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The Silicon Valley and Bay Area’s Leading Provider Of Kinetico Water Systems For Over 40 Years

We’re A Family-Owned Business Dedicated To Providing Softer, Safer Water

For four decades, De Anza Water Conditioning, Inc. has been a family-owned and operated business. Our secret to 40+ years of longevity is Kinetico Water Systems–the only high-quality systems we’d use in our own homes!

We also provide free water tests to families and businesses to ensure each system is tailored to solve your unique water challenge. The result is more than 15,000 happy customers, from homes to apartment complexes, wineries, hospitals, universities, restaurants, and everything in between!

We’re An Authorized, Independent Kinetico Dealer, Offering The World’s Most Efficient Water Systems

When it comes to quality, we know Kinetico Water Systems are in a class of their own – and that’s why we use them! Kinetico systems are uniquely positioned to keep you safe from hard, contaminated water that causes problems for 100,000s of California‘s every year.

Kinetico systems are low maintenance, cost-efficient, and use revolutionary technology to provide a continuous water flow without electricity. The right filter or softener could save you thousands on bottled water, give you silky soft clothes, hair,  skin, and extend the lifetime of your pipes and water appliances by years!

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The Silicon Valley And Bay Area’s Leading Provider Of Kinetico Water Systems For Over 40 Years

We’re A Family-Owned Business Dedicated To Providing Softer, Safer Water

For four decades, DeAnza Water Conditioning, Inc. has been a family-owned and operated business. Our secret to 40+ years of longevity is Kinetico Water Systems–the only high-quality systems we’d use in our own homes!

Why Trust Us To Provide Clean, Soft  Water For Your Home Or Business?

High-Quality Products And Advice

Quality is the cornerstone of everything we do. From quality systems to quality service, there’s a reason 15,000+ customers trusted us over the competition!

Friendly Service With A Smile

Experience friendly service and leverage over four decades of expertise, so you can truly make the best decision for your family or business!

Leading Warranties And Guarantees

Become a De Anza Water Conditioning, Inc. customer and enjoy peace of mind with a manufacturer’s parts warranty of up to 10 years, a 1-year labor warranty, and a 60-day money-back guarantee!

Free, No-Obligation Water Test

We provide free, no-obligation water tests to families and businesses — because we believe everyone has the right to know what is in their water!

A One-Stop-Shop For High-Quality Water Systems For Your Family Home Or Business

State-Of-The-Art Home Water Systems

Eliminate harmful contaminants and enjoy clean, soft water with a Kinetico non-electric, high-efficiency, low-maintenance home water solution.

Cutting-Edge Commercial Water Solutions

Discover a market-leading Kinetico commercial water solution from the experts who’ve helped the Silicon Valley and Bay Area’s biggest brands and businesses for 40 years.

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

JB M.

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

N F

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

We’ve Proudly Served The Silicon Valley and Bay Area For Over 40 Years

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

With more than 40 years of experience and trust built up from serving 15,000+ Bay Area customers, we want to keep that going for the next 40 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.

STRICTLY LIMITED TIME OFFER FOR May:

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 to discover how you can get soft, purified water free from up to 99.9% of contaminants!

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

IS YOUR NEIGHBORHOOD’S WATER SAFE?

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)