Promax Construction

4.8(85 reviews)

141 W Main Street, Decatur, IL, 62523

Promax Construction is an independent and family owned company founded in 2000 by John Schilawski. While the company is evolved over the years, John Schilawski continues to run the company with his wife Sharon. Promax Construction's home base is in Decatur, IL, but we provide services to the greater central Illinois community including Springfield, Champaign, Bloomington, IL and any location within a 65 mile radius of Decatur, IL.

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Promax Construction

141 W Main Street, Decatur, IL, 62523

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This profile is unverified. It was compiled from public records and the contractor has not confirmed its details with us, so contact information is not shown.

This is a Public-Record Listing: the information for Promax Construction was compiled from publicly available business registration and licensing data.

Information last reviewed September 2026 · Claim this profile

Public-Record Listing.: Compiled from public business registration and licensing records. Not vetted by NRD — confirm license and insurance with your state board.

Licensing: check the IL requirements

Location: Decatur, IL

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