K B.
7/4/2025
Amazing windows! We all get tired of low quality, overcharging, work. Promax did the job on time, but also did an outstanding job. I had talked to many contractors and Promax came in and gave me...
Promax Construction
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(7)
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141 W Main St
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.
Reviews
4.57 reviewsDavid S.
5/16/2025
We had hail damage from the March 2024 hail storm that damaged our roof, gutters and siding. We hired Promax to do all 3 projects last fall with the roof being completed first. The roofing crew...
Daisha T.
7/2/2022
Our house had flooded from upstairs to the downstairs and once insurance said go get a construction company to get started I had called John from Pro Max construction and let me tell you how...
Jill C.
4/30/2023
Promax did an EXCELLENT concrete job at my house. I was scheduled right away once the weather cleared. Unfortunately I was out of town when my project was initially scheduled, but that didn't...
Colby G.
10/14/2015
Promax just completed a roof for us on one of our rental properties. The price was competitive, the service and interaction from their office was exceptional and the crew did a fantastic job. The...
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