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 54.9628 reviews
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Excellent628 reviews
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Chuck Woon profile picture
Chuck Woon
16 October 2026
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We are extremely satisfied with Nam Park’s work with our water heater installation. Nam was very friendly, professional, and knowledgeable. Thank you, Nam👍
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James Miller
16 October 2026
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The service was friendly and efficient. I did feel that the cost was too high
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Stephanie Moles
15 October 2026
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Excellent service informative comms and process very kind ad thoughtful.
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Samuel Riebel
15 October 2026
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Jacob Estrada installed our tankless water heater and was a complete professional from start to finish. Courteous, punctual, and genuinely knowledgeable — he explained every step, answered all of our questions patiently, and walked us through the new system before he left. The work is neat and the site was left spotless. If you can request a technician, ask for Jacob by name.
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Lyn Trombley
14 October 2026
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5/5 for Service Tech, Miguel A. On10/14/26 Replaced our 15y/o gas water heater. Same day installed. On time, Fast , efficient, Friendly, Answered all questions with knowledge and professionalism. Fair pricing for a Bradford White 50 gal gas water heater. 😊 Thank you, Miguel.
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Eddie Rivera
14 October 2026
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The technician Miguel was up front professional and worked very well by himself. He went through every step of the process and how long it will take. He completed on time and no mess. Recommend Castleworks if you need a water heater replaced.
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Mary Cueto
13 October 2026
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HAPPY TO SAY WE RATE CASTLEWORKS A ( 5 ) EXCELLENT JOB BY LIUS VALENCIA PROFESSIONAL, KNOWLEDGEABLE, AND KINDNESS THANK YOU WARM REGARDS, MARY CUETO &. FAMILY
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Phillip Nguyen
13 October 2026
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Technician Erik Vargas did a good job on installed the water heater.
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Diana Tan
12 October 2026
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On time, courteous and clear with instructions. Thumbs up!
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Wendy Maloon
9 October 2026
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Luis was very good at explaining what needed to be done and did a great job installing our water heater. The county permit inspector was very impressed with the work.

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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