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    McCowin Water

    4.9 (142 reviews)
    Closed 9:00 am - 5:00 pm

    Get pricing

    Response time

    10 minutes

    Response rate

    100%

    Services - McCowin Water

    Water purification system cleaning and maintenance

    Water purification system installation

    Water purification system repair

    1 More Service

    Salt delivery

    McCowin Water Photos

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    Professional installation - Hague WaterMax
    Candace I.

    I have waited over two years to write this review to ensure the water filtration system worked well. Everything is working great! Scot Drew was a terrific sales rep. No high pressure. Customer service continues to be excellent! Neat and clean installation (see pic). The filtration system has made a tremendous difference in our water quality! Totally worth the investment!

    Anita K.

    We purchased a water softener and reverse osmosis system for drinking water and we're very pleased with the product and service we purchased. Brian McCowin helped us from start to finish and answered our many questions. What we liked about their business model is that they represent numerous products, and could find the product that suited our needs most closely. We were interested in a system that was highly efficient, would last the test of time and resulted in minimal water wastage. Our garage also had some space constraints and so each of the units was installed in a separate location, which led to a much cleaner footprint in our garage. (Another company that we got a bid from did not want to split the units into different locations because it would result in more labor for them.) They were not the lowest quote by any means but we felt we got a very high quality system and the installation was flawless as well. Their follow up care was excellent as well.

    Yolanda D.

    Wow! What a difference great tasting water is. Showering. Dishwasher. Washing machine. Everywhere our new water system flows is CLEAN. SOFT. DELICIOUS WATER. Scott, Mc Cowin's excellent representative explained in detail the systems they offered. Reasonably priced so opted for the best system. Thank you Scott for your excellent water purification system. Could not be happier and would choose it again.

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    4 years ago

    Process could not have gone any smoother. Everyone we worked with was friendly, professional, and knowledgeable. Thanks, McCowin Water!

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    Dava B.

    You're so welcome Laura. Thank you for the great review!

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    7 years ago

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    5 years ago

    What a great job! On time and worked hard! I'm really pleased with the water softener. Do doubt I'd highly recommend !

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    6 years ago

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    Dava B.

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    9 years ago

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    4 years ago

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    Dava B.

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    5 years ago

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    Dava B.

    Thank you so much Eileen, we appreciate you too!

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    4 years ago

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    12 years ago

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    4 years ago

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    Dava B.

    We thank you for your review!

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    5 years ago

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    Dava B.

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    6 years ago

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    Dava B.

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    4 years ago

    Great service , top notch equipment , ask for Scot , he is super knowledgeable and listens to what you need

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    12 years ago

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    6 years ago

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    Dava B.

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    5 years ago

    Outstanding job! Scott and Matthew are truly professionals! Everything went smooth and we highly recommend this company!

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    Dava B.

    Thank you Laura, we appreciate you too!

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    5 years ago

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    Dava B.

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    6 years ago

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    9 years ago

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    9 years ago

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    Brian M.

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    Page 3 of 4

    McCowin Water Reviews in Other Languages

    Ask the Community - McCowin Water

    Does water softener require approval from Santa Margarita water district?

    No, it doesn't.

    Hi does water softener installation requires permit from city?

    Not usually.

    Don’t See Your Question? Ask Away!

    Review Highlights - McCowin Water

    Brian, the owner, was even able to squeeze us in on very short notice to take care of an urgent request we had.

    Mentioned in 59 reviews

    Read more highlights

    Diamond Pure Water Filtration

    Diamond Pure Water Filtration

    (438 reviews)

    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.

    Exactly as advertised and promised. Mike came to the house, gave me a brief water education and…read moreexplained how their system worked. Picked a date and they came out and installed it. Immediate impact and improvement from our softened and filtered water. Price was very fair and less than I expected. I would recommend for sure.

    Supreme Water Filtration - 13"x54" All in one water softener plus carbon filtration system

    Supreme Water Filtration

    (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!

    We have a baby on the way and I couldn't fathom living with our hard water anymore. Husband and I…read morecontacted multiple water filtration companies and we were very happy to come across Supreme Water Filtration. Communication was always prompt, courteous, and they worked with us dealing with our HOA trying to get the water softener installed with some adjustments. Once we got approval, we set a date quickly and we appreciate they were able to come out so soon and install it so fast. The cost for the whole house filtration we got was so reasonable and our pockets are very happy with the competitive pricing. We've had it for a couple months now and the difference is incredible and we are so happy to have worked with this company. My sister is looking to have a water softener installed as well and I have already referred her to them.

    McCowin Water - waterpurification - Updated May 2026

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