Good reviews keep flowing in.

Free Water Test


We’re proud of our services and don’t like to brag—but
we like it when our customers do.

Here’s what our customers have to say…

Called the office to arrange for my filter replacement. Office staff (Lana, hope I got her name right) was courteous, and she called me to arrange for an earlier slot when it became available.

Patrick came to replace my filters and was very patient in showing me the process when he knew that I wanted to take a video of it. He even wrote down the instructions as detailed as he could as it turned out to be too dark under the sink to video record the process. Very impressed with his patience, familiarity and knowledge of their products.

We now appreciate our crystal clear & odorless water even more than before!
Karine L.
Cupertino, CA
Again, I've lucked out with vendors with a new property I recently purchased. I knew beforehand that I'd most likely work with De Anza Water Conditioning because my in-laws have enjoyed their system for many years without any concerns.

John met with me for a free estimate and explained in detail the science & technology behind their water softener/purification systems, answered any of my silly questions, and then followed-up with me afterwards to see if I had any questions. Upon approval of the contract, I spoke with Ian to arrange a time to meet with Chris the day before the install (he reviewed to make sure they would have all of the right materials - I have a rather large job). Promptly the following day at 8am the installers Patrick & Thomas arrived to get the project going.

Not only has every single person I've interacted with at De Anza been professional and pleasant to speak with (which lets face it - that alone is a blessing!), but I'm extremely happy with how efficient they were with their work and the end result. Patrick was particularly very helpful explaining to me the nuances of each component of the system and how best to make sure I enjoy clean and pure water for many years to come without any unexpected service issues!
Daniel P.
San Jose, CA
We are very pleased with the product and the installation. Yes, it's pricey. However, it exceeds our expectation and we feel we have received more than enough value for the money we spent. Mike Munns, the installation tech, was courteous, efficient, and cleaned everything up when he was done. The installation is very professional, including patching the drywall that was removed to access the pipes. It's unfortunate that folks have had problems with John and/or his company; we are very pleased and would highly recommend them to anyone thinking of getting water conditioning equipment.
Jay M.
San Jose, CA

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