Culligan of O'Fallon

We know
O'Fallon water.

Local expertise with industry-leading technology.

Backed by over 80 years of experience, your local Culligan Man has the perfect solution for your family's water concerns.

Water Softeners

Say goodbye to dry skin, spotted glassware and high water heating bills when you rent or buy a Culligan® Water Softener!

Water Filters

Get rid of rotten-egg smells, cloudy sediment and acid stains when you rent or buy a Culligan® Water Filter!

Whole Home Systems

Skip hard water spots, chlorine smells and rust stains when you rent or buy a Culligan® Whole Home System!

Drinking Water Systems

Never worry about chlorine, "rotten-egg smells" and foul tastes when you rent or buy a Culligan® Reverse Osmosis Drinking Water System!

Bottle-Free Coolers

Take care of problem drinking water and bottle storage issues when you rent a Culligan® Bottle-Free Cooler!

Bottled Water Coolers

No more drinking and cooking with unpleasant tap water when you rent or buy a Culligan® Bottled Water Cooler!

Whole Home Filtration System

With a Culligan Whole Home Filtration System you can be sure you are getting the best quality water at every tap in your home.

Whatever your water problem may be, Culligan systems filter out the bad so you can enjoy the good. Contact your Culligan Man today to schedule a Free Water Test and learn how you can improve the water throughout your home.

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Special Offers

See our current Culligan water systems specials and enjoy healthy, high-quality water with Culligan. Better deals on better water.

Water Systems

Good, clean drinking water is essential to everyone's health. Culligan has the right water system for all your water treatment needs.

Free Water Test

Don't wonder what's in your water - your Culligan Man can tell you. Contact us for a free water test!

Latest Blog Posts

How a Whole-Home Water Treatment System Can Help With Your Spring Cleaning

From deep-cleaning your floors to reviving your garden, spring home improvements start with your water. So why wouldn’t you use...

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...

What Clients Say

Very friendly staff! They know who I am when I call. Always in time with my delivery and extremely helpful when I need to change things around. I’ve been using their services going on 5 years and never once had a problem!

Jenga G

- Culligan Customer