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Latest Blog Posts

What is Salt-Free Water Conditioning?

What is Salt-Free Water Conditioning? Salt-free water conditioning can be a great alternative to traditional water softening. Because it also...

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Water Problems and Culligan Solutions

Water Problems and Culligan Solutions Everyone has water problems. Whether its scale buildup, staining or bad-tasting drinking water. And as...

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What Clients Say

Service is top notch! You take care of everything, even the smallest of details. Thank you!

George Reichert

- Culligan Customer

Culligan of O'Fallon

Since 1936, Culligan of O'Fallon's mission has been to deliver high-quality water treatment products that will benefit every part of our customers' lives. We hope to raise the quality of life by purifying its most essential element: water.

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Products

Water Softeners

Water Filters

Whole Home Systems

Drinking Water Systems

Bottle-Free Coolers

Bottled Water Coolers

Bottled Water

Commercial & Industrial

Help Guide

Water Treatment FAQ

Water Terms

Water Quality Standards

Timer Settings & Manuals

Softener Bypass Videos

Hydration Calculator

Services

Free Water Test

Coupons & Specials

Service & Repair

Water and Salt Delivery

About

Culligan of O'Fallon

Culligan History

Why Choose Culligan?

Locations in: O'Fallon MO

Proudly serving: O'Fallon MO | Saint Charles MO | Saint Peters MO | Wentzville MO | Lake St. Louis MO | Dardenne Prairie MO | Troy MO | Warrenton MO | Weldon Spring MO | Cottleville MO | St. Charles MO | Warren MO | Lincoln MO And Montgomery County Areas.

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877-984-1822

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