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About Us
Walter Thonen Jr. (known as Sonny) started out on his own in 1972, doing mostly new homes for builders in the Mulvane, Derby and Clearwater areas in Kansas branching out later into commercial work. With the addition of five sons to the business, we are truly a family run and operated business based on Biblical principles of honesty and integrity. 

We have 44 years of experience in concrete flatwork, both private and commercial. Because we are foundational, we have extensive knowledge in reading blueprints, job site preparation and coordination and know how to make our job run smoothly and work compatibly with all other subcontractors on the job.  In working for individuals or general contractors, we will not cut corners or have any hidden charges after the job is done.  We do not require any prepayments, and we do not take credit cards.
Copyright © 2009 Thonen & Sons Construction. All Rights Reserved.
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