JAN-PRO of NEPA Opens New Office Location Members News April 11, 2022 JAN-PRO, a cleaning and disinfecting company, recently celebrated the grand opening of their relocated office space. The new office is located at 94 Bostin Hill Road, Larksville, PA 18651. Jan-Pro has been voted the number one commercial cleaning business by Entrepreneur magazine for the past 14 years, and the number one cleaning business in America.