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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"... I have enjoyed working with your team.  Thanks for all you have done with us at the penguin exhibit at Columbian Park." - David Brumagin, Mattcon General Contractors

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"Thanks for all your help on this project. I want compliment you both on the prompt responses for the many changes to the drawings as we went through the approval process with the seller. This promptness is what keeps clients happy and coming back." - Jeff Justice, Rainstorm Car Wash

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"Our Village was in need of assistance in reviewing permit applications for our Engineering Division. Chastain came through with an excellent staff person to provide us the professional experience we needed. This service is exactly what we needed to fill in the gap." - Village of Oak Park

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"The Consultant utilized their staff efficiently to cover the project and was very cooperative in working with the County." - DuPage County DOT

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"Chastain provided phase I and II services for DeKalb County for a section of Plank Road utilizing HSIP funds.  Chastain performed very well and I look forward to future opportunities with them."
- DeKalb County

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"... Chastain managed our transportation and roadway projects in 2021. We have found them highly responsive to our needs and intuitive on the various processes involved with the associated tasks. The knowledgeable staff never fail to offer innovative solutions to anything we throw their way."
​- Village of Lake in the Hills

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"I appreciate the professional and efficient services I received from Fisher Engineering."
- Tom Iseley, Construction Engineering & Mgmt., Purdue University

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"You all have been great to work with!"
- Todd, County Judge Executive, Ballard County

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"Chastain has consistently provided excellent professional services for civil engineering we needed on our projects.  They are extremely responsive, and passionate about their work providing practical solutions to our most challenging issues that we encounter in the field, always with great communication, delivering quality plans on time and within budget."
- Jeffrey Flemming, AIA

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"Chastain works collaboratively with the Village on our pavement management program to most effectively address our community needs and our village board's objectives. - Village of Schaumburg

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