Gutter cleaning pertains to cleaning the inside of the gutters so that rain water from your roof can flow off and out of your property. Gutter whitening is cleaning the outside of the actual gutters for the appearance and street view appeal. Two different types of cleaning but both equally needed.
Our method of gutter whitening is to pressure wash the outer side of the gutters using telescoping pressure washing wands. Using a low psi and light scrubbing most to all black streaks will go away.
Here we have a third story apartment gutter whitening job that we used a telescoping pressure washing wand for. please excuse the gutters being filled with debris. Its only for the shot.