Wall Systems, LLC.  was founded in 1979 by George Klien in Cedarburg, WI. Today our office is located in Oshkosh, WI. Since 1979, Wall Systems has provided customers with a wide selection of metal wall and roofing products, professional installation of metal wall and roofing panels, decking, and related secondary structural and finish elements. Our services include material sales, installation, professional engineering, design, custom fabrication, and project management.

Wall Systems specializes in heavy industrial and commercial projects. Industries served include, mining, chemicals, heavy manufacturing, steel production, retail distribution centers, and public commercial buildings.

Wall Systems has completed numerous projects across the United States, China, and Australia.

Today Wall Systems’ corporate headquarters is located in Oshkosh, Wisconsin. Directions and contact information is available on our Contact Page. See our project gallery and project portfolio for examples of our work.