Air Conditioning, Ventilation and Refrigeration
Commercial Kitchen Duct Cleaning
Clean grease filters don’t mean a clean duct. The fine grease vapour that gets past them settles inside the ductwork, out of reach of daily kitchen cleaning, and builds into a layer that a flare-up on the range can ignite.
Robinsons Facilities Services coordinates commercial kitchen duct cleaning to the BESA TR19 Grease specification for pubs, hotels, school canteens, and care homes across Yorkshire and the Humber. We arrange specialist cleaning partners to clean your system from canopy to fan, and you receive the report and certificate your insurer and fire risk assessor may ask to see.
- Small kitchen: from £450+VAT
- Restaurant or pub: £500 to £900+VAT
- Hotel or large venue: from £900+VAT
Get a quote for commercial kitchen duct cleaning →
Prefer to speak to someone? Call us on 01423 226578 →
Commercial kitchen duct cleaning removes grease from the inside of a kitchen extract system, from the canopy and plenum through the ductwork to the extract fan and discharge. It follows BESA TR19 Grease, the industry specification that limits grease deposits to a 200 micron mean and sets minimum cleaning intervals by daily hours of use.
Why grease in the ductwork is a fire safety issue
A duct fire is difficult to fight. It burns out of reach behind walls and ceilings, and it can spread along the ductwork to other parts of the building, well away from the kitchen where it started.
The Regulatory Reform (Fire Safety) Order 2005 requires fire risk in non-domestic premises to be assessed and reduced. TR19 Grease is not law, but it is the recognised specification for kitchen extract cleaning. Many commercial insurance policies now require cleaning to it, and a lapsed regime can put that cover at risk.
What a TR19 Grease clean covers
A TR19 Grease clean treats the extract as one route for grease, from where it enters the system to where it leaves the building. Our partners clean:
- the canopy interior and grease filter housings
- the plenum behind the filters
- the full length of the extract ductwork, through access panels
- the extract fan and its casing
- the discharge point or roof termination
Grease levels are measured with deposit thickness tests, so the result is proven rather than assumed. TR19 Grease is a separate specification from TR19 Air, which covers general ventilation ductwork. For office and HVAC systems, see commercial duct cleaning.
How often should kitchen extract ducts be cleaned?
Under TR19 Grease, the minimum interval depends on how many hours a day the kitchen cooks:
- Heavy use, 12 to 16 hours a day: every three months
- Moderate use, 6 to 12 hours a day: every six months
- Light use, 2 to 6 hours a day: every twelve months
These are minimums, not targets. A kitchen running fryers or chargrills lays down grease faster than its hours suggest, so the right interval comes from a risk assessment backed by the deposit test results, which show whether grease is staying under the limit between cleans.
What you receive after the clean
Every clean produces a post-clean report you can hand to your insurer or fire risk assessor. It includes:
- before-and-after photographs of the cleaned sections
- deposit thickness test results
- a written summary of the work, the access points used, and any areas that could not be reached
- a hygiene certificate showing the date, the system location, and the technician who carried out the clean
Pricing
Duct cleaning is priced on the size of the system: the number of canopies, the length and layout of the ductwork, and how much grease has built up. We confirm a fixed price before any work starts.
As a guide:
Small kitchen: from £450+VAT
Single canopy, cafe or takeaway.
Restaurant or pub: £500 to £900+VAT
Two to four canopies, moderate ductwork.
Hotel or large venue: from £900+VAT
Multiple zones, complex or lengthy ductwork.
Kitchens that need cleaning every three or six months can have their cleans scheduled through a PPM and compliance contract, so the next one is booked before it falls due.
One-off cleans are priced as quoted works.
How we support you
Robinsons Facilities Services arranges the clean with specialist kitchen extract cleaning partners and book it around your service, usually overnight or while the kitchen is shut. You deal with one point of contact from quote to certificate. If the clean turns up a problem, such as a worn fan or a duct run with too few access panels, we can quote the remedial work alongside the rest of your kitchen plant.
Our accreditations include SafeContractor, UKAS ISO 9001, CHAS, and Constructionline Silver.
Get a quote for commercial kitchen duct cleaning →
Prefer to speak to someone? Call us on 01423 226578 →
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Commercial Kitchen Duct Cleaning FAQs
A small single-canopy kitchen starts from £450+VAT. A restaurant or pub with two to four canopies is typically £500 to £900+VAT, and hotels or large venues with several cooking zones start from £900+VAT. Duct length, access, and grease build-up drive the final figure. Send us an enquiry or call us on 01423 226578 for a fixed price.
No. TR19 Grease is a BESA specification, not legislation. The legal duty comes from the Regulatory Reform (Fire Safety) Order 2005, under which whoever controls non-domestic premises must assess the fire risk and act on it. Cleaning to TR19 Grease and keeping the certificate is the recognised way to demonstrate that grease in a kitchen extract is under control.
Staff can and should clean grease filters and the visible canopy surfaces as part of the kitchen routine. The duct interior and the fan are a different job, needing access panels and specialist cleaning kit. A staff clean also produces no deposit test results or TR19 certificate to show an insurer.
With a deposit thickness test, which measures the grease film at points along the system. TR19 Grease sets a limit of a 200 micron mean across the system and calls for immediate spot cleaning wherever a reading reaches 500 microns.
A single-canopy kitchen is usually cleaned in one visit. Larger systems with long or complex duct runs take longer and can be split across visits to keep the kitchen trading. We confirm the timescale when we quote, and the work can be booked outside your service hours.
The post-clean report records any section the cleaners could not access and recommends how to open it up, usually by fitting extra access panels, which we can price so the next clean covers the whole system.
No. A suppression system is designed to tackle a fire once it has started. It does nothing to stop grease building up in the ductwork, so kitchens with suppression fitted still need cleaning to TR19 Grease.
Yes, we offer commercial kitchen extraction system maintenance and fire suppression system inspections. We also install and maintain all commercial kitchen ventilation systems.
At Robinsons Facilities Services, we operate across Yorkshire and the entire UK. So, no matter where you’re based, if you need commercial kitchen duct cleaning, just pick up the phone and give us a call today at 01423 226578.
Last updated: 07/10/2026
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