Hertfordshire · TR19 inspections and grease testing
TR19 inspections in Fields End
TR19 inspection for commercial sites in Fields End and across Hertfordshire. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Sites with gaps in their extract records
- Sections of duct that cannot be reached
- An insurer’s request for a TR19 audit
Staff cleaning versus specialist work
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
How we handle TR19 inspection in Fields End
Grease thickness testing tells you how much grease is sitting in the canopy, ducts and fan. Readings are taken at set points using the Wet Film Thickness Test (WFTT) or the Deposit Thickness Test (DTT). The results show whether the system needs cleaning and how soon. We’re often asked to deal with confirming a clean reached the whole system and parts of the system left out of past cleans, on insurer audits, pre-clean surveys and wet film thickness tests.
Work in a small place like Fields End starts with a call to agree access and timings, and the clean itself is the same full TR19® job as in any town: canopy to discharge, then a TR19® certificate and a photo report.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Place
- Fields End (HP1)
- Wider area
- Hertfordshire
- Records
- TR19® certificate and photo report
- Quotes
- A fixed quote up front
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Checked
- 30 October 2026
How it works
Your trading hours come first. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes a morning or less for one kitchen, more where there are several systems. If you can send pictures, we can arrive in Fields End knowing what to expect.
- The visit is arranged for when the kitchen isn’t busy.
- Every part of the system is examined, end to end.
- We take WFTT or DTT readings at set points along the system.
- Photos are taken at each point, and access gaps noted.
- The findings go into a report with readings, pictures and a recommended next clean.
How to prepare
- Plan for cooking equipment or plant to be off before we arrive
- Have your last certificate or report to hand
- Arrange a key holder or contact on site
Getting a quote
Want a quote for TR19 inspection? Please ring 0345 646 2711, or send details by email and tell us about the site. We’ll explain what we’d do and send a fixed quote before anything is booked.
Related advice
Part by part
Horizontal duct runs
Grease settles on the floor of horizontal ducts as the air cools. We test at points along the run through access panels.
Schools, hospitals and care homes
We fit testing around service times and school holidays to avoid disruption.
Keeping the system healthy
No system stays clean for ever, but care slows the build-up. A few tips:
- Send TR19 audit reports to your insurer on request
- Store grease readings where your insurer can see them
- Keep canopy edges and gutters wiped down
- Book the next test on the date in the report
Keep the verification report next to the certificate it relates to. Together they show the system was cleaned and checked.
Test grease regularly instead of relying on the calendar. It shows if build-up is speeding up.
Common questions in Fields End
Who would carry out a food hygiene inspection at a kitchen in Fields End?
Kitchens in Fields End are inspected by Dacorum council’s environmental health officers. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.
Which fire authority looks after Fields End?
It’s Hertfordshire Fire and Rescue Service, which covers Fields End. TR19® isn’t law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
What accreditations do you have?
We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we are fully insured.
What does a pre-clean survey involve?
We look at the system from canopy to discharge, take grease readings and check access. It lets us plan the clean and send you a fixed quote.
What grease levels does TR19 allow?
TR19® Grease says the mean shouldn’t exceed 200 microns between cleans, and anywhere at 500 microns or more needs spot cleaning straight away.
What is a WFTT or DTT grease test?
WFTT and DTT are the two methods for measuring grease thickness, in microns. Readings are taken at set points through the system.
What types of premises do you cover?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
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.
How we price TR19 inspection
Sites vary more than people expect. The main factors:
- The number of sites or systems
- The times the site is available
- What state the system is in
- Any permits to work or inductions
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you’re unsure, call us on 0345 646 2711 or use the quote form for straight advice and a fixed quote.
What to send for a quote
Before you ask for a quote, gather:
- How we’d reach plant on a roof or in a plant room
- The paperwork from the last visit, if you have it
- Your opening hours and when the area is out of use
- The site address and the type of premises
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.
Signs you need TR19 inspection in Fields End
Not every section of a kitchen extract is easy to get to, so those sections can be skipped time and again. An inspection of a system in Fields End shows where access panels are missing, so the gaps can be closed.
Look out for any of the following:
- Systems cleaned on a calendar with no measurements
- An insurer’s request for a TR19 audit
- Missing access panels found on survey
- Surveys needed before quoting a full clean
Healthcare kitchens cannot easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Fields End is Hemel Hempstead Hospital, about 1.9 miles south-east.
Questions to ask before you book
- What happens if part of the system can’t be accessed
- Whether the price is fixed
- Proof of accreditation you can verify
- When the next visit should be, and why
Multi-site and managed buildings
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. With shared responsibility, good records help everyone.
If you look after several sites, 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.
Nearby places to Fields End
What else we do in Fields End
Grease, kitchens and Fields End
Food Standards Agency data counts about 20 cafés, restaurants and staff canteens and about 14 takeaways and sandwich shops within roughly a mile and a half of the centre of Fields End. Where they cook under a canopy, a grease reading is the way to tell whether the extract is due a clean. Fields End sits within the area of Hertfordshire Fire and Rescue Service. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. It’s Dacorum council that sends environmental health officers to food businesses in Fields End. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. A TR19® certificate and photo report after each clean gives you a record to show an inspector.
For schools such as John F Kennedy Catholic School, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed. Where a hall near St Alban's Church, or anywhere in Fields End, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Fields End is about 2 miles west of Hemel Hempstead, in Hertfordshire. Sites in Fields End get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with pictures. Fields End is one of 381 towns, villages and districts in Hertfordshire where we work for TR19 inspection. You can also see our page for Milton Keynes, roughly 22 miles from Fields End.
Postcode districts we cover here for TR19 inspection: HP1. Streets in the area include Fields End Lane and Pouchen End Lane, and we cover them all for TR19 inspection. Close by, we work in Chaulden (1 mile south-east), Potten End (1 mile north-west), Bourne End (1 mile south), Frithsden (1 mile north-west) and Nettleden (2 miles north). Further out, we also cover Watford (8 miles south-east), St Albans (8 miles east), Welwyn Garden City (14 miles east), Harpenden (8 miles north-east), Hatfield (12 miles east) and Borehamwood (12 miles south-east).
Near you in Fields End
Typical jobs here are in premises near Top of the World pub, Gadebridge Park and Micklem Primary School. The nearest railway station is Hemel Hempstead station, about 1.6 miles south-east. Nearby you will also find Hemel Hempstead Hospital (1.9 miles south-east). The countryside around Fields End includes Long Deans.