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Hess Bros. and Derby Water Conditioning
Divisions of Iverson & Westfall Plumbing, Inc.
108 W. Mulvane St.• P.O. Box 217 • Mulvane, Kansas  67110
(316) 733-2646 • (316) 788-2475 • (316) 777-1661

We Service Wichita, Derby, Mulvane, and Most of the Surrounding Areas, within a 60 mile Radius of Mulvane

Hard Water? Unpleasant smell or odor in your water? 

Hess Bros and Derby Water Conditioning has the knowledge and equipment to meet all of your water conditioning needs.  With Hess Bros and Derby Water Conditioning you get plumbers, not commissioned sales reps, to diagnose and discuss your water conditioning options with you. 

Hess Bros. & Derby Water ConditioningHess Bros. & Derby Water ConditioningWater Softeners

Reverse Osmosis Drinking Systems

Iron Filtration System

Carbon Filters

Sales & Service


Free Estimates

 Chemical Analysis

Before You Buy... Compare Our Prices!


We install Hellenbrand water conditioning equipment. Hellenbrand offers years of experience in water conditioning equipment and technology that we are excited to bring to this area. For additional information on Hellenbrand you can visit We also service Aquarius Water Softeners.  

Unhappy with your water but not sure of your options?  Call us and we’ll set up a time for a plumber to meet with you in your home or business, discuss your concerns, test your water, and discuss options to meet your needs.