Penn Commercial Business / Technical School in Washington, Pennsylvania, has been preparing students for in-demand careers for the past 85 years! At Penn Commercial Business / Technical School our Business, Technical, Medical and Cosmetology Programs are designed to deliver results. To put you to work. To transform your professional goals into reality. Our programs can be completed in 3 to 18 months, integrating proven curricula, personalized instruction, modern facilities, and extensive academic support.