Generation H2O
Verified Pro
3½+ years online5.0(100)
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
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Verified Pro Installers
fresnowaterfiltration.com
PDS Plumbing and Air
Verified Pro
6+ years online4.8(969)
Quality Home Services
Verified Pro
23 years online4.8(1057)
Clean Valley Water: Water Purification Company
Verified Pro
9 years online4.7(286)
Culligan of Fresno
Verified Pro
9½+ years online4.4(187)
Other Businesses in This Area
New Waters
Wellness Water Filtration Systems
~6 years onlineWhole House Water Filtration System
9½+ years onlineYardney Water Filtration Systems
27½+ years online559 Water Filters
5.03½+ years onlineTotal Filtration Services
5.023½+ years onlineValley Water
5.01st Fresno Plumbing
4.9Pure & Fresh Drinking Water
4.8Aqua Golden Line, Inc.
4.714½+ years onlineEcoWater of Central California
4.715+ years onlineFirst Pure Water, Alkaline water
4.7Fresno Ag Hardware
4.723½+ years onlineAroni Water Conditioning
4.46 years onlineAvidWater, LLC
4.38+ years onlineBe Alkaline Water LLC
4.3LifeWaterSolutions
2.3Millennium Water Systems
1.0Water Treatment & Softeners in Nearby CA Cities
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Water Treatment & Softeners in Fresno, CA
Fresno water-treatment contractors in this directory serve homes on Fresno municipal supply (treated surface water from the Sierra, moderately hard at 6-9 grains) and the surrounding Fresno County well-water properties where nitrates, arsenic, and uranium are documented contaminants in some agricultural areas. A whole-home twin-tank water softener for Fresno city water runs $1,800-$3,200 installed. Well-water systems with sediment, iron, nitrate-removal, and reverse-osmosis at the kitchen typically land $4,500-$9,000.
California Department of Water Resources and the State Water Resources Control Board both publish nitrate hot-spot maps for the San Joaquin Valley — Fresno County has multiple flagged areas. Private wells should be tested annually for nitrates and bacteria, with metals testing every 3 years.
Frequently Asked Questions
- What's typical Fresno tap-water hardness?
- Fresno municipal water tests 6-9 grains per gallon (100-150 ppm) — moderately hard. A 32,000-48,000 grain softener handles a typical 4-person home with regeneration every 7-12 days depending on use.
- Should I worry about nitrates in my Fresno well?
- Yes if you're in a flagged agricultural area — California's MCL is 10 mg/L as N. Test annually. Nitrate removal requires anion-exchange or RO; standard softeners do not remove nitrates.
- Is reverse osmosis worth it for Fresno tap water?
- For drinking and cooking, yes — under-sink RO systems run $400-$900 installed and remove >95% of dissolved solids, including residual chloramines and any trace metals. Whole-home RO is rarely justified and wastes significant water.
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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.