General Info Since 2005 Air Duct Pros has provided the highest quality air duct cleaning service to over five thousand homeowners in Maryland. Located in Baltimore we are family owned and operated. Our only business is air duct cleaning and we take what we do very serious. Unlike others, we do not employ part-time carpet cleaners, chimney cleaners or gutter cleaners. Our employees are thoroughly trained in the most up to date and effective source removal* cleaning methods in the industry.