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.
Whole Home Water Filters
RO Drinking Water Systems
Bottled Water & Coolers
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.
Free Water Test
Stop wondering about what may be in your water. Your local Culligan expert can provide a complete analysis for a wide range of contaminants.
Water & Salt Delivery
Culligan delivery is the easiest and most convenient way to get better water in your home.
Coupons & Specials
Don't miss out on the limited-time deals happening in your local area.
Service & Repair
Keep your water softener and filtration systems running at peak performance.
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
Excellent customer service and their product is top notch. 5 star experience for this customer!
We have had Culligan for 20 years and have always been impressed with their service and their eagerness to please their customers.
Can't stand tap water where I live. Culligan has been fantastic. I ran out of water like 7 days early and they made an out of route delivery to satisfy my needs. Ofallon office has always been polite and accommodating. Delivery fee is a reasonable 3 dollars. My only complaint is the bottle deposit and water is slightly expensive when compared... Read More