Just like carpeted areas, you will notice traffic patterns that develop on tile and grout surfaces, with discoloration in the grout joints. The Grout Medic uses a solution that is safe for the environment and that will pull the dirt out of the cracks and indentations of grout joints. We then employ our steam cleaning process to clean the dirtied traffic patterns in the grout. When everything is clean and free of debris, a sealing agent is applied that penetrates deep into the grout to prevent it from becoming discolored again later on.