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TRUSTED BY ORANGE COUNTY, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon98
    Verified water heater services reviews

Top-Rated Water heater pros in Orange County - Updated Nov 2026

Avatar for USA Water Heaters - Installation & Repair
USA Water Heaters - Installation & Repair
4.9(
102
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Orange County, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Warranties offered

"USA Water Heaters provided the best service for the best value. They replaced our 40gal water heater the same day and gave us the best price for full service and no hidden fees. They are the best in the business and would highly recommend them for any of your water heater needs!"
Navien Tankless Water Heater Installation in IrvIne, CA
Water heater installation and repair service in Mission Viejo, Ladera Ranch, Lake Forest, Las Flores, Rancho Santa Margarita, Trabuco Canyon, Coto De Caza, Foothill Ranch, Laguna Hills, Aliso Viejo, Laguna Niguel, Laguna Woods, Laguna Beach, Dana Point, San Juan Capistrano, San Clemente, Irvine, Tustin, Santa Ana, Orange, Villa Park, Anaheim, Anaheim Hills, Brea, Yorba Linda, Newport Coast, Newport Beach, Costa Mesa, Huntington Beach, Fountain Valley, Garden Grove, Westminister, Placentia, Full
AO Smith water heater installation Laguna Niguel, CA
Navien tankless water heater installation Irvine, CA
Same-day water heater installation and repair service in Orange County, CA

+32

Response time7 hrs
Response rate100%
Recommended by93%of homeowners
Avatar for THE Water Heater Company
THE Water Heater Company
4.9(
134
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Orange County, CA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"We had our water heater replaced by The Water Heater Company and the service was excellent from start to finish. The technician, Mike P., was professional, on time, and extremely knowledgeable. He explained everything clearly, completed the installation efficiently, and made sure the area was clean before leaving. My new water heater is working great. We really appreciate the quality of work and the attention to detail. We highly recommend The Water Heater Company especially if you want a smooth, stress-free water heater replacement done right the first time."
Van (Side view)
TWHC Vans
TWHC Vans
TWHC Vans
TWHC Vans

+83

Response time7 hrs
Response rate92%
Recommended by84%of homeowners
Avatar for Service All Stars Heating and Air Comfort
Service All Stars Heating and Air Comfort
4.4(
139
)
Water Heater - Repair or ServiceWater Heater - Install or ReplaceTankless Water Heater - Install+5 more

Serving Orange County, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Installed new Tank-less Water Heater and furnace and we finally added an air conditioner. The installers were, hard working, polite and make sure everything was cleaned up, when they completed their work. Very pleased with Services All Stars!"
Ductless Systems
Teamwork!
Delivery Truck
Job Done!
Another One!

+2

Response time1 day
Response rate98%
10 neighbors recently requested a quote
Avatar for Good Day Plumbing Service
Good Day Plumbing Service
5.0(
12
)
Water Heater - Install or Replace

Serving Orange County, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Good Day Plumbing has done multiple projects for us. They have installed a tankless water heater, a water softener, and also replaced a backflow. Good Day was competitive with their quotes and worked around our schedule. All of the work was done in a clean, professional manner and they even helped us out in understanding the operation and maintenance that would be required for the water heater and softener. We would not hesitate to call them out for our next project or unexpected repair. Itâ s good to have a company like this you can trust to do the work right the first time and treat you in an honest and fair manner."
water serive
water serive
water service
water service
water service repair

+4

Response time3 hrs
Recommended by100%of homeowners
Avatar for Orange Independent Plumbing Services
Orange Independent Plumbing Services
4.8(
321
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+1 more

Serving Orange County, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Emergency services offered

Credit card accepted

"My hot water heater began leaking on the Sunday of Memorial Day weekend - yikes! After requesting a quote via Angi, I received nearly instant communication from Ruben, who then sent me lots of information about what likely needed to be done and what it would cost. He was available same day, and he was able to replace my water heater neatly and efficiently. I am thoroughly satisfied and impressed. So happy he could help me on the holiday weekend. I'm very appreciative."
Response time3 hrs
Response rate85%
283 neighbors recently requested a quote
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Water Heaters FAQs, answered by experts

If you want instant hot water and to reduce water waste while improving convenience, a hot water recirculating system is worth it, especially if you find your hot water heater is not hot enough. These systems can save thousands of gallons of water each year so you don't have to wait for hot water at faucets and showers. The upfront investment can be high, especially for systems requiring additional plumbing, but the long-term savings on water bills and added comfort make them a worthwhile upgrade.

You can and should vent the gas from your hot water heater to the outside of your home. Traditionally, these gases were vented back to other gas appliances, like stoves or furnaces, but many jurisdictions have outlawed this practice due to the risks it provides. 

Most water heaters today use atmospheric venting that exhausts the gas out of the home through a pipe.

No, boilers and water heaters are not interchangeable because they serve different primary functions. Boilers are used for central heating systems, providing hot water or steam to heat your home. In contrast, a water heater's purpose is to supply hot water for daily household use, such as for faucets and showers. A water heater alone cannot supply the warm water or steam needed for a central heating system.

While they are not interchangeable, it is common to have both a boiler and a water heater. In fact, a conventional boiler often works best when a water heater system is already in place. The two systems can be combined to provide both heating and hot water, either by pairing a boiler with an indirect water heater or by installing a premade combination boiler-water heater unit. For home heating, some homeowners may also opt for a furnace instead of a boiler.

No, you’ll need to drain the tank before changing a water heater element, as the water heater element sticks through the side of the tank and uses a gasket to prevent water from pouring out. However, you don’t always need to drain it completely. If you’re only replacing the upper heating element, you can drain the tank until the water line is below the element. If you’re replacing the lower element, you’ll need to drain the whole thing.

Gas water heaters last between eight and 12 years on average. You can help them reach their maximum lifespan with regular cleanings, maintenance, and professional checkups, though don’t hesitate to swing for a full replacement if the total cost of repairs is greater than that of purchasing and installing a new unit. 

The Orange County, CA homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.