Culligan of Merrillville

You could give your people Culligan Water.

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Rated 4.8⁄ 5  
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Monday: 9:00 AM – 5:00 PMTuesday: 9:00 AM – 5:00 PMWednesday: 9:00 AM – 5:00 PMThursday: 9:00 AM – 5:00 PMFriday: 9:00 AM – 5:00 PMSaturday: 9:00 AM – 5:00 PMSunday: Closed
Areas we serve:
Cedar Lake, Crown Point, Dyer, East Chicago, Gary, Griffith, Hammond, Hebron, Highland, Hobart, Lake Station, Leroy, Lowell, Merrillville, Munster, Saint John, Schererville, Schneider, Shelby, Whiting
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Your Merrillville Water Treatment Experts

We are Culligan of Merrillville, your water technology experts proudly serving east central Lake County. Our dealership specializes in providing water softeners, reverse osmosis systems, water coolers, bottled water, water filtering and softener salt delivery service to area homes and businesses. 


For 65 years, Culligan of Merrillville's mission has been to deliver high-quality water treatment products that will benefit every part of our customers' lives. We hope to raise the quality of life by purifying its most essential element: water.

We've seen about every water problem imaginable and we've solved these problems to deliver the refreshing, clean and pure water that's become our hallmark. Water treated with Culligan softeners or filtration systems will make an impression on you and your household or work.

Culligan of Merrillville is a full-service water treatment company that serves the Merrillville, Saint John, Dyer, Lowell, Crown Point and Cedar Lake area. We offer quality products and expert service, and are involved in every phase of diagnosis and treatment as we improve the quality of water at your home or office. Loyal customers and skilled, hard-working and motivated employees are always the keys to any successful business. As our loyal customers have increased substantially, our staff has also grown. We are thankful to you, our customers, for our growth. We will continue to show you our gratitude to you by holding firm in our strong commitment—by always providing you with the best value, exceptional quality and unparalleled customer service that you expect from us.

Reviews for Culligan of Merrillville and St. John

Overall rating: 4.8⁄ 5

  • Monique Maldonado

    We are in a subdivision of St.John and we noticed plenty of people were using Culligan. We held off for 3 years and regret not doing it sooner. Due to the hard water, our master bath shower was getting ruined. We were constantly buying new shower liners, having to soak our shower head and knobs in vinegar. It was frustrating to look at a freshly cleaned shower and it does not look clean at all. I was also noticing my skin was much more sensitive and itchy with the hard water. We not only got the water softener we also invested in the Reverse Osmosis system. We get to drink filtered water directly from the faucet and haven't bought bottled water since! Overall, they were very knowledgeable about our water and how the system worked. Their team has been very friendly and installed within a couple of days of visiting our home. We are very satisfied with our system!

  • Allison Rosinski

    Super nice staff who were very helpful to my husband and I as we just moved into a house with a well after having had city water our whole lives. The man who came out to check out system clearly loves his job!

  • Noreen Cook

    We finally decided to make the investment into a whole house water softener and reverse osmosis. After researching our options, we chose Culligan Water. The two main reasons we went with Culligan were the reverse osmosis button which eliminated the need to drill a hole in our countertop and the 10 year warranty. The process was super easy and we were able to have the install completed 4 days later. One more perk of Culligan is the salt drop off. We were able to sign up for automatic delivery so I won't worry about running out of salt.

  • Jen Sustek

    Very professional and very courteous team from the sales process to installation to the continued service of the salt delivery... 5 stars!

  • Michael Bartoszak

    I couldn't figure out why my PPM went up so high. Your highly trained technician quickly figured out that our model needed to be replaced. He was so kind that when i was running late for my appointment he patiently waited for me in the driveway. He told me not to rush, i was his last stop for the day. Thank you for your outstanding service. MIchael & Lirie Bartoszak

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