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.

ExcellentGoogle star 1Google star 2Google star 3Google star 4Google star 54.9655 reviews
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Excellent655 reviews
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Allan De Guzman profile picture
Allan De Guzman
10 November 2026
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CHRISTOPHER DOHRER is the best technician.he do amazing jobs👏🏻👏🏻
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Jerry Hubner profile picture
Jerry Hubner
10 November 2026
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Castle works responded with a technician on site within 2 hrs. Chris was professional and efficient in his presentation of the products available to us. We are very happy that the installation only took 2 hrs and that the completed project was left clean and looking great. Thank you Chris
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Danielle Benz profile picture
Danielle Benz
9 November 2026
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Miguel was the technician that arrived within a few hours of my call to check on my water heater. He quickly assessed the situation and provided me options. I decided to go with a new water heater and he had it installed in just a couple hours. I was able to give my toddler a warm bath before bedtime!
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william biagi profile picture
william biagi
9 November 2026
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On Sunday November 8 our water heater broke down and also had a bursted pipe. We called CastleWorks Water Heaters and they made sure we turned everything off properly and set up the water drain system correctly. Within 90 minutes a technician named Erik Vargas arrived, and let me tell You -- this Guy was fantastic! Erik went through all of our options and explained everything perfectly and then went to work installing our new Water Heater. After the technician Erik left our garage looking better than it ever has. CastleWorks gets a rating of💯👍🧑‍🔧 from us. W.P. Biagi
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Patricia Stockton
7 November 2026
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Christopher was a very knowledgeable technician. He explained everything he did and why he was doing it. He was also very nice and friendly. I would recommend him to anyone.
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Richard Hartnett profile picture
Richard Hartnett
6 November 2026
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Miguel did a great job! Very pleasant to talk to and very efficient. Also very knowledgeable about water heaters and installation.
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jeff carey profile picture
jeff carey
6 November 2026
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Jacob was our service technician. He was very professional and resolved the problem we had with our hot water heater.
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Jessie Lopez
6 November 2026
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Very friendly and knowledgeable
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Tom Thomas profile picture
Tom Thomas
2 November 2026
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Came out same day to inspect then replace my 8 yr old water heater. Knowledgeable technician Chris got to work after showing us the options.
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Thomas Lobo profile picture
Thomas Lobo
1 November 2026
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My tech was Anthony. Great attitude, super nice guy, very knowledgeable & helpful. His work was impeccable & fast service. Was a lowkey pricey but it was a Sunday & now we can take a hot shower! Wish the cost! Thanks Anthony

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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