Different kitchen air systems need different treatment
Commercial kitchens may contain grease extract ductwork, general extract, supply-air systems and local ventilation serving separate rooms. These systems should not all be described or cleaned in the same way. A grease extract receives airborne cooking residues, while supply air should be assessed for dust and general internal cleanliness. The first stage is therefore to identify the system, where it starts, where it terminates and what air it carries. Photographs of grilles, canopy connections, plant, filters and visible ductwork help with initial planning, while drawings can clarify concealed routes. Safe access may involve ceiling voids, roof areas or landlord-controlled plant rooms. The site contact should organise keys, permits and isolations before work. A realistic scope states what is included and records inaccessible sections. It also distinguishes cleaning from balancing, commissioning or mechanical repair. This prevents the customer from receiving a vague service that does not match the actual ventilation problem.
Maintaining airflow and clear records
A clean internal surface does not by itself prove that a ventilation system is correctly designed or delivering the required airflow. Poor performance may result from blocked or damaged filters, a failing fan, closed dampers, control faults, restricted ductwork or an unsuitable system layout. Cleaning addresses removable contamination in reachable areas; mechanical and design problems require the appropriate specialist. After work, the report should identify the system, methods, accessible components, observations and outstanding limitations. Where several systems serve one building, clear labels and separate records help future contractors understand which route was treated. Review periods should respond to the building’s use and measured condition rather than an arbitrary date. Duct Clean London assesses kitchen-related air systems across North West, West and Central London and explains when an enquiry falls outside grease-extract cleaning. Send the postcode, room use, operating hours, visible system photographs and previous maintenance information so we can discuss the most appropriate next step.