The right water starts with understanding yours
Sierra Valley Water is a California-based water treatment company dedicated to helping homeowners and businesses improve their water quality through professional testing, reliable filtration solutions, and ongoing service.
A local team, one promise: water you can trust
We provide residential and commercial water treatment solutions — whole-house filtration, water softening, reverse osmosis, and alkaline drinking water systems — from our base in Hayward, serving customers throughout California.
We believe the right solution begins with understanding your water quality and your individual needs. That is why every relationship starts the same way: a free consultation and a free water test at your property, before anyone talks about systems.
Our goal is practical water treatment, professional service, and long-term customer relationships — not a one-time sale.
Purity you can taste
The standard every Sierra Valley Water home is held to.
Every skill your water needs, in-house
Our team brings together business owners, sales and marketing representatives, plumbers, installation personnel, and service professionals — so you are supported through the whole process, by people who know your system.
Leadership & Owners
The people accountable for every recommendation, quote, and promise the company makes.
Water Consultants
Sales and marketing representatives who test your water, explain the results plainly, and design your solution.
Plumbers & Installers
Installation personnel who fit your system professionally and walk you through it before they leave.
Service Professionals
The team behind filter changes, membrane replacements, servicing, and repairs — long after install day.
Based in Hayward
2784 Sunset Dune Way, Hayward, CA 94545 — one office, serving homes and businesses throughout California.
Here When You Need Us
Monday–Friday, 9:00 AM–5:00 PM (California time). Call +1 (925) 460-5600 or email Aaronramish@aol.com.
Test first. Recommend second. Sell last.
Free Consultation
We listen to your water concerns — taste, stains, dry skin, scale — and what you want fixed.
Free Water Testing
A technician tests the water at your property and explains the results in plain language.
Recommendation
A system matched to your water and your property — never a one-size-fits-all box.
Installation
Professional installation, set-up, and a full walk-through before we leave.
Support
Filter changes, servicing and repairs — we stay with your water for the long term.
Meet us at your tap — for free
Book a free water test and consultation anywhere in California.