Greater London · TR19 inspections and grease testing
TR19 inspections in Ruislip
Specialist TR19 inspection for Ruislip: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Uncertainty over how often to clean
- Systems cleaned on a calendar with no measurements
- Ductwork where grease may be over the TR19 limits
TR19 inspection for kitchens and businesses in Ruislip
Under TR19® Grease, the mean grease thickness should stay at or below 200 microns between cleans, and 500 microns or more at any point needs immediate spot cleaning. Testing is how you know where your system stands. The work covers access surveys, deposit thickness tests and pre-clean surveys, and common reasons people get in touch are insurance renewals needing proof of TR19 cleaning and systems that need surveying before cleaning.
London kitchens tend to trade late and open early, so extract cleaning in Ruislip is typically done overnight, after the last service. Before the clean, we agree loading, parking and roof access with whoever manages the building.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Place
- Ruislip (HA4, HA5, HA6, UB5)
- Region
- Greater London
- Records
- Certificate plus before-and-after photos
- Quote
- A fixed price before any work starts
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
How we price TR19 inspection
Before we fix a price, we need to know a few things. We look at:
- When the work can happen, such as evenings, overnight or weekends
- The number of sites or systems
- What state the system is in
- Whether it’s a one-off visit or part of a schedule
A single site or a whole portfolio, we price it on the same basis: the work involved, the access and the timing. You will have a fixed price before work begins.
What to send for a quote
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- When the site is open and when it’s quiet
- How we’d reach plant on a roof or in a plant room
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Photos showing the whole system and its surroundings
To get a fixed quote, call 0345 646 2711 or use the quote form with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. We usually come back within one working day.
What your team can do, and what needs us
When your team notices a problem 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 can diagnose it and quote.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.
Towns and villages near Ruislip
Also in Ruislip
When something else is needed
To be straight with you, there are a few things this work will not fix:
- Hidden runs that need access panels first
- The grease itself, which needs a full or spot clean
- Mechanical faults in the extract
Not sure which it is? You can call us on 0345 646 2711 or send us an email and we’ll tell you honestly before you book.
What we work on in Ruislip
- Insurer audits
- Wet film thickness tests
- Pre-clean surveys
- Deposit thickness tests
- Post-clean checks
- Access surveys
What TR19 inspection looks like in Ruislip
There are about 138 restaurants, cafés and canteens and about 70 takeaways in Ruislip and the streets around it, up to about 1.5 miles out, according to the Food Standards Agency’s register. For any of them with a canopy, measuring grease is better than guessing when to clean. The fire and rescue service for Ruislip is London Fire Brigade. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. Overnight is the normal time to clean a London kitchen extract, so trading is not affected.
Volunteers running a hall kitchen near St Lawrence, or anywhere in Ruislip, may not know when the extract was last cleaned, and a grease test settles it. If you run catering at a healthcare site, such as a hospital like Northwood and Pinner Cottage Hospital about 1.9 miles north, the extract may need cleaning more often than a part-time kitchen.
Ruislip is about 12 miles west of City of Westminster, in Greater London. We carry out TR19 inspection for businesses, landlords and public buildings in Ruislip and the rest of Greater London. Our Greater London coverage runs to 764 places, and Ruislip is one of them. We also work in London, around 14 miles away.
Every address in HA4, HA5, HA6 and UB5 is covered for TR19 inspection, from busy streets to back roads. If you need TR19 inspection at premises on High Street, The Uplands and Hawtrey Drive or anywhere close by, we can help. You’ll find Ruislip on the B466 and B472, which makes it straightforward for our technicians to reach for TR19 inspection. Other places close to Ruislip include Ruislip Manor (1 mile south), Ruislip Gardens (1 mile south), Newyears Green (2 miles west), Ickenham (2 miles south-west) and Hillingdon (3 miles south-west). Within a short drive, we also cover London (14 miles east), City of Westminster (12 miles east), Marylebone (12 miles east), Kensington (10 miles south-east), St Pancras (13 miles east) and Shoreditch (15 miles east).
Landmarks near Ruislip
Around Ruislip, our work takes us to kitchens and buildings near Heathfield School, Bishop Ramsey School and Church Field Gardens and the streets around them. The nearest railway station is West Ruislip station, about 1.3 miles west of the centre. Other landmarks nearby include Heath Robinson Museum (1.5 miles north-east) and St. George's Shopping Centre (3 miles east). For a walk, there’s Horse Shoe Bay and Northala Fields.
What happens if it’s left?
Finding a hotspot early means a targeted spot clean rather than a bigger problem later. Ignored, the layer only gets thicker. London buildings are shared, so a fire or failure in one system can reach the neighbours above and beside you.
Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we will explain each part.
What you get with us
- Survey first, then a fixed quote
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- One contact for all your sites in London and the South East
- Full insurance on every job
When to call us in Ruislip
TR19® is the benchmark that insurers, fire officers and EHOs refer to. TR19® itself is not law, but the Regulatory Reform (Fire Safety) Order 2005 requires the responsible person to assess and reduce fire risk, and in a kitchen that means keeping grease under control.
These are the problems we see most often:
- Confirming a clean reached the whole system
- Sections of duct that cannot be reached
- An insurer’s request for a TR19 audit
- Sites with gaps in their extract records
Ickenham Hall, about 1.7 miles south-west, is one of the historic houses near Ruislip; if you run event catering at a venue like that, cleans can be booked between functions.
What to look for in a quote
- Proof of insurance
- How they set the interval to the next visit
- What’s included in the scope, part by part
- Whether the price is fixed
Aftercare tips
Simple habits between visits make a real difference. Our advice:
- Share inspection reports with your insurer or broker when asked
- Flag changes in how much frying the kitchen does
- Keep the route to access panels clear
- Report grease dripping from the canopy
After post-clean verification, file the results with the cleaning certificate. The pair gives a clear record of the clean and the check.
Regular grease readings keep the cleaning interval honest. It shows if build-up is speeding up.
How it works
There are three stages on the day: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, while signing off means the written report and pictures. The middle part takes longest, which takes an hour or two for a single kitchen, longer for a large or complex system. Expect the work in Ruislip to happen after your last customer leaves, not during trading.
- Post-clean verification is booked once the clean is done.
- We open the access points used on the clean.
- 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.
Getting ready for the visit
- Tell us about site rules, permits or sign-in
- Clear the space around the work
- Make sure someone can let us in and lock up afterwards
Ask for a quote
To help us quote: the address, the type of site and when it’s open, a few photos and any previous report or certificate. Once you have those, ring 0345 646 2711, or send details by email.
Read more
Ruislip questions
Which council inspects kitchens in Ruislip?
That’s Hillingdon council, whose environmental health officers carry out food hygiene inspections in Ruislip. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
Who enforces fire safety at workplaces in Ruislip?
Ruislip is in the area of London Fire Brigade. TR19® is not law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
How long does grease testing take?
Typically, the inspection takes a morning or less for one kitchen, more where there are several systems. System size and access decide the rest.
Are you accredited?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
What does a pre-clean survey involve?
We check the layout, the grease levels and the access, so the clean goes to plan. Missing access panels are noted ahead of the clean.
What happens if you cannot reach some of it?
They’re listed in the report, never skipped quietly. You will know exactly which parts weren’t reached and why, and we can quote to improve the access.
How often should grease be tested?
That varies with the kitchen’s daily use. BESA sets minimum cleaning intervals of 3, 6 or 12 months by daily use, and testing shows if your kitchen needs more.
Do you look at the system first?
Yes, always. Diagnosis comes before treatment: the survey shows what needs doing and what access we need and the fixed quote is built on it.