2026 Edition · Reviewed Annually
Hard water, iron staining, and untreated wells are everyday problems in Missouri homes. We curate the providers who solve them, and hold each one to the same five criteria.
Photographs from the 2026 review, courtesy of Jones Air & Water.
The Directory
Five providers reviewed for the 2026 edition, listed in alphabetical order.
Local option: Jones Air & Water is a family-owned water treatment company in the St. Louis area that starts with a free in-home water test. Call (636) 899-1040.
One of the most widely recognized names in residential water treatment, operating through locally run dealerships. Product lines include water softeners and reverse osmosis drinking water systems.
Coverage Missouri service areas vary by local dealership.
Contact through the brand's local dealer network.
A manufacturer of water softeners, conditioners, and reverse osmosis drinking water systems. Products are sold and installed through authorized local dealers.
Coverage Missouri service areas vary by local dealership.
Contact through the brand's local dealer network.
An Ohio-based manufacturer known for its multi-function WaterMax treatment system, with reverse osmosis drinking water options. Equipment is distributed through independent authorized dealers.
Coverage Missouri service areas vary by local dealership.
Contact through the brand's local dealer network.
Known for non-electric, twin-tank water softeners powered by moving water rather than a plug-in timer. Systems, including reverse osmosis drinking water units, are sold and serviced through authorized dealers.
Coverage Missouri service areas vary by local dealership.
Contact through the brand's local dealer network.
A national home water treatment brand offering water softeners and reverse osmosis drinking water systems. Sales, installation, and service are handled by local authorized dealers.
Coverage Missouri service areas vary by local dealership.
Contact through the brand's local dealer network.
Find by need
Four common Missouri water problems, what actually fixes each one, and which listings fit.
Much of Missouri draws water through limestone, so scale on fixtures, spotted glassware, and dry skin are common complaints. A properly sized water softener removes the calcium and magnesium behind all three. Have your hardness tested before you buy, because sizing depends on the actual grains per gallon.
Listings that fit Every provider in this directory installs softeners: Culligan, EcoWater, Hague Quality Water, Kinetico, and RainSoft offer softening through their dealers. Jones Air & Water, the local option above the directory, also installs softeners and includes free in-home hardness testing.
For better tasting water at the kitchen tap, a reverse osmosis system polishes a single faucet rather than the whole house. RO removes most dissolved solids, which is why it is the standard answer for drinking and cooking water. It pairs well with a softener, which protects the RO membrane from scale.
Listings that fit All five listings carry the RO specialty and offer RO drinking water systems through their local dealers. Jones Air & Water, the local option above the directory, also installs RO systems.
Private wells are the homeowner's own responsibility, and untreated well water can carry hardness, iron, sulfur odor, and sediment all at once. Treatment starts with a test, then equipment matched to what the test finds. Expect a different setup than a city-water home would need.
Listings that fit None of the five listings carries a dedicated Wells specialty, so ask the local dealer whether they design systems for private wells before booking a visit. Jones Air & Water, the local option above the directory, works on private wells and starts with a free in-home test.
Orange streaks in tubs and toilets and a metallic taste point to iron, which is common in Missouri groundwater. Standard softeners handle only small amounts, so meaningful iron usually calls for dedicated iron filtration ahead of the softener. A test tells you the level and the right fix.
Listings that fit None of the five listings carries an Iron specialty tag, so ask any dealer to test for iron before quoting. Jones Air & Water, the local option above the directory, handles iron and measures it in a free in-home test before anything is quoted.
Free water test
Tell us where you are, and Jones Air & Water will call you back to schedule a free in-home water test.
More cuts
We are splitting this directory into narrower need-based and metro-based editions. They will appear here as each one clears review.
Questions
Every listing is reviewed against the same five criteria on our methodology page: local ownership, response time, included testing, transparent pricing, and range of specialties. Listings appear in alphabetical order. The directory does not rank providers or award seals.
Much of Missouri's groundwater moves through limestone, which loads it with dissolved calcium and magnesium. That is what makes water hard, and it is why scale on fixtures, spotted dishes, and shortened appliance life are frequent complaints across the state. A properly sized water softener is the standard fix.
A softener treats every tap in the house by removing the hardness minerals that cause scale. A reverse osmosis system treats one tap, usually in the kitchen, and removes most dissolved solids for better drinking and cooking water. Many Missouri homes run both, with the softener protecting the RO unit.
Yes. Softener sizing, iron filtration, and well water treatment all depend on measured numbers, not guesses. Jones Air & Water, the local option listed above the directory, includes free in-home water testing, and included testing is one of the five criteria we check every provider against.
OwnersFirm publishes this site, and some providers mentioned here work with us. The full review process is published on our methodology page.
Two publications we point readers to, neither of which sells equipment. The Home Water Report is a consumer magazine about the water in your home: softening, filtration, testing, and buyer guides written for homeowners rather than plumbers. Healthy Home Headlines covers the wider healthy-home picture, drinking water alongside indoor air and moisture, without the alarm. Read either one first and you will ask sharper questions on every quote call.
