Roof Cleaning by A&E offers certified non pressure roof cleaning in Central PA and Northern MD. Using our safe and effective soft wash method, we are able to remove black streaks or stains, lichen and moss. We can clean your asphalt shingles, slate or tile roof and return it to its original beauty. Call us for your free estimate. (717) 324-4208 Visit us here to see a complete list of our services and more pictures of our work.