Tankless Water Heater Installation

No Hot Water? No Problem.

     EXCELLENT  
  1738 reviews

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

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Tankless Water Heater Installation in Orange County

Energy-Efficient, Space-Saving Hot Water Solutions

When it’s time to replace your hot water system, upgrading to a tankless water heater is one of the most energy-efficient decisions you can make. These systems provide hot water on demand, use less space, and can significantly reduce your monthly utility bills—making them ideal for homeowners throughout Orange County. Whether you’re looking for a tankless upgrade or a traditional system, CastleWorks offers honest guidance and expert installation.

Why Go Tankless?

Unlike traditional water heaters that store 30 to 80 gallons of pre-heated water, tankless models heat water only when needed. This on-demand technology results in less energy usage and eliminates the need for a bulky storage tank.

Other key benefits include:

Lower utility bills due to reduced standby heat loss
Compact size, making it easier to install in tight spaces
Longer lifespan, often lasting up to 20 years with proper maintenance
Endless hot water, perfect for large families or homes with multiple bathrooms

Gas vs. Electric Tankless Heaters

The best energy source for your home depends on your current utilities and usage needs. Gas tankless heaters typically deliver higher flow rates and are better suited for households with heavier hot water usage. Electric tankless heaters, on the other hand, are more compact and easier to install, making them a solid option for smaller homes or apartments.

Choosing the Right Size

Tankless systems are sized by flow rate, measured in gallons per minute (GPM). For example, a typical 2-bathroom home might need a 6–8 GPM unit. Choosing the wrong size can lead to inadequate hot water during peak times, so it’s important to consult a licensed plumber to match your system to your home’s needs.

At CastleWorks, our Orange County water heater experts conduct in-home evaluations to help you choose the right unit, fuel source, and installation location.

We Also Do Maintenance & Repairs

Once installed, your tankless system will require routine upkeep to stay efficient and reliable. CastleWorks also provides water heater maintenance and repair services, ensuring long-term performance and peace of mind.

Why Homeowners Choose CastleWorks

Licensed, local plumbing experts based in Yorba Linda
Fast, clean, and code-compliant installations
Trusted by hundreds of Orange County homeowners
Transparent pricing and satisfaction guarantees

Get the Right Water Heater—The First Time

CastleWorks proudly serves Yorba Linda and the surrounding Orange County communities with water heater expertise you can count on. Whether you’re upgrading to a tankless system or need help maintaining your existing setup, give us a call or schedule a consultation online to get the best solution for your home’s hot water needs.

      
 Excellent4.71738 reviews
 4.7
 Excellent1738 reviews
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   Ed Brown 
 14 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Quick and courteous response, plus my 10 year old service records from a company Castleworks acquired! Salvador, the technician, was personable, worked quickly, explained paperwork, options, and maintenance recommendations, and left no waste.
  
 
     Posted on Google  
   
   Vanja Srdic 
 8 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. We had an emergency water leak. Company responded quickly by sending one of their plumbers/technicians in an hour - Salvador Vidales was great, very knowledgeable, extremely professional and honest, I would strongly recommend his service. Thank you!
  
 
     Posted on Google  
   
   James Houng 
 7 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Chris B. Is the tech - he is professional and quick - clean and clear all parts and answer all questions - thank you!
  
 
     Posted on Google  
   
   Danielle Stahler 
 23 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. This is our second huge projects with Castleworks. Justin went above & beyond, not only making what could have been  a huge issue. He figured out the best way to do do with a very minimal amount of holes in walls. He did the work quickly & despite the very small holes needed to connect the pipes, he made it all look like a work of art. I highly recommend recommend the company for any plumbing needs & a special shout out to Justin
  
 
     Posted on Google  
   
   alice engelmann 
 22 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent technician, clean, professional and focused.
He provided customer education when all was done and answered all pre- work questions as well.
Represented your company well.
In
  
 
     Posted on Google  
   
   Bill Loper 
 20 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. I would rate my experience with Christopher Beauvoir's installation of a new water heater as a "5".   He was extremely professional and straight-forward about the entire process.  Explained teh issues with my old water heater, and installed the new one quickly and efficiently.  I would not hesitate to recommend Castle Works to my associates if and when they need that kind of service.  thanks again for solving my hot water issues!
  
 
     Posted on Google  
   
   Steve Ansay 
 18 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. Very good . On time as promised.
  
 
     Posted on Google  
   
   Todd Cetti 
 17 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. CastleWorks does excellent work.  Christopher Beauvoir showed up on time, was very knowledgeable, and did an excellent job replacing our old water heater in the garage.  They use Bradford White water heaters which are really good.  Very happy with the job, thank you!
  
 
     Posted on Google  
   
   Timothy Fives 
 13 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. CastleWorks’ technician, Christopher Beauvoir, showed up on time and quickly diagnosed the problem with the Grundfos circulation pump on our tankless water heater. He also discovered several faulty valves that had deteriorated over the years. Christopher replaced the failing pump and valves and was on his way in short order.
  
 
     Posted on Google  
   
   Ferdinand Galvez 
 10 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. Chris was very professional and kind. Hes very educated when it comes to his like of work! You should definitely do business with Chris Beauvoir!! 5/5 Stars easy!!

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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: