Other Duties and Responsibilities In addition to the duties listed above, every crew member is responsible for general center maintenance and cleaning duties such as mopping, washing center windows, lawn mowing, clearing litter, snow and ice from the site, and cleaning restrooms. Compensation: $15.00 - $19.00 per hour Founded in 1978 and headquartered in Denver, Colorado, the Grease Monkey® brand currently operates more than 300 centers internationally with operations in Mexico, China, Colombia and Saudi Arabia.