1. MCS Water Technology

    1. MCS Water Technology

    0

    San Gabriel, CA

    MCS Water Technology

    4.4 (149 reviews)
    Open 9:00 am - 5:00 pm

    Get pricing

    Response time

    40 minutes

    Response rate

    100%

    Services - MCS Water Technology

    Water purification system cleaning and maintenance

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    Reviews With Photos

    TomTom M.

    Andy, the technician that came to our house today to change the water filter. He is super nice and informative on the pricing and service. He is very honest and we appreciate that. Highly recommended. Thank you so much!!

    Professionally installed
    Daryl N.

    The engineers were reasonably prompt and very concise with the water softener replacement options and considerations. They handled much of the disposal and installation, as well as the preparations for the replacement. They got to work right away on the day of the job. The price is what you would expect for a full replacement of the water softener and salt container, but we were shown the features to back it, such as better filtration and easier maintenance. The project was fairly painless. We look forward to working with them in the future.

    Thank you, MCS water technologies
    Oscar B.

    The technician was outstanding willing to get the job done, clean, correct and efficient and the products are very good. We've used them for years.

    Jocelyn Y.

    I had water filter system installed by MCS Water before so immediately contacted them when I need a water softener system. Michelle, the sales representative, was knowledgeable and patiently explained and answered my questions and concerns. The technician who came to do measurements gave me valuable advice on how the pipes should be installed and explained the details. There are two technicians who came on the day of installation and they did a diligent job on drilling holes and connecting the pipes to make sure everything worked. This is totally worth the value. My neighbor saw their work and wanted to install one as well.

    New water softener system

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    28 days ago

    Andy has come and installed the filter for us and he did great job. We're totally happy the work he's done, thank you Andy

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    1 month ago

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    3 months ago

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    29 days ago

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    2 months ago

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    8 days ago

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    10 days ago

    Nice and good knowledge technician. Very helpful and come on time efficient in his work.

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    2 months ago

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    1 month ago

    Andy is very professional, he explained very well too. I'm very happy for his work. Kayla Kayla.

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    10 days ago

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    2 months ago

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    10 months ago

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    2 months ago

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    2 months ago

    Andy doing very good job at my house. I will share this company with my friends and family.I highly recommend this company to everyone!

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    8 months ago

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    23 days ago

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    2 months ago

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    2 months ago

    Andy came out to replace and fix leak, did a great job. Showed up on time and worked efficiently.

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    6 months ago

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    8 months ago

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    1 year ago

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    2 months ago

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    1 month ago

    Andy provides very good, professional service. This company are professional water filter and service.

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    3 months ago

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    7 months ago

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    2 months ago

    Andy 's service is awesome and professional, very good I really recommend this corporate

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    2 months ago

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    2 months ago

    I searched for water filter service online and called them, they gave me a very good price, the technician Andy is nice and professional.

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    2 months ago

    We had our water filter changed in San Gabriel. The service was great. The technician is very helpful. Satisfied with his services.

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    10 months ago

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    2 months ago

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    2 months ago

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    2 months ago

    Andy is the best technician I have met, nice and professional, keep my kitchen very clean after job complete.

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    4 months ago

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    9 months ago

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    2 months ago

    Andy was very helpful and helped install everything and made all the necessary changes for my water filters. Highly recommend

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    Page 1 of 4

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    Review Highlights - MCS Water Technology

    I highly recommend MCS Water, Michelle, and Master Wong to anyone considering a water softener or RO system.

    Mentioned in 27 reviews

    Read more highlights

    LifeSource Water Systems

    LifeSource Water Systems

    (974 reviews)

    I had my LifeSource water system for over 12 years (I now live in a condo so couldn't bring with me…read moresadly) and absolutely loved it - the no filter changes, truly set-it-and-forget-it convenience was amazing! My parents recently purchased the Elite ScaleSolver PowerPac and absolutely love it. They've noticed significantly less buildup on their fixtures and appliances, and the water tastes amazing from every tap. My mom especially loves not having to go downstairs in the middle of the night if she forgets her water...she can simply drink straight from the tap! Best in class, and I love the peace of mind that it's NSF/IAPMO certified from top to bottom. Highly recommend!

    We live in Oxnard and have very very hard water. Before installing Lifesource, I had to wrap bags…read morewith vinegar and water in them around the and parts frequently to remove scale. I also had to take apart the faucets and get the gunk off the screens. I would say I had to do every couple of months now after years of Lifesource once a year and it's not nearly as bad as it ever was before. Service calls are wonderful people show up on time know what they're doing fix what they're there to fix and are incredibly friendly. The infrequent need to change the canisters is a real plus. While, you do have to plan for those expenses, they are long lasting. over time it was less that our collective monthly expenses, especially if the maintenance by hand that was required was considered. When we were evaluating the system. It sounded expensive until I did the math on what we were paying for soft water which my husband dislikes the feel of. The difference is immediately recognizable in showers for hair and skin is something far better than I was .expecting. The water coming out of the tap is great! We do have a reverse osmosis for ice. The grey water every two weeks is used for the lawn and outside plants, so no waste and no big delivery trucks on the street on a regular basis. Jonathan our rep is always available and we are very happy with Lifesource!

    Pro Water Solutions

    Pro Water Solutions

    (116 reviews)

    So after 5 years with Culligan, we switched to Pro Water's state of the art system to clean up the…read morewater coming into our home. We also got the reverse osmoses system under the kitchen sink to further clean the water. This was such an easy and smooth process. We put in the order with Brad, scheduled an appointment for installation and our installer was Maurice. These guys know what they are doing and they made it very easy for us. The set the expectations and we didn't have to do anything. It took us about a couple hours where we couldn't use the water but then all we had to do is flush out the air from the new system. It's the third day now and everything is working great. WHY WE CHANGED: Just got tired of increasing monthly rates and having to open the garage for the techs to switch out the tanks. Also the Pro Water system does filter out more than the water softener we had.

    I ended up choosing Pro Water Solutions for a whole-house water softener system and reverse…read moreosmosis, and I couldn't be happier with the experience. From the very first phone call, Brad was responsive and promptly returned my call. When he came out to assess my home and provide an estimate, he took the time to thoroughly educate me on my water quality and the available solutions. I left that visit feeling much more informed and confident in my decision-making. After comparing a couple of other quotes, I decided to go with Pro Water Solutions--and I'm glad I did. Brad's knowledge really stood out. He tested my water, along with the bottled and filtered water we had been using, and the results were honestly shocking. Installation was scheduled and completed in less than a week after I gave the go-ahead. Daniel, the installer, was excellent--professional, detail-oriented, and made sure everything fit perfectly. He also walked me through the entire system and made sure I understood how to use it. Overall, a smooth, professional experience from start to finish. Highly recommend.

    Professional Pure Water System - The installation of the water system.

    Professional Pure Water System

    (26 reviews)

    I have been using their water purification and filtration for a long time. Every time they call me…read moreto say that the filter needs to be replaced, I am very active in replacing it. The workers came to the door and said that some machines needed to be replaced, and I was also very active in replacing them immediately. But recently, I called on June 30th and said that the filter needed to be updated, and I immediately agreed to replace it. They came to change the filter on July 1st the next day. After replacing the filter, the worker said that if there was a problem, I would contact them. I said yes. But last night, on August 6th, I found that the bottom of the pool was leaking and the water flowed out of the cabinet. When I checked, I found that a tube of the filter was slowly dripping out little by little. I contacted them and sent them video messages, but they didn't reply to messages and calls. I called them again the next day, and a Chinese woman answered the phone. She said that there was a fee for door-to-door maintenance. I said that it was because your workers did not install it after changing the filter water, and the water was a little flow. If it didn't flow outside, it would not be found. She said it's been a month, because it didn't happen before, and they didn't tell me that there was a deadline. This Chinese woman's attitude is very unfriendly, saying that the machine is old and needs to be replaced with a new one. But the worker didn't say that he needed to replace it. Every time I replaced the filter, the worker would tell me that some of them needed to be replaced, but he didn't say it this time. Now if there is a problem, I will replace it with a new one. And this is because the workers didn't install it well when replacing the filter, so it started to drip. Then she told me that she was driving and it was inconvenient to talk. It's inconvenient to answer the phone. Why didn't you say it at the beginning? I'm waiting for their follow-up now. I'll update...

    Been wanting a water softner and RO system and been shopping around. Got rhe best quote from…read moreprofession pure water and went ahead with the installation. They came early took their time and were super professional throughout the installation. They took the time to explain everything to me. Really appreciate it. Thank you!

    Pure Water Filtration

    Pure Water Filtration

    (30 reviews)

    Imagine being able to drink water straight from the tap, with no more hard water stains, less itchy…read moreskin, softer hair, better tasting coffee, and appliances that last longer. That is what we got with carbon filtration and water softening. If you live in Southern California, you know what I am talking about. I really wish we'd installed it years ago. If you own your home, investing in a good system can improve resale value. After a lot of research and discussions with several service providers, we went with Pure Water Filtration. Brandon came to the house and designed a system that would work with our plumbing situation. Unlike others who came by, he recognized a potential issue and offered a reasonable solution. He did not try to upsell us (again, unlike others). They use Clack Systems, so there is no lock-in to a particular system. Maintenance is minimal (add "salt" every so often). Brandon and his assistant showed up for installation as planned. With minimal fuss, the unit was installed within a couple of hours. We went about 90 minutes without water. Once the unit started functioning, the difference was immediately noticeable. Service, price, and performance are why you should choose Pure Water Filtration. We could not be happier.

    I must say that if I ever have any more soft water system problems that I will call pure water,…read morefiltration, and specifically ask for Brandon for my needs! I recently had a situation where the salt was not going down in my brine tank and the water didn't feel soft in the shower any longer. Brandon asked me for a couple pictures and description of the situation and then instead of charging me $150 fee to come out and fix it (which many might do)... He verbalized to me over text what amounted to a five minute fix. Just don't find people in this world today who are that kind anymore and I greatly appreciate Brandon and Pure Water Filtration for their kindness. There is no need for me to get competing offers anymore from Yelp... Pure Water Filtration is my one stop shop for my soft water system needs Do you won me over thank you!!!

    Drinking Water Los Angeles - Matching faucet in Marble countertop

    Drinking Water Los Angeles

    (162 reviews)

    Sherman Oaks

    Richard and Greg from The Drinking Water Los Angeles are absolute lifesavers! We recently bought a…read morehouse that came with an ancient, neglected GE reverse osmosis system. The filters hadn't been changed since 2021, and the tank had completely lost pressure. I immediately changed the old filter, but the system was still not working well and the whole setup was just on its last legs. Richard and Greg came out and immediately offered to swap the tank just to see if it would salvage the old unit. When we realized the GE system wasn't worth sinking money into, we decided to upgrade and had Richard install one of his own systems. The installation was unbelievably fast, clean, and seamless. Beyond the quick service, not only are Richard and Greg incredibly knowledgeable, but they are also super nice and funny. We had a lot of laughs while learning more about drinking water and getting thoroughly educated on the new unit. We even opted to add an alkaline filter, and the difference is night and day. Now we have incredible, crisp-tasting water running straight to both our sink and our fridge, and we love it. Their pricing was exceptionally fair. I honestly expected the whole ordeal to cost a fortune, but it was completely reasonable. We couldn't be happier with the results, and we will definitely have them come back out for all of our future reverse osmosis needs. Highly, highly recommend!

    DWLA does exceptional work at extremely favorable pricing. I went with another company - the outfit…read morethat originally installed the system - and I was shocked to learn how much more their annual maintenance cost compared to DWLA. Rich and Greg are totally customer-focused, responding rapidly to all questions and requests. When we had a minor performance issue, Rich was back the next morning to make it right. There really is no good reason to go elsewhere!

    MCS Water Technology - waterpurification - Updated September 2026

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