1. C Williams Plumbing

1. C Williams Plumbing

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C Williams Plumbing

4.8 (164 reviews)
Open Open 24 hours

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2 hours

Response rate

100%

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Reviews With Photos

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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2 months ago

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5 days ago

Very satisfied with Umasa. very professional and very honest. Will high recommend and will reach out for future projects.

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9 months ago

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8 months ago

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4 months ago

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10 months ago

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6 months ago

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1 year ago

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9 months ago

Fast response. took the time and explained the work. Came on a Saturday and fix the backup kitchen sink.

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2 years ago

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10 months ago

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9 months ago

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6 months ago

Great service! Professional and friendly and prompt, ready to fix at the hour of the call. 5 stars!

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2 years ago

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1 year ago

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8 months ago

Strong work. Walked me through the process. Very satisfied with the work. I would definitely work with C.Williams again!

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2 years ago

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5 years ago

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10 months ago

Usama and team was super knowledgeable and efficient with the reroute pipeline. All work was done in one day.

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1 year ago

Quick response for an emergency plumbing repair. Fixed quickly. Leo was very courteous and respectful of our property

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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

Water Heaters Masters

Water Heaters Masters

4.9
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Excellent and prompt service! Our old water heater started…read moreleaking. I was able to call and get a hold of Water Heaters Masters right away. Got good, fair ballpark quote over the phone from Alex, so knew what to expect. Got appmt scheduled for that afternoon with Brian (tech) to come check out our issue. As expected, he diagnosed the issue and was able to install a new water heater that same visit. Got the whole job or replacing the old water heater done within the afternoon!

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!

Hotter Water Heaters

Hotter Water Heaters

5.0
(374 reviews)

Hotter Water Heaters responded to my request for quote immediately at like 11:30 pm on Thursday,…read morewith a very reasonable quote, and was able to fit me in on Friday (even though they were going on vacation that weekend)! Hakim arrived on time with his son and they were super helpful and friendly, and answered every question I had. They pointed out the issues with the previous installation and fixed these hacks. You can tell that Hakim really knows what he's doing! The water heater replacement job was completed quickly and professionally, and they cleaned up everything afterwards. He gave me the link to register the water heater for the warranty. Everything was easy and looks great. Highly recommend!

Hakim and his son Shawn are the absolute best. We had an excellent experience with this company…read moreinstalling our Rinnai tankless water heater. They were the most competitively priced, easy to schedule, showed up on time, and were incredibly friendly. The installation process was smooth and professional--couldn't have asked for a better experience. Fast forward three years, and we suddenly weren't getting hot water. The only Rinnai approved plumber for servicing in our area came out and couldn't figure out the issue, which was frustrating. I called Hakim directly, and he came out the very next day and resolved the problem. His level of service was truly outstanding--knowledgeable, responsive, and great to work with. I'll definitely be a repeat customer and highly recommend them.

Monarch Plumbing & Rooter

Monarch Plumbing & Rooter

4.7
(272 reviews)

Hector and jack came through in the clutch! Shower and toilet became clogged simultaneously I tried…read morefor 30 mins straight plunging nothing In about an hour they managed to get both problems fixed with excellent customer service you can't go wrong choosing these dudes 5 stars!!!!!!

We live in an older home in Hayward that is built on a slab with no crawl space which means…read moreplumbing issues are a bigger headache (and more costly) than a home with a crawl space. Our hallway bathroom had a clogged and cracked P-trap along with a very slow draining bathtub. I messaged Monarch Plumbing and received a response within 30 minutes. I told them my availability for a consultation and they were able to accommodate with no issues. Jack was the service advisor that came out to meet with me and check the issues that we outlined. He explained the various options that were available to fix the problems and sent an estimate that outlined the various work that they could do as well as combining multiple repairs with the sink and installing a garbage disposal that I wanted replaced. After selecting the scope of work option and letting Jack know his team came out the next day to start working. When his team came out they smelled gas outside of our house and Jack immediately called me. I called PGE and they came out to check the situation and found a gas line had a leak on the side of the house where a tree had been recently removed. Jack and his team (Jack, Jose, Manuel, Hector, and Jose) were quick and professional with all plumbing issues and did fantastic work. They then also sent me an estimate for the repair/replacement of the gas line which they also repaired. The communication, professionalism, and quality of work that Monarch Plumbing, Jack and his team gave were all absolutely top notch-5 stars. We can't recommend them enough and in the event we ever have work that falls into their scope we will definitely do business with them again. Thank you Monarch Plumbing and Jack!

C Williams Plumbing - plumbing - Updated July 2026

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