Water Heater Repair
 
Technician in Front of Van

No Hot Water? No Problem. Call the Water Heater Professionals at CastleWorks Today!

Water Heater Repairs in Dublin & The East Bay

30 Years of Experience Servicing Tank & Tankless Systems

When you need fast diagnosis for your broken water heater, CastleWorks is available 7 days a week for residents across the East Bay. Our professionals are familiar with all kinds of systems from gas to electric as well as tankless and heat pump units. Our fully stocked vans allow us to complete many repairs on the first visit, which means many people have hot water back on again the same day the problem is found. 

Reasons to Choose CastleWorks for Water Heater Repairs

Along with fast responses and turnaround time, our team has developed a reputation for excellence by putting clients’ needs foremost on every job. We’ve highlighted some more reasons why customer’s love working with us below: 

  • Our team is made up of specialists who focus exclusively on water heaters.
  • We provide free in-home estimates. 
  • The average technician on our team has at least 5 years of experience.
  • We have maintenance plans that help you get the longest lifespan out of your unit. 
  • We offer same day approval, no money down financing.

If it turns out that a replacement would be a better investment for you, we will help you select the best package that suits your specific needs.

We serve residents across the region in Dublin, Hayward, Livermore, Pleasanton, San Leandro, and beyond.

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Excellent607 reviews
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Dina Hsu profile picture
Dina Hsu
23 September 2026
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Luis is very professional and he explained everything very meticulously.
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Gary Smith profile picture
Gary Smith
23 September 2026
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Proffeciant @ Proffecianal ! Good 👍 attitude !
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Julia Fertziger
21 September 2026
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Luis was fantastic. So professional and able to explain the service well. He was patient with all my questions. You are fortunate to have him work in your company.
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Simin Litkouhi profile picture
Simin Litkouhi
14 September 2026
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He was professional and worked on a timely manner.
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Theodore Hazlett profile picture
Theodore Hazlett
10 September 2026
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The installation was efficient and the tech was friendly and informative. I would recommend CastleWorks to anyone with water heater issues.
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Ed Abramson profile picture
Ed Abramson
10 September 2026
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Salvador was wonderful. He introduced himself at the door and was very courteous while he was here. He did his inspection and gave us a fair quote. He had the necessary parts and was able to complete the repairs.
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Andrew Willrodt
9 September 2026
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After 1 appointment cancellation at request of firm, Justin arrived on the next scheduled visit. His service was thorough and well explained. He also decided to not bill extra on an existing condition and he chose not to pursue. Overall very happy with the service and confident in the work performed.
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Laura Bushwack
6 September 2026
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Installation was done in a timely and professional manner.
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Wendall Brock
5 September 2026
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Eric was very thorough and he is in excellent employee thank you very much he knows his job well
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Joseph Casella
2 September 2026
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Nam was great. He worked hard to get everything right. He was very thorough and also very easy to work with.

Common Issues with Conventional Water Heaters 

With conventional tank water heaters, temperature issues are something most homeowners encounter at some point. Concerns about leaks would be the second most common issue. We’ve listed out a few of the most common issues with tank heaters below.

  • You have cold water: There are many possible reasons for this that a water heater repair technician has to look for during troubleshooting. It can happen if the thermostat is faulty or there’s a problem with the heating element. It could be an issue with crossed hot and cold water lines. Sediment buildup can reduce efficiency as well.
  • You have a leak: Some leaks are simply due to issues with valves or fittings that need to be replaced or adjusted. But other leaks are the result of corrosion and degradation of the tank itself. These kinds of leaks require replacement and are common when a unit nears its lifespan at 8 to 12 years of age.
  • You hear popping sounds: This is caused by sediment buildup creating bubbles inside the tank. Flushing the tank is the best way to remove the sediment and it will restore some of the efficiency of the unit as well. 

Besides these, we also frequently deal with issues like sudden changes in water temperature, ignition problems, and pilot light problems.

Water Heater Repairs for Gas, Electric, Tankless, & Heat Pump Models

Our experienced technicians at Castleworks are familiar with all major brands of water heaters. Along with being Noritz Tankless Certified and Bradford White specialists, they are experienced with models designed by Rheem, Navien, Kenmore, Rinnai, and the models sold by big box stores. If you’re looking for a team that can answer all your questions about repairing and maintaining your specific unit, you’ve come to the right place.

For expert hot water heater repair in East Bay, call (925) 655-9202 today.

No Hot Water? No Problem. Call the Water Heater Professionals at CastleWorks Today!

We Offer Financing For Any Budget

Comfort, Efficiency & Savings. You can have it all!

Contact Us Today!

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The CastleWorks story began in 1995 and grew from the collaboration of many dedicated local professionals committed to service. Our family of businesses includes:

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