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TRUSTED BY TUSTIN, 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 Tustin - 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 Tustin, 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 Tustin, CA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"The Water Heater company saved the day by promptly replacing the incredibly old water heater with new Tankless solution. Their team is very professional, and the pricing was extremely competitive. I would use them again for all my water heaters needs."
Van (Side view)
TWHC Vans
TWHC Vans
TWHC Vans
TWHC Vans

+83

Response time7 hrs
Response rate92%
Recommended by84%of homeowners
Avatar for Service Champions Plumbing, Heating & AC
Service Champions Plumbing, Heating & AC
4.4(
50
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Tustin, CA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Kayvan was a wonderful service tech! He was on time and professionally checked out the water heater and the HVAC system. He was so polite and friendly. He explained the need for a new filter in the heating unit and showed me photos of the unit located in the attic. He also offered to do a friendly deed for free, which I greatly appreciated, He’s a great asset to Service Champions!"
Area Drain Cleaning
Plumbing
Plumbing
Garbage Disposal
Drain Cleaning

+13

Response time4 hrs
Recommended by79%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 Tustin, 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%
9 neighbors recently requested a quote
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Water Heaters FAQs, answered by experts

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. 

We recommend you turn off the unit, the power, and the water supply as soon as you notice a leak. Your water heater tank should have a dedicated shut-off valve located on the cold inlet pipes. If the valve is broken or inoperable, use the shut-off valve to your home's main water supply to stop the flow to the entire house.

Avoid touching valves or pipes directly without confirming if they are hot. Wear gloves and other safety gear to keep from coming into contact with hot levers or components when turning off your leaking water heater.

A larger heater requires a larger breaker—unless there’s one already installed. The longer answer to this question is more nuanced. Do you place demands on the heater at the same time as running other heavy-duty appliances like ovens and washing machines? Do you live in an older home that may not have considered the higher electrical demands we have now? Breakers need to be sized at 125% of the load. To find that load, you should call a local electrical pro.

Electric water heaters use a high amount of electricity, so they’re best for homeowners who subsidize their electric bill with solar or who live in an area with inexpensive electricity. For others, gas water heaters versus electric water heaters may be the more cost-effective solution, with the added bonus of heating water quickly and efficiently. No matter which you choose, you can lower your water temperature as low as possible to keep costs down.

In most municipalities, a license is not mandatory for water heater installation or replacement. However, we strongly recommend hiring a licensed plumber or water heater installer to handle the work. Licensed installers are far less likely to make a mistake during the installation, which means paying for the experience decreases your risk of a leak and other issues. You can use our state licensing tool to find out if a contractor you’re considering in your area holds a plumber’s license.

The Tustin, CA homeowners’ guide to water heater services

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