Indepth Hygiene Services has been providing specialist hygiene & safety services to commerce and industry for more than 20 years and is now the UK’s leading independent company in this field. We assist major organisations and companies in the public and private sectors to fulfil their obligations to exercise ‘due diligence’ and a ‘duty of care’ as required by hygiene & safety legislation.

2. SPECIALIST HYGIENE & SAFETY SERVICES
Deep cleaning of grease extract systems
Total elimination of fire hazard conditions
Work carried out in accordance with HVCA Specification TR19 (previously TR17)
Provision and installation of access doors to ensure total system cleaning
Fire Safety cleanliness certification on completion of service
Deep cleaning of air systems
Total elimination of health hazard conditions
Work carried out in accordance with HVCA Specification TR19 and NADCA
recommendations
Provision and installation of access doors to ensure total system cleaning
Air quality sampling and monitoring surveys pre and post clean
Deep cleaning of catering and food production facilities
Work carried out in accordance with Government Specifications M&E 142 and 038
Hygiene & safety audits provided post clean to confirm ‘due diligence’ requirements
have been met
Optional cleaning of specified installations and equipment to complement daily cleaning
routines
Deep cleaning and disinfection of water systems
Service carried out to meet requirements of health and safety legislation ACOP L8
Inspection and testing service of supply and installations
Remedial refurbishment service for water storage tanks
Disinfection of cooling towers and humidifiers

3. Indepth Hygiene
Services Limited
Indepth Hygiene Services has been providing specialist hygiene & safety
services to commerce and industry for more than 20 years and is now
the UK’s leading independent company in this field. We assist major
organisations and companies in the public and private sectors to fulfil their
obligations to exercise ‘due diligence’ and a ‘duty of care’ as required by
hygiene & safety legislation.
Our workforce is experienced and fully trained to provide our services in
accordance with government approved specifications and best health
& safety practice; reinforced by fully detailed work method statements
and risk assessments. We are accredited to BS EN ISO 9001/2000,
SAFEcontractor, a member of the Heating & Ventilating Contractors’
Association, the British Institute of Facilities Management and the Fire
Protection Association.
With health & safety legislation under constant review and the Fire Safety
Order placing greater responsibility in the form of self-assessment on the
shoulders of building owners and managers, our specialist services for the
maintenance of health and safety in the workplace, as described in this
brochure, are in increasing demand.
Apart from our primary responsibility to deliver professional, fully effective
services, we are aware of the need to assist companies and organisations
to contain costs and keep maintenance budgets under control. To this end
we undertake to hold all our contractual prices unchanged for a minimum
period of three years.
If you are not already one of our many clients, I hope you will find
here information about services which will be of interest to you in your
management of buildings and facilities. If you already retain one of our
specialist services, I hope you will find others of direct
relevance to your responsibilities. Whichever is the case,
I would be glad to hear how my company may
be of assistance to you and for myself, or one of my
colleagues, to discuss your particular requirements with
you.
Richard Norman
Managing Director
1

4. Deep cleaning of grease
extract ventilation systems
Accumulations of grease-laden Legal requirements
deposits in extract ventilation
systems, often linked to catering The Regulatory Reform (Fire Safety)
Order brings major changes to fire
facilities, present a significant fire safety regulations. Fire Authorities will
hazard. It is not unusual for no longer be responsible for issuing fire
grease extract ducts to run certificates. Companies, as well as
through a building to reach a roof individuals, will be made responsible for
level exhaust, thereby putting the their own compliance with the legislation.
Every organisation will be required to
whole building structure and its nominate a 'responsible person' or
occupants at risk in the event of 'persons', e.g. the employer, the owner or
fire. any other person who exercises control
over all, or a part of, the premises. The
Although filters in canopies help responsible person will have to assess
the risks of fire in a Fire Risk Assessment
trap some grease, grease-laden air and take steps to reduce or remove
will pass through allowing grease them. Should the 'responsible person'
deposits to settle on the internal fail to carry out these duties they will be
surfaces of ductwork. Apart from held personally liable for injury or death
the fire risk, the accumulation of to building occupants in the event of fire.
The Fire Authorities will retain powers for
grease in extract systems reduces compliance and enforcement.
ventilation efficiency by restricting
the amount of air extracted, These responsibilities will equally apply to
resulting in over-heating, excessive a contractor who is in charge of part of the
humidity and possible failure to premises in order to provide a service e.g.
a contract caterer. They will need to ensure
remove noxious fumes in the a Fire Risk Assessment is carried out for
catering facilities, particularly if gas the catering facility and this assessment
ranges are used. At the same must include the kitchen's grease extract
time, a restricted grease extract ventilation system where grease from the
will also allow steam and cooking cooking operation accumulates in the
ducting. This is a potential fire risk area
smells to permeate other parts of and the catering contractor has a
the building. responsibility to ensure action is taken
to eliminate the risk.
Cleaning away grease from an ...clean and safe surfaces Insurance
extract ventilation system...
requirements
As a result of the escalating
costs of compensation for
losses arising from major
fires and recent court case
judgements, Insurers,
particularly those who are
members of the Association
2

5. Example of blocked vents,
discovered during a survey
of British Insurers, are now including assessment of the system, this report
clauses in their policies requiring will provide you with invaluable
specific action to be taken to reduce information with which to prepare one.
fire risks in grease extract systems. It will also describe what remedial action
needs to be taken to eliminate any
Those who fail to comply with the new identified risks.
Fire Safety Order will find their property
insurance either impossible to obtain, Eliminating the risk
difficult to renew or invalid in the case of fire.
Eliminating the fire risks can only be
Risk assessment = achieved by professional deep cleaning,
probability x consequence beyond the capabilities of general cleaners.
Our fully trained and equipped workforce
If a building has a grease extract will restore safety to all types of extract
ventilation system then it is most likely systems in accordance with the HVCA
to have a probability level of risk - it has Good Practice Standard Specification
probably not been cleaned since its TR19. Where access to the ductwork is
installation or, if it has, it is likely to have not already in place we will install access
been inadequately or only partially panels as part of the service to allow
cleaned and not fully cleaned since.
The consequence of a fire occurring in the
grease extract system can be substantial -
not only to property but to the lives of the
occupants. Fires at Heathrow, South
Mimms Service Station, the Witney Town
Centre and several hotels bear witness to
the high cost of damage caused by fires in
grease extract systems.
Dangers from building changes
The fire at Witney Town Centre was a classic
example. A simple non-grease catering unit
had been changed to one cooking high fat
content food. The result: grease deposits thorough cleaning throughout the system.
built up on the internal surfaces of a usually Where vertical risers form part of the
fairly clean extract which the centre system our trained operatives are qualified
operators had almost forgotten existed, to clean the internal surfaces thoroughly,
a flash fire occurred igniting the grease yet safely using approved rope access
deposits leading to almost total destruction equipment and techniques.
of the shopping centre.
Evidence of compliance
Assessing the risk
On completion of the deep cleaning service
As a first step, we will carry out a we provide a Fire Safety Cleanliness
detailed survey of your grease extract Certificate. This certificate can be shown
system and provide a photographic and to Insurers as evidence that you have taken
written report quite free of charge. If appropriate action to eliminate risks to your
you have not already carried out a risk building and its occupants.
All contractual prices guaranteed not to be increased for minimum of three years 3

6. Air quality monitoring
service
The air quality within a building is Air quality survey report
influenced by many factors;
particles of dust and fibres, gases Our survey report will provide an
assessment of air quality at various
that are generated within the points within a building and within the
building and contaminants and air distribution ductwork itself. Its
pollutants brought in from essential elements are to report on:
outdoors. AHU functioning efficiency
filtration effectiveness in the AHU
Dangers to health air and surface contamination
internal air duct surface deposit
Many pollutants can be of a toxic nature,
levels and characteristics.
harmful to human health through their
potential to cause infection or allergic
reactions. The combination of often-found
moisture, or free water, on the bottom of
ventilation ducting and/or humidity together
with dust provides nutrients for microbial
growth. Some illnesses caused by
hazardous substances may not appear for
some years after initial exposure. It is,
therefore, vital to carry out air quality
monitoring to identify any present or
potential dangers to building occupants.
Measurements of relative humidity and
temperature, carbon dioxide and monoxide
levels and airborne bacteria are standard to
all our testing.
Findings are authenticated by independent
UKAS accredited laboratory analyses and
accompanied by recommendations for
remedial action. The data will enable
comparison with HSE Occupational
Exposure Limits and provide building
management with invaluable information for
the completion of COSHH Assessments as
required under Health & Safety legislation.
Our air quality monitoring service can be
provided as a stand-alone service or as a
pre-cursor to deep cleaning of the air
conditioning systems to eliminate identified
hazards.
4

7. Deep cleaning of air
conditioning systems
It is well known that the lack of
maintenance and cleaning of air
conditioning systems is a major
cause of staff sickness and the
spread of common infections in
the workplace. Sick building
syndrome was coined to cover a
multitude of air-borne risks to
health.
The legal requirements
The Workplace (Health, Safety & Welfare)
Regulations require building owners and
managers to ensure enclosed workplaces
are ventilated with fresh or purified air.
From 1st January 1996 an EC directive
now incorporated in these regulations
require the ventilation systems to be
regularly and properly cleaned and tested.
Failure to exercise this ‘duty of care’ could
result in prosecution of building owners and
managers.
Meeting legal requirements
Cleaning prior to
Our air conditioning deep cleaning service commissioning new or
has been designed to assist management re-furbished systems
meet their legal obligation to exercise a
‘duty of care’. As a first step, we will carry To ensure there are no contaminants
out a survey of your system and provide a in ductwork systems prior to
detailed photographic and written report. commissioning, we will carry out a
This will be tantamount to providing an thorough deep clean of new or
MOT on the state of your system and will refurbished installations to meet
identify the presence of any hazards to building regulations, and in
health and safety. accordance with procedures laid
down by BSRIA AG3/89.3 and HVCA
Where hazards are shown to exist, our DW/TM2. In highly sensitive areas,
deep cleaning service will be carried out in such as computer rooms, intensive
close consultation with you to ensure the care units and operating theatres,
minimum disruption to work operations and this pre-commissioning service is
staff. mandatory. Just ask us to survey
and provide quotations at the
planning stage.
All contractual prices guaranteed not to be increased for minimum of three years 5

8. Deep cleaning of catering and
food production facilities
The increase in Food Hygiene and
Safety Regulations in recent years
has reinforced the need for
management to ensure thorough
cleaning programmes are in place
to maintain the highest standards
of food hygiene & safety in
catering and food production
facilities.
Meeting ‘due diligence’
requirements
The Food Hygiene Regulations and the
Food Safety Act cover all premises where
food is prepared or sold. For a hygiene
and safety regime to comply fully with the
‘due diligence’ provisions, periodic deep
cleaning should be in place for those
installations and equipment which are not
fully cleaned as part of the daily cleaning
routines. The specification for our hygiene Identifying risks
& safety deep cleaning services for catering
and food production facilities is based on As a first step to ensuring that your
Government Specifications 038 and catering or food production facilities
M&E142. comply with all relevant legislation we
will provide you with a fully detailed
survey report on the hygiene and safety
status of all installations and equipment
with accompanying costings for
providing our specialist hygiene & safety
deep cleaning service tailored to your
requirements. This report is quite free of
charge and provided without obligation
for you to proceed.
Before...
...and after deep cleaning programme
6

9. Selective deep
cleaning
In some cases, for example, where Evidence of compliance
staff are able to maintain with legislation
satisfactory standards of hygiene
for major items of equipment, it is On completion of our deep cleaning
service we provide a Work Quality
the difficult and concealed areas Certificate, which is your guarantee that
which require professional deep work has been carried out to the highest
cleaning services. We will identify standards and can be used as evidence
with you precisely the areas which for Health and Safety Inspectors and
require deep cleaning to Environmental Health Officers that you
have met your legal obligations to
complement your own cleaning exercise ‘due diligence’.
programmes so that together we
achieve an overall standard of
hygiene and cleanliness that will Maintenance of required
ensure approval by EHO standard
inspections of the total facility.
In consultation with you we will put in place
a regular programme of hygiene and safety
High level cleaning - often it is the wall maintenance tailored to the usage pattern
surfaces above 6 feet, which cannot be of your facilities.
cleaned by staff. Similarly the ceilings, light
fittings and roof structural supports are Usually this would mean three or six
often out of reach for staff. Our deep monthly services to ensure standards of
cleaning will ensure all unhygienic and fire hygiene and safety are maintained at all
hazardous deposits are removed from times. And, remember, our contractual
these difficult surfaces. prices are guaranteed not to be increased
for a minimum period of three years.
Floors - there are many different floor
surfaces in use in catering, food production
facilities and dining areas. Daily cleaning by
staff is often insufficient to maintain the
required standards of hygiene and safety.
By using specialised equipment and
chemicals, our operatives will ensure your
floor surfaces are thoroughly cleaned and
free of all contaminants.
Canopies & Filters - often these are
difficult for staff to access for cleaning. Our
specialist service will ensure removal of all
potentially fire hazard deposits from internal
surfaces of canopies, filters and drip trays.
Where filters are worn or ineffective we can
provide a filter replacement service.
All contractual prices guaranteed not to be increased for minimum of three years 7

10. Deep cleaning and disinfection
of water systems
The key installations for water supply are
the cold water storage tanks. Frequently,
however, they are rarely inspected and
often poorly maintained. Corrosion, rust
and other harmful deposits are allowed to
build up to become a potential source of
contamination of the water supply.
Indepth Hygiene provide a range of
services to re-assure building owners and
occupiers that their water supply is free of
possible contamination and any risk to
health. We will totally refurbish water tanks
including applying new linings, coatings
and insulation to comply with current bye
laws. Cooling towers and humidifiers will
be totally disinfected using fully approved
The current recommendations
specialist chemicals.
under Health & Safety Legislation
ACOP L8 refer specifically to the
We will provide regular inspection and
control of legionellosis. It
monitoring surveys to check that the water
recommends regular inspection,
supply is safe and potable. For newly
cleaning and disinfection of these
installed commercial and industrial water
installations:
systems we will provide a specialist pre-
Hot Water Calorifiers commission cleaning service.
Cold Water Tanks
All disinfection processes and chemicals
Water Softeners are fully approved, supported by detailed
Cooling Towers & Condensers
risk assessment and method statements.
On completion of our service we provide a
Shower & Bathroom Facilities water quality certificate.
Humidification Plant
Vehicle Washing Facilities
8 All contractual prices guaranteed not to be increased for minimum of three years

11. Clients who have retained
Indepth Hygiene Services
Accenture Investcorp International
Alliance & Leicester Johnson & Johnson
Allied Dunbar Kensington Palace
AON Risk Services KMPG
Associated Newspapers Legal & General
Association of British Insurers London Underground
B&Q L'Oreal
Bank of England MAN Group
Bank of Scotland Merck, Sharp & Dohme
Bass Mercury One 2 One
BMW Metropolitan Police
BNP Paribas Microsoft
BP International Ministry of Defence
British Council National Grid
British Library Natural History Museum
British Red Cross National Westminster Bank
Britvic Newmarket Racecourse
BUPA Norwich Crown Court
Clifford Chance Norwich Union
Coca Cola Penguin Books
Cornhill Insurance Pilkington Glass
Credit Agricole Priory Hospitals
Credit Lyonnaise Proctor & Gamble
DEFRA Prudential
Deloitte & Touche Public Records Office
Desoutter Royal Military College
Deutsche Bank Rolls Royce
DHL Rothschild
Direct Line Royal Albert Hall
Dixons Royal Bank of Scotland
DTZ RIBA
Earls Court & Royal Ocean Racing Club
Olympia Conference Centres Saatchi & Saatchi
Epsom Racecourse Securicor Omega Express
Eurest Shakespeare Globe
Exel Logistics Shell International
Fidelity Investment Services Sony
First Choice Holidays Standard Chartered Bank
Freshfields Sun Micro Systems
Fujitsu Tate Modern
GlaxoSmithKline Telewest Europe
Goldman Sachs Tesco
Goldsmith College Texaco
Halifax Equitable The Environment Agency
Hampton Court Palace The Salvation Army
Heinz 3i
Hermes Pension Management University of Buckingham
Hitachi Europe University of Southampton
HMP Brixton University of Westminster
HMP Highdown Victoria & Albert Museum
HMS Nelson Virgin Atlantic
Home Office Wallace Collection
Imperial College WH Smith
Imperial War Museum WWAV Rapp Collins Group
Institute of Child Health Youth Hostel Association
Invensys Young & Rubicam

12. SPECIALIST HYGIENE & SAFETY MAINTENANCE
Indepth House, Wellesley Road, Sutton, Surrey SM2 5BW
Tel 020 8661 7888 Fax 020 8661 7506
Email: admin@indepthhygiene.co.uk www.indepthhygiene.co.uk