Hertfordshire · TR19 inspections and grease testing
TR19 Inspection in Cassiobury
TR19 inspections and grease testing in Cassiobury, surveyed first and signed off with a written report and photos. Ask us for a fixed quote.
- Extracts that may be over the 200 micron mean
- Sites with gaps in their extract records
- Cleaning intervals that may not suit the kitchen
TR19 inspection in Cassiobury, done properly
A fixed schedule doesn’t always match how a kitchen really cooks. Some kitchens build up grease faster than the minimum intervals assume, and only measurement shows it. We give your risk assessment measured figures rather than guesses. Typical jobs include kitchens taken over with no cleaning records and surveys needed before quoting a full clean, across pre-clean surveys, deposit thickness tests and insurer audits.
Around a smaller place like Cassiobury, kitchen extracts tend to belong to pubs, cafés, takeaways and school or care home kitchens. Quieter kitchens still collect grease in the duct, just more slowly, so the interval is set by hours of use and grease readings.
The report is your 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.
- Where
- Cassiobury (WD17, WD18, WD24)
- Region
- Hertfordshire
- Paperwork
- Certificate plus before-and-after photos
- Quotes
- A fixed quote up front
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
What happens if it’s left?
Without readings, you are guessing when to clean. If grease reaches 500 microns anywhere, TR19® Grease calls for immediate spot cleaning, which you will not know without measuring. Even a site near Cassiobury that’s only busy part of the week needs its system checked on a schedule.
Working hours, access and the scale of the site can all change the price. We take each of them into account, and the price is fixed before any work starts.
Why Cassiobury businesses choose us
- CHAS, SafeContractor and ISO 9001
- Every job surveyed first
- One number for every site across the South East and London
- Each visit written up, with pictures
See how cleaning jobs are priced or our accreditations and certificates.
Also near Cassiobury
Also in Cassiobury
Looking after it afterwards
So the system stays in good health:
- Send TR19 audit reports to your insurer on request
- Keep grease filters clean and fitted properly
- Keep TR19 certificates, readings and reports together
- Flag oily drips near the extract
The report recommends when the system should next be cleaned and tested, based on the readings and how the kitchen is used.
Revisit the cleaning interval whenever the menu or hours change. A quick grease test answers the question.
What affects the cost of TR19 inspection
Your quote is based on your site. We consider:
- What state the system is in
- One-off work versus a regular cycle
- Any permits to work or inductions
- The scale of the work
What you pay depends on how big the system is, the condition it’s in and access to every part of it. We give you a fixed price before work begins, so there are no surprises.
What we need to know
Before you ask for a quote, gather:
- Detail shots of panels, filters and grilles
- Where the site is and what kind of site it is
- Your last certificate, test record or report
- Your opening hours and when the area is out of use
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 pictures and your last certificate or report help a lot. You will usually have a quote within one working day.
What a clean will not put right
We will not sell you work that doesn’t address the problem, so these are the things it will not cover:
- Hidden runs that need access panels first
- Installation problems, which fall under design guidance such as DW172
- A faulty or failing extract fan
If you are not sure, just call 0345 646 2711 or email us and we’ll give you a straight answer.
What we work on in Cassiobury
- Access surveys
- Wet film thickness tests
- Insurer audits
- Post-clean checks
- Deposit thickness tests
- Pre-clean surveys
How it works
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that’s 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 a couple of hours for a typical kitchen extract system. We plan the journey to Cassiobury and bring what the job is likely to need.
- After the clean, we arrange a time to check the system.
- The same access points are opened up.
- We repeat the WFTT or DTT readings.
- Photos are taken to show the condition after the clean.
- The results are reported, with anything missed flagged.
Preparing for the visit
- Tell us the best time to work, such as after service or at a weekend
- Make sure someone can let us in and lock up afterwards
- Clear the space around the work
Ask for a quote
There’s no standard price list, because no two systems are the same. We look at your system first, from photos or on a visit, and then give you a fixed quote. To start, phone us on 0345 646 2711 or drop us a line.
Read more
Staff cleaning versus specialist work
Staff cleaning does not replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
FAQs for Cassiobury
Do you work at weekends in Cassiobury?
Yes, evening, overnight and weekend work is normal for us. That way a site in Cassiobury doesn’t have to lose a day’s trading. When you call 0345 646 2711 or use the quote form, mention when the site is quiet.
Who would carry out a food hygiene inspection at a kitchen in Cassiobury?
Food hygiene inspections in Cassiobury are carried out by Watford council. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
Can one contract cover all our sites?
Yes. Tell us the addresses and what each needs and you’ll get one fixed quote.
Can you price the work without visiting?
Usually, yes. Send wide shots, close-ups of any access panels and anything that worries you, and we typically come back within one working day. Some sites still need a visit, and we’ll say so.
How long does grease testing take?
As a guide, it takes anything from an hour for a small canopy and short duct to a good part of a day for a large site. System size and access decide the rest.
Do you carry out TR19 audits for insurers?
Yes, for kitchens across the South East and London. Share the insurer’s request so the report addresses it.
Why survey before a clean?
The survey covers the whole system, grease readings and access to each section. It lets us plan the clean and send you a fixed quote.
What grease levels does TR19 allow?
Two figures matter: a mean of no more than 200 microns between cleans, and 500 microns at any single point, which needs immediate spot cleaning. Our report sets your readings against both.
Grease, kitchens and Cassiobury
The FSA’s food hygiene register shows about 218 cafés, restaurants and staff canteens and about 65 takeaways and sandwich shops in and around Cassiobury, up to about a mile and a half out. Kitchens like these cook for very different hours, and grease testing shows which extracts need cleaning soonest. Environmental health officers from Watford council inspect food businesses in Cassiobury. Extraction counts as kitchen equipment, so its condition can come up on the day. Before-and-after photos from each clean are a simple way to show the extract is in hand. Cassiobury sits within the area of Hertfordshire Fire and Rescue Service. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract.
For schools such as Watford St John's Church of England Primary School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed. For kitchens close to Watford Junction station, where the day often starts early and ends late, the extract can be cleaned overnight. Where a hall near St John's Church, or anywhere in Cassiobury, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Cassiobury is about 1 mile south of Watford, in Hertfordshire. Anywhere in WD17, we cover TR19 inspection for commercial sites. Across Hertfordshire, we cover 381 places, Cassiobury among them. We also work in London, around 17 miles away.
We cover every part of the WD17, WD18 and WD24 postcode area for TR19 inspection and the roads nearby. That includes premises on Hyde Road, Park Road and Cole Road and nearby roads. Main roads around Cassiobury include the A411, so getting to you is simple for evening and night visits. Other places close to Cassiobury include Colney Butts (1 mile south), Holywell (1 mile south-west), Croxley Green (2 miles south-west), Woodside (2 miles north) and Chandler's Cross (3 miles west). We also work in nearby towns such as Hemel Hempstead (7 miles north), St Albans (7 miles north-east), Welwyn Garden City (13 miles north-east), Harpenden (11 miles north), Cheshunt (15 miles east) and Hatfield (10 miles north-east).
Local landmarks in Cassiobury
Around Cassiobury, our work takes us to kitchens and buildings near Croxley Danes School, Cassiobury Park and The Estcourt Tavern. There’s a railway station in Cassiobury itself: Watford Junction station. Nearby you will also find Charter Place (less than half a mile south-east) and Watford General Hospital (0.8 miles south). Open spaces near Cassiobury include Harrow Weald Common.
Multi-site and managed buildings
Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
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 pictures.