Water Heater Installation

No Hot Water? No Problem.

     EXCELLENT  
  1742 reviews

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

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Water Heater Installation in California

Tank & Tankless Water Heater Solutions from Plumbing Pros

Looking to replace or upgrade your water heater? Whether you need a traditional tank or a high-efficiency tankless system, CastleWorks Water Heaters offers professional water heater installation backed by decades of local plumbing experience. Our team helps homeowners throughout California choose the right water heater type, size, and fuel source—without upsells or surprises.

What Type of Water Heater Is Best for Your Home?

Choosing the right water heater depends on your household size, energy preferences, and long-term efficiency goals. Here’s a quick breakdown of your options:

Traditional Tank Water Heaters

These systems store hot water in a large tank—typically ranging from 20 to 80 gallons. They’re easier and less expensive to install, making them a great choice for many families.

Learn more about tank water heater repairs →

Tankless Water Heaters

Also known as on-demand systems, these heat water only as you need it. They cost more upfront but save energy and lower monthly utility bills.

Thinking about going tankless? Read our guide →

Choosing Between Gas & Electric Water Heaters

Your home’s access to utilities and your energy rates will determine which fuel source is best:

Gas water heaters tend to cost more initially but offer lower monthly operating costs—ideal for homes already equipped with gas lines.
Electric water heaters are usually more affordable upfront and may be a smart choice where gas isn’t available or cost-effective.

Need help deciding? Our experts will walk you through both options during your in-home consultation.

How Big Should Your Water Heater Be?

Tank-style heaters are available in a variety of sizes. The most common is 40 gallons, which suits an average household—but larger families may require 50+ gallons.

The size of your tank affects both installation cost and energy usage. Our licensed plumbers will assess your water usage habits and help you size your unit correctly, so you’re not overpaying for capacity you don’t need—or running out of hot water too soon.

Why Homeowners Choose CastleWorks

Transparent pricing before work begins
Fast, expert installations from licensed plumbers
Full compliance with California plumbing codes
Guidance on rebates and energy-saving upgrades

Your new water heater will be installed with care—and you’ll know exactly what to expect from start to finish.

To keep your system running efficiently and avoid unexpected breakdowns, take advantage of our maintenance services for both tank and tankless water heaters—it’s the best way to ensure hot water year-round.

Request a Water Heater Installation Quote

Ready for a hassle-free installation with upfront pricing and expert guidance? Trust CastleWorks to recommend the best-fit system for your home’s needs and budget. Call us today or fill out the contact form below!

      
 Excellent4.71742 reviews
 4.7
 Excellent1742 reviews
  Write a review 
 
 
 
   
 
 
      Posted on Google  
   
   Tara Roberts 
 9 November 2026
 
 
 Trustindex verifies that the original source of the review is Google. Justin and David were kind and efficient!!!
  
 
     Posted on Google  
   
   Laura Block 
 7 November 2026
 
 
 Trustindex verifies that the original source of the review is Google. Justin and David were amazing.  They completed the work to replace our water heater promptly and were professional.
  
 
     Posted on Google  
   
   Ken Zamora 
 28 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Timely, knowledgeable and professional.
  
 
     Posted on Google  
   
   jackee rico 
 26 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Christopher Beauvoir was our technician. He was very knowledgeable and professional.
  
 
     Posted on Google  
   
   Sunya Felburg 
 21 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Christopher Beauvoir did an outstanding job.
  
 
     Posted on Google  
   
   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.
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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: