Greater London · TR19 inspections and grease testing
TR19 inspections in Harmondsworth
TR19 inspection in Harmondsworth, surveyed first and signed off with a written report and photos. Call for a fixed quote.
- Insurance renewals needing proof of TR19 cleaning
- Kitchens taken over with no cleaning records
- Checking the result of a recent clean
TR19 inspection in Harmondsworth, done properly
Grease thickness testing tells you how much grease is sitting in the canopy, ducts and fan. We use the Wet Film Thickness Test (WFTT) or the Deposit Thickness Test (DTT), taking readings at set points. From the numbers, you can see whether cleaning is due. The work covers deposit thickness tests, wet film thickness tests and post-clean checks, and people most often call us about missing TR19 certificates or history and systems that need surveying before cleaning.
In London, few kitchens can spare a day to close, so extract cleaning in Harmondsworth is usually done overnight, after the last service. Parking, loading and access to the roof are agreed with the building before the night of the clean.
It’s worth checking any contractor’s accreditations. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Place
- Harmondsworth (UB7, TW6)
- Wider area
- Greater London
- Reporting
- Certificate and photo report
- Quote
- Fixed quote, usually within a working day
- Hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
What happens if it’s left?
An EHO visit, an insurance renewal or a fire risk assessment is a bad time to find your extract records are thin. A recent inspection report means you’re ready when asked. It’s better booked as a planned job in Harmondsworth than handled as an emergency.
We do not list prices on the website, because the cost depends on the site in front of us. Call for a fixed quote, and we’ll talk you through it.
Why book with us
- We’re fully insured
- Fixed quotes from a survey or pictures
- Trading since 2009
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Your questions about TR19 inspection in Harmondsworth
Which environmental health team covers Harmondsworth?
The local authority for Harmondsworth is Hillingdon council, and its environmental health team does the inspecting. It helps to keep the extract cleaning records with your food safety paperwork, so they’re ready if asked for.
Who is the fire and rescue service for Harmondsworth?
Harmondsworth is in the area of London Fire Brigade. TR19® is not law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
Can you come out in an emergency?
Yes. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line and we will talk you through the next steps.
Which accreditations do you hold?
Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
Can you verify a clean after it’s been done?
Post-clean verification is a check after a clean, with fresh grease readings and photos. It works whoever carried out the clean.
What is TR19?
A BESA specification in two main parts: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It isn’t legislation, but it’s the standard people check against.
How far ahead should we book?
That depends on the slot you want and the size of the job. Tell us your preferred dates when you ask for a quote, and if it’s an emergency, call us any time.
How do you protect the area?
We start with protection: sheeting over floors, worktops and anything close to the work. The area is left tidy, with our waste taken away.
Different parts, different methods
Horizontal duct runs
If a run has no access panel, we note it so it can be fixed before the clean.
Canopy and plenum
We look over the canopy, inside and out, and note where grease has gathered.
Looking after it afterwards
Simple habits between visits make a real difference. We recommend:
- Send TR19 audit reports to your insurer on request
- Keep the route to access panels clear
- Keep canopy edges and gutters wiped down
- Tell us if menus or opening hours change
Readings of 500 microns or more are highlighted as needing immediate spot cleaning, and we can quote to do it.
Keep filters clean and in place. Missing or damaged filters let grease straight into the plenum.
What affects the quote in Harmondsworth
Before we fix a price, we need to know a few things. We check:
- Whether it’s a one-off visit or part of a schedule
- How many systems or sites are involved
- Parking and loading at the site
- The condition we find in the survey
One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. You’ll have a fixed price before work begins.
What to send for a quote
Photos and a few facts are often enough to price the work. Useful things to send:
- Detail shots of panels, filters and grilles
- Where the site is and what kind of site it is
- Your opening hours and when the area is out of use
- How we’d reach plant on a roof or in a plant room
Some systems can be priced from photos; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, you get a fixed price before work begins.
Managing agents and facilities teams in Harmondsworth
Running several sites is easier with one contractor. We cover South East England and London, so visits at different addresses can be planned together and kept on a regular cycle.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.
Harmondsworth kitchens: local notes
Food Standards Agency records include about 14 pubs and bars and about 12 hotels, B&Bs and guest houses across Harmondsworth and its immediate surroundings (about a mile and a half). Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Most London extract cleaning happens at night, after the last service. Harmondsworth sits within the area of London Fire Brigade. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.
Bursars and site managers at schools such as Harmondsworth Primary School tend to book extract cleaning for when the kitchen is empty. A hospital like Harlington, about 1.4 miles east, is the kind of site where a kitchen may cook for patients, staff and visitors all day. Where a hall near Church of St Mary, or anywhere in Harmondsworth, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Harmondsworth is about 1 mile south-west of West Drayton, in Greater London. We carry out TR19 inspection for commercial premises of every kind in Harmondsworth and the rest of Greater London. Harmondsworth is one of 764 places in Greater London we cover for commercial clients. You can also see our page for London, roughly 17 miles from Harmondsworth.
Postcode districts we cover here for TR19 inspection: UB7 and TW6. You’ll find streets such as Moor Lane, Hatch Lane and High Street, and we cover them all for TR19 inspection. We also cover the places around Harmondsworth: Longford (1 mile south-west), Sipson (1 mile north-east), Heathrow (2 miles south-east), Harlington (2 miles east) and Stanwell (2 miles south). Larger places within reach include City of Westminster (14 miles east), Marylebone (14 miles east), Kensington (12 miles east), Hampstead (14 miles east), Ruislip (7 miles north-east) and Brompton (14 miles east).
Landmarks near Harmondsworth
We work in commercial kitchens and buildings around Harlington Community School and The Five Bells Inn. The closest station to Harmondsworth is Heathrow Terminal 5 Rail station, roughly 1 mile south. Other landmarks nearby include British Airways Heritage Collection (3.5 miles north) and Harlington (1.4 miles east). Not far away are Crane Meadows and Staines Reservoirs.
Towns and villages near Harmondsworth
More services for Harmondsworth
What we do, step by step
There are three stages on the day: set-up, the treatment itself and the sign-off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with pictures. The middle part takes longest, and that takes a couple of hours for a typical kitchen extract system. Security desks and permits-to-work are routine in London, so let us know what your building in Harmondsworth needs from us.
- First we book a time that will not disrupt cooking.
- Every part of the system is examined, end to end.
- We take WFTT or DTT readings at set points along the system.
- We photograph the test points and record any sections we can’t reach.
- You get a report with readings, pictures and recommendations.
Before we arrive
- Let us know about permits to work or site inductions
- Dig out any earlier paperwork for the system
- Tell us where we can park and unload
Getting a quote
For a fixed quote, call 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. We normally come back within one working day.
Advice
Staff cleaning versus specialist work
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
Staff cleaning and specialist work are not the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.