street. It was completed promptly and they kept me informed during the down time (waiting for the city to approve the permit.) There was a minor issue with the reattachment of the sprinkler system. But when I advised them of the issue, it was handled the same day. I would use them again. They are pleasant to work with.

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    4 years ago

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    Edgar R.

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    4 years ago

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    Edgar R.

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    4 years ago

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    Edgar R.

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    4 years ago

    Mr Ramirez delivered me a good job after he replaced my broken water heater with a new one!

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    Edgar R.

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    4 years ago

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    Page 3 of 3

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    Review Highlights - Knockout Plumbing & Repipe

    Since there was a back up of the sewer system, Edgar immediate came out and gave me an estimate.

    Mentioned in 22 reviews

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    Water Heaters Masters

    Water Heaters Masters

    4.9
    (846 reviews)

    After getting a very high quote from a major plumbing chain, we decided to contact Water Heater…read moreMasters. We had an absolutely fantastic experience with Water Heater Masters. Alex sent our technician, Rojo, who helped install a new 40-gallon gas water heater in our indoor utility closet, and he was incredibly diligent, professional, and efficient from start to finish. Installing a tank in an inside closet can be tricky, but Rojo handled the entire job seamlessly in just 2 hours. He replaced everything with high-quality components, including: * New hot and cold water flex lines * A brand new water shut-off valve * A new gas flex line and sediment trap * Fully reworked earthquake straps (to meet California safety codes) * Properly updated T&P line and venting He also took care of the removal and disposal of our heavy 18 yr old tank, leaving the utility closet completely clean. If you want fair pricing, expert specialized service, and a technician who respects your time and home, call Water Heater Masters and ask for Rojo. Highly recommended!

    We were replacing a gas water heater with a hybrid electric heat pump water heater. Generally, this…read moretype of heater costs twice as much (price and installation) as a traditional electric water heater, but costs a lot less to run (and therefore you recoup the additional cost in a few years from lower operating costs). I had a very easy experience getting an on-site quote. I received 3 quotes for this job. 2 quotes, including this one, came in around $7100. I went with a third one at around $6700 (which included an additional mixing valve) and am very happy with my decision. Overall price was not a big part of my decision, but brand of water heater was. After doing some research online, the most recommended brands are AO Smith and Rheem (GE). Both higher quotes were for Navien, which has only been making heat pump water heaters for 1 year, but I was told that it is the most reliable brand. I did not understand how this claim could be made, given how short the duration of evaluation for this product. Even the worst appliances usually work for at least a year. So I requested a quote for AO Smith or Rheem, which I did not get. I'm not sure why my brand request was not honored, but it made me question whether I should go with a company that either has communication issues or maybe some type of deal with Navien that I was not informed about. Many water heater installers are preferred installers of certain brands, which means they can get better pricing, etc. I did not want to be a guinea pig for Navien.

    Knockout Plumbing & Repipe - plumbing - Updated August 2026

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