
Water Treatment & Softeners in Fresno, CA
Compare 25 water treatment & softeners contractors near you in Fresno and surrounding area with an average rating of 4.4/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 23, 2026
Most pros respond within 2–24 hours
Verified Pro Installers


PDS Plumbing and Air

Quality Home Services

Clean Valley Water: Water Purification Company

Culligan of Fresno
Other Businesses in This Area
New Waters
Wellness Water Filtration Systems
5½+ years onlineWhole House Water Filtration System
9+ years onlineYardney Water Filtration Systems
27½+ years online559 Water Filters
5.03½+ years onlineTotal Filtration Services
5.023+ years onlineValley Water
5.01st Fresno Plumbing
4.9Pure & Fresh Drinking Water
4.8Aqua Golden Line, Inc.
4.714+ years onlineEcoWater of Central California
4.7~15 years onlineFirst Pure Water, Alkaline water
4.7Fresno Ag Hardware
4.723+ years onlineAroni Water Conditioning
4.4~6 years onlineAvidWater, LLC
4.3~8 years onlineBe Alkaline Water LLC
4.3LifeWaterSolutions
2.3Millennium Water Systems
1.0Water Treatment & Softeners in Nearby CA Cities
Other Services in Fresno
About Water Treatment & Softeners in Fresno
Water treatment covers filtration, softening, and purification systems for homes and businesses. Common solutions include whole-home water softeners, reverse osmosis drinking water systems, and iron/sulfur filters. The right system depends on your water source and specific contaminants.
Typical costs: Under-sink reverse osmosis systems run $300–$800 installed. Whole-home water softeners are $1,500–$4,000. Iron filters and multi-stage whole-home systems are $2,000–$6,000+.
- Whole-home water softener installation
- Reverse osmosis drinking water system
- Iron and sulfur filtration
- UV water purification
- Well water treatment systems
Water treatment installations that modify plumbing may require plumbing permits. Well water systems may need additional environmental or health department approval.
Frequently Asked Questions
- How much does water treatment & softeners cost in Fresno?
- An under-sink reverse osmosis system runs $300–$800 installed. A standard water softener is $1,500–$4,000 including installation and plumbing connections. Well water treatment systems with multiple stages (sediment, iron, softener, UV) can run $3,000–$8,000. Annual maintenance (filters, salt) is $100–$300.
- How do I find a reliable water treatment & softeners contractor in Fresno?
- Start with a water test — a good installer will test your water before recommending a system. Ask about ongoing maintenance costs (filter replacements, salt, UV bulb changes). The cheapest system isn't the best deal if filters cost $200 every 6 months.
- Do I need a permit for water treatment & softeners in Fresno?
- Simple point-of-use filters don't need permits. Whole-home systems that tie into the main water line may require a plumbing permit. Well water treatment systems may need health department review in some areas.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Fresno and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.