Since our founding in 1924 as a humble coal and building materials hauling business, Negwer Materials has grown to become Missouri and Illinois’ leading construction supplies provider by stocking a full range of building systems and materials for professionals in a variety of industries.

As the area’s leading construction supplies provider, we’re committed to offering you additional services and solutions including materials consulting for architects, highly efficient job-site delivery and a full-service door division. Learn more about our core service offerings below.



We deliver construction supplies straight to the job site no matter how big or small. Our customers’ trust in us is built on a proven track record as the dependable, consistent and safe materials delivery solution.
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Negwer Door Systems has the knowledge and expertise to accommodate any commercial door, frame or hardware needs. Our experienced sales staff, project managers, estimators, detailers and welders are standing by to help provide high-quality custom door solutions for your projects. Learn more.



NMI Architectural Solutions materials consultant services deliver a concentrated level of service to assistant architects, engineers, interior designers and specifiers from project conception to completion. Learn more.