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  • Verified reviews icon107
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Avatar for USA Water Heaters - Installation & Repair
USA Water Heaters - Installation & Repair
4.9(
100
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Fullerton, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Warranties offered

"Our tank water heater went out. Since it was 14 years old, we decided to get a new tankless water heater. USA Water Heaters was very responsive when we requested a quote. We received a couple other quotes, and they were pretty similar in price. We went with USA Water Heaters because they were the only company that told me about the rebates offered by the gas company. They provided all required documentation, without my even having to ask for it. The others were not even sure there were any rebates available. USA Water Heaters arrived on time, completed the job in the time they promised, and did a great job of cleaning up when the job was complete. They were very professional. I would definitely use USA Water Heaters again definitely would recommend them to anyone that needs a new water heater."
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 by94%of homeowners
Avatar for Water Heaters Only, Inc.
Water Heaters Only, Inc.
4.7(
445
)
Water Heater - Install or Replace

Serving Fullerton, CA and surrounding areas

Approved (Corporate)

In business since 1968

Free estimates

Small jobs welcome

Water Heaters Only, Inc. was founded in 1968, to serve the needs of customers that specifically required service, repair and replacement of water heaters. Our founder had the foresight to develop this company into a distinguished service success with the longevity of over 58 years in the hot water heater business.\n\nOur Mission: To be quick, honest, reliable and fair to all that we serve in the water heater repair and installation business. To focus ourselves on quality and integrity for each and every customer experience, and to give back in non-profit support to the local and global communities in which we serve.

My jobs
My jobs
My jobs
My jobs
3 neighbors recently requested a quote
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 Fullerton, 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 Payless Water Heaters & Plumbing
Payless Water Heaters & Plumbing
4.2(
131
)
Tankless Water Heater - InstallSolar Water Heater System - InstallTankless Water Heater - Install - For Business+6 more

Serving Fullerton, CA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Did a $59 consult only. Turned out the cost of repairing the old heater was almost as much as a new one, so we got a new one, and handled the install ourselves. Luis B was great, knowledgeable, friendly, didn't try to upcharge just to sell a heater, which we appreciated. Gave us an honest evaluation, several options, and was right on time. I will say, though, that the company failed to call me when he was on his way... not a big deal. All in all a good experience."
New Tankless Water Heater Installation
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

Response time8 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
171
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Fullerton, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Found me the right size water heater, a few days before Thanksgiving and had it installed within 2 hours. Clean and efficient and Bradford White gas water heaters are American made. Built to last. Daniel Westereng did a great job with the install. Clean, fast, thorough and polite."
Ruben installs a new drainage system under a customers home. Working in a crawl space is rough, but we do what is needed.
Backing up? Got roots? Blast those roots out with a Hydro Jetter! We use a wart hog nozzle that combines controlled rotation with a unique 8 jet cutting configuration optimized for removing roots. It’s better with a jetter! Call us! We got this! ??
Sewer Line Camera
No drain clog too big or small, Western Rooter covers them all!
Justin clearing a Kitchen sink back-up after the Memorial holiday.
HALO 5 whole house water filtration system.

+542

Response time12 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for Cal-Tech Plumbing & Drains, Inc.
Cal-Tech Plumbing & Drains, Inc.
4.9(
39
)
Tankless Water Heater - InstallWater Heater - Install or ReplaceWater Heater - Repair or Service

Serving Fullerton, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I called Ca-Tech on a Saturday morning to check my water heater, and I was impressed that they were able to come later that morning. Albert arrived when he said he would and was very personable and very professional. He gave me a quote for a repair and also to replace my water heater. I choose to replace the water heater. When Albert returned later that week, he came on time and was very professional with the way he did the work. I liked that he kept me informed. I will definitely call Cal-Tech Pluming again."
cast iron
cast iron
main drain
clean out
clean out repair

+8

Response time12 hrs
12 neighbors recently requested a quote
Recommended by100%of homeowners
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Showing 1-10 of 394
Water Heaters questions, answered by experts

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.

While a water heater explosion is rare, it is a serious danger. Be aware of these critical warning signs:

  • Sulfur or Rotten Egg Smell: This is a major red flag, especially for gas water heaters. It can indicate a gas leak, which could ignite and cause an explosion.

  • Leaking Pressure Valve: If the temperature and pressure (T&P) relief valve is leaking, it may not be able to properly regulate internal pressure, creating a risk of bursting.

  • Shaking or Rumbling: Loud rumbling or shaking from the tank can be a sign of extreme pressure buildup.

  • Excessive Heat: If the exterior of the water heater feels unusually hot to the touch, the unit may be overheating dangerously.

  • Rust-Colored Water: This can be a symptom of severe internal corrosion that compromises the tank's integrity.

If you notice any of these signs, especially a gas smell, you must act immediately. Shut off the gas supply to the water heater and call a professional plumber right away to prevent a potential disaster.

A tankless water heater with a flow rate of 10 GPM should replace a conventional 50-gallon water heater. To avoid a surprise cold shower or two and to keep your energy costs in check, it's important to replace a conventional tanked water heater with the equivalent tankless water heater. Your household size and the number of hot-water-using devices you use at once can help you determine the best-size tankless water heater.

Newer models are packed with newer technologies that decrease energy consumption and increase output, giving you more bang for your buck in more bills than one. 

If you’re trying to decide whether you want to repair or replace your new heater, consider factors like your utility bills, repair costs, and even your carbon footprint to help you decide whether it makes sense to buy a new one instead.

Unless you have previous plumbing experience or extensive experience with water heaters, you should avoid replacing your electric water heater yourself. This process involves disconnecting wiring and parts from the old water heater and reinstalling them onto the new one, among other difficult tasks. This job is best left to the pros to make sure that everything is connected correctly to avoid serious leaks or malfunctions.

The Fullerton, CA homeowners’ guide to water heater services

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