Hertfordshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Jersey Farm, Hertfordshire
TR19 inspection for Jersey Farm and the surrounding area: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Kitchens taken over with no cleaning records
- Extracts that may be over the 200 micron mean
- Pre-clean surveys before a first TR19 clean
How we handle TR19 inspection in Jersey Farm
A grease test measures how thick the grease is inside a kitchen extract system. 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, pre-clean surveys and post-clean checks, and the jobs we see most are heavy grease suspected in the plenum or ducts and sections of duct that can’t be reached.
In a smaller place like Jersey Farm, the kitchens with extract systems are more likely to be a pub, a café, a takeaway or a school or care home kitchen than a big restaurant. Quieter kitchens still collect grease in the duct, just more slowly, so cleaning is planned around how much it cooks and what the readings show.
Every visit ends with a written report and photos, so you have a record of what was done and when. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Location
- Jersey Farm (AL4)
- Wider area
- Hertfordshire
- Paperwork
- TR19® certificate and photo report
- Quotes
- Fixed quote, typically within a working day
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Grease, kitchens and Jersey Farm
The FSA’s food hygiene register shows about 15 restaurants, cafés and works canteens and about 12 takeaways in Jersey Farm and the streets around it, up to about 1.5 miles out. For any of them with a canopy, measuring grease is better than guessing when to clean. The fire and rescue service for Jersey Farm is Hertfordshire Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. Food hygiene inspections in Jersey Farm are the job of St Albans City council’s environmental health team. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Before-and-after photos from each clean are a simple way to show the extract is in hand.
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Hill End Hospital is the nearest hospital to Jersey Farm, about 1.5 miles south. Historic houses near Jersey Farm, such as Childwickbury Manor about 2.3 miles west, are a reminder that older buildings with event kitchens can have long, awkward duct routes.
Jersey Farm is about 2 miles north-east of St Albans, in Hertfordshire. Whatever kind of site you run in Jersey Farm, we can take on TR19 inspection. We can work out of hours so the site keeps running. Jersey Farm is one of 381 towns, villages and districts in Hertfordshire we cover for TR19 inspection. For sites nearby, see our London page, about 21 miles away.
Every address in AL4 is covered for TR19 inspection, from busy streets to back roads. Streets in the area include House Lane, Jersey Lane and Twyford Road, and we cover them all for TR19 inspection. Close by, we work in Cooper's Green (1 mile east), Smallford (1 mile south-east), Coleman Green (2 miles north-east), Tyttenhanger (2 miles south) and Sleapshyde (2 miles south-east). Further out, we also cover Watford (9 miles south-west), Hemel Hempstead (7 miles west), Stevenage (11 miles north-east), Welwyn Garden City (5 miles north-east), Harpenden (4 miles north-west) and Hitchin (12 miles north).
What’s near Jersey Farm
Typical jobs here are in premises near Verulam School, Clarence Park and Blackberry Jack pub, among other places. Jersey Farm’s nearest station is St Albans station, about 1.9 miles south-west of the centre. Nearby you will also find Hill End Hospital (1.5 miles south) and The Maltings (2.2 miles south-west). Not far away are The Wick Local Nature Reserve and Verulamium Lake.
Your questions about TR19 inspection in Jersey Farm
Which environmental health team covers Jersey Farm?
That is St Albans City council, whose environmental health officers carry out food hygiene inspections in Jersey Farm. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.
Do you work at weekends in Jersey Farm?
Yes, out-of-hours work is a big part of what we do. It means the site in Jersey Farm keeps running as normal. Just ring 0345 646 2711 or send us an email with your opening times and we will plan around them.
What is post-clean verification?
A post-clean check records grease readings and photos after the work, for our cleans and other firms’ alike.
How do you measure grease in a kitchen extract?
The Wet Film Thickness Test (WFTT) and Deposit Thickness Test (DTT) measure how thick the grease is at a given point. We take readings at set points from canopy to fan.
Do you carry out TR19 audits for insurers?
Yes. Many insurers ask for proof of TR19 cleaning and inspection, and our audit gives a clear record of the system’s condition, with recommendations where something needs doing.
When should we have our next grease test?
Enough to be sure grease stays within the TR19® Grease figures between cleans. If readings rise, the interval should shorten.
What do you need from me for a quote?
Some pictures and a quick description of the system plus the address and your hours. If we need more, we will ask.
How long does grease testing take?
It takes anything from an hour for a small canopy and short duct to a good part of a day for a large site. The visit is timed so cooking is not disrupted.
What happens on the day
The visit has three parts: set-up, the treatment itself and the sign-off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with photos. The middle part takes longest, which takes anything from an hour for a small canopy and short duct to a good part of a day for a large site. Tell us about any gates, ladders or locked plant areas at your site near Jersey Farm when you book.
- 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.
- We photograph each area to record how it was left.
- We report the findings and flag any areas that need more work.
Before we arrive
- Mention any locked doors, roof access or ceiling voids
- Let us know when the site is closed or quiet
- Arrange a key holder or contact on site
Ask for a quote
Every quote begins with a look at the system, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work, before any work starts.
Related advice
Between visits
Results last longer with the right care. We suggest:
- Clean grease off the canopy between professional cleans
- Have the latest report ready for insurance renewals
- Keep access panels clear and unpainted
- Store grease readings where your insurer can see them
Keep the verification report next to the certificate it relates to. The pair gives a clear record of the clean and the check.
Test grease regularly instead of relying on the calendar. It shows if build-up is speeding up.
What the work involves, part by part
Vertical risers
Vertical risers take the extract up through the floors. Grease can run down and collect at the base, so the base is a key test point.
Canopy and plenum
The canopy itself is checked inside and out, with readings where grease collects.
Signs you need TR19 inspection in Jersey Farm
Records can go missing when a business changes hands or contractors. Without them, nobody knows how much grease is in the system or when it was last cleaned.
Most sites get in touch after spotting one of these:
- Checking the result of a recent clean
- Kitchens taken over with no cleaning records
- Cleaning intervals that may not suit the kitchen
- Surveys needed before quoting a full clean
If you run a church or community hall kitchen, near Saint Mary's or elsewhere in Jersey Farm, its extract still collects grease from every lunch and event.
What your quote should include
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- What happens if part of the system can’t be accessed
- Whether a written report and photos are included
- Whether the figure could change on the day
What affects the cost of TR19 inspection
Your quote is based on your site. We consider:
- Whether we need access equipment or extra panels
- Site requirements such as sign-in and permits
- The scale of the work
- Where the site is and how we reach it
One small site or a whole estate, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before work begins.
What to send for a quote
Many jobs can be priced from pictures and some basics. Send what you can of the following:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Any access panels or hatches you can see
- The times we could work without disrupting the site
- Any previous report or certificate
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
When it’s something else
We’d rather tell you now than book work that won’t help, so these are the things it won’t cover:
- The legal duty, which stays with the responsible person
- Heavy deposits found on test, which still need cleaning
- Installation problems, which fall under design guidance such as DW172
Not sure which it is? You can call us on 0345 646 2711 or send us an email and we’ll tell you honestly.
Parts of the system we cover
- Post-clean checks
- Wet film thickness tests
- Access surveys
- Pre-clean surveys
- Deposit thickness tests
- Insurer audits
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, they should report it rather than try to fix it. We will take a look and send you a fixed quote.
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, next to our reports.