Water Filtration Cost in 94941 (Mill Valley, CA) — 2026 Pricing
Homeowners in zip code 94941 pay $200–$4,000 for water filtration. Under-sink $200–$500; whole-house $1,500–$4,000. Get your free quote today.
$200–$4,000
Water Filtration in 94941 • Updated July 2026
Water Filtration in Zip Code 94941
Water filtration system installation including whole-house filters, water softeners, reverse osmosis systems, and under-sink filters. Improve water quality throughout your home. Our licensed contractors provide fast, reliable service throughout the 94941 area in Mill Valley, Marin County.
Call (916) 476-7689 for an immediate quote or fill out the form below for a detailed estimate.