Commercial and Industrial Water Treatment

With the support of the entire Culligan International organization and experience in your local market, you will have the best solutions to meet your commercial and industrial water needs.

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Culligan of San Marcos provides commercial & industrial water treatment across numerous industries & applications:

  • C&I Reverse Osmosis
  • C&I Water Softeners
  • C&I Depth Filters
  • C&I Carbon Filters
  • Deionized Tank Exchange

Every commercial water treatment application, whether for a restaurant, hospital, hotel or office is unique. Call or use the contact form to tell us about your water needs.

We can be of service with many industrial applications including High-purity, Deionized, De-mineralized, Lab-grade, and Medical-grade water.


Deionized Water Service, often referred to as “Portable Exchange Deionization” (PEDI), uses tanks containing deionization resin plumbed into your water lines with quick-connect connectors and exchanged as-needed by fresh tanks. This way you have minimal up-front investment by eliminating complicated plumbing and installation and you’re only paying for the high-purity water that you need.

Every application for Ultrapure or Deionized water is unique so please call or use the contact form to let us know more about your water

What our clients say

Gene Whitaker
Gene Whitaker
18:09 31 Jan 24
Culligan's team was great. From salesman to installers they were courteous and informative. Extra shout out to Adrian our install tech for really going the extra mile for us!
Perry Field
Perry Field
17:24 26 Jan 24
Adrian was very nice, he was right on time and was able to answer all of my questions and navigate my issues. Katherine's really nice too, though we only spoke on the phone.
Steven Washburn
Steven Washburn
21:13 14 Dec 23
Very happy with the whole process. From Ethan coming out to test our water & discuss options, all the way through installation by Chris & Kevin, they made everything effortless on my part. All were very professional & efficient. Had a water softener & RO system installed on a rental basis so that all servicing is included and I don't have to worry about remembering adding salt periodically.OMG in the difference in the taste of my water. I always refrained from drinking my tap water, but now its so good I no longer need to purchase bottled water.I give total recommendation to Culligan Water of San Marcos.

Invest in your health by getting a Culligan system today

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World's Most Efficient Culligan Smart HE RO Drinking Water System 100% Satisfaction Guarantee Worlds most efficient NSF Certification | Culligan of San Marcos UL Certified Company in San Marcos, Kyle, Buda, Lockhart, Dripping Springs Water Quality Association Tested and Certified Under Industry Standards Rated & Reviewed HomeAdvisor Pro