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    Water Heater Warehouse

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

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    Response time

    10 minutes

    Response rate

    100%

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    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.

    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.

    Tankless water heater installed by Water Heater Warehouse

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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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    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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    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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    10 months ago

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    Page 1 of 23

    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

    (362 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

    My tankless water heater started leaking last night, and the manufacturer Noritz recommended their…read morecontracted plumbing company to me. The water heater company is able to schedule me for the earliest available appointment this morning, which I really appreciated. Daniel was absolutely wonderful--very friendly, professional, and knowledgeable. He quickly identified the problem and even helped contact Noritz to check whether my water heater was still under warranty. He clearly explained the available solutions and helped me choose the best option. He did an outstanding job and was patient taking the time to answer all of my questions. Later after, when my husband came back home, he explained everything thoroughly again to my husband. I truly appreciate his professionalism and excellent customer service throughout the entire process. I would definitely recommend the company to any of my friends or anyone who needs plumbing services.

    Water Heater Warehouse - waterheaterinstallrepair - Updated October 2026

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