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    Custom Water Systems

    4.9 (56 reviews)
    Closed 6:00 am - 12:00 pm

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    Services - Custom Water Systems

    Water purification system cleaning and maintenance

    Water purification system installation

    Water purification system repair

    1 More Service

    Salt delivery

    Custom Water Systems Photos

    Recommended Reviews - Custom Water Systems

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    Reviews With Photos

    Water softener and water conditioner (they have more specialized names that I can't remember)
    Cary C.

    Although they are very busy and you may need to schedule out about 2 weeks+ before they can help install a system for you, it's worth the wait. I had our water softener system installed along with the water conditioner and a reverse osmosis drinking water system that has remineralization(important). The three brothers did an amazing job. A dominant competitor in SGV will use Puronics system which after some research, I would highly discourage. CWS uses Pentair/Fleck which are amongst top tier. Their pricing was actually lower then what the dominant competitor used for a higher quality system and work done!

    Water softener and conditioner system installed in our garage
    M L.

    We had our water softener and conditioner system installed by Phil and his team. Phil was very responsive, professional, and knowledgeable. He took his time to explain how the system works and answered all of our questions. He did not try to upswell us on anything and was very honest, which I appreciated. The team wore masks during COVID-19, and were very safe and professional. After having our system for 3 weeks now, I can see a complete difference in our water quality- from the drinking water filtered through our fridge, to our clothes, skin, and hair. I am loving it! I would recommend CWS, Phil and his team to everyone who asks!

    Water Softener/Conditioner
    C K.

    Phil and Mike installed a water softener/conditioner at my house this past weekend. They took their time to make sure everything was installed accurately, up to code, and cleaned up. Phil answered all of my questions with no hesitation and came back to ensure everything was in working order. Phil was extremely competitive and gave you the best price/performance deal that you can find. Phil and Mike are high caliber individuals, and I would recommend them over and over. The wife and I already notice a massive difference in our water. I wish we found Phil and Mike sooner.

    Clean, secure, and easy on the eyes.
    Sun-Ho P.

    Phil is THE MAN! I wish more businesses/vendors could be like these guys! As a first-time homeowner i knew i wanted a water softener for my newly renovated home but was frustrated and lost in my search for an installer - especially since I needed one installed on the exterior of my home. I called plumbers, handymen, and "Big Softener" companies like Culligan. But they were all so expensive (marked up) or untrustworthy in their practices. I was at the end of my rope until i found CWS on Yelp. Enter Phil: friendly, informative, no BS, straight-to-the-point, and TRANSPARENT. From the get-go he was extremely upfront about the equipment, prices, and what to expect on the low to high end - and never tried to unnecessarily upsell me. One good byproduct of my endless search before CWS was that I gained a lot of knowledge about equipment and the "softener biz" and it was clear that Phil's quotes were extremely fair and reasonable. I was pleasantly surprised by the fact that his prices were not much more than just buying the equipment on my own (except with CWS I get a professional installation). Installation day was smooth as softened water - Phil's crew was friendly, quick, organized, and always communicative. One last thing: these guys are young and knowledgeable. I mention that because they are not like the "salty" old boomers who see uninformed customers as easy targets. The CWS guys have a "disrupter" vibe (like in the tech industry) who will hopefully take Big Softener down! Forget Culligan, Lifesource, etc. who all try to "hook" you with constant maintenance calls. CWS is who you're looking for if you want savvy, easy to talk to, fair prices, and high quality!

    Henry N.

    I had both water softner and water filtration system installed by Phil about 2 months ago. I waited until now to make sure everything is in working order before I write up. I was really impressed with his workmanship and professionalism. He took time to complete the job, clean up after done. One time I saw too much water in brine tank. I texted him and within 30min he showed at my door to check it out. It turned out there was nothing wrong. I highly recommend him if you ever want to put a new system in your house.

    New faucet that matches perfectly to our sink.
    Eric O.

    Phil and Mike were very helpful. The install was done very professionally and we are happy to use our new alkaline water system. Great family owned business and we would highly recommend them if living in the area.

    Water softener and conditioner
    Kevin T.

    Phil and team did a great job at setting up our whole house water system along with purified alkaline drinking water. Very knowledgeable staff and very time efficient with their work. Phil will take the time if needed to help you understand what it is that you're getting so don't be shy to ask question as it is an investment for yourself.

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    Phil K.

    Thank You For your Review!

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    Phil K.

    Thank you! for your business And awesome Review.

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    Page 1 of 2

    Ask the Community - Custom Water Systems

    How much do you charge to install a whole house water softener?

    Hello. for installation it really depends on the Whole Plumbing situation, for example it could be $500-$3000

    How much do you charge to install reverse osmosis under my sink?

    Hello, system and installation normally runs $550

    View All 4 Questions

    Review Highlights - Custom Water Systems

    Phil and his brother did an excellent job on installing a whole home water softener and RO system in our house.

    Mentioned in 47 reviews

    Read more highlights

    Diamond Pure Water Filtration

    Diamond Pure Water Filtration

    4.9
    (445 reviews)

    I begin searching for the home best water filter companies because several homes in our neighbor…read morebegan having pin-hole copper tubing leaks - with the accompanying water damage & expenses to completely fix the pipe & patch up the holes made while locating the leak. One of the companies I called was Diamond Pure Water and I spoke with Mike. He mentioned that chloramine is the corrosive chemical in municipal water that eats through thin copper pipes (type-M) & that a catalytic carbon filter system would remove all chloramines. I also called a number of other companies & it was clear they weren't interested in spending the time texting & on the phone with me that Mike did. He set me up with a great dual catalytic carbon filter (to completely remove chloramines) & a soft water filter ( to treat hard water & remove calcium & magnesium). The system looks good & fits perfectly in a corner of our garage. Diamond Pure Water was also the lowest estimate of the 3 that I got.

    This was honestly one of the easiest and best purchases I've made. From the beginning, Mike was…read moreextremely helpful and professional. He took the time to explain everything clearly, gave me all the information I needed, and answered every question I had without making the process feel rushed or pressured. I spent a good amount of time researching different water softener systems because I wanted to make sure I was getting the best system for my money. After comparing several options, I decided to go with Diamond Pure, and I'm really glad I did. The installation process was smooth, quick, and very professional. The technician showed up on time, worked efficiently, and made sure everything was installed correctly. He also walked me through how the system works and answered all my questions so I would know what to do if anything ever came up. What I really like is how simple and easy the system is to understand and maintain. Overall, the entire experience from getting information, to purchasing, to installation was excellent. I highly recommend Diamond Pure to anyone looking for a reliable water softener system and great customer service.

    West Coast Water Filtration

    West Coast Water Filtration

    4.8
    (857 reviews)

    I'm very impressed with West Coast Water Filtration. They were quick to respond to my inquiry and…read morethen were willing to come by on a holiday to review our job. I had done some research ahead of time and knew basically what I needed. Chuck came by and didn't try to sell us anything more than we needed. He was quick with testing the water, reviewing the space, and providing a quote. The quote was competitive and he answered all my questions with everything I was looking to understand. During the install day, the team showed a bit late but still made it. They got to work and did a very clean job. No mess and everything is neatly installed. All piping works for my space and doesn't require me to sacrifice my garage. The crew was professional and even made a wiring change when I requested. I couldn't believe they managed to get the equipment in the small space beside my existing shelves. I previously had an under the skin RO but decided to upgrade since mine was 10 years old. The new filtered water is great, not much better than the previous RO though. It does take significantly less space under the sink. The softened water is great too. I wouldn't drink it, it has a briny taste, but I've noticed significant improvements to my fixtures I'm trying to protect plus my hair feels so much nicer. I'm happy with the purchase and experience.

    The technician are professional. They response to the request very quickly. The technician checked…read morethe equipment and answered the questions carefully. The technician installed the equipment professionally and told me the warranty and instructions . Robert did a great job.

    Pro Water Solutions

    Pro Water Solutions

    5.0
    (115 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.

    MCS Water Technology

    MCS Water Technology

    4.3
    (101 reviews)

    We had to MCS to install the saltwater tank system and filter under the sink…read more The technician was very professional and did a excellent job This is the second time we had MCS installed the saltwater system. It's very reliable. I highly recommend others who want to install a saltwater system should go to MCS

    When the water purifier in my shop suddenly broke down, I contacted the original company that…read moresupplied it for repairs. At first, they proposed: $210 to replace the filter, plus $180 to install a new machine (the machine itself not included). I explained that I already had an unused backup unit of the same brand and model, also purchased from them. I only needed the old unit removed and the spare one installed, without replacing the filter. Based on their original logic, it should have just been the $180 installation fee. However, they changed their story and said that removing and reinstalling would cost $360 -- then added, "We can charge you $280." After that, they strongly pushed me to buy a brand-new machine for $700-800, with installation charged separately. The technician even claimed that removing the machine would cause continuous leaking because he "couldn't find the water valve," and that many parts would be needed for replacement. But the valve was right next to the machine, clearly visible. As a professional, saying he couldn't find the valve was hard to understand. If they had been transparent from the beginning -- for example, clearly stating $180 service fee plus $100 additional part -- I might have accepted it. But constantly changing the quote, exaggerating the difficulty, and steering me toward buying a new machine only made me feel like they saw me as an easy target. In the end, I handled it myself. The whole process took less than 10 minutes. No extra parts were needed -- just turning off the water valve, disconnecting the tubing, and reconnecting it to complete the swap. Sigh... I understand that every business wants to make money, but the way you do it really matters.

    Fina Water Systems & DLC Construction

    Fina Water Systems & DLC Construction

    5.0
    (189 reviews)

    Based on other Yelp reviews, I called Fina/DLC to inquire about installing a new water softener…read moresystem at the house. I spoke to Carlos who was responsive and easy to work with. I just had to text him some photos of my plumbing system for a quote. And, they had the best price. The new system has been in use for almost a month now and so far so good. After booking an installation appointment, the technicians arrived on time and two technicians installed the system in like 2 hours (which is fast in my opinion). One of my neighbors bought a softener system and hired a plumber to install the system as a weekend side hustle and that guy needed like half a day. They take Zelle or check payments.

    Long overdue review, but better late than never…read more I've always wanted a water softener so I called around got a bunch of quotes and then my neighbor had one installed and said these guys did a great job. I reached out and they got back to me real quick and with a great price for my water softener. The appointment was made, they showed up on time and walked me through what they were going to do. I asked them if they could add a spigot inside the garage so I could hook up a pressure washer and they said it wasn't a problem, just cover the cost of the materials and labor was free! Within about 2 hours, it was completed, granted I had a simple setup. I did have an issue with the water not being softened. I reached out to Carlos and he got back to me and troubleshooted the issue I was having. Recommended them to a few of my friends and they all had great experiences. I'd highly recommend Fina Water System for your water needs.

    Supreme Water Filtration

    Supreme Water Filtration

    5.0
    (82 reviews)

    I started looking into water softener companies after some of our appliances were getting damaged…read moreneeding replacing and our youngest having ezcema but kept getting worse. I've reached out to several companies but none of them was as straight forward and reasonably priced as these guys! I spoke with Raymond first then Joseph after when I was ready to proceed. They explained everything easily and to the point. We had our water softener and RO water filtration (under sink) installed last Thursday and what a difference these it has made! I love how soft the water feels and you honestly can feel the difference when washing your hands and showering. I wish we got one sooner. Btw, I had some questions afterwards and they answered everything patiently and friendly! I hope this company continues to grow and expand because their service and quality is great and I hope this review helps more people make their decision with going with these guys for their water softener and drinking system needs!

    Great experience with Supreme Water. Raymond and Joseph were…read morevery responsive and helpful throughout the process and answered all my questions clearly. Rene and his installation team arrived on time and completed the install efficiently and professionally. The quality of their system stood out compared to other options I considered, and the pricing was very reasonable. Everything went smoothly from start to finish. I'd highly recommend Supreme Water to anyone looking to install a salt-free water treatment system.

    Custom Water Systems - waterpurification - Updated June 2026

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