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50+ Years
experience
Trusted Water Treatment Solutions in Plymouth, WI
Culligan Water Systems has been a trusted leader in water treatment solutions since 1936, delivering innovative and reliable services to residential and commercial clients across southeast Wisconsin. With over 85 years of combined industry experience, our team specializes in advanced water softening, filtration, and purification systems, including cutting-edge technologies like the Culligan Connect App for 24/7 monitoring. We pride ourselves on personalized service, offering free water testing, customized solutions, and a 100% satisfaction guarantee.

Backed by 600+ locations nationwide and EPA-certified laboratory capabilities, we ensure every client receives expert guidance and support. Our commitment to quality is reflected in our patented products, such as the High Efficiency Water Softener, and our dedication to community involvement through philanthropy and industry leadership. With locally-owned dealerships and a focus on sustainability, we provide smarter water solutions that protect both your family and the environment.
Services
Water Softeners Whole Home Filters Reverse Osmosis Systems Bottleless Coolers Bottled Water Services Free Water Testing PFAS Reduction Solutions Commercial Water Treatment Salt Delivery System Maintenance
Details
  • Year established: 1936
Highlights and features
  • We have over 85 years of experience in water treatment solutions.
  • 100% satisfaction guaranteed with all products and services.
  • EPA-certified laboratory for in-depth water testing and analysis.
  • Locally-owned dealership with experts since 1936.
  • Award-winning technology, including patented High Efficiency Water Softeners.
What people say
Knowledgeable and professional Amazing service Clean, filtered water Highly recommend 30+ years of trust
Services
Water Softeners
Culligan water softeners eliminate hard water minerals like calcium and magnesium through ion exchange, protecting plumbing, appliances, and skin. Our High Efficiency models reduce salt and water usage by 46%, with smart technology for remote monitoring. Systems include the Aquasential Select Series and Salt-Free Conditioner, tailored to local water conditions in southeast Wisconsin.
Whole Home Filters
Whole home filtration systems address contaminants like chlorine, iron, and PFAS across entire households. Multi-stage processes reduce sediment, acidity, and bacteria, ensuring cleaner water for showers, laundry, and appliances. Customizable options include UV treatment and PFAS-specific filters, with annual maintenance to sustain performance and extend system lifespan.
Reverse Osmosis Systems
Reverse osmosis systems reduce up to 99% of contaminants, including lead, arsenic, and viruses, through semi-permeable membranes. Culligans models feature tankless designs, filter change alerts, and mineral-enhancing stages for improved taste. Certified to meet NSF standards, these systems provide unlimited safe drinking water while minimizing plastic bottle waste.
Bottleless Coolers
Bottleless coolers connect directly to water lines, offering hot, cold, and sparkling water options with multi-stage filtration. Units like the Ascent CT reduce lead and microplastics, eliminating plastic bottle dependency. Energy-efficient designs save costs and space, ideal for offices, schools, and healthcare facilities requiring hygienic, hands-free hydration.
Bottled Water Services
Culligans bottled water services provide 5-gallon bottles of reverse osmosis-filtered water, delivered directly to homes and businesses. Coolers include bottom-load and countertop models with hot and cold dispensing. The program combines convenience with quality, adhering to IBWA standards and offering flexible rental plans for consistent hydration needs.
Questions
What water treatment services does Culligan of Plymouth offer?
We provide water softeners, whole-home filters, reverse osmosis systems, bottled water coolers, and free water testing for residential and commercial clients.
How does a water softener work?
Water softeners use ion exchange to remove calcium and magnesium, preventing scale buildup and improving appliance efficiency through resin bead technology.
Are Culligan water systems environmentally friendly?
Yes, our systems reduce plastic waste with bottleless coolers and efficient filtration, lowering energy and water consumption compared to traditional methods.
Do you offer financing options?
Yes, we partner with third-party vendors to provide flexible financing and rental plans for water treatment systems.
Can Culligan address PFAS contamination?
Yes, our NSF-certified whole-home PFAS filters reduce up to 99.9% of forever chemicals, ensuring safer water for households.
What maintenance is required for water systems?
Annual inspections, filter replacements, and sanitization are recommended to maintain optimal performance and longevity of your water treatment equipment.