40W201 Wasco Road, Suite D • St. Charles, IL 60175• Ph: 630.587.0470 • Fax: 630.587.0475







TAI Services

Trotter and Associates, Inc. is a full-service engineering firm structured to meet the growing needs of our municipal clients. TAI’s staff has the experience required to resolve the complex issues brought on by increased development, a changing regulatory environment and aging infrastructure. Our professionals work closely with the municipal officials to fully understand the community’s priorities and develop solutions that uniquely address the issues.



Municipalities throughout northern Illinois have been inundated by development, which places stress on the existing resources of the community. TAI is able to assist communities in planning for the future needs and minimizing the negative impacts of growth on the existing infrastructure. Some of the services we provide are:


  • Water Engineering
  • Capital Improvements Planning
  • Wastewater Engineering
  • Construction Management
  • Street & Parking Improvements
  • Construction Inspection
  • Wetland Mitigation
  • Land & Route Surveying
  • Site Development
  • Topographic & Construction Surveys
  • Utility Mapping/ GIS Data Collection
  • Subdivision Development Review
  • Municipal Buildings
  • Project Funding Administration


If external project funding is required to meet the communities infrastructure needs, we can assist in the loan and grant application processes, including IEPA, CDBG, ITEP, STP, MFT etceteras. We also have experience infrastructure financing through special tax provisions including G.O. Bonds, Special Service Areas and TIF Districts. In short, most projects can be funded if the project provides a cost-effective solution.

Our commitment to client satisfaction and investment into keeping abreast of emerging technologies has consistently provided the cost-effective solutions our municipal clients have grown to expect. Members of our team have worked with the Illinois EPA, Illinois Department of Transportation, county highway departments, and municipal public works departments on a wide variety of projects. Our team of project managers, engineers, and support personnel have extensive experience in the design, construction and inspection of public improvements.

Trotter and Associates, Inc. has tried to set itself apart by providing a fresh approach to municipal engineering. TAI’s team takes our responsibilities to our clients interests to heart, and works diligently to resolve the challenges that face both the staff and elected officials, alike. We empower our clients with the information necessary to make difficult, well-educated decisions. Trotter and Associates, Inc. is a civil engineering firm that is making a difference through setting a higher standard of service to our clients.