Office Cleaning Services | AJ Services AJ Services (AJCS) founded in 1997 in Chicago, Illinois. We are committed to enhancing the reputation of your workplace to leave a lasting impression. Learn more about commercial cleaning services from AJ Services. Uncover all potential benefits of our cleaning services for your business. Professional commercial cleaning services for offices, dealerships, restaurants, schools, daycares, churches, bowling alleys, showrooms, taverns, bars and all other commercial business properties. AJ Services is an office cleaning company providing diligent commercial and office cleaning services for businesses nationwide. Our professional commercial cleaning and janitorial services are backed by 20 years of expertise. Improve your facility’s image by hiring professional office cleaning company that offers best office cleaning services.