Greater London · TR19 inspections and grease testing
TR19 inspections and grease testing in Holywell, Greater London
TR19 inspections and grease testing in Holywell, surveyed first and signed off with a written report and pictures. Ask us for a fixed quote.
- Ductwork where grease may be over the TR19 limits
- Kitchens whose menu or hours have changed
- Kitchens taken over with no cleaning records
TR19 inspection for kitchens and businesses in Holywell
Think of a TR19 inspection as the diagnosis before the treatment. We look at the system, take grease readings and photograph what we find, so the quote and the clean fit the real system. If you’re dealing with insurers asking for TR19 evidence and heavy grease suspected in the plenum or ducts, we can put it right.
In London, few kitchens can spare a day to close, so work in Holywell is normally booked for the night or the early hours. Parking, loading and access to the roof are agreed with the building before the night of the clean.
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.

- Place
- Holywell (WD18, WD3, WD99)
- Wider area
- Greater London
- Records
- Certificate plus before-and-after pictures
- Price
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
What affects the quote in Holywell
The survey tells us what the work involves. We look at:
- Access, including roofs, risers and ceiling voids
- What state the system is in
- A single visit or a regular plan
- The times the site is available
One small site or a whole estate, we price it on the same basis: what needs doing, how we get to it and when. You’ll have a fixed price before any work starts.
What to send for a quote
To help us quote quickly, please include:
- The site address and the type of premises
- Photos showing the whole system and its surroundings
- Any symptoms, from odd noises to smells or leaks
- The times we could work without disrupting the site
For TR19 inspection in Holywell, ring 0345 646 2711, or send details by email. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. A fixed quote typically follows within one working day.
Towns and villages near Holywell
More services for Holywell
Kitchen extracts in Holywell
The FSA’s data shows about 28 bars, pubs and nightclubs and about 6 hotels, B&Bs and guest houses registered within about 1.5 miles of central Holywell. Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. It’s Watford council that sends environmental health officers to food businesses in Holywell. 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. In London, kitchens are usually cleaned overnight, when the kitchen is closed and loading is easier.
A hospital like Watford General Hospital, about 0.9 miles east, is the kind of site where a kitchen may cook for patients, staff and visitors all day. For schools such as Westfield Academy, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed.
Holywell is about 2 miles south-west of Watford, in Greater London. We provide TR19 inspection for commercial premises of every kind in Holywell and the rest of Greater London. We cover 764 places across Greater London, from busy centres to quieter spots. You can also see our page for London, roughly 17 miles from Holywell.
TR19 inspection in WD18, WD3 and WD99 follows the same survey, fixed quote and written report as everywhere else we cover. You’ll find streets such as Epsom Road, Combe Road and Ascot Road, and we cover them all for TR19 inspection. You’ll find Holywell on the A4145, so it’s easy for us to get to for TR19 inspection. We also cover the places around Holywell: Croxley Green (1 mile west), Colney Butts (1 mile east), Cassiobury (1 mile north-east), Moor Park (2 miles south) and Eastbury (2 miles south). Larger places within reach include City of Westminster (15 miles south-east), Marylebone (15 miles south-east), Kensington (14 miles south-east), Hampstead (12 miles south-east), Ruislip (5 miles south) and Brompton (15 miles south-east).
Around Holywell
Around Holywell, our work takes us to kitchens and buildings near King George V Playing Fields, Croxley Danes School and The Red House and the streets around them. For rail, the closest station is Watford High Street station, roughly 1.4 miles east of the centre. A little further out are Hertfordshire Fire Brigade Museum (1.5 miles east) and Watford General Hospital (0.9 miles east). Open spaces near Holywell include Tumbling Bay and Chorleywood Common.
Landlords, agents and facilities managers
Multi-site operators often want one contractor and one number. We work across London and the South East, so a run of sites can go into one programme and kept on a regular cycle.
We also work for facilities teams across offices, schools and healthcare across Greater London. Work can be phased by floor, building or site around the people who use them.
When it’s something else
A few issues sit outside what this work can do:
- The responsible person’s own fire risk assessment
- Parts of the duct nobody can reach yet
- Mechanical faults in the extract
If you’re not sure, just ring 0345 646 2711 or send us an email and we will give you a straight answer.
Where we work
- Insurer audits
- Access surveys
- Post-clean checks
- Deposit thickness tests
- Pre-clean surveys
- Wet film thickness tests
Do you need TR19 inspection in Holywell?
Some parts of a system are hard to reach, and grease can be missed there clean after clean. A survey finds the sections that cannot be reached, so the gaps can be closed.
Common reasons sites call us include:
- Sections of duct that cannot be reached
- Kitchens taken over with no cleaning records
- Extracts that have never been grease tested
- An insurer’s request for a TR19 audit
A hall kitchen that only cooks for events, whether near St Oswald's Parish Church or elsewhere in Holywell, still needs its extract cleaned, just less often.
What your quote should include
- Whether VAT is included
- What happens if part of the system cannot be accessed
- When they can work, and whether that is outside your opening hours
- Proof of insurance
FAQs for Holywell
Is parking a problem for work in Holywell?
Parking and loading in London need planning, so tell us about bays, permits and building rules when you book. Where restrictions apply in the day, an evening or overnight visit normally gets round them.
Do you work at weekends in Holywell?
Yes. We work evenings, overnight and at weekends. The work in Holywell can fit around your hours. Your opening times are the first thing we ask for.
How far ahead should we book?
For planned work, earlier is better, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.
What do the grease readings need to be?
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.
How do you measure grease in a kitchen extract?
WFTT and DTT are the two methods for measuring grease thickness, in microns. Readings are taken at set points through the system.
What about areas you can’t get to?
We record them on the report, with pictures where possible, and we tell you what would make it reachable, for example new access panels.
Is a quote from pictures possible?
Often, yes. With good pictures, the site type and your last report, we can price many jobs. Larger or hidden systems need a survey on site first.
Do you offer emergency callouts?
Yes. Our emergency line runs 24/7, for problems that cannot wait. Call us any time and explain what’s happened.
The process
The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. The work on site takes around an hour or two per canopy and duct system, and we clear up before we go. Expect the work in Holywell to happen after your last customer leaves, not during trading.
- We go through any past certificates and reports.
- The layout is traced from the canopy to the discharge.
- Access panels are located and any missing ones noted.
- Grease readings are taken and photos recorded.
- We report back with readings and a fixed quote.
Before we arrive
- Mention any sign-in, permit or induction we need
- Tell us where we can park and unload
- Make sure someone can let us in and lock up afterwards
Get a fixed quote
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before any work starts.
Advice
Different parts, different methods
Horizontal duct runs
Bends and long runs can hold heavy deposits, out of sight of the kitchen.
Extract fan and discharge
We look at where the extract discharges outside, since grease reaches the very end of the system.
What your team can do, and what needs us
Staff cleaning doesn’t replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but the parts you can’t see still need a specialist at the right interval.
Keep a record of what your team does. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, alongside our reports.