Gutter brightening is a thorough cleaning process that removes dirt and stains (like vertical “zebra” striping) from the gutter face to reveal the original, bright color underneath. The process of Gutter Brightening causes that dirty water to run down your house and onto the siding. For this reason, Gutter Brightening is an add-on option only with our full House Wash projects. Ask Soft Wash Exteriors if Gutter Brightening can restore the original look of your gutters.