Certified by De Anza Water Conditioning, Inc • Apr 05, 2026
Water Purification Equipment
Almost four decades ago, founder and president of De Anza Water Conditioning, John Schafer, entered the water treatment business with a California State Contractor’s license, combined with a wide and deep understanding of water— the benefits of its best and the challenges of its worst. To compete in this industry, John knew that he needed to provide customers with unique and special solutions.
He chose to build his business on the strength of Kinetico Water Systems, supported by a highly specialized technical team and supportive, knowledgeable office staff. Our goal is to satisfy the need of each customer, providing a customized solution for each water problem.
We invite you to join our family of more than 10,000 satisfied customers, from San Francisco to Monterey, including residences, apartment complexes, car washes, manufacturers, fitness centers, golf and country clubs, hospitals, hotels and motels, industrial boilers, laboratories, nursing homes, restaurants, universities, custom and town homes, and wineries.
Location
Certified by De Anza Water Conditioning, Inc • Apr 05, 2026
Certified by De Anza Water Conditioning, Inc • Apr 05, 2026
Monday8:00 AM - 4:00 PM
Tuesday8:00 AM - 4:00 PM
Wednesday8:00 AM - 4:00 PM
Thursday8:00 AM - 4:00 PM
Friday8:00 AM - 4:00 PM
SaturdayClosed
SundayClosed
Reviews
4.9
814 reviews
5 stars
791
4 stars
13
3 stars2
2 stars1
1 star7
RW
Ralph Wadensweiler
3 days ago
5.0
Amazing job from start to finish!
We now have outstanding water from our water softener plus a K5 RO system at the sink. The salesperson, Tam was knowledgeable and helpful throughout the process. The technician who did the install was fantastic; rare to see someone these days work so hard, enjoys his job, and have pride in his work. Out of curiosity, we tend to ask a lot of questions which can sometimes intimidate some contractors. Not Aiden, he was super knowledgeable and patiently answered our many questions. He had pride in his work and reveled in finding solutions to some of our complex installation issues. The company and owners were also helpful in making size adjustments to the quoted unit based on our unique situation and scheduling Aiden for another visit to address all our concerns and questions about the systems….. very generous considering they are in San Jose and we are in south Santa Cruz County
- A Great Company
- Great Employees
- Look No Further for Your Water Conditioning Needs!
- A Happy Customer
PW
Po-Hsiang Wang
4 days ago
5.0
Had Benjamin from De Anza Water Conditioning come out to install a water softener and couldn't be more impressed. Professional, efficient, and had everything wrapped up faster than expected. He knew exactly what he was doing and left the workspace spotless. Highly recommend De Anza
GB
Greg B
Apr 4, 2026
5.0
Recently had a whole house water softening system installed by De Anza. Chris E was our installer and did a fantastic job! First and foremost, he was VERY knowledgeable about the system and nuances of its installation to ensure optimal performance. Second, the quality of his work was excellent. Very professional install with great attention to detail. Third, he exhibited great communication. He was easy to speak with and was great about answering any questions I had. And lastly, he was on time and left the worksite clean. Again, very professional. I also want to give praise to Tyler, another technician who helped for part of the install. He was also great to work with and was very professional. Overall, the installation went very well and the system is functioning fantastic. The improvement in water quality is impressive! Highly recommend this team.
GW
Gail Whitehouse
Mar 26, 2026
5.0
Dylan at De Anza Water Conditioning did a thorough annual service check on my Kinetico Q85 water softener, installed one year prior. Dylan was punctual, professional and answered all my questions and concerns along with tips around hard water in my area and occasional air lock in an older house plumbing. I also have a 1 year A200 RO system installed under the kitchen sink and am very pleased with both systems, water quality and
De Anza Water support.
RC
Roro Chen
Mar 24, 2026
5.0
Raoul came by to test our water and walked us through the differences between each system. He was super patient and easy to talk to. Once we scheduled the install, Jose and Jonathan showed up and did an awesome job setting up our water softener and RO system. They were friendly, professional, and made sure to answer all our questions while explaining everything clearly. I’d definitely recommend De Anza Water to friends—it was a smooth, stress-free experience.
Frequently Asked Questions About De Anza Water Conditioning, Inc
What services does De Anza Water Conditioning, Inc provide?
De Anza Water Conditioning offers customized water treatment solutions using Kinetico Water Systems to address various water quality challenges for residences and businesses.
Where is De Anza Water Conditioning, Inc located?
It is located at 355 E McGlincy Ln, Suite H, Campbell, CA 95008, USA.
What are the business hours of De Anza Water Conditioning, Inc?
They are open Monday to Friday from 8:00 AM to 4:00 PM and closed on Saturdays and Sundays.
How can I contact De Anza Water Conditioning, Inc?
You can reach them by phone at +1 408-371-5521 or email at customer@deanzawater.com.
What payment options are accepted by De Anza Water Conditioning, Inc?
They accept American Express, Cash, Check, Discover, Financing, Mastercard, and Visa.
Since when has De Anza Water Conditioning, Inc been in business?
They have been serving customers since 1979.
What areas does De Anza Water Conditioning, Inc serve?
They serve customers from San Francisco to Monterey, including various residential and commercial clients.
What nearby automotive services are close to De Anza Water Conditioning, Inc?
Nearby automotive services include Driven Auto Care, Pumphrey and Co., and Walt's Auto Repair and Air Conditioning, which can assist you if you need vehicle maintenance before or after visiting De Anza Water Conditioning.
Are there any nearby fitness or gym facilities near De Anza Water Conditioning, Inc?
Yes, Sensory Speed and Fitness Movement gyms are nearby, offering options for recreation and fitness around your visit to De Anza Water Conditioning.
What other home-related services are located near De Anza Water Conditioning, Inc?
Nearby you can find Bellows Plumbing, Heating, Cooling & Electrical, BBK Plumbing, and Summit Remodeling Co Inc, providing complementary services like plumbing, HVAC, and home improvement.
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