Chastain specializes in building and enhancing infrastructure, offering comprehensive services ranging from the design and construction inspection of transportation highways, roadways, and bridges to the engineering of civil site developments.

Our mission is to unite communities by creating sustainable, innovative, and well-crafted environments where people can live, work, and play. Through our commitment to excellence, we contribute to the seamless integration of infrastructure that serves the functional needs of communities and fosters connectivity and quality of life.

What Our Clients Say

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​Compared to the other HSIP grant projects the City has implemented recently, this project was by far the most successful at staying close to the 90/10 actual split. Chastain did a great job here controlling the costs of this project.  - City of Rockford

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​Chastain did an excellent job at coordinating efforts to keep our project on time with effective communication and timely paperwork processing.  Maintaining our project schedules and procedures is very important to us, and you did a great job!  - Steve Vogel, Exelon

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​...consistently outperformed expectations and helped ensure the successful completion
​of a difficult project.  - Illinois Tollway

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...what really stood apart from all other efforts was their responsiveness to our residents and the efforts taken to address their concerns and questions.  - Village of Schaumburg

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...developed proactive solutions to problems.  One example of the effectiveness of this approach led to significant cost savings on this project by the reduction in volume of undercut and backfill for unsuitable soil removal.  - IDOT, District One

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In our final evaluation from the county they rated us "Excellent" in 7 categories out of 9, and "Above Average" and "N/A" in the other 2 remaining categories.  They stated, "... the resident engineer was very knowledgeable and managed the project very well." - DuPage County DOT 

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"Very happy with the work performed, very thorough professionals. Thanks."
- Mark Staples, Clinton, Illinois

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