When gutters overflow, they often stain the fronts of the gutters with the dirty rainwater. These stains can negatively affect your house's appearance. This service is to wash those stains from the fronts of your gutters. It usually removes 80%-100% of the stains. The front washing service is purely cosmetic. If the insides of your gutters are not cleaned, they will continue overflowing and the stains will reappear.