Service Locations Counties Serviced by Guthrie & Frey Serving Greater Southeastern Wisconsin Since 1974 Guthrie & Frey provides water softening, conditioning and filtration systems for our customers in Milwaukee, Waukesha and the surrounding southeastern Wisconsin area. Counties Serviced: Waukesha Ozaukee Washington Jefferson Walworth Racine Kenosha Outskirts of Milwaukee Haven't found what you're looking for? Let us help! Request information fast from one of our water conditioning specialists to help you find the right water softener for you. 262.367.1960 Name* First Name* Last Name* Email* Phone*City*Known Water Problems (Check all that apply) Skin & Air is Dry Clothes Are Faded Stains on Sinks & Baths Scale Buildup on Appliances Skyrocketing Water Bill Plumbing Always Needing Repairs Additional CommentsCAPTCHA This iframe contains the logic required to handle Ajax powered Gravity Forms.