Los Gatos Water Filtration
Family Owned & Serving Santa Cruz Since 1984
Los Gatos Water Filtration
Family Owned & Serving Santa Cruz Since 1984
Flexible Financing Available Through GreenSky
Don’t Let Cost Stop You From Getting It Fixed
Plumbing problems don’t wait — and now, neither do you. We offer flexible payment plans so you can get the work done today without the financial stress.
Water Filtration in Los Gatos, CA
Are you looking for water filtration in Los Gatos that will help you get the water you’ve always wanted? Maybe you don’t like the taste of your water or you’ve noticed hard water marks appearing on your glasses or other places in your home. Water filtration can help with both of these problems and more.
At Rosenthal, we see helping you with water filtration as helping you make your home into a place where you are happy to live. After all, if you don’t like the water, it might be hard to feel at home somewhere or to feel like you can fully enjoy your house. Once our plumbing team gets you the water filtration in Los Gatos that you need, you’ll be better able to use your home the way you want to.
One of our Los Gatos plumbers will start your water filtration process by testing your water. This will tell us exactly what minerals and more are present in your water. Then, we can help you find a water filtration solution that will target those specific things. We’ll never sell you a system that we don’t believe in, so we will tailor our solution to your needs and make sure it comes from a reputable manufacturer who we trust.
Here to Help You Get Started
Request a FREE Estimate
At Rosenthal Plumbing, we offer free estimates for all your plumbing service needs, ensuring you get the best value and clear pricing before any work begins. Request a free estimate online or call today!
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Not sure about a quote you got from another company? Plumbing work can feel overwhelming, especially when the numbers feel ambiguous. We’ll take a look, give you our honest take, and help you figure out what makes sense for your situation.
Our Los Gatos Services
Call Rosenthal Plumbing for Water Filtration Services in Los Gatos Today!
You shouldn’t have to deal with odd tasting water or hard water. Get water filtration in Los Gatos so that you can enjoy drinking your water, washing your clothes and dishes in it, and bathing in it, too. Our Santa Cruz plumbers are fully equipped to answer any questions you have about all water filtration services in Los Gatos. We’ll help make sure you can use your water in all the ways that you need to without worrying or stressing about it anymore.
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Your Plumbing Experts
For more than three decades, Rosenthal Plumbing has been the go-to source when property owners need a reliable Santa Cruz plumbing company. We provide a wide range of quality plumbing services in Santa Cruz, CA, from repairs and maintenance to installations and replacements.
About UsHow do I know if I need a water filtration system in my Los Gatos home?
There are a few telltale signs that your home’s water could benefit from filtration. If your tap water has an unpleasant taste or smell — whether it’s chlorine-like, metallic, or earthy — that’s one of the most common reasons Los Gatos homeowners reach out to us. Hard water is another big one: if you’re seeing white, chalky buildup on your faucets, cloudy spots on your glasses after running the dishwasher, or your skin and hair feel dry after showering, you’re likely dealing with elevated mineral content in your water. You might also notice that soaps and detergents don’t lather well, or that your clothes come out of the wash looking dull and stiff. Beyond the things you can see and taste, there may be contaminants in your water that aren’t immediately obvious — like sediment, heavy metals, or chemical traces from agricultural runoff or aging municipal infrastructure. The best way to know for sure is to have your water tested. At Rosenthal Plumbing, we start every water filtration consultation by testing your water so we know exactly what’s in it. From there, we recommend a system that targets your specific issues — we’ll never sell you something you don’t need.
What’s the difference between water filtration and water purification, and which one do I need?
This is a great question, and one we hear often from Los Gatos homeowners. Water filtration and water purification both improve your water quality, but they work differently and address different concerns. Water filtration systems use physical filters — like activated carbon, sediment filters, or multi-stage cartridges — to remove specific contaminants such as chlorine, sediment, heavy metals, and certain chemicals. They’re excellent for improving taste, reducing odor, and dealing with hard water issues. These are the most common systems we install in Los Gatos homes. Water purification goes a step further. Systems like reverse osmosis or UV purification are designed to remove a broader range of contaminants, including bacteria, viruses, dissolved solids, and other microorganisms. Purification is typically recommended if your water test reveals more serious contamination or if you’re on a well water system. The right choice depends entirely on what’s actually in your water — which is why we always start with testing. Once we see the results, we can make an honest recommendation on whether filtration, purification, or a combination of both is the best fit for your home. At Rosenthal Plumbing, we only recommend systems from reputable manufacturers that we trust, and we tailor every solution to your specific water quality needs.
Should I get a whole-house water filtration system or just an under-sink filter for my Los Gatos home?
It depends on what problems you’re trying to solve. An under-sink filter is a great, budget-friendly option if your main concern is improving the taste and quality of your drinking and cooking water at one specific faucet — usually the kitchen. These point-of-use systems are relatively simple to install and can be very effective at reducing chlorine, sediment, and certain contaminants from the water you consume. A whole-house water filtration system, on the other hand, treats all the water entering your home — every faucet, shower, appliance, and fixture. This is the route we recommend if you’re dealing with hard water, since mineral buildup affects far more than just your drinking water. It impacts your showerheads, water heater, dishwasher, laundry, and pipes throughout the house. A whole-house system also makes sense if you’re experiencing issues like dry skin and hair after bathing, spotty dishes, or scale buildup on fixtures. Many Los Gatos homeowners end up choosing a whole-house system because the water quality issues they’re experiencing affect their entire home, not just one tap. During your consultation, our team at Rosenthal Plumbing will test your water, talk through your concerns, and help you decide which type of system makes the most sense for your situation and budget. We provide free estimates and will always give you our honest recommendation.
Reviews From Your Community
Thanks for responding so quickly & for sending such an excellent plumber. The work was thoroughly explained & quickly completed. I will use Rosenthal plumbing for all my plumbing needs.
I woke up to find my downstairs ceiling dripping water. The leak was coming from my upstairs bathroom. I went into full panic mode. I called Rosenthal Plumbing and explained what was going on. Due to the urgency of my situation, the dispatcher Selina, contacted Mr Raffael
Just had Alex fix our sink drainage problem. He did an excellent job explaining and solving the issue. highly recommend
When you wake up in the morning with no hot water. You might think it is going to be a bad day. However here in Santa Cruz, we have miracle workers in the form of the awesome technicians at Rosenthal Plumbing. Our water heater, drains, and lines were so old they were amazed it
Tech did a great job. Job was done within 2-3 hours. Very professional
Alexander came promptly to address a leak in the water supply filter system. He thoroughly assessed the situation and checked on the bathroom and kitchen plumbing. He was quick and professional and did a great job fixing the leak and installing a new, upgraded water filtration
Alexander was fantastic. Discovered damage we didn’t know about and fixed everything in a single afternoon. Would have been structural floor damage in our very near future if he hadn’t carefully checked everything. Provided 3 different detailed solutions/costs for the full job.
Josh was very helpful and efficient in clearing the drain lines from my house to the main sewer line. He diagnosed the problem and ran a camera to give me the bad news of roots and collapsing old pipes. I have complete confidence in his work and he was a pleasure to meet and
Mario, was Fabulous! He explained everything to me with all my options. I Will definitely call again and ask for Marie. He was very professional along with being very courteous. Thank you for coming out so quickly, that was much appreciated.
Called in the morning and had an expert coming to my place a few hrs later. The technician, Joshua Obert, was knowledgeable, friendly and very professional . He did not rest until he found and fixed the problem. I could not be happier with his work. Highly recommended!
Anthony is an excellent job explaining every bit of work that needed to be done. I was impressed with the work that was done along with the fact they were able to get it done with same day notice! Highly recommend and will definitely be back in the future!
I just moved here into an older mobile home that needed major repairs, Ian and Travis replaced my water piping and water heater and some other plumbing issues. They are rock stars and did an awesome job! I highly recommend Rosenthal Plumbing, they also offer financing for the
Josh from Rosenthal Plumbing was super pleasant to deal with and did an outstanding job servicing my tankless water heater. He also gave me recommendations for future care to help my equipment last longer. It was easy to schedule my appointment with Rosenthal too. I'm glad that
I am writing to express my sincere appreciation for the exceptional service provided by Brandon during his recent visit to our facility. It was a pleasure to have Rosenthal Plumbing on-site again. Brandon’s work is distinguished not only by its high quality but also by the
Josh called before coming and then arrived on time. I’m usually a bit uptight when workmen are at my home but It was really nice to have him around. He explained everything in detail and gave me several options to choose from. All of them were practical and worthy of
I'm a 75 year old retired general contractor that couldn't be any happier with the experience. From starting the service experience online, the follow thru from the office, to the work performed by Josh, the technician. Keep up the good work
Prompt, professional communication to set up the appointment with an introduction to my assigned technician, Mario, via his Bio before he arrived, complete with a photo. Mario was amazing in helping fix our plumbing issue. He walked me through the different options and helped me
The contractors renovating our house installed our new household water softener, but it wasn't working and they couldn't figure it out. Anthony, from Rosenthal Plumbing, came and was very detailed and methodical in his diagnostic approach, which I really appreciated. Within 15
Everyone was friendly and professional. The dispatcher was accurate in the timing of appointment and Josh took care of our problem. He was very thorough and even took the time to other areas of our homes plumbing. He explained everything he was doing and was happy to answer any
Josh came out this morning, checked out the issues and also found few other items that needed attention. On site, prepped 5 to 6 quotations, with varying available services within 20 min. Very funny, knowledgeable, and detail oriented person. I would recommend Rosenthal Plumbing
My service was great. We had Josh and he was awesome! He communicated every step of the way and was very easy to work with and talk with. I would definitely have Josh come back anytime I need Something done !
I had a major leak in my plumbing which was older plastic piping. Rosenthal responded right away,assessed the problem and got to work the next day replacing all plumbing including replacing all shower and tub fixtures. Total 4 days work. They arrived on time and worked all
Got a chance to work with Troy from Rosenthal And it was an awesome experience. Was very friendly. We work together in strategizing to best assist the customer that needed repairs underneath the home. I would Definitely, recommend them for any plumbing problems You may
I needed a plumber to come out fast after an unpleasant plumbing issue with our bathroom sink required immediate attention. Rosenthal was able to have someone out with in 1-2 hours of my initial call. Josh the plumber was friendly and sociable. While Detailed in looking at the
Thanks for responding so quickly & for sending such an excellent plumber. The work was thoroughly explained & quickly completed. I will use Rosenthal plumbing for all my plumbing needs.
I woke up to find my downstairs ceiling dripping water. The leak was coming from my upstairs bathroom. I went into full panic mode. I called Rosenthal Plumbing and explained what was going on. Due to the urgency of my situation, the dispatcher Selina, contacted Mr Raffael
Just had Alex fix our sink drainage problem. He did an excellent job explaining and solving the issue. highly recommend
When you wake up in the morning with no hot water. You might think it is going to be a bad day. However here in Santa Cruz, we have miracle workers in the form of the awesome technicians at Rosenthal Plumbing. Our water heater, drains, and lines were so old they were amazed it
Tech did a great job. Job was done within 2-3 hours. Very professional
Alexander came promptly to address a leak in the water supply filter system. He thoroughly assessed the situation and checked on the bathroom and kitchen plumbing. He was quick and professional and did a great job fixing the leak and installing a new, upgraded water filtration
Alexander was fantastic. Discovered damage we didn’t know about and fixed everything in a single afternoon. Would have been structural floor damage in our very near future if he hadn’t carefully checked everything. Provided 3 different detailed solutions/costs for the full job.
Josh was very helpful and efficient in clearing the drain lines from my house to the main sewer line. He diagnosed the problem and ran a camera to give me the bad news of roots and collapsing old pipes. I have complete confidence in his work and he was a pleasure to meet and
Mario, was Fabulous! He explained everything to me with all my options. I Will definitely call again and ask for Marie. He was very professional along with being very courteous. Thank you for coming out so quickly, that was much appreciated.
Called in the morning and had an expert coming to my place a few hrs later. The technician, Joshua Obert, was knowledgeable, friendly and very professional . He did not rest until he found and fixed the problem. I could not be happier with his work. Highly recommended!
Anthony is an excellent job explaining every bit of work that needed to be done. I was impressed with the work that was done along with the fact they were able to get it done with same day notice! Highly recommend and will definitely be back in the future!
I just moved here into an older mobile home that needed major repairs, Ian and Travis replaced my water piping and water heater and some other plumbing issues. They are rock stars and did an awesome job! I highly recommend Rosenthal Plumbing, they also offer financing for the
Josh from Rosenthal Plumbing was super pleasant to deal with and did an outstanding job servicing my tankless water heater. He also gave me recommendations for future care to help my equipment last longer. It was easy to schedule my appointment with Rosenthal too. I'm glad that
I am writing to express my sincere appreciation for the exceptional service provided by Brandon during his recent visit to our facility. It was a pleasure to have Rosenthal Plumbing on-site again. Brandon’s work is distinguished not only by its high quality but also by the
Josh called before coming and then arrived on time. I’m usually a bit uptight when workmen are at my home but It was really nice to have him around. He explained everything in detail and gave me several options to choose from. All of them were practical and worthy of
I'm a 75 year old retired general contractor that couldn't be any happier with the experience. From starting the service experience online, the follow thru from the office, to the work performed by Josh, the technician. Keep up the good work
Prompt, professional communication to set up the appointment with an introduction to my assigned technician, Mario, via his Bio before he arrived, complete with a photo. Mario was amazing in helping fix our plumbing issue. He walked me through the different options and helped me
The contractors renovating our house installed our new household water softener, but it wasn't working and they couldn't figure it out. Anthony, from Rosenthal Plumbing, came and was very detailed and methodical in his diagnostic approach, which I really appreciated. Within 15
Everyone was friendly and professional. The dispatcher was accurate in the timing of appointment and Josh took care of our problem. He was very thorough and even took the time to other areas of our homes plumbing. He explained everything he was doing and was happy to answer any
Josh came out this morning, checked out the issues and also found few other items that needed attention. On site, prepped 5 to 6 quotations, with varying available services within 20 min. Very funny, knowledgeable, and detail oriented person. I would recommend Rosenthal Plumbing
My service was great. We had Josh and he was awesome! He communicated every step of the way and was very easy to work with and talk with. I would definitely have Josh come back anytime I need Something done !
I had a major leak in my plumbing which was older plastic piping. Rosenthal responded right away,assessed the problem and got to work the next day replacing all plumbing including replacing all shower and tub fixtures. Total 4 days work. They arrived on time and worked all
Got a chance to work with Troy from Rosenthal And it was an awesome experience. Was very friendly. We work together in strategizing to best assist the customer that needed repairs underneath the home. I would Definitely, recommend them for any plumbing problems You may
I needed a plumber to come out fast after an unpleasant plumbing issue with our bathroom sink required immediate attention. Rosenthal was able to have someone out with in 1-2 hours of my initial call. Josh the plumber was friendly and sociable. While Detailed in looking at the
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4.9 Stars | 500+ Reviews