Pressure washing is a cleaning method that uses a high-pressure water to remove dirt, grime, and other stains from surfaces such as buildings, driveways, and decks. 

Pressure washing can be used on a variety of surfaces including concrete, brick, wood, and vinyl siding.

The frequency of pressure washing depends on various factors such as the location, weather conditions, and amount of foot traffic. Generally, it is recommended to pressure wash your property at least once a year.