For over four decades, De Anza Water Conditioning, Inc. has proudly served families and businesses throughout the Bay Area and Central Coast. Since 1979, we’ve remained a family-owned and operated company dedicated to delivering exceptional water quality solutions with honest, personalized service.

Our secret to more than 45 years of success is simple: Kinetico Water Systems — the only high-quality systems we trust enough to use in our own homes.

We also provide complimentary water testing for homes and businesses to ensure every system is customized to solve your unique water challenges. The result is more than 15,000 satisfied customers, including homeowners, apartment communities, wineries, hospitals, universities, restaurants, and businesses of every size.