The answer to 'what is retaining wall installation' is the process of constructing a wall or structure designed to hold back soil, rocks, or other materials from a higher level to a lower level. Retaining walls are often used in landscaping to create terraced gardens, level out sloped areas, or prevent erosion.
Retaining walls can be made from a variety of materials such as concrete, stone, brick, or even wood. The installation process typically involves excavating the area, preparing the foundation, and then building the wall layer by layer. Proper drainage is also important to prevent water buildup behind the wall.