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    Knockout Plumbing & Repipe

    4.8 (79 reviews)
    Open Open 24 hours
    Updated 3 weeks ago

    Services - Knockout Plumbing & Repipe

    Drain installation

    Drain repair

    Hot water recirculation pump installation

    12 More Services

    Hot water recirculation pump repair

    Plumbing inspection

    Plumbing installation or replacement

    Plumbing repair

    Sewer installation

    Sewer repair

    Toilet installation

    Toilet repair

    Water heater installation

    Water heater repair

    Water pipe installation

    Water pipe repair

    Knockout Plumbing & Repipe Photos

    Recommended Reviews - Knockout Plumbing & Repipe

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    Reviews With Photos

    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.

    Crawl space

    Top-Notch Service - Honest, Reliable, and Truly Stand Behind Their Work! Knockout Plumbing and Repipe did a full sewer line replacement for my home 2 years ago with a 10-year warranty. This weekend, I had a clog--they showed up immediately, snaked the line, and came back on a Sunday when the issue came back. They ran a camera, found a belly in the pipe caused by rocks, and fixed it right away--no charge, all under warranty. They checked the gradient, secured everything, and even promised to reassess if there's ever another issue. They also gave an optional quote to replace the line to the city but were 100% honest that it wasn't needed right now. What stood out the most? They refused a tip, valuing the relationship over a quick buck. So rare these days. So glad I chose them--they're responsive, professional, and genuinely care about their customers. Highly recommend!

    2-Way Clean Out, Camera Inspection and Professional-Grade Snaking My toilet had been backing up several times, and I was referred to this company through a friend. When I called, my call was answered promptly. Technician Martin not only arrived on time but also called ahead to confirm his arrival. I was very impressed with his professionalism, knowledge, and cleanliness--he even wore shoe covers before entering my home. He carefully inspected the issue and answered all my questions. Having already spoken with my best friend who is a plumber, I had a good understanding of the problem, and everything Martin explained matched exactly with what my friend had told me. That gave me confidence in his expertise. The company's pricing was very competitive and aligned with what my friend would have charged. More importantly, they offered a 5-year warranty on their work, which shows they stand behind the quality they provide. My service is scheduled for later today, and I'll be updating this review with photos and details of the completed work. Plumbing issues can be stressful, and it's not easy to find a company you can trust. So far, my experience with this company has been excellent.

    Final product after repair

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    3 years ago

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    Edgar R.

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    3 years ago

    Called the service for faucet leak and boiler replacement. Pricing not transparent, but quick and responsive.

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    Edgar R.

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    4 years ago

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    Edgar R.

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    3 years ago

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    Edgar R.

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    2 years ago

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    Edgar R.

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    3 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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    3 years ago

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    Edgar R.

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    3 years ago

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    Edgar R.

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    3 years ago

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    Edgar R.

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    2 years ago

    Very responsive and did a simple repair quickly and reasonably priced. I will use them again next time.

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    Edgar R.

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    4 years ago

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    Edgar R.

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    3 years ago

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    Edgar R.

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    4 years ago

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    4 years ago

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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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    3 years ago

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    Edgar R.

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    4 years ago

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    4 years ago

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    4 years ago

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    Edgar R.

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    3 years ago

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    Edgar R.

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    3 years ago

    What a wonderful service, changing the main water line, very professional polite, and knowledgeable.

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    Edgar R.

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    2 years ago

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    Edgar R.

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    4 years ago

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    Edgar R.

    Thank you Mei for the 5 star review!

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    3 years ago

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    Edgar R.

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    4 years ago

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    3 years ago

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    Edgar R.

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    4 years ago

    Called for sink drain blockage. Fast and good work in san jose area..got appointment fast

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    3 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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    4 years ago

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    4 years ago

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    3 years ago

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    4 years ago

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    Edgar R.

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    4 years ago

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    4 years ago

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    Page 2 of 2

    Ask the Community - Knockout Plumbing & Repipe

    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

    Read more highlights

    Water Heaters Masters

    Water Heaters Masters

    (837 reviews)

    I am still in the research process for this project, but I can say how impressed I am with Water…read moreHeaters Masters. They responded to my request so fast I thought it was a bot, but it wasn't. A real person called and left a message. I called back to explain what I was interested in and he scheduled an appointment for that day (I think). I was assured that I'd be called or texted when the technician was on his way. I expected to have to wait the full 2-hour window I was given, but no! I was called about 5 minutes before the window started to see if I was still available. The technician arrived exactly on time, right at the start of the window! After a short explanation of my needs he just said "OK, let's take a look at the space and talk about it." He explained every step of what they'd do to install a tankless water heater, he looked at the whole area to check for pipes, electrical access, spacing inside and out for a condensation line - making feel very comfortable that it would be planned before the installation to avoid last minute issues. A big plus, he told me he'd be part of the installation team. He also told me I should go ahead and get another few quotes. I think these guys are confident they're giving the prices in the sweet spot of costs. Then we spent time just talking about landscaping and plants! I'm not in a hurry to start this project, it's on my list of improvements and I'm just starting to investigate. However, I'm extremely impressed with the service given at this stage, the thorough approach in explaining, and the honestly. I will get another quote, but the next one has a high bar to cross; not only the service, but Water Heaters Masters quote was WELL below the only other quote I had gotten so far. I have a very good feeling about WHM. I'll come back to let you know more when I've finished the whole project.

    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!

    Knockout Plumbing & Repipe - plumbing - Updated June 2026

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