Atherton Water Testing



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

For four decades, De Anza Water Conditioning 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! Read More
How Good is Atherton Water?
In Atherton, a smaller percentage (approximately 20%) of your water supply comes from the Bear Gulch Reservoir, while a larger portion comes from the Hetch Hetchy. It’s also possible that your primary water source is a local well. Atherton water quality can vary wildly from street to street, even house by house.
Depending on your water source, your water may have an unpleasant smell or taste. The EPA overall water quality rating for Atherton is 45 out of 100 (with 100 being the best possible water quality).
Some Atherton water may be exceptionally hard —meaning high in calcium carbonate, magnesium, and even iron in some cases—which is evidenced by white deposits on your pipes, water heater, and on your dishware. If left unattended, hard water can create blockages in your pipes and can strain your appliances, shortening their longevity. Within a few short years, hard water can completely destroy your water heater.
Solutions Through De Anza
De Anza Water Conditioning offers home water filtration systems and drinking water systems, which can soften your water and provide your home with clean, fresh drinking water. As a family owned business, we seek to cultivate lasting positive relationships with both our customers and our partners. For over 40 years we’ve been an authorized and active dealer of Kinetico Water Systems, the industry’s leading water quality solutions provider. Our Kinetico partnership allows us to offer our local customers premium products, such as water softeners, water filters, and reverse osmosis drinking water systems, just to name a few.
Don’t Underestimate the Negative Impact of Hard Water
Oftentimes, it is difficult to recognize and assess the effects of regular hard water use. It might take the premature wreckage of a water heater or some other attention-grabbing, high cost calamity before a typical water consumer takes notice.
However, if you have an eye for detail, then you can spot the impacts of hard water usage in everyday household activity. In Atherton, washing your clothes with hard water can leave them dulled in color and more susceptible to wear and tear. Your bathtub and shower will be more likely to develop dirty rings and residues that are extremely difficult to clean. Even your own hair and skin will be duller, dryer, and less healthy looking over time.
Make Life Easier, Healthier, and More Beautiful
De Anza Water Conditioning, through a partnership with Kinetico, sells a combination water filter/softener that completely removes unwanted dissolved solids in Atherton water. In addition to removing the calcium and other minerals that cause hard water, the combination water filter/softener from Kinetico also removes chlorine and chloramine, which, like hard water, can fade clothes and dry out hair and skin.
The leading-edge, patented filtration and purifying solutions from Kinetico use no electricity, but instead draw from the kinetic energy (the flow) of the water being serviced. For such impressive systems, they are incredibly simple to use and require very little upkeep. Furthermore, the Kinetico systems are confidently sold alongside extremely thorough warranties. Should you encounter any problems with your equipment, you’ll never be without support.
Atherton’s Comprehensive Water Solutions Provider
Whether it’s hard water, cloudiness, odor, or sediment deposits, or even iron or sulfuric contaminants, De Anza Water Conditioning has an effective, simple, affordable, and guaranteed solution for you. We’re happy to offer free consultations and water tests in Atherton and the surrounding areas.

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 Californians 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!
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 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 Bay Area’s biggest brands and businesses for 40 years.
We’ve Proudly Served The 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:
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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.
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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.
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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 October:
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)