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.
Many customers praised the professionalism, friendliness, and knowledge of the technicians, highlighting their ability to answer questions and provide thorough explanations.
Installation Experience
Customers reported smooth and efficient installation processes, with technicians being punctual, respectful, and attentive to detail.
Product Satisfaction
Overall satisfaction with the Kinetico water softener and filtration systems was noted, with many customers experiencing immediate improvements in water quality.
Communication
Pre-appointment communication and follow-up after service appointments were frequently mentioned as outstanding, contributing to a positive customer experience.
Long-term Reliability
Several long-term customers expressed trust in the company, citing consistent quality of service and product reliability over many years.
DJ
Daniel Jang
1 day ago
5.0
I vetted a whole bunch of water softener companies, and De Anza Water’s product resonated with me the most. Trust me, I love electronics and IoT devices more than the next guy - I even have a toaster that’s connected to WiFi, but I did not want to have to be bothered changing settings of a water softener if we were ever going to be away from home for an extended period of time.
Raoul did an excellent job making a compelling case to go with them, and Aidan did an awesome job installing the water softener as well as the K5 RO. My wife and I cannot be more pleased with the performance of the water softener and RO.
Listen, you don’t need to hear more from happy customers like myself; just do yourself a favor and schedule a consultation with them and see for yourself.
VV
Venki Venkatesh
6 days ago
5.0
Mario from De Anza water conditioning was very good. He went about his job meticulously. He check the hardness of the water in every section of the house and identified a long standing issue which others had not found. Thank you!
JS
J S
Jan 4, 2026
5.0
We’ve been using De Anza Water’s purifier and softener, and the results have been excellent. The water tastes great, and the softener has made a noticeable difference in our skin, hair, and clothes, which is especially important since we have hard water.
We reached out to them with our queries and they were quick and professional in their communication. They offered free water analysis at your home. Raoul did a great job during the initial consultation. He clearly explained the systems, walked us through our options, and patiently answered all our questions as first time buyers.
They gave us nearest available spot for the installation. Aiden did all the installation with great care. Though installation took a while, Aiden was extremely thorough and professional the entire time. He worked patiently, paid close attention to detail, answered every question we had, and shared helpful tips on usage and maintenance. His depth of knowledge and care were impressive.
Overall, we are very happy with our experience with De Anza Water and highly recommend their services.
RE
Randy Enos
Dec 22, 2025
5.0
My wife and I have been satisfied customers of DeAnza Water Conditioning since 1997. The Kinetico water softener has been rock solid and we always experience great service from their entire team. Sonny was no exception on our annual service appointment, last week. The pre-appointment communication regarding arrival time as well as during and after the service appointment was outstanding. Sonny was pleasant, professional and even filled our low brine tank with some extra salt he had on his truck. Thank you!
HP
Harshad Parekh
Dec 15, 2025
5.0
We had our Kinetico water softner installed last week, and the entire experience was very smooth. We were most impressed with the technician, Dylan, who performed the installation. He was a thorough professional -- clear communication, positive energy, and doing right by the customer attitude. Our experience with other members, Tam and Jennifer, has also been very positive. It's just been a week since the system was installed, but seems like a worthwhile investment so far.
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.