Greater London · TR19 inspections and grease testing
TR19 inspections in Norbiton
Need TR19 inspection in Norbiton? We diagnose first, fix the price and book the work around your hours, finishing with a written report and photos.
- An insurer’s request for a TR19 audit
- Systems cleaned on a calendar with no measurements
- Sites with gaps in their extract records
FAQs for Norbiton
Can parking be tricky for a job in Norbiton?
A loading bay, a visitor permit or off-street space near the site in Norbiton makes the visit easier to plan. Night visits tend to make loading easier on London streets.
Can school kitchens in Norbiton be cleaned in the holidays?
Yes, out-of-term visits are normal for schools. The FSA’s register shows about 48 schools and colleges with food registrations within roughly a mile and a half of Norbiton. Send us your term dates when you give us a ring on 0345 646 2711 or send us an email, and we’ll fit the work in.
How do you keep the site clean during the work?
Floors and surfaces near the work are sheeted before we start, and waste is contained as we go. At the end, the area is cleaned down.
What accreditations do you have?
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 is post-clean verification?
Post-clean verification is a check after a clean, with fresh grease readings and photos. It works whoever carried out the clean.
Is Norbiton in your area?
Yes. Our area takes in London and the counties of South East England, Norbiton included.
At what point does grease need cleaning?
TR19® Grease says the mean shouldn’t exceed 200 microns between cleans, and anywhere at 500 microns or more needs spot cleaning right away.
Do you carry out TR19 audits for insurers?
Yes, anywhere in the area we cover. Share the insurer’s request so the report addresses it.
How we handle TR19 inspection in Norbiton
Not every kitchen fits neatly into a calendar. Some kitchens build up grease faster than the minimum intervals assume, which is why measurement matters. We give your risk assessment measured figures rather than guesses. Common call-outs are for missing access panels found on survey and checking the result of a recent clean, on post-clean checks, wet film thickness tests and deposit thickness tests.
Across London, many commercial kitchens are squeezed into basements and narrow back-of-house spaces, and the duct may run up through several floors before it discharges at the roof. For a kitchen in Norbiton, that typically means a longer system to clean and more access panels to plan around.
Duct Doctor has been trading since 2009, as 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.
- Location
- Norbiton (KT2, KT1, KT3)
- Region
- Greater London
- Paperwork
- Certificate and photo report
- Quotes
- A fixed price before work begins
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Nearby places to Norbiton
Also in Norbiton
When to call us in Norbiton
As hot, greasy air travels up the duct, it cools and leaves a film behind. It often collects where nobody can see it: the plenum, bends and horizontal runs.
Clients typically contact us when they notice one of these:
- Sites with gaps in their extract records
- Post-clean verification after another contractor’s clean
- Insurers asking for TR19 evidence
- Pre-clean surveys before a first TR19 clean
If you run a church or community hall kitchen, near Church of St Peter or elsewhere in Norbiton, its extract still collects grease from every lunch and event.
Before booking anyone
- Whether the quote is based on a survey or pictures
- Whether inaccessible sections are listed on the report
- How they set the interval to the next visit
- How VAT is shown on the quote
Landlords, agents and facilities managers
From a single site to a large estate, the standard is the same: diagnosis, a fixed price, work booked around your hours and a written report with photos.
If you look after several sites, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so each one has its own record.
What affects the cost of TR19 inspection
The survey tells us what the work involves. The main factors are:
- When the work can happen, such as evenings, overnight or weekends
- What state the system is in
- Site requirements such as sign-in and permits
- Travel, parking and unloading
What you pay reflects the actual work. That’s why every job is surveyed first, and why the quote is fixed before work begins.
Asking for a quote
When you call or email, it’s useful to have:
- Your opening hours and when the area is out of use
- The roof, plant room or outside wall the system runs to
- Close-ups of filters, grilles, hatches or access panels
- Photos showing the whole system and its surroundings
Here’s what helps us quote: the address, the type of site and when it’s open, a few photos and the last certificate or report, if there is one. Once you have those, call 0345 646 2711 or email us.
How it works
Your staff don’t need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. If your building in Norbiton has sign-in rules, permits or key holders, mention them when you book.
- First we book a time that won’t disrupt cooking.
- The system is checked from canopy to discharge.
- 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.
Preparing for the visit
- Dig out any earlier paperwork for the system
- Let us know about permits to work or site inductions
- Let us know when the site is closed or quiet
Getting a quote
Quoting starts with a diagnosis, from your photos and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work, before any work starts.
Advice
Grease, kitchens and Norbiton
The FSA’s food hygiene register includes about 54 pubs and bars and about 7 hotels and B&Bs in Norbiton and the streets around it, up to about 1.5 miles out. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Night work suits London kitchens, and roads and loading bays tend to be quieter too. Food hygiene inspections in Norbiton are the job of Kingston-Upon-Thames council’s environmental health team. Extraction counts as kitchen equipment, so its condition can come up on the day. Before-and-after pictures from each clean are a simple way to show the extract is in hand.
If you run catering at a healthcare site, such as a hospital like Kingston Hospital about less than half a mile north, the extract may need cleaning more often than a part-time kitchen. A kitchen near Norbiton station that serves breakfast and dinner can run its extract twelve hours or more, which shortens the cleaning interval.
Norbiton is about 3 miles west of Wimbledon, in Greater London. For TR19 inspection in and around Norbiton, it’s easy to get a fixed quote: please phone us on 0345 646 2711 or use the quote form. We work across South East England and London, Norbiton included. We cover 764 places across Greater London, large and small. London is in our area too, about 10 miles from Norbiton.
All of KT2, KT1 and KT3 is within our area for TR19 inspection, from the main roads to the quietest streets. Streets in the area include New Road, York Road and Orme Road, and we cover them all for TR19 inspection. We also cover the places around Norbiton: Kingston upon Thames (1 mile west), Coombe (1 mile north-east), New Malden (1 mile south-east), Motspur Park (1 mile east) and Coombe Hill (2 miles north-east). Further out, we also cover London (10 miles north-east), City of Westminster (9 miles north-east), Marylebone (9 miles north-east), Kensington (7 miles north-east), St Pancras (11 miles north-east) and Shoreditch (12 miles north-east).
Near you in Norbiton
Locally, jobs take us to businesses close to Kingston Grammar School, Tiffin School and The Black Horse pub. Norbiton has its own railway station: Norbiton station. Well-known places in the area include Kingston Hospital (less than half a mile north) and Bentall Centre (0.9 miles west). Not far away are Rose Walk and Kingston Hill Road area.
When something else is needed
We will always give you a straight diagnosis, so here’s what this work cannot put right:
- A faulty or failing extract fan
- Removing the grease, which is a separate clean
- The legal duty, which stays with the responsible person
If you’re not sure, just call us on 0345 646 2711, or send details by email and we’ll give you a straight answer before you book.
What the work covers
- Wet film thickness tests
- Deposit thickness tests
- Insurer audits
- Pre-clean surveys
- Post-clean checks
- Access surveys
Staff cleaning versus specialist work
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We’ll take a look and send you a fixed quote.
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. That part needs specialist access and equipment.
Keeping the system healthy
Good habits slow the build-up between visits. Our tips:
- Look out for grease drips round the canopy edge
- Keep canopy edges and gutters wiped down
- Book the next test on the date in the report
- Keep access panels clear and unpainted
Keep the verification report next to the certificate it relates to. The pair gives a clear record of the clean and the check.
Test grease regularly instead of relying on the calendar. It spots changes in how fast grease builds.