How long does professional grout cleaning take?

For a small area, such as a kitchen or bathroom, it may only take a few hours for a professional cleaner to clean the grout. However, for a larger area, such as an entire floor, it may take several hours or even a full day for the cleaner to complete the job. The level of soiling also affects the time needed for cleaning, heavily soiled grout may take longer to clean than lightly soiled grout.
The method used for cleaning can also affect the time needed for cleaning. For example, if the cleaner is using a chemical-based cleaning solution, it may take longer for the solution to work and for the grout to be cleaned. On the other hand, if the cleaner is using a high-pressure steam cleaner, the cleaning process may be faster.