The Service Is In Our Name – The Quality Is In Our Product

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Clean Water for Your Entire Property With Water Filtration Company in Janesville, WI

Family Owned and Operated!

Residentially, we serve homes and businesses in the Rock, Dane, and Walworth, WI area, and serve our wholesale customers all over the U.S. Since 1978, customers have relied on Addie Water Systems with revolutionary water treatment services. We offer better water treatment services at competitive prices! Taste the difference in what we can do for your water! We commit ourselves to assisting clients in moving to filtered, high-quality water.

We provide various water conditioning products, including reverse osmosis drinking systems, iron removal systems, water softeners, water heaters, and a variety of different water filtration systems. Let us help you choose the ideal system to meet your requirements and provide clean, enduring, and well-conditioned water.

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Addie Water Systems Keeps Your Water Clean!

After 44+ years in business with Addie Water Systems, better water is easily accessible, reasonably priced, and backed by family-driven hometown support that big water treatment dealers cannot provide.

Choose Efficiency

We Transform Ordinary Tap Water Into Clean

  • 99%

    Of Lead And Asbestos

  • 96%

    Of Chlorine, Chloramines

  • 64%

    Of Other Harmful Contaminants

Frequently Asked Questions

  • As a water filtration company in Janesville, WI, we help resolve common water concerns such as sediment buildup, chlorine taste or odor, iron staining, and pH imbalance. These issues can affect water clarity, taste, and overall usability in homes and businesses.

  • Yes, we service both residential & commercial water heaters in Janesville, WI, based on system type, capacity, and usage needs. This includes diagnosing issues, maintaining performance, and installing properly sized tank or tankless units for consistent hot water delivery.

  • A water softener in Janesville, WI, removes hardness minerals like calcium and magnesium from the water. This helps reduce scale buildup on plumbing, improves soap performance, and supports longer appliance life in homes and businesses using municipal or well water.