Greater London · TR19 inspections and grease testing
TR19 Inspection in Bentley Heath
TR19 inspections, grease thickness testing, pre-clean surveys and post-clean verification in Bentley Heath, surveyed first and signed off with a written report and pictures. Ask us for a fixed quote.
- Confirming a clean reached the whole system
- Insurers asking for TR19 evidence
- Kitchens taken over with no cleaning records
What your team can do, and what needs us
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
TR19 inspection in Bentley Heath, done properly
Insurance policies often require evidence of TR19® cleaning and inspection. Missing records can lead to a claim being reduced or refused. A TR19 audit sets out the system’s condition, with readings and pictures, for sites in Bentley Heath and the rest of Greater London. Common call-outs are for insurance renewals needing proof of TR19 cleaning and kitchens whose menu or hours have changed, across deposit thickness tests, post-clean checks and pre-clean surveys.
London kitchens tend to trade late and open early, so extract cleaning in Bentley Heath is typically done overnight, after the last service. Before the clean, we agree loading, parking and roof access with whoever manages the building.
A written report with photos follows each visit, so there’s a dated record of the work. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Where
- Bentley Heath (EN5)
- Region
- Greater London
- Reporting
- Certificate and photo report
- Quotes
- Fixed quote, usually within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
The process
Our technicians bring everything the work needs, including protection sheets, the right tools and access kit. You only need to give us clear access and switch off what needs to be off. The visit takes an hour or two for a single kitchen, longer for a large or complex system. In Bentley Heath, as across London, we usually work overnight or at weekends and hand the site back ready to open.
- The visit is arranged for when the kitchen isn’t busy.
- We look over the canopy, plenum, ducts, fan and discharge.
- We take WFTT or DTT readings at set points along the system.
- Photos are taken at each point, and access gaps noted.
- You get a report with readings, photos and recommendations.
Preparing for the visit
- Plan for cooking equipment or plant to be off before we arrive
- Tell us about site rules, permits or sign-in
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
Getting a quote
Every quote begins with a look at the system, either from photos and details you send or from a site visit. Then we send a fixed price, before work begins.
Read more
Fixed quotes for TR19 inspection in Bentley Heath
The diagnosis comes before the price. We look at:
- Whether we need access equipment or extra panels
- The scale of the work
- Whether several sites go on one quote
- The condition of the system
Several systems or sites on one quote often makes better use of the time. Tell us about everything you’d like looked at and we will price it together.
What to send for a quote
You do not need the technical terms. Just send:
- The site address and the type of premises
- Your last certificate, test record or report
- Your opening hours and when the area is out of use
- Where the plant sits or the system leaves the building, such as a roof or outside wall
To help us quote: the address, the type of site and when it’s open, a few photos and any previous report or certificate. Then phone us on 0345 646 2711, or email photos.
Honest limits
A few issues sit outside what this work can do:
- The responsible person’s own fire risk assessment
- Mechanical faults in the extract
- Installation problems, which fall under design guidance such as DW172
If in doubt, phone us on 0345 646 2711 or send us an email and we will say what we think.
Where we work
- Post-clean checks
- Access surveys
- Pre-clean surveys
- Deposit thickness tests
- Insurer audits
- Wet film thickness tests
TR19 inspection around Bentley Heath
Food Standards Agency records include about 9 pubs and bars in Bentley Heath and the streets around it, up to about 1.5 miles out. A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. Food hygiene inspections in Bentley Heath are the job of Hertsmere council’s environmental health team. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Our report lists what was cleaned and when, which is useful to have ready. Fire safety in Bentley Heath falls to London Fire Brigade. 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.
Wyllyotts Manor, about 0.9 miles north, is one of the historic houses near Bentley Heath; if you run event catering at a venue like that, cleans can be booked between functions. If you run a church or community hall kitchen, near Church of King Charles and the Martyr or elsewhere in Bentley Heath, its extract still collects grease from every lunch and event.
Bentley Heath is about 1 mile south-west of Potters Bar, in Greater London. From the centre of Bentley Heath to the outskirts, TR19 inspection is available to all kinds of commercial premises, from a single unit to a large public building. Our area takes in 764 places across Greater London, from busy centres to quieter spots. London is in our area too, about 13 miles from Bentley Heath.
Postcode districts we cover here for TR19 inspection: EN5. We also cover Potters Bar (1 mile north-east), Monken Hadley (1 mile south), Hadley Wood (2 miles south-east), Underhill (3 miles south) and Northaw Valley (3 miles east). Further out, we also cover London (13 miles south), City of Westminster (12 miles south), Marylebone (12 miles south), Kensington (13 miles south), St Pancras (11 miles south) and Shoreditch (12 miles south-east).
What’s near Bentley Heath
Around Bentley Heath, our work takes us to kitchens and buildings near King George's Fields (Monken Hadley), Dame Alice Owen's School and Duke of York pub. For rail, the closest station is Potters Bar station, roughly 1 mile north of the centre. Other landmarks nearby include Barnet General Hospital (2.4 miles south) and Potters Bar Museum (0.9 miles north). Open spaces near Bentley Heath include Furzefield Wood and Lower Halfpenny and Darland's Lake.
FAQs for Bentley Heath
Can you come to Bentley Heath after we close?
Yes, evening, overnight and weekend work is normal for us. It means the site in Bentley Heath keeps running as normal. When you ring 0345 646 2711, or email photos, mention when the site is quiet.
How do you handle parking and loading in Bentley Heath?
Parking and loading in London need planning, so tell us about bays, permits and building rules when you book. Much of our London work is done overnight, which helps.
What is grease thickness testing?
WFTT and DTT are the two methods for measuring grease thickness, in microns. We take readings at set points from canopy to fan.
Can you look after several sites?
Yes. We work across South East England and London, so we can schedule a run of sites as one programme. Every site has its own report.
Do you offer maintenance contracts?
Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. Each report recommends when the next visit should be.
What is TR19?
It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It covers how systems are inspected, cleaned and checked and expects a risk-based approach.
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. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
Where does the waste go?
It leaves the site with us when we go. During the work, it’s contained so the area stays clean.
What we are called out for in Bentley Heath
Menus, opening hours and cooking styles change over time, and more frying or longer hours mean more grease. A cleaning interval set years ago may no longer fit.
These are the problems we see most often:
- Sites with gaps in their extract records
- Extracts that have never been grease tested
- Cleaning intervals that may not suit the kitchen
- Heavy grease suspected in the plenum or ducts
School kitchens, at schools like Pope Paul Catholic Primary School for example, are typically cleaned in the holidays so no lunches are lost.
What your quote should include
- Whether inaccessible sections are listed on the report
- What’s included in the scope, part by part
- If they look at the system before pricing
- Whether the work can be done while the site is closed
What the work involves, part by part
Extract fan and discharge
A greasy fan works harder and wears faster. The inspection shows whether it needs cleaning now.
Horizontal duct runs
Bends and long runs can hold heavy deposits, well away from where anyone looks.
Nearby places to Bentley Heath
Other services in Bentley Heath
What happens if it’s left?
Catching heavy deposits early keeps the fix small. Left alone, grease keeps building between cleans. Planning ahead in Bentley Heath lets you pick a quiet night rather than lose a busy one.
Every site is different, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all make a difference.
Why choose Duct Doctor in Bentley Heath
- One contact for all your sites in London and the South East
- Each visit written up, with pictures
- Trading since 2009
- Fixed quotes from a survey or photos
Take a look at how cleaning jobs are priced or our accreditations.