Greater London · TR19 inspections and grease testing

TR19 inspections in Whitton

TR19 inspection for Whitton, from a team that has been trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.

  • Systems cleaned on a calendar with no measurements
  • Kitchens whose menu or hours have changed
  • Heavy grease suspected in the plenum or ducts

TR19 inspection for sites in Whitton

What we’re called out for in Whitton

As hot, greasy air travels up the duct, it cools and leaves a film behind. It often collects where nobody can see it: the plenum, bends and horizontal runs.

Common reasons sites call us are:

  • Uncertainty over how often to clean
  • Missing TR19 certificates or history
  • Kitchen extract systems with no recent grease readings
  • Extracts that may be over the 200 micron mean

For kitchens close to Whitton station, where the day often starts early and ends late, the extract can be cleaned overnight.

Questions to ask before you book

  • How they set the interval to the next visit
  • What paperwork you get at the end
  • Whether VAT is included
  • Proof of accreditation you can verify

Questions to ask before booking

How we handle TR19 inspection in Whitton

If you’ve taken over a kitchen in Whitton and don’t know when the extract was last cleaned, an inspection is the place to start. We survey the system, measure the grease and tell you what needs doing, before any cleaning is booked. Common call-outs are for missing TR19 certificates or history and heavy grease suspected in the plenum or ducts, across deposit thickness tests, wet film thickness tests and insurer audits.

Across London, many commercial kitchens are squeezed into basements and narrow back-of-house spaces, with extract ducts that can climb several floors to discharge at roof level. In Whitton, as elsewhere in the capital, a long duct run means more access points to open and more grease to remove.

Think of the report as the system’s health record: a dated account with pictures of everything we did. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal, ready for your insurer.

Place
Whitton (TW2, TW1, TW7)
Region
Greater London
Records
Certificate and photo report
Price
A fixed quote up front
Working hours
Overnight and weekend work, 24/7 emergency callout
Call
0345 646 2711
Last updated
30 October 2026
Inside an extract duct: heavy deposits on the left, cleaned metal on the right

What TR19 inspection looks like in Whitton

There are about 180 restaurants, cafés and works canteens and about 52 takeaways and sandwich shops within about 1.5 miles of central Whitton, according to the Food Standards Agency’s register. Where they cook under a canopy, a grease reading is the way to tell whether the extract is due a clean. In London, kitchens are normally cleaned overnight, when the kitchen is closed and loading is easier. Environmental health officers from Richmond-Upon-Thames council inspect food businesses in Whitton. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Our report lists what was cleaned and when, which is useful to have ready.

If you run a church or community hall kitchen, near All Saints Church or elsewhere in Whitton, its extract still collects grease from every lunch and event. Healthcare kitchens, like those at hospitals such as South Middlesex Hospital (about 0.8 miles north-east), often cook for long hours, which puts them in BESA’s heavier-use bands.

Whitton is about 1 mile west of Twickenham, in Greater London. We carry out TR19 inspection for businesses, landlords and public buildings in Whitton and the rest of Greater London. Our area takes in 764 places across Greater London, from busy centres to quieter spots. London is in our area too, around 12 miles away.

Here we cover the TW2, TW1 and TW7 postcode area for TR19 inspection. TR19 inspection is available to premises on May Road, Mill Road and Ross Road and nearby roads. Close by, we work in Twickenham (1 mile east), Ivybridge (1 mile north-east), Fulwell (1 mile south), Strawberry Hill (1 mile south-east) and Eel Pie Island (1 mile east). Within a short drive, we also cover London (12 miles east), City of Westminster (10 miles north-east), Marylebone (10 miles north-east), Kensington (7 miles north-east), St Pancras (11 miles north-east) and Shoreditch (13 miles north-east).

Near you in Whitton

In Whitton, that means kitchens and buildings near The Richmond upon Thames School, Trafalgar Infant School and Crane Park, among other places. There’s a railway station in Whitton itself: Whitton station. A little further out are Museum of Army Music (under half a mile north) and Treaty Centre (1.4 miles north). The countryside around Whitton includes Garden Lake and Richmond Hill.

Map of Whitton © OpenStreetMap contributors

Whitton: your questions answered

Who inspects food businesses in Whitton?

Kitchens in Whitton are inspected by Richmond-Upon-Thames council’s environmental health officers. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.

Do you clean school canteen extracts around Whitton out of term?

Yes, out-of-term visits are normal for schools. Around Whitton, the Food Standards Agency lists about 22 schools and colleges with registered kitchens within a mile and a half or so. You can call 0345 646 2711 or drop us a line with the dates the site is empty.

What does TR19 inspection cost?

It depends on the site, so we quote each one individually. For a quote, ring 0345 646 2711 or drop us a line with the site type, opening hours and a few pictures.

What is TR19?

TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.

When should we have our next grease test?

It depends on how heavily the kitchen cooks. BESA’s minimum cleaning intervals are every 3, 6 or 12 months for heavy, moderate and light use, and grease readings help set the real interval.

How do you keep the site clean during the work?

By covering it before any work starts. The work is kept contained and leave the area clean.

What is a WFTT or DTT grease test?

It’s a measurement of how much grease is coating the inside of the extract, by WFTT or DTT. The results are given in microns.

What happens if you cannot reach some of it?

We record them on the report, with a note of where it is, and we explain what access is needed, for example new access panels.

When something else is needed

An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:

  • A faulty or failing extract fan
  • Installation problems, which fall under design guidance such as DW172
  • Hidden runs that need access panels first

Not sure which it is? You can call us on 0345 646 2711 or drop us a line and we will tell you honestly.

Where we work

  • Deposit thickness tests
  • Insurer audits
  • Post-clean checks
  • Pre-clean surveys
  • Access surveys
  • Wet film thickness tests

What affects the quote in Whitton

The quote reflects the site in front of us. We consider:

  • How big the system is
  • Site requirements such as sign-in and permits
  • Travel, parking and unloading
  • Whether we need access equipment or extra panels

You will not find a price list here, because each job is priced on what it involves. Call for a fixed quote, and we’ll talk you through it.

Asking for a quote

What to send for a quote:

  • Where the plant sits or the system leaves the building, such as a roof or outside wall
  • Where the site is and what kind of site it is
  • The paperwork from the last visit, if you have it
  • Close-ups of filters, grilles, hatches or access panels

There’s no standard price list, because no two systems are the same. We look at your system first, from pictures or on a visit, and then give you a fixed quote. To get going, phone us on 0345 646 2711 or email us.

What the work involves, part by part

Canopy and plenum

Behind the filters, the plenum catches plenty of grease. We take readings there and photograph it on every inspection.

Schools, hospitals and care homes

We fit testing around service times and school holidays to avoid disruption.

What staff can safely do

Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they cannot safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.

Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.

For landlords and multi-site operators

Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we’ll send a fixed quote.

Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept on a regular cycle.

How it works

Everything the job needs comes with us, including protection sheets, the right tools and access kit. You only need to give us clear access and switch off what needs to be off. On site, the work takes anything from an hour for a small canopy and short duct to a good part of a day for a large site. Most London sites can’t stop for the day, so work in Whitton is normally done overnight, early in the morning or at weekends.

  1. Post-clean verification is booked once the clean is done.
  2. We open the access points used on the clean.
  3. We repeat the WFTT or DTT readings.
  4. We photograph each area to record how it was left.
  5. We report the findings and flag any areas that need more work.

Preparing for the visit

  • Make sure equipment near the work can be switched off and left to cool
  • Have your last certificate or report to hand
  • Tell us where we can park and unload

Getting a quote

To get a fixed quote, call 0345 646 2711, or email photos and tell us the type of site, your opening hours and roughly what the system looks like. A few photos and your last certificate or report help a lot. We typically come back within one working day.

Get a quick quote

Read more

BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London