Culligan of O'Fallon
Your local water experts since 1936
Water solutions you can trust
Backed by over 85 years of experience, your local Culligan Water expert has a wide range of products to address your unique water concerns.
The Culligan Water advantage
As the leaders in water treatment for 85+ years, Culligan Water helps you provide your family with better, safer water at every tap.
100% satisfaction guaranteed
If you are dissatisfied for any reason, Culligan will refund your purchase within 30 days.
600+ locations nationwide
With locally-owned dealerships in communities across North America, Culligan is your local water expert.
#1 in custom water solutions
No one filters, softens and delivers more than Culligan Water.
Culligan of O'Fallon
When you choose Culligan for your water needs, you’re choosing an industry leader with top-rated water treatment equipment, advanced technology and a 100% satisfaction guarantee. Since 1936, Culligan's local water experts have been committed to providing the best service available.
Worried about your water?
Get a FREE water consultation!
Improving your home's water is easier and more convenient than ever with Culligan Water's in-home or virtual appointments.
Culligan Water services
You can count on Culligan service to exceed your expectations. Check out the wide range of services provided by your local water expert below.
Water quality your family can count on
Culligan Water's award-winning technology and service have attracted recognition from some of the most trusted names in product testing and quality assurance.
The Culligan of O'Fallon difference
OK, here it is...straight from the hip and after lots of researching.
Our house was custom built in 1991. It soon became clear after several water based appliance failures, that we HAD to get a water softener. We knew nothing about them at the time. And we were new to the neighborhood.
So, around 1992...we had a mid level system installed. It re...
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R Waring
11/09/2022
I get clean filtered water any time I need it. I don't have to mess with any of the system: like change filters, worry about tank pressure, or any of that. I just schedule for my system to be serviced and it's all taken care of for me. I see it as one less thing I have to worry or deal with in my very hectic life. Thanks!
brighteyes0103
10/07/2022
Michael came out to our residence within the timeframe he said he would be here. He was professional and very knowledgeable. He was patient with the many questions we had. He was also honest in laying out all of our options. Very helpful!!!
Danielle Russell
07/20/2022