Hertfordshire · TR19 inspections and grease testing

The Flints TR19 inspection

TR19 inspection for The Flints and the surrounding area: a survey, a fixed price, careful work and proper paperwork. Call for a fixed quote.

  • Cleaning intervals that may not suit the kitchen
  • An insurer’s request for a TR19 audit
  • Parts of the system left out of past cleans

TR19 inspection across The Flints

Managing agents and facilities teams in The Flints

For anyone managing more than one site, we can plan visits across the whole estate and price them together. Each site gets its own report and photos, so each one has its own record.

Whether it’s one building or many, the standard is the same: a survey first, a fixed quote, the work timed around the site and a report with photos.

TR19 inspection in The Flints, done properly

Post-clean verification is a check carried out once the cleaning is done, with fresh grease readings, pictures and a look at the areas that were cleaned. It gives you evidence of how the system was actually left. If you’re dealing with kitchens taken over with no cleaning records and kitchen extract systems with no recent grease readings, we can put it right.

In a small place like The Flints, kitchens are often in older or extended buildings, with long single-storey duct runs, and those horizontal sections are where grease settles. Access, parking and timings are agreed before the day.

Think of the report as the system’s health record: dated, with pictures, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.

Before and after view down the inside of a rectangular extract duct
Where
The Flints (SG5)
Wider area
Hertfordshire
Paperwork
Certificate plus before-and-after photos
Quotes
A fixed quote up front
Hours
Overnight and weekend work, 24/7 emergency callout
Telephone
0345 646 2711
Page updated
30 October 2026

What we are called out for in The Flints

Grease in a duct is flammable fuel. A flare-up on the range can be drawn into the canopy and duct, and from there a fire can spread through the ductwork. Knowing how much there is lets you act before it becomes a hazard.

Signs it’s time to call us include:

  • An insurer’s request for a TR19 audit
  • Uncertainty over how often to clean
  • Parts of the system left out of past cleans
  • Pre-clean surveys before a first TR19 clean

Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Keech Hospice Care is the nearest hospital to The Flints, about 3.7 miles west.

Before booking anyone

  • How they set the interval to the next visit
  • Exactly which parts of the system are covered
  • Whether they’re fully insured
  • How VAT is shown on the quote

Choosing a duct cleaning contractor

Common questions in The Flints

Is The Flints within the area you cover?

Yes, smaller places are covered as well as towns. Photos of the system and directions to the site help us plan the visit.

Do you work overnight in The Flints?

Yes, nights and weekends are routine for us. Your customers, staff or residents in The Flints needn’t be disturbed. Your opening times are the first thing we ask for.

Which sectors do you work in?

We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.

What does TR19 mean?

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

What accreditations do you have?

Our accreditations are CHAS, SafeContractor and ISO 9001, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.

What is grease thickness testing?

The Wet Film Thickness Test (WFTT) and Deposit Thickness Test (DTT) measure how thick the grease is at a given point. Readings are taken at set points through the system.

Can you price the work without visiting?

Yes, where the pictures show enough. Otherwise, we book a survey at a time that suits the site, then a fixed quote.

Can you verify a clean after it’s been done?

A post-clean check records grease readings and pictures after the work, for our cleans and other firms’ alike.

Different parts, different methods

Vertical risers

Access to risers is often limited. We record what can and can’t be reached.

Canopy and plenum

The canopy itself is checked inside and out, with readings where grease collects.

TR19 inspection around The Flints

The Food Standards Agency lists about 4 pubs and bars as registered food businesses in The Flints and the streets around it, up to about 1.5 miles out. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. It’s North Hertfordshire council that sends environmental health officers to food businesses in The Flints. They look at how clean the premises and equipment are, and the kitchen extract is part of that. A TR19® certificate and photo report after each clean gives you a record to show an inspector. Hertfordshire Fire and Rescue Service covers The Flints. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises.

If you look after a school kitchen, at a school such as Offley Endowed Primary School or anywhere near The Flints, the holidays are the usual time for a TR19® clean. Where a hall near Church of St Mary Magdalene, or anywhere in The Flints, hosts lunch clubs or events, its extract gathers grease just as a café’s does.

The Flints is about 4 miles south-west of Hitchin, in Hertfordshire. From the centre of The Flints to the outskirts, TR19 inspection is available to all kinds of commercial premises, from a single unit to a large public building. We cover 381 places across Hertfordshire, from busy centres to quieter spots. For sites nearby, see our Milton Keynes page (19 miles or so).

Postcode districts we cover here for TR19 inspection: SG5. Other places close to The Flints include Great Offley (1 mile east), Temple End (2 miles east) and Ley Green (2 miles south-east). We also work in nearby towns such as Hemel Hempstead (13 miles south), Stevenage (7 miles east), St Albans (12 miles south), Welwyn Garden City (11 miles south-east), Harpenden (8 miles south) and Hitchin (4 miles north-east).

Landmarks near The Flints

In The Flints, that means kitchens and buildings near The Bull Public House and the streets around them. The nearest railway station is Luton station, about 4.1 miles south-west of the centre. Nearby you’ll also find Ravensburgh Castle (2.7 miles north-west) and John Dony Field Centre (2.9 miles south-west). Green spaces nearby include Markham's Hill and Pegsdon Hills.

Map of The Flints © OpenStreetMap contributors

When it’s something else

An honest diagnosis matters more to us than a booking, so here’s what TR19 inspection won’t do:

  • Sections with no access, until panels are fitted
  • The legal duty, which stays with the responsible person
  • Heavy deposits found on test, which still need cleaning

If in doubt, phone us on 0345 646 2711 or use the quote form and we’ll say what we think before you book.

Where we work

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

In-house cleaning or a specialist?

If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We will take a look and send you a fixed quote.

Day-to-day cleaning is something your team can do: 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, which is where we come in.

How the visit works

Your trading hours come first. We book the visit for a time the area is closed, whether that is an evening, overnight or a weekend. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the job takes an hour or two for a single kitchen, longer for a large or complex system. Rural roads and tight entrances are worth telling us about before a visit to The Flints.

  1. The visit is arranged for when the kitchen is not busy.
  2. Every part of the system is examined, end to end.
  3. We take WFTT or DTT readings at set points along the system.
  4. We photograph the test points and record any sections we can’t reach.
  5. We send a report setting out the readings, photos and next steps.

How to prepare

  • Let us know about permits to work or site inductions
  • Find the previous report, if there is one
  • Tell us the best time to work, such as after service or at a weekend

How to get a quote

Getting a quote does not take long. Send a few details and pictures, and we usually reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.

Get a quick quote

Read more

Keeping the system healthy

Simple habits between visits make a real difference. Our advice:

  • Flag oily drips near the extract
  • Keep TR19 certificates, readings and reports together
  • Never cook with filters missing
  • Keep to the recommended interval

Where sections couldn’t be reached, the report says where access panels would help. Fitting them before the next clean means the whole system gets done.

Revisit the cleaning interval whenever the menu or hours change. A quick grease test answers the question.

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