In this form of thorough cleaning is meant primarily the machining of hard coverings (eg PVC, linoleum, rubber, tiles, natural stone, terrazzo, etc.).

The basic cleaning is a very thorough cleaning, in which all hard to reach places such as corners, niches or grooves are cleaned. All parts that can be removed are removed and thoroughly cleaned with cleaning agents.

A basic cleaning is carried out 3 to 4 times a year. The spring cleaning is for example a basic cleaning.