Kitchen Extract


Kitchen ductwork and ventilation cleaning

Kitchen extract systems have an increased fire, odour, vermin and hygiene risk compared to general air supply and extract. This is due to the grease build up and general deposition of cooking oils acting as a potential ignition source. Kitchen extract cleaning is essential to minimise these risks, as stipulated by the Association of British Insurers (ABI) and the Health and Safety Executive (HSE).


What our service includes ?

Our kitchen extract cleaning services include regular testing to determine the frequency of cleaning required, dependent on system usage and the type and quantity of cooking. After initial kitchen ductwork and ventilation cleaning, We will supply a ‘Certificate of Cleanliness’, followed up by a ‘Post-clean Verification Report’. This report is required as evidence of system cleanliness by the HSE, Environmental Health Officers and buildings insurance assessors, necessary for continued validation of an insurance policy.


Our Reporting

  1. Pre and post-clean photographic records of ventilation and ductwork cleaning

  2. Pre and post-clean Wet Film Thickness Test (WFTT)

  3. COSH data on any chemicals used

  4. Recommendations for future cleaning requirements

Any inaccessible sections of the kitchen extract system need to be highlighted and presented accordingly within a comprehensive post clean report.

The requirement for cleaning your ventilation system

Kitchen extract cleaning is important to maintain the safety of those in the workplace. The majority of catering establishments feature a canopy extraction system within the kitchen to control the build-up of heat, steam, and grease emissions in the cooking area.

The filters in the canopy act as a good “first line of defence” against grease deposition but still allow the smaller particles to pass into the extract duct-work system.  These deposits will accumulate over time and can pose hygiene and fire risks. Whist the canopies and filters are easily accessible for regular cleaning by catering staff the ductwork is normally hidden above a ceiling and can pass through numerous walls and floors before reaching the discharge point.


These hidden sections require specialist attention for cleaning to the TR19 standard.

This standard also indicates a recommended frequency of cleaning dependant on the number of hours per day the kitchen is operational. Once cleaned to TR19 a cleaning certificate can be produced to verify compliance with Health & Safety obligations & Insurance requirements.

Many hotels, restaurants, leisure clubs, and fast food operations now include the kitchen extract system on their regular maintenance schedule.

Apart from hygiene and continued business considerations, there are potential legal implications to consider. If for example, fire investigators found that there were no access doors in the duct-work, making it impossible to clean, then the building owner could be guilty of negligence and face prosecution under the Health & Safety (Offences) Act 2009.

Our team of experienced surveyors can accurately quote for any given project by way of a free site survey. 

Around a quarter of the 24,000 accidental fires in UK non-domestic buildings each year are caused by cooking appliances. Fires are an occupational hazard in commercial kitchens, but their impact is made far worse by the rapid spread of the fire through poorly maintained grease extract systems and ductwork. If grease deposits in uncleaned ductwork are ignited they will spread the fire rapidly to other parts of the building.


Get a quote

Our kitchen extraction cleaning services are fully bespoke and tailored to your requirements, For a no obligation quote please contact us.