Greater London · TR19 inspections and grease testing
TR19 Inspection in Kitts End
We cover Kitts End for TR19 inspection. Fixed quotes, work around your opening hours and photo reports as standard.
- Missing access panels found on survey
- Post-clean verification after another contractor’s clean
- Kitchens taken over with no cleaning records
TR19 inspection in Kitts End, 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. The results show whether the system needs cleaning and how soon. The work covers insurer audits, post-clean checks and wet film thickness tests, and people most often call us about surveys needed before quoting a full clean and an insurer’s request for a TR19 audit.
Across London, many commercial kitchens are squeezed into basements and narrow back-of-house spaces, and the duct may run up through several floors before it discharges at the roof. In Kitts End, as elsewhere in the capital, a long duct run means more access points to open and more grease to remove.
The sign-off is always in writing: a written report, dated and illustrated with pictures, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.
- Location
- Kitts End (EN5)
- Wider area
- Greater London
- Paperwork
- TR19® certificate and photo report
- Price
- Fixed quote, usually within a working day
- Hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
What happens on the day
On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool before any work starts, and floors and nearby surfaces are sheeted. The work itself takes an hour or two for a single kitchen, longer for a large or complex system. Loading bays, visitor permits and roof access are the first things we ask about for a site in Kitts End.
- Post-clean verification is booked once the clean is done.
- We open the access points used on the clean.
- We repeat the WFTT or DTT readings.
- Photos are taken to show the condition after the clean.
- We report the findings and flag any areas that need more work.
Before we arrive
- Dig out any earlier paperwork for the system
- Move anything stored near the system
- Let us know about permits to work or site inductions
How to get a quote
For TR19 inspection in Kitts End, ring 0345 646 2711 or drop us a line. Let us know the site type and the opening hours, plus pictures or the previous report if they’re to hand. A fixed quote normally follows within one working day.
Related advice
When something else is needed
An honest diagnosis matters more to us than a booking, so here’s what this work cannot put right:
- A faulty or failing extract fan
- Installation problems, which fall under design guidance such as DW172
- Heavy deposits found on test, which still need cleaning
If in doubt, call us on 0345 646 2711 or send us an email and we will say what we think.
Parts of the system we cover
- Post-clean checks
- Pre-clean surveys
- Insurer audits
- Access surveys
- Wet film thickness tests
- Deposit thickness tests
What happens if it’s left?
Finding a hotspot early means a targeted spot clean rather than a bigger problem later. Left alone, grease keeps building between cleans. Leaving it on a busy London site only adds to the work.
A single site or a whole portfolio, we price it on the same basis: the work involved, the access and the timing. The price is fixed before work begins.
Why choose Duct Doctor in Kitts End
- Photo reports with every job
- Fully insured
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- A single point of contact for sites across the South East and London
Kitts End questions
Which environmental health team covers Kitts End?
Food hygiene inspections in Kitts End are carried out by Barnet council. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.
Which fire authority looks after Kitts End?
Kitts End is in the area of London Fire Brigade. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
What do you do to protect the area?
With sheeting and covers, before anything else happens. The work is kept contained and clean down when we finish.
Can you set up regular visits?
Yes, of course. Send details of the systems and how they’re used, and we’ll suggest a schedule and quote for it.
What does TR19 mean?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It is not legislation, but it’s the standard people check against.
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.
How much time does an inspection need?
Expect it to take around an hour or two per canopy and duct system. The visit is timed so cooking isn’t disrupted.
Do you check other contractors’ cleans?
A post-clean check records grease readings and photos after the work, whoever did the clean.
Towns and villages near Kitts End
What else we do in Kitts End
Part by part
Restaurants, pubs and hotels
BESA’s minimum for heavy use of 12 to 16 hours a day is a clean every 3 months, and readings show whether that’s enough.
Horizontal duct runs
Sections without access are recorded so panels can be added.
In-house cleaning or a specialist?
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that is where we come in.
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
Between visits
Simple habits between visits make a real difference. Our advice:
- Keep access panels clear and unpainted
- Wipe the canopy surfaces regularly
- Have the latest report ready for insurance renewals
- File every inspection report with your certificates
The report recommends when the system should next be cleaned and tested, from the measured grease and the kitchen’s hours.
Clean, correctly fitted filters stop more grease reaching the duct. Gaps around filters let grease get past them.
When to call us in Kitts End
As hot, greasy air travels up the duct, it cools and leaves a film behind. The thickest layers can sit out of sight in the plenum, at bends and along flat runs.
Keep an eye out for these warning signs:
- Surveys needed before quoting a full clean
- Systems cleaned on a calendar with no measurements
- Parts of the system left out of past cleans
- Insurance renewals needing proof of TR19 cleaning
Church and community hall kitchens, near Parish Church of St Mary the Virgin or anywhere around Kitts End, are easy to forget, but their extracts collect grease like any other.
Questions to ask before booking
- Which accreditations they hold, and whether you can check them
- Whether the quote is based on a survey or photos
- Whether a written report and pictures are included
- Exactly which parts of the system are covered
Kitchen extracts in Kitts End
Food Standards Agency data counts about 31 cafés, restaurants and staff canteens and about 9 takeaways within 1.5 miles or so of the middle of Kitts End. Where they cook under a canopy, a grease reading is the way to tell whether the extract is due a clean. Fire safety in Kitts End falls to London Fire Brigade. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. In London, kitchens are usually cleaned overnight, when the kitchen is closed and loading is easier.
Historic houses near Kitts End, such as Wyllyotts Manor about 1.7 miles north, are a reminder that older buildings with event kitchens can have long, awkward duct routes. If you look after a school kitchen, at a school such as Monken Hadley CofE Primary School or anywhere near Kitts End, the holidays are the usual time for a TR19® clean.
Kitts End is about 2 miles south-west of Potters Bar, in Greater London. Wherever you are in the EN5 postcode area, we cover TR19 inspection for commercial sites. Our Greater London coverage runs to 764 places, and Kitts End is one of them. There’s also a page for London, roughly 13 miles from Kitts End.
Every address in EN5 is covered for TR19 inspection, from the main roads to the quietest streets. Close by, we work in Dancers Hill (1 mile north-west), Hadley (1 mile south), High Barnet (1 mile south), South Mimms (2 miles north-west) and Ridge (2 miles north-west). We also work in nearby towns such as London (13 miles south), City of Westminster (11 miles south), Marylebone (11 miles south), Kensington (12 miles south), St Pancras (11 miles south) and Shoreditch (11 miles south-east).
Landmarks near Kitts End
Around Kitts End, our work takes us to kitchens and buildings near King George's Fields (Monken Hadley), Former King William IV Public House and Susi Earnshaw Theatre School. The closest station to Kitts End is Hadley Wood station, roughly 1.1 miles east of the centre. Nearby you’ll also find Spires Shopping Centre (1.2 miles south) and Potters Bar Museum (1.6 miles north). Not far away are Hadley Green and Darland's Lake.