Greater London · TR19 inspections and grease testing
TR19 inspections in West Twyford
TR19 inspections and grease testing for businesses, landlords and public buildings in West Twyford. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Extracts that may be over the 200 micron mean
- Kitchen extract systems with no recent grease readings
- Parts of the system left out of past cleans
Your questions about TR19 inspection in West Twyford
Can a school canteen extract in West Twyford be done out of term time?
Yes, out-of-term visits are normal for schools. Around West Twyford, the Food Standards Agency lists about 33 schools and colleges with registered kitchens within a mile and a half or so. Just phone us on 0345 646 2711 or send us an email with your term dates and we will plan around them.
How do you handle parking and loading in West Twyford?
A loading bay, a visitor permit or off-street space near the site in West Twyford makes the visit easier to plan. If the building has a loading slot system, we will book into it.
How long does a TR19 inspection take?
It takes a couple of hours for a typical kitchen extract system. We fit it around when the kitchen is closed or quiet.
What is post-clean verification?
A post-clean check records grease readings and pictures after the work, for our cleans and other firms’ alike.
What happens on a pre-clean survey?
We look at the system from canopy to discharge, take grease readings and check access. From it, we plan the clean and quote a fixed price.
Do you have a 24/7 line?
Yes, 24/7. Our office is open from 8am to 6pm on weekdays, and the emergency line covers the rest.
What about areas you can’t get to?
Anything we can’t reach goes on the report, with a note of where it is, and we explain what access is needed, such as extra access panels in ductwork.
How do you measure grease in a kitchen extract?
We measure the grease at set points with a WFTT or DTT test, then compare them with the TR19® Grease figures.
TR19 inspection in West Twyford
If you’ve taken over a kitchen in West Twyford and do not know when the extract was last cleaned, an inspection is the place to start. We survey the system, measure the grease and tell you what needs doing, so the next step is based on facts. If you are dealing with post-clean verification after another contractor’s clean and insurance renewals needing proof of TR19 cleaning, we can help, from access surveys, deposit thickness tests and post-clean checks onwards.
In a London area like West Twyford, a kitchen extract often passes through shared space on its way out: a riser, a service void, the floors above. A duct fire there can reach parts of the building far from the range, so a regular TR19® clean protects everyone in it.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. We’re also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Where
- West Twyford (NW10, HA0, W5)
- Wider area
- Greater London
- Paperwork
- Certificate and photo report
- Price
- Fixed quote, typically within a working day
- Hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
What we are called out for in West Twyford
You cannot judge grease thickness by eye. Clean filters can hide a heavy layer behind them, which is why readings matter.
It’s time to book a visit if you see:
- Missing TR19 certificates or history
- Cleaning intervals that may not suit the kitchen
- Insurers asking for TR19 evidence
- Parts of the system left out of past cleans
If you cook for passing trade around Stonebridge Park station, the extract can be cleaned between your last and first customer.
What to look for in a quote
- Whether they’re fully insured
- Whether the work can be done while the site is closed
- Whether the quote shows VAT
- Whether the figure could change on the day
What affects the cost of TR19 inspection
There’s no set price list, because sites vary so much. The quote depends on:
- Where the site is and how we reach it
- Working hours and out-of-hours timing
- The condition of the system
- The scale of the work
We don’t list prices on the website, because each job is priced on what it involves. Call for a fixed quote, and we will talk you through it.
What we need to know
What to send for a quote:
- A few general shots of the system
- How we’d reach plant on a roof or in a plant room
- Detail shots of panels, filters and grilles
- The times we could work without disrupting the site
Quoting starts with a diagnosis, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work so you know the cost before we start.
Looking after it afterwards
Once we’ve finished, these simple steps help:
- Flag changes in how much frying the kitchen does
- Do not box in or cover duct access panels
- Store grease readings where your insurer can see them
- Diary the next grease test and clean
Any access problems we found are listed with a suggested fix. With panels fitted, the next clean can cover every section.
Close the access gaps found during inspection, so every part of the duct can be cleaned.
What a clean will not put right
We’ll always give you a straight diagnosis, so here’s what TR19 inspection will not do:
- The grease itself, which needs a full or spot clean
- Fan breakdowns, which need a repair visit
- The responsible person’s own fire risk assessment
If in doubt, call us on 0345 646 2711 or send us an email and we’ll say what we think.
What the work covers
- Pre-clean surveys
- Deposit thickness tests
- Insurer audits
- Post-clean checks
- Wet film thickness tests
- Access surveys
Towns and villages near West Twyford
Other services in West Twyford
How it works
There’s very little for your team to do on the day. A contact on site lets us in at the agreed time and points us to the system, and we take it from there. Before we leave, the area is tidied and the paperwork follows. In West Twyford, as across London, we normally work overnight or at weekends and hand the site back ready to open.
- First we book a time that will not disrupt cooking.
- Every part of the system is examined, end to end.
- Grease thickness is measured at set points by WFTT or DTT.
- Photos are taken at each point, and access gaps noted.
- You get a report with readings, photos and recommendations.
How to prepare
- Tell us where we can park and unload
- Name a contact who can let us in at the agreed time
- Allow time for equipment near the work to be turned off and cool down
Get a fixed quote
If you need TR19 inspection in West Twyford, call us on 0345 646 2711 or drop us a line. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. We typically send a fixed quote within one working day.
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In-house cleaning or a specialist?
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
Grease, kitchens and West Twyford
Food Standards Agency records include about 30 pubs and bars and about 7 hotels and guest houses across West Twyford and its immediate surroundings (about a mile and a half). Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. West Twyford is covered by London Fire Brigade. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. Overnight is the normal time to clean a London kitchen extract, so trading is not affected.
If you run a church or community hall kitchen, near Church of St Mary or elsewhere in West Twyford, its extract still collects grease from every lunch and event. For schools such as West Twyford Primary School, kitchen extract cleaning is usually booked for the holidays, when the canteen is closed.
West Twyford is about 2 miles west of Harlesden, in Greater London. Every kind of commercial site in West Twyford, we can take on TR19 inspection. Visits can be booked for evenings, overnight or weekends so trading is not interrupted. 764 places in Greater London are on our list, large and small. We also work in London, about 8 miles from West Twyford.
TR19 inspection in NW10, HA0 and W5 is surveyed, quoted and booked the same way as anywhere else. Streets in the area include Water Road, Dukes Road and Abbey Road, and we cover them all for TR19 inspection. Main roads around West Twyford include the A40, which makes travel easy for evening and night visits. Neighbouring places we cover for TR19 inspection include Park Royal (1 mile south-east), Alperton (1 mile north-west), Stonebridge Park (1 mile north-east), Hanger Hill (1 mile south) and Stonebridge (1 mile north-east). Within a short drive, we also cover London (8 miles east), City of Westminster (6 miles east), Marylebone (6 miles east), Kensington (4 miles south-east), St Pancras (7 miles east) and Shoreditch (9 miles east).
Local landmarks in West Twyford
Locally, jobs take us to businesses close to Ace Cafe London pub, Library for Iranian Studies and Alperton Community School, among other places. Also close by are St. Raphael's Edible Garden (1.3 miles north-east) and The Ellen Wilkinson School for Girls (1.1 miles south). The nearest railway station is Stonebridge Park station, roughly 0.8 miles north of the centre. Other landmarks nearby include Central Middlesex Hospital (0.6 miles east) and London Designer Outlet (1.6 miles north). For a walk, there’s Hanger Hill Wood and Castlebar Hill.
Why act early in West Twyford
Sites in West Twyford that have never measured grease can’t tell whether their cleaning interval suits the kitchen. Testing gives you the evidence to set it properly. A building in West Twyford may have flats or offices above and alongside, and a fault in the system can affect them too.
When the work has to happen, how we reach it and how big the site is all affect the cost. We take each of them into account, and the price is fixed before we start.
Why choose Duct Doctor in West Twyford
- Fixed quotes, normally within one working day
- CHAS and SafeContractor accredited, with ISO 9001
- Ventilation hygiene specialists since 2009
- One contact for all your sites in London and the South East
Take a look at what affects the cost or how to check a contractor.