The answer to 'retaining wall installation cost in Illinois' is that the cost can vary significantly based on several factors. Typical retaining wall installation costs in Illinois can range from $20 to $50 per square foot, but the final price will depend on the size, materials, and complexity of the project.
Some key factors that influence retaining wall installation costs include the height and length of the wall, the type of materials used (such as concrete, stone, or timber), any necessary excavation or site preparation work, and the labor costs in your local area. Homeowners should also factor in the cost of permits, inspections, and any necessary engineering or design services.