Regular cleaning and maintenance of kitchen extraction systems is important for health, safety, and regulatory reasons. Dirty ducts can lead to fires and fail to meet insurance standards. It is recommended that businesses have their ducts professionally cleaned every 3 to 12 months depending on usage to remove built-up grease. Assured Cleaning is a company that offers specialized duct cleaning services throughout the North West of England, including thorough inspections, maintenance programs, and certificates of cleaning.