Welcome to Culligan of Ontario, your water softening and drinking water experts in the Inland Empire

Culligan of Ontario is your local water expert in the Inland Empire. We have the equipment and experience necessary to serve all of your water needs including water softeningreverse osmosis drinking watersalt-free solutionsbottle-free coolers and water filtration systems for both residential and commercial properties.

With over 65 years of experience in the Inland Empire we understand the region’s water conditions. Our service territory covers Ontario, Riverside, Rancho Cucamonga, Chino Hills, Pomona, Claremont, and all of the Inland Empire. Give your Ontario Culligan Man a call today to make your water the best it can be. 

Inland Empire Water Softeners

Does your home have hard water? Some signs are easy to notice- soap scum on the shower door or lifeless hair. Other signs may be harder to notice- brights fading in the washer or the corrosion building on the inside of your pipes. Hard water wreaks havoc on your home in more ways than you probably thought. Luckily, Culligan of Ontario is dedicated to tackling the toughest hard water that the Inland Empire has to offer.

To discover which Culligan Water Softener is right for you visit our water softener solutions page.

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Free Water Testing In The Inland Empire

Find out what's in your water with a FREE in-home water test. Your Inland Empire Culligan Man will help you determine whether or not your home needs a Culligan Water Filtration System or Culligan High Efficiency Water Softener.

Simply fill out the form above to be contacted by your Culligan Man in the IE or just call (909) 979-3150. 


Hard water was ruining our laundry and making us clean our bathroom a more than we should have had to. Calling Culligan for a water filtration system has paid off big time. Taking a shower has never felt better!

Jackson S.
Riverside, CA