Skip to primary navigation Skip to footer Capital Water Softener Madison, Wisconsin (608) 241-1511 About Softeners Filtration Drinking Water Cartridge Filters Commercial Contact You never had it so soft! Get In Touch Our History Since 1936, Capital Water Softener has been the leader in state-of-the-art water conditioning. From residential water softeners, to large industrial water conditioning systems, Capital’s unmatched expertise assures you of the finest products & services available. From world-wide to right next door, our rugged, dependable systems have set the standard for over 65 years. Capital has the system to meet your needs! Our Company With the acquisition of Capital Plating and Machine Co. in 1982 (now known as Water Conditioning Controls) Capital Water Softener, Inc. and Water Conditioning Controls are two companies in one. A water softening company that can state they manufacture their own control valves are few and far between. With valves that are distributed throughout the United States, Canada and Europe, you know we’ve got to be good! Footer Capital Water Softener, Inc For visits, telephone, or mail inquiries: Capital Water Softener, Inc. 4909 Triangle St. McFarland, WI 53558 Phone: (608) 241-1511 Fax: (608) 241-5709 Email: cws@capwater.com Contact Fields marked with an * are required Copyright © 2021 Capital Water Softener