One Water Systems was very responsive, they have a great product, and a competitive price. We're very happy with their whole home water filtration system. We liked them because they are a product company not a plumber who wants to sell you an installation and because the product is high quality with a longer warranty (15 years) than similar products we evaluated. Also, the product includes annual check ups and was 100% white glove on the install and maintenance. read more

One Water Systems - The water filter - Water Purification Services Near Me - Carlsbad, California

Love their FRESH and CLEAN water. Bought one for our new home too. Also buying one for our daughter and her family. Drew is such a nice guy!

Quality service for a great value. They will help you finance as well if required. Our family enjoys the whole home filtration and 0-salt maintenance. read more

We have had One Water Systems for ten years now. The quality of both the equipment and service has always been excellent. It was time to replace the 10-year system with a new system. We were extremely concerned that the water be filtered as we live adjacent to a golf course that is frequently fertilized and water subjecting us to possible run-off. Kevin at One Water acknowledged and was familiar with my concerns and assured me that the system both met my concerns regarding appropriate filtering as well as softening. We now have a new fifteen year system. AND, the price was right! read more

One water promised soft water but their products did not deliver that promise. We purchased their elite 15 system + the additional Central water descaler. Both were recommended to achieve softer water. The water is so hard, I'm unable to wash my hair properly. It feels extremely sticky/waxy after washing my hair due to the calcium and magnesium in the water. I've been having to wash my hair with distilled water, which helped however is extremely inconvenient. With further research, I came upon a salt water shower head, which worked! We've tested the water with testing strips and it shows the water is extremely hard, with the one water systems installed. Extremely disappointed, as we spent thousands of dollars promising soft water but promises were undelivered. Yes- we had one of their technicians check on the system to make sure it's running properly and he said it's good to go. read more

See all

2 years ago, we purchased One Water Systems. It's not cheap, but we are very happy with both the product and their yearly no charge testing. The big advantage is that it's maintenance free. It comes with a 15 year warranty and they come back every year to check on it. And we don't even have to wipe the shower panels, they dry clean! We highly recommend One Water Systems. read more

See all

Bad experience. They are the same as my tap water based on the city tested it. When I called them to fix the problem , the representative said that I have not paid off my loan. They threatened to put my house in lien if I do not pay off my loan with them. They refused to test my water and asked me instead for my report. read more

We have had our system from One Water for about 6 years now. We always get a yearly call for a testing of our machine. We have never had any problems and feel good knowing we're drinking much healthier water with our filtration. I'm surprised when I go on yelp and see people complaining about this very ethical company. I've recommended it to many friends and all have been as satisfied as us. Sue V. read more

I bought a water purifying system from one water systems. I enjoy having this water system as it cleans the water I shower in and drink. Ramon Benz comes and tests my water every year and he does an excellent job. He takes good care of us and he's very efficient. read more

Great whole water system. Owned it now for 4 years. Highly recommend. Safe for everyone read more

Less than A year ago I purchased one water system. Everything was great. The last week I had a problem with the timer they're doing the automatic circulation flash got changed probably because of electrical outage. I send a text to Kevin the owner ( Who I ad A personal fallout not related for the unit). Kevin chose to be very professional and had his office taken care of the problem right away his son came over fixed everything tested the water and it sure made the system works great As a business owner I look at other businesses when they give me services when something is goes wrong I want to see how people take care of the problems because of that and the way one water system took care of the problem quickly and professionally they deserve a five star I wish every customer and Business owner will see that and appreciate it thank you. read more

We had a pipe leak that caused major damage to a bathroom. We had a lot of calcium build-up on our valves and we were told by the repairing plumbers that we should have a water softener. After much research and consulting our hydrogeologist daughter, we decided that the One Water System was by far the best. We like that it removes toxins from the water with carbon and breaks down the calcium/magnesium into microparticles instead of adding salt to counter the hardness.Two weeks after the installation, our water tastes so clean and fresh. Our shower doors no longer have any deposits on them. Our laundry is cleaner and brighter. Even the ice from our ice machine is clear. We have stopped buying bottled water and can drink from all the faucets in our house. By far the best is that it's maintenance-free so no worry about forgetting to add something to the system. Would highly recommend One Water Systems. read more

I find Kevin's response full of inaccurate statements and false info, first of all there was NO misunderstanding on my part, he was only interested in selling me a new system for $3300, never offered to "try a rebuild for a small fee$900", how could he while he stated in his reply that "equipment is broken and it cannot be repaired with the same components" ! In addition, his tech conducted only 9 check ups or services, not 11, for due to Covid-19, there was no service in 2020. I offered him $2800 for the new system, but he refused, and that's the honest truth! I don't harbor any animosity toward Kevin or want to hurt his business, rather simply and honestly provided feedback on my experience, and wish him and his employees well. read more

One Water Systems - One water system installed in June 2010 - Water Purification Services Near Me - Carlsbad, California

We love our new one water system , I would recommend it to anyone who is tired of water softener bags of salt . Great tasting water no maintenance. Thank you Sal & Debbie read more

It's really unique because one thing we did is we set up a couple of rain barrels and once a week they unload the water, unloads the gray water. We have a pump and we have our plants watered with it. So it works out really well for us on that aspect. Then in addition, when you want water, you just go right to the faucet and turn it on. So, I think too, I feel like our clothes are cleaner and also the service, they have a great service plan that if there's any situation that we need help with, they'll be right there to help us. So, I just wanted to let you know that we're very pleased with the one water system. read more

After my last review I met with the plumber and owner of the plumbing company which was contracted by One Water Systems to perform the install. While discussing the issue with the owner we all agreed that the the dry wall was indeed burned/singed by the blowtorch which is used to solder copper and that damage should have been repaired. Unfortunately due to the interactions previously mentioned in the original interview I no longer wished to keep the system. I was able to work out an agreement with One Water Systems and the plumbing company which the contracted with to perform the removal. The removal was done this morning and was ultimately satisfactory. I was provided some compensation in lieu of repairs + a full refund which is about as good as I can hope for given the situation we were in. So while my interactions were not the best with One Water Systems I think both sides wish this outcome could have been better but ultimately we found a mutual parting of ways. Despite some negative interactions (part of which can be seen in how they responded to my original review), we were able to find some mutual ground to resolve our issues. So while I can't say I give them my full recommendation they did ultimately own up to their mistakes and I'm satisfied with the outcome. I would probably give the resolution a 4 star so when combined with my original review of 1 star I would leave my review as an overall 3 star which I think is more than fair. 2 additional points to make: The work was in fact from One Water Systems and I can provide documentation and pictures showing the tank if needed. I was asked to remove my original review but to comply with Yelp suggestions and policy I was asked to provide an update instead. read more

One Water Systems has installed whole house systems for us in two residences over the last couple of years and we couldn't be happier. I love the great tasting water from all of our faucets and my wife really appreciates the benefits for our hair and skin. We also love that the system is contained in one unit and is maintenance free! Kevin and his team are true professionals and we highly recommend them and their systems to anyone who is interested in having better water in their homes. read more

I have always wanted a whole house water filter mainly for my hair. I noticed after living in Switzerland for 10 years when I came back to the USA my hair was horrible, no matter what conditioner i tried it was always tangled, hard to comb out and just felt and looked horrible and I knew it was because of the crap in the water. I have long hair and I was always wearing it up. Now its such a huge difference with the filtered water. My hair is shiny and soft and no more tangles. People that know me made comments about my hair looking soo great my hair dresser also noticed a difference. Its also nice to be able to drink the water from the tap. I would definitely recommend. read more

See all

Installed a whole house water purification system by One Water. As with many products on the market it has had malfunctions. This is not to say we don't enjoy the system because we love the clean, clear and tasty water from every faucet. One Water Systems have honored their 100% Warranty on every occasion with prompt service as promised. Evidently the malfunctions of the unit were a result of improper plumbing installed by a substandard plumping contractor. Overall it has been frustrating, but One Water Systems has been marvelous in their desire to sell a quality product and to ensure customer satisfaction. We want to thank Kevin, Hunter and Evo for their professionalism and swift action. read more

One Water Systems - One Water Whole House Purification System - Water Purification Services Near Me - Carlsbad, California

My wife's friend had this system installed in her home, so my honey knew from the first sip and her friend's superlative recommendation that this would be worth the investment. At a recent party held at my wife's friend's home, my wife was wanting some bottled water. When she couldn't find any, she poured a glass straight from the tap. Surprised by how good it tasted, she asked her friend about it. That's when she found out about One Water Systems. Her friend gave it an unqualified recommendation. One week later, I ordered a system for our home. We love it. No more trips to Costco for expensive bottled water! No more hard water. I expect this will also be great for our dishwasher, laundry and showers. read more

I had four different water filter companies come out to pitch me on which was the best. Lance and One Water was by and far the leader from the get go. He brought me a bottle of their water and just gave me facts. He was almost the most affordable, but the service model and low maintenance of One Water and their system is what sold me. Have had the system now for almost a month and it is amazing. Seriously recommend these guys over any competitor. read more

With all the things that are in the water these days you should not hesitate to make a change. My Wife and I had our second baby and became concerned with our water filtration systems. I was recommended to OneWaterSystems by a friend, so I did my research on different options and companies for water purity. After one call the representative explained to me all the benefits and was able to send a person that day to my house for a free installation quote. The system is very affordable and came with a 15 year warranty. read more

I have installed One Water System 2 years back with 15 years of warranty. But 2 days back my system started leaking water. I called the company, they said it was due to water pressure and warranty is not covered. I checked the water pressure in my home, it was under 60psi. I explained the same thing to Kevin and team. But they didn't accept it, and they are taking very rudely. They are trying to escape in fixing or replacing the system with warranty. They were asking for $1750 for fixing. I feel once the system started giving problem they don't support. I requested atleast to remove the system from my home with free of cost as it was broken within few years, but they said the cost is $750 to remove the system. I was very much disappointed and threw the system in the trash by paying $300 to a handyman. Overall I had a very bad experience with this company. read more

I've had this water system for years and it is excellent. So nice to not have to buy bottled water. And the water tastes great! I'm on my second new system! read more

I had my system installed recently and Im very satisfied. Everything was explained during the consultation. Outstanding quality work during installation. I can already tell the difference with the quality of the water at my house. This is a long term investment so its worth it. The best part is that its basically maintenance free. read more

I had One Water, whole house system installed and the whole process start to finish was so simple, efficient. And I'm so happy with the quality of the water for not only showering but drinking water and I would recommend them to any of my friends or neighbors. So I hope you will give them a try. read more

I did a lot research before I decided to purchase my system from One Water . They seem to be the most reputable and honest In the business . I like that they have been in business for so long, locally owned and operated. They also do a free check up on the machine every year. The machine works great, softer hair and skin and no chlorine smell from our water anymore. Give them a call! read more

I love this system! I get quality, delicious water from every faucet! It's great knowing I have safe, reliable water for myself and whole family everytime we drink or bathe. The staff and owner were very helpful from the first phone call to the installation and so forth. I recommend this company to everyone I know ! read more

For you one liners: noteworthy from A to Z! For the rest: Kevin and his staff at One Water Systems are awesome. Many months ago I called One Water to ask some questions about my existing water softener. The owner (Kevin) not only answered the phone and my questions, but volunteered to come out and give me a free water and air test. He arrived promptly and analyzed my water. He educated me about the problems with a water softening system that used salt. He also educated me about the reverse osmosis system that I also had. He then analyzed my air quality both inside and outside (around) my house. Next came the recommendations. He never tried to sell me anything or use those high pressure sales techniques on me. His passion for what he was doing, the systems that he sells and believes in sold me on getting some of what he had to offer. I then agreed to purchase both the air and water purification systems. However, my budget was a bit tight and although O had agreed to purchase the systems and had a scheduled install date, Kevin put my order on hold until I was ready! WHO DOES THAT??? Anyway, fast forward 3 months and as of today, I am the proud owner of a One Water purification system as well as a Healthway pure air system! The installer was awesome as well, he knew his stuff and was very thoughtful and thorough. I don't want to steal Kevin's thunder by telling you all the specs, and features of these systems, but my quality of life is already improving. My shower was awesome, no residue. I tested the water tonight with some fish strips and it is right in the middle, not to low or high on the PH level. I could go on and on, but let me close by saying, if you have any health issues, especially regarding breathing, allergies or skin issues, then you should give One Water Systems a call! Thank you Kevin and One Water Systems for your kindness, knowledge, passion, patience and professionalism! 5 stars all the way!!!!! As perfect as it gets! read more

My wife and I fully enjoy our "One Water System" for the following properties: Taste; all of the bad stuff is removed and the good stuff retained making this water in the whole house incredibly tasteful. The coffee tastes better than ever as would any beverage made with water. No more bottled water for us. Softness; The water is very soft and lathers beyond belief, making your skin feel fresh and clean. We use only half of the detergent that we used to in the clothes washer and the white clothes come out even whiter. Health; Drinking water in it's purest form is beneficial to good health because all of the bad stuff is removed. Descaling; We have a lot of calcium buildup in our home from water, but the E-15 electronic de-scaler breaks down this scale and over time will remove the scale from the pipes in you whole house Warranty; The "One Water Elite 15 with the E-15 De-scaler" has a warranty which covers all parts and labor for 15 years. Al T. read more

I have reviewed a few water treatment companies in the local market. I think I do a right pick to use one water system. I have a chance to talk the owner - Mr. Kevin. He answered everything single questions I had asked. It's pretty much you can understand the difference in product structure. I am pretty lazy person that I prefer a way of free maintaining devices with longer years warranty. Look no further. One water is the right choice. I have rescheduled several times before the builder's repair under warranty. The customer service are very good from customer desk to local sales and installation crew. Lance and Juan are extremely patient and helpful. Overall one water system is a good company after you contact with. One thing I like best is that they use a physical way to treat the water instead of a chemical way which can create zero side effects to your body, you almost obtain almost all kinds of the benefits that other treatment can offer. 15 years is not a short time promise as warranty. Thank you Kevin, lance , Juan and schedulers at customer service desk. I have recommended one water system to my friends and neighbors. Thank you again. Hao read more

One Water Systems - New system has been installed today! - Water Purification Services Near Me - Carlsbad, California

See all

This is our 2nd One Water System. Our first was installed over 10 years ago and worked flawlessly. The enhanced quality and taste of our water was just what we hoped for. Thank you so much, we truly appreciate this fine product. Kevin and his staff were excellent. In fact ten years later the same plumber (Juan) installed our new system with an even better warranty. read more

I'm very happy with how the system works and even more so with the people involved with the installation process. Kevin the owner has also been extremely helpful and responsive to all my questions. I definitely recommend one water systems! read more

I'm very impressed with the team at One Water. They patiently answered all my questions and explained everything clearly. My water filter is amazing and I am very pleased with my experience. Thank you! read more

We purchased the system from Kevin, the owner, in 2014. We were given a 10-year warranty. Kevin told us after the 10 years, we'd only have to pay $900 to replace the filter, which will be good for another 10 years. As the 10th year was approaching, I contacted Kevin. He said it would be impossible to install a new filter without potential damage and possibly not being able to get the replacement parts to make it work. Kevin offered a new system with a 15-year warranty and current technology for $3300, which he claimed was a $1,500 discount.. Since the 10-year warranty had no value, I don't see how offering a 15-year warranty is a benefit. Heck, make it 50 years. What's the difference if you are not going to stand behind it. Over the years we had the water filter, the water was tested, an annual free benefit offered at purchase, only happened about half the time. Offering a warranty and then essentially voiding it is a deceitful business practice. For slightly more money, we decided to purchase a system from a much better rated company. We did not want to do business with this company. read more

As a professional scientist and product development professional, technical data and product research supporting claims is important to me. My wife and I looked into a number of whole house water systems before deciding on One Water. They have done their homework and Kevin, the owner, addressed all our questions with honesty and a deep understanding of his systems advantages and value. We purchased the new Elite 15 system which carries a 15 yr warranty and new innovations that separate them from the competition. Water tastes great and my wife and I are thrilled with our decision to go with One Water. If you are looking for a water system supported by solid technical support and credibility ... look no further. One Water delivers on what they promise. read more

Great service both with determining what we needed and installation. Haven't had the equipment long enough to know fir sure, but seems to be working great so far. read more

We have had our system just under a month now. We live it. The water is amazing. So much better then the old salt filtration system we had. The whole family actually drinks more water now. The whole process was easy from start to finish. We are so glad we came across you guys. Thank you for everything. -Manny and Grace Aguirre read more

One Water installed our whole house filtration system and up until then, I spent time going from doctor to doctor for a skin condition. I saw an Allergist, Internist and of course Dermatology. Enduring test after test, it was a waste of time and money and my condition did not improve. We chose to install the system because the public water was ruining our plumbing fixtures. Within a couple of weeks of the install, my skin started to change. By month's end, my skin was completely normal. An unexpected bonus was that my hair was suddenly shiny and healthy. I do not know if my skin and hair changed because of showering in the now filtered water or because of the now delicious drinking water from our taps. Even our ice tastes better. We also no longer have issues with our plumbing fixtures. Thank you all so much! read more

If your considering the purchase of a water filtration system, then I am glad your reading this. My wife and I take the quality of our water seriously and the system we purchased from One Water System has not fallen short of our expectations. Every time I pour a glass of water for someone I always ask what they think of it. Its always a pleasant answer. The customer service is excellent and we have had zero issues working with them, from gathering information to help us make an informed pre purchase decision up through the annual check up they make with us just to see how things are going. My recommendation to you the reader is to read no more. Just buy the best and dont waste your time with the rest. We Love Our Water!! Thanks One Water System!! read more