We live in a part of the country that has humid seasons year round. This environment promotes growth of mold and mildew. At Joe Pogo's Window Cleaning and Pressure Washing, our technique is three-fold: we rinse the area, apply our gentle cleansers, then scrub the surfaces with a soft bristle brush. This process is the only way to thoroughly clean without using damaging high pressure. We believe you will be happy with the results.