Power Clean did a great job cleaning the outside of my 2-story, vinyl-sided house. My house was very dusty/dirty with more than a few areas black with mold or something like that. It had not been cleaned in years! Since it has the vinyl siding, I’ve been worried about whether the hard-core pressure washing process would cause damage. I don’t actually know if it does or not, but I preferred not to take a chance. It turns out that Power Clean doesn’t use high pressure to clean. They use water and cleaning solution. Owner, Marc Moore came when he said he would (this doesn’t happen often). He did the job in a couple hours. He even got up on the roof to clean some of the black areas and the house finally looks clean! I highly recommend this company.