Greater London · TR19 inspections and grease testing
TR19 inspections and grease testing in Norbury, Greater London
TR19 inspection in Norbury from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Sites with gaps in their extract records
- Heavy grease suspected in the plenum or ducts
- Missing access panels found on survey
About our TR19 inspection in Norbury
A grease test measures how thick the grease is inside a kitchen extract system. Readings are taken at set points using the Wet Film Thickness Test (WFTT) or the Deposit Thickness Test (DTT). The results show whether the system needs cleaning and how soon. The work covers insurer audits, access surveys and wet film thickness tests, and people most often call us about surveys needed before quoting a full clean and kitchen extract systems with no recent grease readings.
In a London area like Norbury, a kitchen extract often passes through shared space on its way out: a riser, a service void, the floors above. Grease in a duct like that is a fire risk to the whole building, not just the kitchen, which is why keeping it clean to TR19® matters.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we are fully insured.
- Place
- Norbury (CR7, SW16, SE19)
- Region
- Greater London
- Records
- TR19® certificate and photo report
- Quotes
- A fixed price before we start
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
When it’s something else
Some problems need a different service or another trade:
- A faulty or failing extract fan
- Sections with no access, until panels are fitted
- The legal duty, which stays with the responsible person
Not sure which it is? You can give us a ring on 0345 646 2711 or use the quote form and we will tell you honestly before booking.
Parts of the system we cover
- Insurer audits
- Post-clean checks
- Access surveys
- Wet film thickness tests
- Pre-clean surveys
- Deposit thickness tests
How we price TR19 inspection
The diagnosis comes before the price. The main factors are:
- What state the system is in
- The size of the system
- Any permits to work or inductions
- Parking and loading at the site
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
What we need to know
To help us quote quickly, please include:
- The postcode and the type of business
- The paperwork from the last visit, if you have it
- Problems your staff have spotted
- Your opening hours and when the area is out of use
We don’t publish a price list, because every site is different. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To start, call 0345 646 2711, or email photos.
Towns and villages near Norbury
Other services in Norbury
Questions from Norbury
Who is the fire and rescue service for Norbury?
That’s London Fire Brigade. Records of extract cleaning are a sensible thing to have ready if a fire safety officer carries out an audit.
Can you work in Norbury outside opening hours?
Yes. We work evenings, overnight and at weekends. The site is handed back ready to open. Your opening times are the first thing we ask for.
Can we book visits on a schedule?
Yes. Scheduled maintenance plans are part of what we do, with visits at the interval your system needs. Each report recommends when the next visit should be.
Can you quote from pictures?
Often, yes. With good pictures, the site type and your last report, we can price many jobs. Where we cannot see enough, we arrange a survey.
What is a WFTT or DTT grease test?
We measure the grease at set points with a WFTT or DTT test, and set against the TR19® Grease figures.
What do you do with what you remove?
It leaves the site with us at the end of the visit. During the work, it’s contained to keep the area clean.
Is TR19 a legal requirement?
No. TR19® is a specification, not a statute. In practice, an insurer can refuse or reduce a claim without proof of TR19 cleaning, so following it is the sensible course.
What is post-clean verification?
After a clean, we take new readings and pictures to show how the system was left. It works whoever carried out the clean.
Staff cleaning versus specialist work
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, alongside our reports.
Staff cleaning and specialist work are not the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
When to call us in Norbury
Grease in a duct is flammable fuel. Flames from the range can be pulled into the canopy and travel through the ducts to other parts of the building. Measuring it is the first step to keeping it under control.
Common reasons sites call us include:
- Heavy grease suspected in the plenum or ducts
- Missing access panels found on survey
- Missing TR19 certificates or history
- Uncertainty over how often to clean
Church and community hall kitchens, near St Oswald or anywhere around Norbury, are easy to forget, but their extracts collect grease like any other.
Before you book anyone
- Whether a survey comes first
- Whether the work can be done while the site is closed
- What happens if part of the system can’t be accessed
- Whether VAT is included
Why deal with it now?
A pre-clean survey avoids surprises on the night. Missing access panels, hidden duct runs and awkward fans are found before the cleaners arrive, and the quote reflects the real job. For a site in Norbury, fitting the work in overnight now is far easier than closing at short notice later.
We don’t list prices on the website, because the cost depends on the site in front of us. Call for a fixed quote, and we’ll talk you through it.
What you get with us
- Full insurance on every job
- Fixed quotes from a survey or pictures
- CHAS and SafeContractor accredited, with ISO 9001
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Take a look at our cost guide or our accreditations and certificates.
What happens on the day
There are three stages on the day: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, while signing off means the written report and photos. The middle part takes longest, and that takes a couple of hours for a typical kitchen extract system. For a job in Norbury, tell us about loading bays, permits, lifts and roof access when you book.
- We agree a time when the kitchen is closed or quiet.
- We look over the canopy, plenum, ducts, fan and discharge.
- Grease readings are taken at set points using WFTT or DTT.
- We photograph the test points and record any sections we can’t reach.
- We send a report setting out the readings, photos and next steps.
Preparing for the visit
- Allow time for equipment near the work to be turned off and cool down
- Tell us where we can park and unload
- Clear the space around the work
Ask for a quote
Some systems can be priced from photos; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
Advice
Landlords, agents and facilities managers
We regularly work with managing agents. Tell us the site, the work and the access arrangements and we’ll come back with a fixed quote.
Whether it’s one building or many, the standard is the same: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.
TR19 inspection around Norbury
Look up Norbury on the FSA’s food hygiene register and you’ll find about 179 restaurants, cafés and works canteens and about 174 takeaways and sandwich shops within 1.5 miles or so of the middle of Norbury. Each kitchen extract among them can be measured for grease to set the right cleaning interval. Kitchens in Norbury get their food hygiene inspections from Croydon council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Before-and-after pictures from each clean are a simple way to show the extract is in hand. Norbury is covered by London Fire Brigade. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
For schools such as Kensington Avenue Primary School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed. If you run catering at a healthcare site, such as a hospital like Croydon University Hospital about 1.3 miles south, the extract may need cleaning more often than a part-time kitchen.
Norbury is about 1 mile north of Thornton Heath, in Greater London. Wherever you are in the CR7 postcode area, we can take on TR19 inspection. Norbury is one of 764 towns, villages and districts in Greater London we cover for TR19 inspection. For sites nearby, see our London page (6 miles or so).
We cover every part of the CR7, SW16 and SE19 postcode area for TR19 inspection and the roads nearby. TR19 inspection is available to premises on Green Lane, Croft Road and Downs Road and the roads around them. Neighbouring places we cover for TR19 inspection include Pollards Hill (1 mile north), Thornton Heath (1 mile south), Streatham (2 miles north-west), Streatham Park (2 miles north-west) and Mitcham (2 miles west). Further out, we also cover London (6 miles north), City of Westminster (8 miles north), Marylebone (8 miles north), Kensington (7 miles north-west), St Pancras (8 miles north) and Shoreditch (8 miles north).
Near you in Norbury
Locally, jobs take us to businesses close to Norbury Manor Business and Enterprise College for Girls, Grangewood Park and Silburn Reid, among other places. The closest station to Norbury is Norbury station, roughly 0.6 miles west. Well-known places in the area include Crystal Palace Museum (1.5 miles north-east) and Croydon University Hospital (1.3 miles south). The countryside around Norbury includes Knight's Hill and Biggin Wood.