DON"T HIRE the CLEAN SWEEP COMPANY!!!
These other reviews are exactly correct. We took a morning off work to let the cleaners in and no one showed up. In my previous experience, it was impossible to normally get a hold of someone at CLEAN SWEEP but the phone was forwarded to one of the cleaners who surprisingly picked up the phone. When I told her that no one had shown up for the appointment 2 hours earlier, she said that she would look into it and call back. Well, surprise, surprise no one called back and when I called again there was no answer and no machine to take messages. I don't expect to ever hear from them again.
So CLEAN SWEEP is CLEAN AWFUL!