The answer to 'how much is retaining wall service' is that the cost of retaining wall installation can vary widely depending on several factors. Typically, the price range for a professional retaining wall service can be anywhere from $20 to $50 per square foot, but this can be higher or lower depending on the specific project.
Some of the key factors that influence the cost of a retaining wall include the size and height of the wall, the type of materials used (such as concrete, stone, or brick), the complexity of the installation, the site conditions, and the labor costs in your local area. Additionally, if the wall requires specialized engineering or needs to be built on a slope or uneven terrain, the price can be higher.