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    Services - At House

    Water purification system cleaning and maintenance

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    James A.

    Water softener and filter. Prompt response, friendly, professional. Great price. Would highly recommend! Got the hybrid, water feels great! Clean as pipe job for my no knowledge eyes!

    Before

    Imagine you have a problem and there's people who can solve it for you, and do it right the first time. I called them on a Friday and it was installed on Tuesday. My old gas water tank heater ( GE ) was 22 years old, not yet broken but it was time to say goodbye. I bought the gas tankless Rinnai from Home Depot. Rinnai is a Japanese brand, and At House is a Japanese-American contractor Initial in-home visit with At House was very efficient with run down of items needed to be addressed. Contractor ( Hiro, my hero ) very responsive and pro active in accommodating to my concerns: install location, gas pressure. Lucky, I didn't need to do ( 1/2" to 3/4" pipe for Rinnai ) gas line modifications. Cost estimate was accurate and very reasonable. Very quick to schedule appointment and job done very neatly, methodically, promptly and professionally. This is not their first rodeo. ( Thank you " M, " You're the Best ! , the mirror said ) The end result is a masterpiece of " art, " with all the piping beautifully lined up. Not sure if anyone can put a monetary value on happiness. I was thrilled with the installation. I had been dreaming of this Rinnai ( RXP 199iN ) for the past decade and finally dream came true. Hot water came on fast. Machine is in a closet so not much noise when it runs. At House has the Big-city experience and know-how with kindness / honesty of small town feel that really puts my mind at ease. Am a very Happy and thankful that I found them on Rinnai's website as an ACE Pro Rinnai certified contractor, and reading Yelp reviews like what you are doing right now.

    Steve R.

    These guys are ROCKSTARS! Every interaction, from the initial contact with the owner (Hiro), to the techs that came out to my house, this business operated like a WELL-OILED MACHINE! With WORLD CLASS service experience and friendly techs who treated the installation job like they were working on their own house. I'm super happy. Clean install job, cleaned up after their job and best of all their pricing is super competitive. ALL the right reasons to HIRE "AT HOUSE". They took care of my warranty registration and gave me guidance on proper maintenance

    tankless water heater

    We Just replaced our old water heater with a tankless Rinnai and we love it. Hiro was very easy to communicate with, transparent with pricing and service. Great value, competitive price, amazing service and product. Highly recommend this business

    Sheldon K.

    I had my water softener installed by Hiro and his crew previously. Sunday my Noritz tankless water heater went on the blink and stopped working. I called "At House " and spoke with Hiro since he installed my water softener previously. The unit wasn't in stock , however, Hiro committed to have the unit and installed Tuesday. As promised Hiro's assistant arrived on time and started the installation. Both Hiro and his assistant were professional , friendly and patient when I asked questions . The Rennai tankless water heater is working perfectly and the water is even hotter than the previous unit. Hiro replaced all of the hardware fittings and lines to the new unit. When they were finished they thoroughly cleaned up the area and took the old unit with them . I highly recommend "At House" if you need a tankless water heater or water softener installed. Great job guys! Thank you !

    NORITZ EZ SERIES
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    2 years ago

    Been using them for years to service my tankless water heater. Always great service and reasonable. Highly recommend.

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    Page 1 of 4

    Ask the Community - At House

    Hi, I have a Noritz Tankless Hot Water Heater. Lately, in the last 6-9 mos. and its been getting worse, when I turn on the hot water, it doesn't ignite to heat the water. When I unplug and plug back in, it seems to start working. Can you repair?

    Thank you very much for your contact. May I have Noritz model name ? And if you have thermostat controller with Noritz, is there any error code on the display? Anyway we… 

    Hiro, do you serve northern california or have any partners in the SF Bay area?

    Hi Sorry… we do not have any service channel in N Cal now…

    Hi Hiro. You installed tankless water heater 1yr ago, which needs Dscaling. Also we have a rhino aquasauna system for a fw yrs. We already bought the replacement tank for one side and we were wondering it you put it in?…

    Hi Yes we can set up schedule for Annual maintenance services. Also we may replace the tank as well. Pls let Hannon’s when you want to set up schedule.… 

    Don’t See Your Question? Ask Away!

    Review Highlights - At House

    Kevin with At House came out to our home in April of this year and solved our nightmare hot water issue.

    Mentioned in 15 reviews

    Read more highlights

    Diamond Pure Water Filtration

    Diamond Pure Water Filtration

    4.9
    (453 reviews)

    Was researching for months to find the best and most cost efficient soft water system. My coworker…read moretold me about this place so I called to request a quote. The lady that answered said she would forward my info to an Oscar. Oscar called me about an hour later and went over the entire system and the cost. His price was about $500-$1000 cheaper than local competitors. With good pricing and probably the best yelp reviews I decided to go with him. Installation was about a week later. The installer came around 11am and took about 8 hours to install the entire system. His install time too longer than originally quoted but I'm glad he took his time and didn't miss any steps. When it was all done he educated me on the entire system. It's pretty much a set it and forget it system except for maintaining certain salt levels. Within days I felt the difference in my skin. It wasn't as dry as before and the water really did feel soft. Highly recommend them!!

    The water quality has significantly worsened in just over half a year. When I contacted this place…read moreabout the issue, they only performed a basic water softener test and then advised me to take my water somewhere else for a proper water quality test. Water seems soft but it doeant seem to remove any other toxic elements no more or does less This was especially disappointing because they advertise that these tanks should last 5 to 10 years. Based on my experience, the performance declined much sooner than expected, and I did not feel like the issue was taken seriously or properly evaluated.

    Crystal Clear Water

    Crystal Clear Water

    4.9
    (442 reviews)

    I'm extremely satisfied with the service Anthony is an…read moreexcellent technician, very friendly and very helpful. I've been with Crystal Clear water for around 10 years and I haven't had any issues

    Last week or so, my water pressure started to go down throughout my house and eventually stopped. I…read morecalled Crystal Clear Water and they sent out their team to diagnose the issue which was coming from the water softener filtration system. The water system I got 3 years ago from them had warranty so they stated they would come out and replace everything & add a resin filter. Once they came, they started to clean out all the faucets/shower heads since these little resin beads were stuck inside, cleaned the toilet tanks, checked my washing machine/ fridge water lines and even offered to assist changing out all the kitchen/bathroom valves (got the water valves via Home Depot myself). In addition, they flushed out my hot water tank as well. Now my house has 4 bathrooms, several sinks and faucets so a lot of this took some time but I never heard them complain and they went straight to work. They even replaced my drinking water filters. This company is A++ Now the water is back in my house and coming out even stronger. Thank you Tony, Andy and your team for all your hard work. Side note: I called a plumber before Crystal Clear Water and he said it was the PRV valve issue.. Changed the PRV valve and it wasn't even the problem so money was wasted there... so CALL CRYSTAL CLEAR WATER FIRST!!

    So Cal Water Systems

    So Cal Water Systems

    4.8
    (180 reviews)

    I shopped around for a while before I decided to go with So Cal Water Systems for my parents' home…read more Scott is extremely knowledgeable and actually knows his product not just a sales person who is pushing a product. Other companies sent sales people who obviously did not know what they were talking about when I test their knowledge by asking them questions I knew the answers too. I don't leave reviews often for things but in this case, the excellence of this company could not go without recognition. This is a locally owned company which is a huge plus for me because I love to support local business. Scott did the installation and my parents and I were mesmerized by how clean it was. We immediately noticed the change in the water and are very happy. It doesn't stop there. We are getting epoxy installed in the garage and Scott told me not to worry, they would come disconnect everything, put it to the side for the installation and then connect it back after. When I logged on here, I saw that there were some poor reviews which peaked my curiosity. I looked at them and I can honestly tell you that these people don't know the kind of system they have. They obviously did not listen because everything was explained meticulously. They are comparing this system to systems that are subpar. Also complaints about spending a few extra dollars for service and filters. If your health and well being is not important for you to spend a little extra money and you would rather spend that money on a 10 dollar Starbuck coffee filled with diabetes then you are a lost cause. I 100% recommend this company and I just recently bought a house of my own and will have them install one there as well.

    Just had Devin service our 19 year old system. He was very pleasant to work with, knowledgeable,…read morerespectful and quick. The pricing was very fair, we will definitely use So Cal water systems in the future.

    At House - waterheaterinstallrepair - Updated August 2026

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