Canopy filters.
Can be baffled (strips of metal running from top to bottom) or mesh (thin
metal sheets layered within the filter housing.
May be referred to as: vents, grills, extractors and baffles.
Purpose: To catch grease deposits and allows air to flow through the system.
Found within the canopy.
May be referred to as: Hood and
Purpose: To catch fumes, smoke
and grease deposits.
May be refereed to as: Ductwork,
ducting, exhaust, flue, chimney, extract,
hose and pipe.
Purpose: To remove grease, cooking
smells and fumes from out of the
Duct runs from behind the canopy filter
and out of the building.
Extractor fan.
Can be referred to as: Extract, fan,
Housed within the ducting.
Location of the extractor fan
within the duct varies.
Produces positive airflow which
draws the grease and fumes from
the kitchen and through the duct.

What are the parts of an extraction system?

Is it a requirement or just a suggestion I need my extract,
duct and canopy cleaned?

It is a requirement for all businesses building owners to
maintain the cleanliness of the ventilation system in a

Extraction, duct and canopy cleaning companies keep going
on about a fire in the extraction system,
has it ever happened or is it a scare tactic?

70% of  commercial property fires caused by extractor fans

Fires caused from a build up of grease in the extract happens.
In fact it happens a lot more frequently than you think.
Check out these cases:

Extraction fire news article

Extraction fire in Essex

Extract fire Hackney

Extract and duct fire Southwark

Fire in Surrey

Fire central London

Fish and chip shop fire

What parts of the extraction system should be cleaned?

All of it.

Canopy, duct, fan and filters.
Some companies only clean the canopy and filters for an
attractively low price of around £250.00.
They arrive on site
and complete the clean in a matter of hours.
Sure, the price is good, looks clean and saves you money and
time but your business is not compliant with all regulations.
Ducting and the extractor fans must also be cleaned.
Any certification post clean issued to you is worthless.
You have just wasted money and now have to spend even
more time finding another company to have the system
re cleaned.

Just cleaning the
canopy does not eradicate the risk of a fire within the duct or
decrease the risk of your extractor fan breaking down.
If ducting and the fan has not been cleaned your warranty on
the fan will be void. If your fan breaks down and you have a
gas interlock system, all gas appliances will not turn on.
Kitchen operations will cease until the repair has been carried
This will lead to a closure of your business, costly repairs
and a waste of your time and money.

Fire suppression systems fitted to the canopy can become
clogged with grease and will not work if a fire breaks
out on the appliances or in the canopy. It is important to
remove as much grease as possible to ensure the fire
suppression system functions if needed.

How is the system cleaned?

Grease needs to be  scraped by hand and removed from the
duct to remove the risk of the grease igniting within the duct.
Then the left over stubborn residue can be removed with a
de greaser.
The extractor fan has to be free from carbon and stuck on
This involves either cleaning in situ or removing from the
The canopy including the area behind the filters need to be
de greased to ensure no grease is present, and sanitised to
ensure all bacteria has been eradicated.
Canopy filters need to be free from all grease and food.

How do I choose a company?

You're busy and the subject of extraction cleaning
is, well,...... boring.
You  shouldn't have to spend lots of your time
thinking about or reading about companies that offer this
service. You just need the job done correctly the first time of
asking and not think about it until the next clean is due.
Below are a few points to help you decide.

Any company you chose to carry out your extract system clean
should follow the BE&S, TR19 specifications on the correct
cleaning of duct, extract and canopy cleaning. If they don't, its
not the clean you need.

Ask the company if the duct, fan, canopy and filters are
included in the clean.

Make sure before and after pictures are provided.

Ask: "Do I receive a certificate after the clean?"

Ask the company if they have any experience.

Is it an estimate or a fixed price quote you have been given?
Estimate prices can escalate if the company turns up to site
and say they:
"We have to fit access doors in the duct",
"its harder/dirtier than they though it would be",
"the clean took longer than expected."

Tempting as it may be to chose the lowest quote it might not
be the most cost effective decision.
If the price quoted is significantly lower than all other quotes
you have received, you should question why.
Time and time again business owners chose a company that
only clean what is visible. The canopy is just wiped over, filters
only cleaned on one side and sometimes just turned around,
ductwork missed and the fan has not even been touched.

How can getting my extract and duct cleaned benefit my

Ask your self:

"Would I want to dine out at a restaurant that smells of old
grease and has a smoky atmosphere?"
"Do my customers like the smell of old grease and smoke?"
"Is it  a pleasant working environment for my staff?"
"Do I want grease dripping from my canopy and on to food
being prepared?"
"Does my kitchen get hot easily and almost unbearable in
"Do I want a higher hygiene rating or how do I retain my high
"How can I stop rotting vermin, dead birds and insect
infestations in the canopy and duct?"


How much can I expect extract, duct and canopy cleaning to

Tricky question with no definitive answer.
All you can do is contact companies and chose who you are
comfortable hiring.
Just remember, a cheap price may not be the most budget
friendly, time saving option if the clean is sub standard.

Get an indicative price.

Can the extraction and duct cleaning be done "in house"?

This question gets asked a lot.
Although hygiene levels can be maintained by regular cleaning
carried out
by your self or a member of your staff, this will not be accepted
by insurance companies or satisfy your fire safety risk
assessment if a fire was to breaks out.
Extraction cleaning and duct cleaning is a very dirty task and
involves working at height.  It is unreasonable to expect
untrained and unexperienced staff members to complete a
thorough clean.
A hygiene and safety certificate post clean must be issued by a
competent and experienced company.

Why do I need to have my extraction, extractor fan, canopy,
duct and filters cleaned?

All businesses that have a working kitchen in the UK are
required to maintain all ventilation within that kitchen.
This includes regular cleaning of the kitchen extract system,
canopy, duct, fans and canopy filters. Failure to do so means
you are in breach of fire safety standards, health and safety
guidelines and your buildings insurance.

An unclean kitchen extraction system is one of the leading
causes of fire, ensuring the system is cleaned on a regular
basis should be near the top of your fire safety checklist.
Under the Regulatory Reform (fire safety) Order 2005 your
extract systems need to be included in your fire risk
assessment, with action taken to minimize any potential
fire risk to buildings and occupants
A clean ventilation system significantly reduces the risk of
fire breaking out within the system.

Cleanliness of ventilation systems is taken in to account
when issuing your hygiene rating. A dirty, greasy canopy will
lead to a lower hygiene rating.

Strong smells from within the duct when the extract system
is turned on can intrude on surrounding homes and other
businesses. This can make for unpleasant living or working
conditions for neighbours and become an annoyance.
Grease leaking from the system on to communal areas or
neighbouring properties become a trip hazard and destroy
Environmental health can be called and will come out to
inspect the extract system.
They will insist that the system is cleaned immediately.
Phoenix has undertaken many cleans like this that need

Duct cleaning, extract cleaning
and kitchen cleaning

How often does the extraction system need cleaning?

This is based on how many hours you actively use the
Follow the guide below:

Why may I need a kitchen deep clean?

There are many reasons why you might decide to call upon the
services of a profession kitchen deep cleaning team.

You may have taken on a new business or new premises and the
cleanliness may not be up to scratch.

As a business owner you prefer to ensure your kitchen hygiene is
maintained out of operating hours so you encounter no lose of

To achieve a higher food hygiene rating or maintain your already
high rating.

Environmental health have requested you bring your kitchen or
specific areas of your kitchen up to code by a particular date.

Its more cost effective than aving a team of your own staff to
undertake the kitchen deep clean.

What should be cleaned during a kitchen deep clean?

In a full kitchen deep clean you should receive a thorough clean
ovens including convection
hot plates
bain marine
work benches, underneath, sides and legs
fridges (inside and out)
freezers (inside and out)
fridge and freezer seals
door handles
grease traps
large appliances such as mixers, microwaves, potato rumbler etc
light switches

What is not usually included in a kitchen deep clean?

You should not expect utensils, plates, cutlery, trays, knives,
chopping boards, small appliances such as hand mixers or
blenders to be cleaned during a standard kitchen deep clean.
However, if you require these items be cleaned, most
companies should be happy to provide you with quote to include
these items.

What is the process of a kitchen deep clean?