The Best
Water Heater Services
In the East Bay Area
The CastleWorks Difference
Honest & Reliable

We are committed to providing the best water heater services in the area. Don’t just take our word for it, check out our Google Reviews!

Same-Day Service

No hot water? No Problem. Count on CastleWorks same-day service – we’re there for you when you need it most. 

Superior Quality

CastleWorks partners with the best manufacturers to provide high quality, energy efficient water heaters that are made to last.

Technician in Front of Van

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

Water Heater Plumbers in Dublin

Serving the East Bay of San Francisco 

If you’ve run out of hot water, don’t panic. The team at CastleWorks Water Heaters has over 3 decades of experience providing installation, repairs, and maintenance for homeowners in the East Bay. We show up quickly to diagnose your problems and provide fast turnaround times so that you can get back into your routine without too much delay. Our water heater experts are familiar with the various types of models including tankless, electric, gas, or heat pump.

Why CastleWorks is becoming one of the most popular water heater companies in the East Bay:

  • Our seasoned team members have 7-10 years of experience. 
  • We are open for service 7 days a week. 
  • We can install a brand new unit in just 3 hours. 
  • We offer 4 different install packages to suit your specific needs. 
  • Certified installers of Noritz Tankless Systems and HALO Water Filters.

Our team understands that you may have many questions about your system if it’s not working properly. We will walk you through the benefits of installing a new unit if your tank is leaking, but you can trust us not to oversell you on equipment that you don’t truly need.

Water Heater Repair Services in Dublin

Some problems with water heaters are easy fixes. But others are more of an investment to repair. Shortly after arriving, we will put together a clear diagnosis of your problem with a free estimate breaking down the costs so you know exactly what’s wrong and what it will cost.

Our technicians are familiar with all kinds of problems including:

  • Leaks from faulty valves, gaskets, or tank 
  • Temperature problems from faulty heating elements 
  • Tank corrosion and rusty water 
  • Sediment buildup inside the tank 
  • Pilot light and thermocouple problems 
  • Pressure relief valve malfunctions  
  • Strange noises

If you’re facing any of these problems, you can be confident that our East Bay water heater specialists have a solution.

ExcellentGoogle star 1Google star 2Google star 3Google star 4Google star 54.9656 reviews
4.9Google star 1Google star 2Google star 3Google star 4Google star 5
Excellent656 reviews
Posted on Google Google
Andrew Lamson profile picture
Andrew Lamson
11 November 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Nam Park was an excellent technician. He was patient and thorough. He was very careful with the house and wore protective booties until he put down blankets. He updated me regularly and worked expediently. Would highly recommend.
Posted on Google Google
Allan De Guzman profile picture
Allan De Guzman
10 November 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
CHRISTOPHER DOHRER is the best technician.he do amazing jobs👏🏻👏🏻
Posted on Google Google
Jerry Hubner profile picture
Jerry Hubner
10 November 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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
Posted on Google Google
Danielle Benz profile picture
Danielle Benz
9 November 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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!
Posted on Google Google
william biagi profile picture
william biagi
9 November 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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
Posted on Google Google
Patricia Stockton profile picture
Patricia Stockton
7 November 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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.
Posted on Google Google
Richard Hartnett profile picture
Richard Hartnett
6 November 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Miguel did a great job! Very pleasant to talk to and very efficient. Also very knowledgeable about water heaters and installation.
Posted on Google Google
jeff carey profile picture
jeff carey
6 November 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Jacob was our service technician. He was very professional and resolved the problem we had with our hot water heater.
Posted on Google Google
Jessie Lopez profile picture
Jessie Lopez
6 November 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very friendly and knowledgeable
Posted on Google Google
Tom Thomas profile picture
Tom Thomas
2 November 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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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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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