Culligan of O'Fallon

The local water experts
Providing cleaner & softer water for every faucet in your home since 1936
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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.
Water Softeners
Whole Home Water Filters
RO Drinking Water Systems
Bottleless Coolers
Bottled Water & Coolers
Did you know that the EPA recently updated PFA regulations?
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The Culligan advantage
As the leaders in water treatment for 85+ years, Culligan helps you provide your family with better, safer water at every tap.
Satisfaction Guarantee
100% satisfaction guaranteed

If you are dissatisfied for any reason, Culligan will refund your purchase within 30 days.
Location Markers
600+ locations nationwide

With locally-owned dealerships in communities across North America, Culligan is your local water expert.
Ribbon
#1 in custom water solutions

No one filters, softens and delivers more than Culligan.
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.
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Worried about your water?

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Improving your home's water is easier and more convenient than ever with Culligan's in-home or virtual appointments.
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Water quality your family can count on
Culligan's award-winning technology and service have attracted recognition from some of the most trusted names in product testing and quality assurance.
 
Satisfaction Guarantee WQA Tested and Certified NSF UL