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Water Heater Warehouse

4.8 (887 reviews)
Open • 7:00 am - 6:00 pm

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10 minutes

Response rate

100%

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Rinnai 11.2 gas tankless water heater installed to replace old water tank heater
Amy K.

Went through SoCalGas to purchase a new tankless water heater & added installation. We were happy that Water Heater Warehouse (WHW) contacted us ASAP to schedule the install but they couldn't install until 6 days out: Two days before, we panicked thinking we might need a permit. Called to ask if we needed a permit for the new tankless water heater & spoke to Joey & he sounded unsure & said we don't need a permit because our install wouldn't have been scheduled if we needed one. Didn't give me the warm fuzzies so I googled & per our city's website, Yes, a permit & inspection are needed. We called the city & they were super helpful & reassured us that we can have the tankless water heater installed first & schedule the inspection later. So we called back & told Joey that yes, we need to get a permit & if they will be submitting the permit with their contractor number. He said yes. Hopefully he knows to check first instead of guessing & give customers the wrong info. We were happy with the removal of the old gas water heater & install of the new gas tankless water heater by Chris & his apprentice. Both super nice. After the install, the tankless water heater took forever for the hot water to come on for showers upstairs, even when I turn on the recirculator on the app. So annoying & feel like we're wasting so much water. We agreed for Chris to have it set to smart schedule where it will monitor our hot water usage for a week to develop a good schedule. 5 days later, we smell gas by the newly installed tankless water heater. Called WHW & Joey said to call the gas company. Gas company came out 4 hrs later & confirm that there indeed gas leak & he had to shut down the gas & tankless water heater. And told us to call the installer to come fix the leak. Just called WHW but of course they are closed & left a message with customer service. We thought it would go smoothly as they have great reviews but at this point, we would NOT recommend this company. Not sure if it's a faulty unit or faulty install. I'll update my review when we find out. We didn't pick this company. It was through purchasing the tankless water heater from SoCalGas. It's been a week & I still feel like I'm wasting water just waiting for the hot water to come on.

Starting with the initial call and quote, this company was great. Fast response, with the best price and quickest turn around for install. Phenomenal service from Chris and his partner, who came out and replaced my old unit with new 50 gal. unit. They were prompt, professional and left the area very clean.

Tankless water heater installed by Water Heater Warehouse

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26 days ago

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1 month ago

Water Heater Warehouse did a very good job with installing a new hot water heater. They were on time and priced reasonable. I recommend.

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2 months ago

Chris replaced a 20+ year old tankless water heater for us. Excellent fast and friendly service. Highly recommend!

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9 months ago

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10 months ago

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4 months ago

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2 months ago

Great price for water heater. Saved $200-250 over Home Depot & Lowe's. Transaction took no more than 15 minutes for payment & loading .

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4 months ago

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9 months ago

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1 year ago

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3 months ago

wonderful experience from start to finish. The entire staff was professional, friendly and kind. Highly recommend this place.

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9 months ago

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Ask the Community - Water Heater Warehouse

How much for 40Gal natural gas water heater replacement cost?

Hello Ken! Please call our office and we would be happy to dispatch a technician out to your home… 

Do you sell water heaters or just do repair and install?

Both.

Don’t See Your Question? Ask Away!

Review Highlights - Water Heater Warehouse

“Our relatively old tank water heater stopped working suddenly, and we called to get an estimate on replacing it with a tankless.”

Mentioned in 25 reviews

Read more highlights

THE Water Heater Company - Water heater installation.

THE Water Heater Company

(364 reviews)

i prefer to wait a month or so til i write up my review of a business and Im as pleased today as…read morewhen we had our new water heater put in. We're glad we went with a company that specializes in water heaters; i highly recommend. Marc was incredibly knowledgeable and thorough helping us make our tailored choices. During the installation, he and Griffin were genuinely focused on "doing and leaving a job well done". Initially, Marc gave us a ballpark figure and, lo and behold, the final cost was less. Again we are very satisfied with our Water Heater Company experience. Thank you to all of the team. DAB

Mark is a great service technician. I found this company because I thought I had to do some annual…read moremaintenance on my tankless water heater. After going through DIY videos, I thought it would be best to have the water heater company to do so. Otherwise I will have taken apart my water heater and it would remain that way for a few weeks. I may or may not have another non-related project that has been taken apart and waiting for a few months... The system is about 2.5 years old. I have not done any maintenance on it. Mark provided recommendations based on my home and how it is set up. I didn't do all of the recommendations but the ones I did accept should increase the longevity of my water heater. I selected the company based on their reviews. Perhaps I could have shopped around some more but I'm happy with the work and the service. I will ask them back next year to do descaling service. And, Mark pointed out my front yard irrigation water was turned off. OMG. I was wondering why my plants were dying. Maybe I shouldn't do any more DIYs. That was from a previous project and apparently forgot to turn it back on. Thanks Mark!

Water Heater Doctor - Water Heater Doctor

Water Heater Doctor

(276 reviews)

My water heater stopped working. It would ignite, but there was no gas flame to actually heat the…read morewater. I called several companies, but none of them seemed interested in properly diagnosing the problem. They simply wanted to replace the entire water heater at a ridiculously high price or quoted me outrageous prices just to replace a part like over 2000. Then I contacted Sam to diagnose the issue. He was extremely knowledgeable and professional. He took the time to thoroughly inspect the water heater and carefully check all the possible causes instead of jumping straight to replacement. He eventually identified the problem and installed a new ignition combination control box for me at a very reasonable price. The water heater is now working properly again. I really appreciate Sam taking the time to actually diagnose and fix the problem instead of simply telling me to replace the entire water heater. It's refreshing to find someone who is knowledgeable, professional, honest, and reasonably priced. I would definitely recommend Sam to anyone who needs water heater repair.

We are thrilled with our experience with Water Heater Doctor. We have a 100 gallon water heater on…read moreour property and were quite nervous about possibly having to replace it. Sam quickly diagnosed and fixed the problem and saved us thousands. We really appreciate and honest and professional technician who really knows his craft. Thank you, Sam!

Water Heater Warehouse - waterheaterinstallrepair - Updated October 2026

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