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Don’t Miss Out

Softener + RO For Only $75.90/mo.

For a limited time, you can get Culligan’s Full Water Treatment Solution — a softener and RO filter — for just $75.90/month!

$300 Off Whole House System!

Want to enjoy great-tasting Culligan Water? For a limited time, you can enjoy a Culligan Whole Home system for $300 OFF! Act fast, because this offer won’t last forever!

Rent A System For $14.95/mo. for First 3 Months!

  • Water Softeners
  • Reverse Osmosis Filters
  • Whole House Water Filters
$14.95 for the first 90 days then standard rates apply. Promotional price includes a $5 delivery fee per month. Limited time offer. Dealer participation may vary.

What’s In Your Thousand Oaks 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!

The Proof

Why Do Thousand Oaks
Homeowners LOVE Us?

Sandra Y.
Star Star Star Star Star

I love the water how it fills to my skin. It’s so soft , my kids love it to. The service is great as well. I would recommend it to my friends and family.

Andrew A.
Star Star Star Star Star

Just had a water softener installed and a few days later, noticed a leak near the drain connection. Called my sales rep, Nick, on a Sunday and Chris was at my house within an hour and had it fixed within 30 minutes. No charge to me and no questions asked. Nick called shortly thereafter to check in and make sure everything was copacetic. I’m very impressed with the rapid response and professionalism of this crew!

Justin H.
Star Star Star Star Star

As a customer for a year, Culligan has been great this whole time. The water they provide is top notch. Thank you Devon Lorenzini for signing me up for this service. I recommend Culligan for anyone looking for a great water service.


Water Problems?

We Have

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The Best Water Softeners and Water Filters in Thousand Oaks.

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

85% of the City’s water supply in 2021 was from the State Water Project. This surface water is imported from Northern California, which originates at Lake Oroville. The water then flows through the Sacramento River Delta system and is then transported via the California Aqueduct to Southern California. It is treated, filtered and disinfected at the Metropolitan Water District’s (MWD) Jensen Filtration Plant in Granada Hills. 14% of the City’s water supply in 2021 was from a blend of the Colorado River and State Water Project. It is treated, filtered and disinfected at the Metropolitan Water District’s (MWD) Weymouth Filtration Plant in La Verne.

The supply is then piped directly to the City through the transmission facilities of the Calleguas Municipal Water District (Calleguas). Should this supply be interrupted by general maintenance, earthquake or other calamity, Calleguas can also deliver water to the City from their Lake Bard Water Filtration Facility and Reservoir located in the hills between Thousand Oaks and Simi Valley. For several weeks out of the year, the remaining 1% of the City’s water supply in 2021 came from the Calleguas Lake Bard Water Filtration Facility and Reservoir.

Is Thousand Oaks Tap Water Safe To Drink?

Environmental Working Group detected 15 contaminants in Thousand Oaks tap water where levels reached above their recommended guidelines. This includes arsenic, chloroform, HAA5, nitrates, radium, TTHMs, and uranium.

For the full water quality report for Thousand Oaks, click here.