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Don’t Miss Out

Culligan’s Salt-Free Sales Event!

For a limited time, you can get a Culligan Salt-Free Water Conditioner for only $54.95/mo! It’s the same Water You Love without the salt! Act fast, this deal won’t last forever!
Limited time offer. See dealer for details. Credit approval for well qualified buyers.

Trade In & Trade Up – $500 Rebate!

For a limited time, get a $500 rebate when you trade in your old water softener for a NEW Culligan Water Softener or Salt-Free Conditioner! Act fast, this deal won’t last forever!
Limited time offer. See dealer for details.

Rent A System For $9.95/mo. for First 3 Months!

  • Water Softeners
  • Reverse Osmosis Filters
  • Whole House Water Filters
Introductory offer. Brand new accounts only. Standard rates apply after 3 month trial period.

What’s In Your Water?

Get a FREE Water Test!

  • No mailing — fast results!
  • Test any tap in your home
  • NEW flexible sample pickup options
Schedule My Test Today!

Why Culligan?

  • No third-party installation. No big box retailers. Full-Service high-quality water
  • Customized to fit YOUR water needs. Your neighbor’s home, your parents’ home across town — their home water situation may be very different from yours. Culligan works for your tap, your family, your home
  • Security: Limited 20 year warranty, No shipping damage worries, no restocking fees!

The Proof

Why Do Ontario
Homeowners LOVE Us?

Baxter B.
Star Star Star Star Star

Installer was awesome and did a great job! Very happy with the sales consultation and all the savings offered. We took advantage of some great financing options. The family loves it and all our dry skin and scalp problems are gone! Great service. Thanks Culligan!

John P.
Star Star Star Star Star

The service has been great, beginning with our sales associate to, the installation technician, to the service technician and all the customer service representatives… We are treated professionally, with respect and service is always prompt. Very happy with our system and the company we purchased it from as well.

John S.
Star Star Star Star Star

This company is great. I’ve used their service for over a year now. And they continue to give me a lot of bang for the bucks I spend on Water Softener. Can definitely recommend using this company…People in the office are wonderful..


Forever Chemicals In Ontario, CA Drinking Water

Polyfluorinated alkyl substances (PFAS), also known as ‘Forever Chemicals’ have been found in the tap water of various locations across the United States, including parts of California, there’s a valid concern about potential exposure and its long-term effects on public health. Monitoring and managing PFAS contamination in water sources is crucial to ensure the safety and well-being of the community.

PFAS are persistent chemicals that can accumulate in the human body over time through exposure to contaminated water, food, or air. These substances have been linked to various health issues, including liver damage, immune system disruption, thyroid disorders, and an increased risk of certain cancers.

Commercial & Industrial

Are You Losing Operational Costs Because Of Poor Water Quality or Treatment Equipment?

Culligan Ontario C&I has boots on the ground everywhere for local service. We provide quick service – from install to maintenance, reducing downtime and ensuring efficiency.

  • Deionization
  • Industrial Softening
  • Large Scale Filtration/RO
  • Pre-Treatment
  • Storage/Distribution
  • Reclamation/Re-Use

Water Problems?

We Have

Check Out Our Solution Center

Sustainable Solutions

Culligan is committed to a world of better water.

Our organization is dedicated to fostering a more sustainable future. In pursuit of this goal, we are steadfast in our commitment to enhancing our social and environmental footprint, with the world that is superior to the one we currently inhabit.

#1 eco-friendly and sustainable provider of premium drinking water
40 billion fewer plastic bottles used globally each year thanks to Culligan products
13 million homes, offices, and businesses globally using our cleaner, safer, soft water

The Best Water Softeners and Water Filters in Ontario.

With this combination of water resources, Ontario water quality often faces our share of water filtration and treatment issues:

Surface water, like rivers and snow melt, absorb contaminants that can be harmful for consumption as well as annoying around the home. Most of these contaminants include naturally occurring bio materials and minerals. This means water quality can worsen seasonally when warming temperatures contribute to algal blooms, or heighten water sensitivity to microorganism growth.

Ground water presents its own treatment challenges and filtration issues, so Ontario residents with primarily ground water service may see different water problems than those using water from Ontario’s surface water sources. Most often, these manifest as hard water problems which cause buildup on faucets and fixtures, and can be hard on appliances and plumbing.

Ready for better Ontario water? We’re ready to deliver.

We’ve been filtering and softening water in Ontario and Southern California for nearly 80 years, so we’ve seen the difference good water can make. We also know our way around the city’s most aggravating, and damaging, water problems.

Ontario Water Quality

Like other communities in the area, Ontario sources its water from a groundwater aquifer beneath the city for most of its drinking water needs. Imported water is also used to supplement some areas of the city, and for agricultural and industrial purposes.  Groundwater is known for being hard in nature, which means it often contains abnormally high levels of dissolved minerals. This may not come as any surprise to Ontario residents who’ve dealt with hard water symptoms at home like hard water buildup, water spots, metallic aftertaste, sometimes an unpleasant odor, as well as staining or discoloration around faucets and fixtures.

Ontario residents might also be familiar with hard water symptoms like:

  • White, chalky buildup around fixtures, plumbing, and appliances.
  • Cloudy residue and/or water spots that can be hard to clean.
  • Rising utility bills — major appliances like water heaters and dishwashers can’t use hard water effectively, which costs you every month.
  • Coffee, tea, and even recipes can taste or smell different than expected.
  • Dry skin, hair, and nails, since hard water can leach moisture with every shower.
  • Laundry that looks worn or feels stiff and scratchy.

Water Treatment Solutions 

Though hard water is naturally occuring and generally safe to drink, the presence of so many minerals adds stress to plumbing, fixtures, and major appliances at home, in addition to leaving a noticeable taste or smell to the tap. The right solution for your water needs depends on which of these issues matches your home’s symptoms, and what you’re looking to get out of your water. Whatever your water goals are, we’re here to help you find an efficient, effective solution from home drinking water systems to whole home water softeners, and more.   

Californians ourselves, we know the importance of conserving our water resources, and leveraging ways to make the most of them. For Ontario, this often means finding the best ways to make water taste better right at the tap, and helping it work harder all around the home so we do our part to waste as little as possible.

Whatever your Ontario water problems or goals are, Culligan has a solution to fit your home, today!