Here is a roof we cleaned using our no-pressure roof cleaning system. We did not use a power washer and the owner was thrilled with how new the roof looked and how we were able to clean it without pressure washing. We do a lot of house washing in Harrisburg PA and also power washing in Mechanicsburg PA. Since 2001 we have washed a lot of vinyl siding homes in the Carlisle PA too. No-pressure roof cleaning is definitly a great thing to have done in conjuction with a house wash. It just makes your house look so clean!!! I think it is going to be a great year pressure washing houses in Mechanicsburg.