The Sound Cleaning crew did an outstanding job of pressure washing all the flat concrete surfaces throughout our 9-building condo complex. Carlos was great to work with, both in the initial property survey and the crew start-up the first day of work. The two-machine system is very efficient. Both techs were careful and conscientious. They left not a spot of debris anywhere. I particularly appreciated that Boni called at the end of the 2nd day to see whether anything was missed or needed re-working.