Tecomak offer deep cleaning services for kitchen extract canopies, ductwork and fans. We find extract canopies and grease filters are kept clean but often the rest of the system is overlooked.

The Regulatory Reform (Fire Safety) Order 2005 requires all schools premises must carry out a fire risk assessment and implement and maintain a fire management plan. Putting in place regular kitchen duct and ventilation cleaning will help to satisfy this law and remove the most common cause of fires within the kitchen.

The extract system can present a particular hazard due to the potential risk for the accumulation of grease which could become a hidden combustion load. The frequency and need for specialist ventilation system cleaning depends on the level of usage, cooking equipment, types and quantity of food prepared and other building risk factors.

As an accredited member of the Building & Engineering Services Association (B&ES) the service we provide is carried out in accordance with the “Guide to Good Practice: Internal Cleanliness of Ventilation Systems TR/19”. TR/19 provides recommendations on service intervals for kitchen ductwork cleaning. Many insurance companies are now stipulating that an accredited company must carry out ventilation cleaning in order to validate insurance policies.


Hours a Day

Service Intervals


2 – 6



6 – 12



12 – 16


B&ES TR/19 – Recommend Ventilation Cleaning Service Intervals

School Kitchens do not generally have deep fat fryers in place and with the strict meal legislative guidelines on healthy foods and cooking, kitchens come into the light use category.

Before and after each ductwork hygiene service we take TR/19 wet film thickness gauge measurements. This offers a means of verifying the necessary service frequency and photos are included with the ductwork inspection report. Generally an annual deep clean is sufficient but twice yearly is required in some school kitchens.