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    C Williams Plumbing

    4.8 (165 reviews)
    Open Open 24 hours

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    20 minutes

    Response rate

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    Before the installation

    I had my moen and sesmic gas shut off valve installed by Usam and from the moment he picked up my call to the very end he did a great job. Very professional and his prices were fair. You can tell that he cares about you and you are not just another paycheck. Very trustworthy guy, give him a chance to prove his worth.

    Bathroom Drain pipe
    Anthony M.

    Fast and excellent service. Fixed my drainage leak and also addressed a shower cartridge issue. + points for wearing shoes covers, thanks Usama.

    Mike S.

    I had C Williams Plumbing install an earthquake gas shut-off valve, and the whole experience was great from start to finish. The quote process was super easy, they responded quickly, gave me a fair price, and scheduled the job right away. The technician showed up on time, explained everything clearly, and got the work done fast and clean. I really appreciate how professional and respectful they were. Now I have peace of mind knowing my home is protected if there's ever an earthquake. I definitely recommend them for anyone who needs plumbing work done, reliable, honest, and easy to work with!

    Meon Flo install by C Williams plumbing
    Roxy P.

    C Williams Plumbing installed my Moen Flo smart shut-off valve and did a great job. The work was quick, clean, and done right the first time. Very professional and reliable highly recommend!

    Old vs new pipes
    Kevin W.

    We requested a quote from several different plumbers to have our galvanized pipes replaced. Out of everyone we spoke with, Usama gave the clearest and most knowledgeable explanation for replacing them, and he came across as genuinely helpful rather than trying to upsell us. He was highly responsive and we have used Usama several times for other plumbing issues around our house. Would highly recommend!

    Yami C.

    Such a big help at the Sunday afternoon! Service was great, and was very speedy, highly recommended! Big thanks to Usama!

    The original pipe with holes.

    Usama was very professional and hardworking when he created a two- way sewer clean out. I highly recommend Usama and his crew. They exhibited exceptional professionalism and meticulous attention to detail throughout the project. Our home was built in 1958, and upon excavating the main sewer line, they discovered a breach caused by roots from nearby bushes. The team skillfully replaced the damaged section with new piping and proactively re-routed the line to a less precarious location, significantly reducing the risk of future issues. Communication was outstanding; I was kept consistently updated on the progress of the project. Furthermore, their pricing is fair, and they proved to be highly reliable. The entire crew was polite, professional, and demonstrated a strong work ethic.

    Close up of Usama's work inside wall

    I had a plumbing issue when my Delta shower valve broke while replacing the cartridge, which required replacing the entire valve assembly inside the wall. Usama from C Williams Plumbing handled the job efficiently and professionally. From the photos I sent, he provided an accurate quote and arrived on time. Usama and his partner were polite, respectful, and careful to protect my floors. He listened to my requests, explained each step clearly, and always offered cost-effective options before proceeding. To access the valve, he went through my other bathroom wall with older tiles, minimizing damage so only a few tiles need replacement. He replaced the old galvanized pipes with copper, completed the work in about 2 1/2 hours, and left everything clean. He was also very conscientious about containing dust--closing doors, using a vacuum, and keeping other rooms clean throughout the process. He doesn't handle tile or wall patching but gave me a good referral for that. Overall, great service -- professional, courteous, and reasonably priced. Earlier yelp reviews helped me select this company.

    Hey I have a 1935 home with galvanized plumbing pipes. Every couple of months my hot water lines would be clogged with rust and run to a drip. So i decided to replace them for copper lines. I hired C Williams plumbing. They offered me a reasonable price and delivered. I had no idea how much galvanized piping needed replacing. My water quality is far better for drinking and showering. Usama, the lead plumber made sure that every hot water valve was clear of rust before leaving. Under the house, he took photos to show the quality of the work and how it had been done. If you have an older home, i highly recommend you do this now before the costs of copper skyrockets. Definitely worth it. (Allan in Maxwell Park)

    Usama did a great job replacing the 2 failing valves in a gas-line. He was responsive, his quote was competitive. I would hire him again.

    Stopper in pedestal sink.

    Usama and Julio were fantastic in knocking out almost whole-home plumbing in one afternoon - including the guts and new emergency shutoff valves for 3 toilets, 4 independent faucets (2 integrated, 2 widespread), a new kitchen sink that included a transfer of a relatively new garbage disposal, and the repair/replacement of a stopper of a pedestal sink. All work was great, tested to be leak free, and good as new. Thanks!

    Bathroom faucet.

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    13 years ago

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    7 years ago

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    9 years ago

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    Review Highlights - C Williams Plumbing

    He and his partner Eric were very efficient, wore shoe covers and were generally so respectful of our space.

    Mentioned in 10 reviews

    Read more highlights

    Save Plumbing

    Save Plumbing

    5.0
    (352 reviews)

    Wally came to our rescue yesterday when we had a mishap with the washer delivery which ended up…read morewith a broken water connection and water leak. Thank you Wally for your prompt service and help. No more leaks and it looks pretty nice too!

    I broke the metal supply line to the toilet in my half bathroom while trying to install a device…read more This caused a leak and brought on a great deal of panic. It was a Saturday afternoon. I called a few different plumbers that were highly rated on Yelp but they were all closed or not available when I needed them. I called Save Plumbing and Wally answered. I described the problem and he told me he could be there in 1-2 hours. I can't describe the relief I felt knowing he could help me out. I sent him a couple pictures of the damage and I asked him to give me a heads up when he was 30 minutes away so that I could plan my time accordingly. He wrote me back with a quote for the repair and texted me when he was 30 minutes away (it's a small thing to do but I've had so many contractors say they would do this but then they just show up or call when they're 15 minutes away). True to his word he came in about 2 hours. Wally arrived with his son. He was warm and friendly. I showed him to the bathroom and I asked him if I could watch him make the repair. I wanted to confirm for myself that this wasn't a repair I could've done. After seeing the process I was very happy I called Wally and didn't take the DIY route. Wally and his son were great. He did a thorough job. He replaced the angle valve and the supply line. He also replaced some other parts like the compression ring so that everything was new, which some plumbers wouldn't do because it's not critical to the issue I was having but it is a good thing to do for the long term. This was hands down one of the best experiences I've had with skilled laborers. I found his price to be very reasonable. I will definitely call Save Plumbing again when I have any plumbing needs.

    Star Rooter & Plumbing

    Star Rooter & Plumbing

    4.6
    (403 reviews)

    Five gold stars to Josh and his crew... not only for their professionalism, but also their friendly…read moreattitudes....truly amazing ... They dug 10ft trench with excavator access up the golf cart path bc roots had broken my connection toCCCSD main line ...put in new connecting pipes along with a clean out trap, and all in one day. Clean up was stunning... grass perked right back up along with all the plantings and pathways Star estimate was lower than two other bids and work guaranteed for 5 years Cheers to Josh his crew and Star Rooter and Plumbing Evelyn RHCC

    Let's be honest -- no one wants to call a plumber. It usually means something has already gone very…read morewrong... and that was definitely the case for me. I had a nasty clog backing things up and what turned out to be a small leak in one of my pipes. After a mild panic session, I called Star Rooter in Hayward. From the start, they were friendly and easy to talk to, which honestly helped calm me down. They came out, assessed everything, and let me know my line needed to be snaked. They explained what they were doing, didn't make me feel clueless, and got straight to work. The clog was cleared, and they were also able to fix the leak in my pipes the same visit. Huge relief. Now, plumbing work is not cheap -- and nobody is excited to pay for it -- but they got the job done efficiently and professionally. I'd rather pay once and have it handled correctly than deal with repeat issues. They mentioned there's a 10% discount if you say you found them on Yelp. I'm not 100% sure if it was applied to my final bill, but it's worth asking about when you call. Overall, solid experience. Friendly crew, quick response, and they fixed the problem without dragging things out. If you're in Hayward and dealing with plumbing drama, Star Rooter got it done for me.

    C Williams Plumbing - plumbing - Updated August 2026

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