The answer to 'how much does retaining wall installation cost' is that the cost can vary significantly depending on several factors. Typically, retaining wall installation can range from $20 to $50 per square foot, but the actual cost will depend on the materials used, the size and complexity of the project, and the local labor rates in your area.
Some key factors that influence the cost of a retaining wall installation include the type of material (e.g., concrete, natural stone, interlocking blocks), the wall's height and length, the site's terrain and accessibility, and any necessary excavation or site preparation work. Additionally, the cost may be higher if the wall needs to be engineered or if there are unique design elements. It's essential to get quotes from local landscaping contractors to get an accurate estimate for your specific project.