John Castro Plumbing
Company Overview
John Castro Plumbing and Construction focuses on TANKLESS water heaters the entire City of Los Angeles, including the San Fernando Valley, Santa Clarita Valley, Orange County, and Ventura County, and have recently expanded our services to Las Vegas, NV. We handle comprehensive plumbing and repair services, tankless systems, with a strong focus on bathroom and kitchen remodels. We excel in high-quality tile and stone installations at competitive wholesale prices!
Boasting 40 years of industry experience, we provide California's most competitive prices on tankless water heaters, plus we offer exclusive package deals for bathroom remodels. Our team is equipped for specialized custom projects. We offer a wide range of kitchen cabinets, and remodels can be completed in as little as 5 days!
John Castro Plumbing installs more tankless water heaters than any other plumber in the San Fernando Valley and can efficiently manage even minor repair tasks. John Castro Plumbing and Construction, along with our partners, offers the most hassle-free pricing on room additions.
Our mission is to deliver top-notch service at the best price!
Founded by John Castro in 1980. As one of California's longest-standing plumbing contractors, John Castro, a former insurance executive and a certified expert in all areas of residential and commercial plumbing. Continuing this tradition of excellence, Chris Castro serves clients in Los Angeles and Las Vegas! He is a member of the Board of Building and Fire Code Appeals, recognized as a Top Tier ""Ace Pro"" Rinnai Tankless Dealer/Installer, as well as a Top Tier Rheem Tankless provider. Chris has also managed Home Depot stores, and has worked as an experienced insurance agent with expertise in tankless water heaters and energy-efficient technology.
Business Services
- Bathtub installation
- Bathtub repair
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | Open 24 hours |
Tue: | Open 24 hours |
Wed: | Open 24 hours |
Thu: | Open 24 hours |
Fri: | Open 24 hours |
Sat: | Open 24 hours |
Sun: | Open 24 hours |
Recommended Customer Reviews

John is super honest and reliable. I will be going back to him in the future. My water heater broke down on a Sunday night, John came to the rescue and immediately got it running in less than an hour.

We had a problem with no hot water in one of our showers, and had already had a different plumber look at it with no result. Today was the day I decided I was going to get it fixed. Although it was a Saturday, I called John Castro Plumbing, thinking I would just get an answering machine. To my surprise, Chris Castro picked up the phone, and with a cheerful and helpful attitude to boot! He asked me a few questions, had me check the panel readings on our Rinnai tankless water heater, increase the temperature on the control panel, then test the water in the sink nearby, and narrowed it down to needing an adjustment on the limiter of the shower valve, and even walked me through how to take off the valve and do the adjustment! All of this over the phone and without asking for any fee, and with the honest intent to help. It felt like I was back in time to when service people were really there for you. We now have hot water, and I feel blessed to have called this business, which will be my ""go to"" plumber from now on!

Chris Castro is a treasure. Like many of the other reviewers here, I got tons of advice from him over the phone for free - on a Sunday night. Who does that? I will absolutely use him in the future. He is an encyclopedia of knowledge and professes to love tankless. He's one of the very lucky few who have found their calling and happiness. Also, Happy Birthday to his cat, Pedro!

Tankless water heater installed quickly, cleanly, and expertly. No hesitation to recommend them.

My Rinnai tankless water heater was displaying Code 11 indicating an ignitor problem, I contacted Chris Castro and after a quick phone conversation he sent me a DIY YouTube video and I fixed the problem in 10 minutes with cost under 8 dollars. I sincerely appreciate the honest assessment and help!!
Jeff

My rannai tankless water heater was't giving me hot enough water, I was instructed how to increase temp. When the shower was still not hot enough I was instructed on how to remove safety device to raise temp. I can finally enjoy a nice hot shower! Very helpful and courteous, couldn't recommend more.

John was fantastic! On time, neat, his knowledge of tankless water heaters is invaluable. I will be using him on another project. If he can't help you, he knows someone that can in a pinch.

My tankless water heater kept having numerous issues with water heating. We have tried numerous plumbers, and even called the main company, but we kept hitting walls until we called Chris with John Castro Plumbing. It's the holiday, and no one was available to actually come over. Not only did Chris take our call, but he was able to FaceTime us and troubleshoot the issue from Start to Finish! We don't have any more hot water issues and we are extremely pleased with his service! We recommend John Castro Plumbing to any household that want someone honest, friendly, helpful, and gets results quickly. Thank you so much Chris!!

The most important thing I look for in a service provider is integrity. Is their priority the well-being of the client or is to make money off the client. Chris Castro is off the charts when it comes to putting the client first.
I called because our tankless water heater was not working. Chris was super busy but took the time to troubleshoot over the phone. Instead of scheduling a future service call (with minimum charge), he actually gave me some pointers right over the phone and sent me a video with a simple fix to what he thought was the issue.
Result #1 = we got hot water within 15 minutes and saved several hours and at least a few hundred dollars (the amount that other service providers were quoting just to come take a look).
Result #2 = we are now a John Castro Plumbing customer for life and will be calling Chris whenever we have a plumbing need big or small. They might not have made anything this time, but they are sure to get lots of business from us over the next decades.
Thanks Chris Castro!

When we needed a replacement tankless water heater, John was fast, knowledgeable and thorough. He came through quickly, and had the new water heater installed a couple hours after showing up.