Enjoy Premium Quality, Soft Water Without 99% Of Contaminants Using The Most Efficient Filtration Systems In The World!

Discover the groundbreaking, non-electric water softener and reverse osmosis systems that give you delicious, filtered water without the ongoing maintenance and headaches!

45 Years



Happy Customers

60 Days

Money-Back Guarantee*

10 Years

Parts Warranty*


Water Systems

Enjoy Silky Soft Water and Purified Drinking Water In Your Silicon Valley and Bay Area Home

California water is notoriously full of hard minerals like calcium and magnesium that damage pipes, appliances, clothes, hair, and skin, but there could also be more sinister things lurking in your water. Studies reveal that millions of Americans access tap water that’s contaminated by chloramine, volatile organic chemicals (VOCs), pharmaceuticals, forever chemicals, PFAs and PFOs, as well as hexavalent chromium… with the Silicon Valley and Bay Area as one of the worst-affected regions!

If you want to protect your family with silky-soft filtered water that’s gentle on skin, hair, and clothes…and purified water that’s safe to drink and up to 99% free from contaminants… then we’ve got the perfect water softener or reverse osmosis  system for you!

Kinetico Water Softeners

Flow silky, soft water from every tap in your home.

  • Cleaner Clothes & Dishes With 50% Less Detergent!

    Imagine no more chalky white build-up on your glasses, utensils, or fixtures! Plus, soft water means your clothes will keep that lovely soft, bright, fresh new feeling a whole lot longer.

  • Pipes And Appliances Last 30% to 50% Longer

    Family budget stretched a bit thin? Stop wasting time and money repairing pipes, fittings, and water appliances that have been worn down by hard water!

  • Softer, Healthier Hair And Skin

    Tired of flaky skin or brittle hair? There’s nothing quite like a beautiful, soft water shower to revive lifeless hair!

Kinetico Reverse Osmosis Systems

Enjoy healthy, filtered drinking water for your family.

  • Delicious-Tasting Drinking Water

    Nothing beats turning on your tap and filling up a glass with crystal-clear, odorless drinking water that tastes like it came directly from an expensive brand of bottled water.

  • Safe And Filtered From 99.9% Of Contaminants

    Keep your family safe from harmful contaminants like volatile organic compounds, chemicals, pharmaceuticals, PFAs, chloramine, and other agents that may cause long-term health problems.

  • Save Thousands On Bottled Water

    Bottled water stacked high in your fridge, kitchen, and garage? Don’t waste a fortune on plastic bottles that take up your space and are a massive pain to recycle!

Kinetico Specialty Filtration Systems

Solve your home’s specific water issue with an advanced specialty filtration system.

  • Give Your Family High-Quality Water They Deserve

    Remove impurities, contaminants, and chemicals lurking in your home’s water using a specialty filtration system that is based on your water test results.

  • Keep The Kids Safe From Long-Term Health Risks

    Rest easy at night knowing your family is safe from harmful contaminants and protected against potentially dangerous, long-term health risks.

  • Boost Your Family Budget By $1,000s A Year!

    Get a longer life out of your dishwasher, washing machine, and other water appliances, while reducing water usage and slashing your maintenance costs.

Save $1,000 Off Any Water Softener Or $500 Off Any Reverse Osmosis System

For a limited time only, a water solution with De Anza Water Conditioning, Inc. will save a HUGE $500 off your reverse osmosis system… or $1,000 off your water softener! Special offer ends soon.

Join Over 15,000 Happy Customers From California…

Anita W.

Honestly, over the years of calling De Anza Water for service was never a headache.  They had always been responsive and came on time and when they said they would.  There were never any surprises.

When I sold my house recently, I needed to fix the Reverse Osmosis unit because of a leak which was due to the housing of the unit, no big deal, really.  I worked with Jennifer Administrative Assistant where she never ever left me high and dry.  She responded very quickly, was completely behind what she said, and she helped schedule an appointment with the new owner.  She is the best!!!

The unit is fixed and working properly! Thanks so much for the great service over the years!

Los Altos, CA

Pai P.

I was looking for a good water softener for a long time. I finally had enough with hard water for water stains and hair loss. So I started shopping around again and read some good reviews about Kinetico. DeAnza was very knowledgeable about water softener and understood my concerns about using soft water for irrigation and proposed a perfect solution to install another irrigation pipe directly to my backyard. Considering all the unique features of Kinetico and my concern was resolved, I hired De Anza water to install a refurbished system.

The system looked very nice in my garage. They showed me how to by-pass the water softener to clean the water filter and also mentioned that where the system might leak. So far the system is working perfectly and I cannot be happier with how my water now feels.

San Jose, CA


Our family chose De Anza Water Conditioning for many reasons.  They were extremely responsive to my online Yelp quote request, super friendly on the phone, and they carry a very high end product.  They are an authorized dealer of Kinetico which is basically a 2 for 1 product you get soft water all the time and all of your entire homes water is filtered.

Installation was super easy and fast.  Plumbing was routed very efficiently and clean looking.  It took only a couple of hours to finish the install. It has been a little over a week now and we can definitely taste, feel, and see a huge difference. Soap is super bubbly, water taste is amazing, our hair is softer more clean feeling.  We are really excited about our water quality now.  In honesty I was not expecting this big of a difference.  We don’t like to mess around drinking and showering in poor quality water.  Thank you De Anza.

Mountain View, CA

Kristine L.

Requested De Anza Water to service our water softener and change out the whole house filter, and reverse osmosis water filters.  When our tech arrived, he suggested the possibility of replacing our 20 year old water softer. Technology has improved the softener to use 30% less water, 30% less salt, and less energy. Sounded like a win to us. We’re glad we did it! I’ve been with De Anza Water conditioning for 20 years. We always find them to be 5 stars for us.

Los Gatos, CA

Shana L.

De Anza water has been a great solution for a filtered water system for our office! They are professional and responsive, highly recommend!

San Francisco, CA

Karen M.

I highly recommend De Anza Water to anyone!! Great customer service!!!

We just had to place a service call (for something we caused… we still love the Kinetico system!!). Making the appointment was easy. We really appreciate that we got a message when our technician was on his way. It had his name, photo and a link to see how far away they were and when they would arrive.

They were so thorough with everything and respectful of our property!! And provided helpful info for extending the life of the system. 

Sunnyvale, CA

Vicki A.

I was very happy with the service and support from De Anza Water conditioning. Their package and service was not the least expensive that I considered but I was impressed by the long term support they provide their customers. I had a lot of questions and our sales person Tam was patient and addressed all my concerns. Installation went smoothly and I am SO happy with the system and the quality of our water.  I highly recommend De Anza Water.

San Jose, CA

Shijavi P.

Flow pressure of water is not compromised either, while ensuring great quality filtration and softening. Equipment does not use electricity either, compared to other brands that use electricity. Maintenance is not required every year for softener compared to competitors. This is a high quality product. Although expensive than other cheap brands, quality speaks for itself. In long run that additional expense does pay off.

Sunnyvale, CA

Catherine P.

I just LOVE these folks!  They have serviced my water softener for the better part of the last 15 years:  they are always on time, they are always thorough, the price is always what they said it would be when we scheduled the appointment, and they are always professional.  Patrick came out a couple weeks ago to change the carbon.  When he was doing it, he noticed a couple problems with the water softener and so he just fixed them without any extra charge.

Anna S.

We have been drinking their water since moved to California. we didn’t like the hard water and the quality, found De Anza Water and learnt that we could get water softener and filtered drinking water installed, we decided to go this path. They came out, got everything installed, Patric, the installer is extremely knowledgable and helpful, he’s really clean and efficient, got everything done in 4 hours! Now w can’t wait to take it first shower with this new water softener! If u want get good quality water, bath ur kids and take care ur water pipes, go to De Anza water!

Santa Clara, CA


We have been a client for 10 years for water softener with De Anza and very happy.  After doing a lot of research, we had Kinetico RO put in for drinking water and LOVE the system.  It is amazing.  John came out to our house for consultation and we really learned a lot from him.  The water quality Exceeded our expectation.  Mike installed the unit and he was superb and we thank him for his amazing work.  Thank you John, Lynne, Mike, Judy and Ian.  The customer service is great.  If you are really looking to get an RO system, this is it.  It is expensive but WORTH IT. Every time I drink it, I think of John and how passionate he is about his work and company.

Campbell, CA

Mike H.

From start to finish, the most professional company I have ever worked with and who only sells and installs the most superior and highest quality water treatment systems available!

Los Gatos, CA

Claus D.

De Anza Water conditioning is consistently over delivering. My first installation was in 2008. Ever since then, when ever I have had a question or concern they were no more than a phone call away. Always on top of things and super helpful.

San Jose, CA

Why Kinetico Was Named The Most Efficient Water Softener In The World

Features Single Tank, Electric Timer Softeners
Works without electricity
Concurrent Regeneration For Consistent Water Supply
Low maintenance
System regenerates based on water usage
Soft Water 24/7
Control valves operate in clean, soft water
Patented technology
Made in the USA Sometimes
Uses less salt And water
10-year warranty*

Save $1,000s On Maintenance And Extend The Life Of Plumbing & Appliances By Up To 50%

Sick of clogged pipes or broken toilet parts in your home? Tired of your dishwasher, washing machine, or coffee maker breaking down years earlier than expected? Can’t stand the sight of ugly scale build-up that wears down your taps and fittings?

A premier water softener is an investment that pays for itself over time. Soft water keeps your plumbing scale-free and healthy, saves you money on maintenance, and increases the lifespan of appliances by as much as 50%!

Get Safe, Soft Water In Your Home In 4 Easy Steps

Get A Free Water Test

Simply fill in the short form, and one of our water specialists will arrange a quick and easy test to see if your water is hard or contains contaminants.

Claim Your $500-$1000 Discount

If your water is contaminated, our experts will reveal the perfect high-quality system that can filter out up to 99.9% of contaminants. For a limited time, you’ll also save $500 off a Kinetico Reverse Osmosis System and $1000 off a Kinetico Water Softener!

Your New System Is Installed By Our Experts

Our experts will get to work and install your non-electric, low-maintenance system in your home right away. Thanks to our money-back guarantee and warranties, you’ll have peace of mind enjoying silky soft water for years to come.

Enjoy Safe, Refreshing Water That Tastes Delicious

No more contaminants, no more hard water, and no more nasty smell. Just safe, filtered delicious water that flows consistently from your home tap!

You’re Covered By De Anza Water Conditioning’s Crystal-Clear, Triple Guarantee

With more than 45 years of experience and trust built up from serving 15,000+ Bay Area customers, we want to keep that going for the next 45 years and beyond. That’s why we cover you with our unbeatable, crystal-clear triple guarantee.

Here’s how it works:

  1. Soft, Filtered  Water Guaranteed

    Our cutting-edge Kinetico water softeners and reverse osmosis systems will consistently produce soft, filtered water on a 24/7 basis. If your system doesn’t perform for any reason, simply let us know in the first 60 days, and we’ll fix or replace it free of charge.

  2. Industry-Leading System Warranty

    All our Kinetico systems carry an industry-leading warranty, so you get peace of mind thanks to lower maintenance costs for years to come.

  3. Try It Before You Buy It!

    Not sure whether a water softener or reverse osmosis filter is right for your business (or both)? Try one risk-free for 60 days! If you don’t love it, we’ll uninstall it AND give you 100% of your money back.

We’ve Proudly Served The Silicon Valley and Bay Area For 45 Years


Claim Your FREE Water Test With A Kinetico Certified Water Specialist (Worth $125)

Save Up To $1000 When You Invest In One Of Our Leading Water Softeners Or Reverse Osmosis Systems!


Want to know whether your home or business water is safe? Don’t put up with scaly hard water that tastes like it was scooped out of a swimming pool any longer! Book your free water test with our Kinetico-certified specialists, available for this month only. Discover how you can get soft, filtered water that’s crystal clear and safe to drink!

Discover How To Remove Up To 99.9% Of Contaminants And Get Safe, Delicious-Tasting Water In Your Home! (Value $125)


Get Your FREE Water Report to Discover the Quality of Your Water in Your Zip Code

Wondering whether you need a water softener, a filtration system, or both? Find out whether there are hard minerals or potentially harmful contaminants in your water supply! Simply let us know your details, and you’ll have a simple, easy-to-understand report that reveals everything you need to know ASAP!

Discover How To Remove Up To 99.9% Of Contaminants And Get Safe, Delicious-Tasting Water In Your Home! (Value $125)