Artesian Bottleless Water
Verified Pro
8 years online4.9
Water Treatment & Softeners in St. Louis, MO
Compare 30 water treatment & softeners contractors near you in St. Louis and surrounding area with an average rating of 4.6/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated May 22, 2026
Most pros respond within 2–24 hours
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4.211+ years onlineSt. Louis Water
2.325½+ years onlineWater Treatment & Softeners in Nearby MO Cities
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Water Treatment & Softeners in St. Louis, MO
Water treatment and softeners in St. Louis serves a Missouri metro market: Victorian homes throughout Central West End, brick rowhouses, mid-century homes, and commercial properties. Typical jobs include whole-home water softeners (MO water has hardness), reverse-osmosis drinking-water systems, lead service-line testing for older homes, and commercial water treatment. Aging service-lines and MO water hardness drive approach.
Residential water softeners in St. Louis run $1,800-$4,500; reverse osmosis $1,200-$3,500; lead-service-line treatment $5,000-$15,000. Missouri doesn't require state-level contractor license for residential. St. Louis permits apply.
Frequently Asked Questions
- Lead concerns in older St. Louis?
- Some service lines contain lead — RO addresses at point of use.
- Is St. Louis water hard?
- Yes — 8-12 grain hardness common.
- RO for drinking?
- Popular — $1,200-$3,500.
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NeedInstall helps connect customers with local installation professionals across St. Louis 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.