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Food Hygiene Regulations

The Local Authority – Environmental Health
Catering Hygiene Regulations EC852

Local Authorities are not only visiting commercial kitchens to risk assess and check food hygiene. Every year, numerous prohibition notices are issued on commercial kitchens for violation of the relevant regulation EC852 which also covers the ventilation in your kitchen.

Of the 24,000 accidental fires per year in commercial properties, around 6,000 are attributed to cooking and extraction systems[1] and more than 80 per cent of kitchen extract ducts in the UK are never cleaned.[2]

Don’t let your business be at risk of fire and huge fines because of a failure to comply with regulations governing the cleaning of kitchen extract ductwork systems.

The National Association of Air Duct-Cleaners UK has produced a technical guidance document outlining how businesses must comply with the regulations.

By following the advice in the NAADUK’s technical guidance note NAAD1: 2015, businesses involved in food production, from farms to restaurants, can avoid the costly retro-fit of panels/ post-build work to provide access; reduce the number of inaccessible sections of ductwork; avoid the replacement of inaccessible ductwork; reduce the need for more expensive cleaning methods and specialist access equipment; avoid unsafe cleaning methods and work practices; and reduce the likelihood of fires and fines.

Under Regulation EC852/2004, which affects organisations operating in England, Wales, Scotland and Northern Ireland and became effective on 1 January 2006, there must be suitable and sufficient means of natural or mechanical ventilation; mechanical airflow from a contaminated area to a clean area must be avoided; and ventilation systems must be constructed so as to enable filters and other parts requiring cleaning or replacement to be readily accessible.

NAADUK’s guidance note provides advice on the practicalities behind the term “readily accessible” which includes 17 examples of constraints to access, their considered resolutions and the associated implications. Examples include:

Constraints to access

Considered Resolutions
(at the time of writing)


Duct located behind a solid ceiling with no point of access

Inspection hatches placed into the ceiling which expose the duct at intervals in accordance with the BESA TR-19 s.7


Horizontally obscured duct. Reasons include other services running alongside, above or below

Services should not be fitted to ductwork or in such close proximity that they obscure access to the duct. Ideally locate elsewhere. Room for access to duct in accordance with TR-19 s.7 must be maintained. Please see notes below.


False / tiled / suspended ceilings restricting access to void and duct

The distance between ductwork and ceiling grid should be kept to a minimum to reduce the need for working at height. Please see notes below. Design considerations should include larger ceiling tiles to allow person entry without the need for dismantling,


The guidance note includes a three-point test allowing organisations to consider if ductwork is accessible for cleaning and maintenance:

  1. Can all access panels be removed by an operative without being obstructed?
  2. Can an operative access all panels; standing on the floor, via a step ladder or tower?
  3. Can fabrications, fans, inline components be accessed without being moved?

The document also includes helpful visual guidance for obstructions and inaccessibility encountered on real-life constructions

To download the full guidance note visit:

The NAADUK guidance note was put together by a drafting panel made up of member companies in the ductwork cleaning industry with contributions from:

Adrian Preston, Environmental Health Officer, City of Westminster
Regina MacHale, Senior Practitioner, City of Westminster
Nick Laveby, The Food Standards Agency
Alan Muse, Royal Institute of Chartered Surveyors
Subash Ludhra - CFIOSH, FRSA, OSHCR, IOSH Past President – Anntara Ltd
Paul Greenwood, Tricon Food Service Consultants
Dr Hywel Davies, Technical Director, CIBSE


The National Association of Air Duct-Cleaners UK (NAADUK) is the leading register of qualified duct cleaners who have been trained by an accredited training provider to TR19 and BS15780 standards.

Founded in 2014, the association promotes quality standards, provides technical information and updates to its more than 200 members, facilitates communications between professionals, and engages with other organisations and professional bodies.

For further information visit

[1] According to insurers Aviva

[2] According to the Building and Engineering Services Association


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What our clients are saying . . .

  • The University have worked with Perfect Service Solutions (PSS) since 2009. They have undertaken the deep cleaning of all University catering ourlet extract systems, canopies and ductwork including wet film thickness testing. They are flexible in their approach and accommodate changes as necessary. PSS offer a good overall professional service with dedicated and knowledgeable staff and based upon my experience of working with PSS over the years, I would be happy to recommend PSS for similar types of contracts/works. We receive good customer service from PSS at a reasonable cost.

    Senior Maintenance Manager - University

  • Perfect Service Solutions carry out kitchen canopy cleans and service, maintain and repair kitchen extract equipment in over 40 of our sites. Most of our sites are schools and it can be quite difficult to arrange suitable access for repairs, however the need for flexibility is continually met by PSS. They seem to be able to re-organise their workload to accommodate our needs when any emergencies arise. They are very knowledgeable and I feel we can rely on them to inform us of any non-compliance issues, which they’ve done on more than one occasion. We’re confident that we are meeting all of our compliance obligations with the assistance of PSS and the quality of the overall service provided is good from placing orders, planning the work, execution of works and invoicing. We receive very good value for money and have no complaints with the quality of service. In fact PSS focus on providing excellent for their customers. and are always helpful in finding resolutions to our problems.

    M & E Maintenance Officer - Local Authority

  • I allocated Perfect Service Solutions 3 stores of my stores in order to check the quality of their workmanship, invoicing etc. They now service all 7 of my restaurants and I found them much better than my previous supplier. They brought issues to our attention and worked with us to address those concern, ensuring we were compliant with frequency of cleans etc. Not only are they flexible and value for money but they are transparent, progressive and are determined to deliver both a great service and product.

    Franchise Owner - Fast Food Restaurant Chain

  • In my 10 years of working and dealing with contractors in the cleaning industry, I have found Perfect Service Solutions to be by far, the most outstanding in their performance, professionalism and attention to detail.

    Before I engaged the services of PSS to deep clean our kitchens, I had three different companies clean the kitchen but the client was never satisfied for various reasons. But when I engaged the services of PSS, the client scored them 10/10 for service excellence and satisfaction! They are by far my preferred cleaning provider for the kitchens and I recommend them very highly to anyone interested in a professional kitchen deep clean as they truly live up to their name – Perfect Service Solutions!!

    Soft Services Manager - International Facilities Management Company

  • I have used Perfect Service Solutions for a number of years now and have always found the service and the costs to be of the best competitive price and the standard of work to always be above and beyond.

    Contracts Manager - Large Facilities Management Company

  • "The three staff that came to fit the fan were extremely courteous, friendly and professional and it was clear to see that they took pride in their work and cleared up after themselves."

    Head Chef - Independent Hotel Group