Greater London · TR19 inspections and grease testing
TR19 inspections in Nag's Head
TR19 inspection in Nag's Head from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Insurers asking for TR19 evidence
- Systems that need surveying before cleaning
- Ductwork where grease may be over the TR19 limits
What affects the cost of TR19 inspection
A fixed price needs a few facts first. We check:
- What state the system is in
- The scale of the work
- Access, including roofs, risers and ceiling voids
- Where the site is and how we reach it
No two sites are the same, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
What we need to know
To help us quote quickly, send us:
- A few general shots of the system
- Any access panels or hatches you can see
- The site address and the type of premises
- Where the plant sits or the system leaves the building, such as a roof or outside wall
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
TR19 inspection for kitchens and businesses in Nag's Head
A pre-clean survey is the diagnosis, and the clean is the treatment. Readings, photos and notes on access are gathered from end to end, so the clean can be planned properly. The work covers wet film thickness tests, access surveys and post-clean checks, and the jobs we see most are systems that need surveying before cleaning and systems cleaned on a calendar with no measurements.
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 Nag's Head, that usually means a longer system to clean and more access panels to plan around.
Good records are part of the job. You get a written report with pictures after each visit, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Where
- Nag's Head (N7, N19, N4)
- Region
- Greater London
- Records
- Certificate and photo report
- Quote
- Fixed quote, usually within a working day
- Hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
TR19 inspection around Nag's Head
Food Standards Agency data counts about 834 restaurants, cafés and canteens and about 254 takeaways within roughly a mile and a half of the centre of Nag's Head. For any of them with a canopy, measuring grease is better than guessing when to clean. London jobs typically start after the last service, with loading and roof access agreed with the building first. It’s Islington council that sends environmental health officers to food businesses in Nag's Head. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Before-and-after photos from each clean are a simple way to show the extract is in hand.
Where a hall near St Joseph and St Padarn's Church, or anywhere in Nag's Head, hosts lunch clubs or events, its extract gathers grease just as a café’s does. For schools such as Grafton Primary School, kitchen extract cleaning is usually booked for the holidays, when the canteen is closed.
Nag's Head is about 2 miles north-west of Hoxton, in Greater London. Sites in Nag's Head get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with pictures. 764 places in Greater London are on our list, large and small.
We work across the N7, N19 and N4 postcode area for TR19 inspection and the streets around it. That includes premises on Penn Road, Tabley Road and Lowman Road and the roads around them. Close by, we work in Holloway (1 mile south), Lower Holloway (1 mile south), Tufnell Park (1 mile west), Upper Holloway (1 mile north-west) and Barnsbury (1 mile south). Further out, we also cover London (4 miles south), City of Westminster (3 miles south-west), Marylebone (3 miles south-west), Kensington (5 miles south-west), Shoreditch (3 miles south-east) and Walthamstow (4 miles north-east).
Around Nag's Head
In Nag's Head, that means kitchens and buildings near Vaughan Williams Memorial Library, Whittington Park and The Coronet pub. Nearby too are Beacon High (0.6 miles south-west) and Musical Theatre Academy (0.8 miles south-east). Nag's Head’s nearest station is Drayton Park station, roughly 0.6 miles south-east. A little further out are Arsenal Football Club Museum (under half a mile east) and Royal Northern Hospital (under half a mile north-west). Open spaces near Nag's Head include St. James's Park Lake and Dartmouth Park Hill.
Different parts, different methods
Extract fan and discharge
We look at where the extract discharges outside, since grease reaches the very end of the system.
Schools, hospitals and care homes
In healthcare and care settings, kitchens may run from early until late. Testing shows if the cleaning interval keeps pace.
What happens on the day
Night work is normal for us. A lot of visits happen overnight or at weekends, so the site can open as normal afterwards. On site, the work takes a couple of hours for a typical kitchen extract system. Most London sites can’t stop for the day, so work in Nag's Head is typically done overnight, early in the morning or at weekends.
- First we book a time that will not disrupt cooking.
- We look over the canopy, plenum, ducts, fan and discharge.
- We take WFTT or DTT readings at set points along the system.
- We photograph the test points and record any sections we can’t reach.
- The findings go into a report with readings, photos and a recommended next clean.
Before we arrive
- Agree a time when the area can be out of use
- Mention any sign-in, permit or induction we need
- Make sure someone can let us in and lock up afterwards
Getting a quote
There’s no standard price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, ring 0345 646 2711 or send us an email.
Advice
Common problems we fix in Nag's Head
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 grease in the extract is part of that risk.
Clients normally contact us after spotting one of these:
- Sites with gaps in their extract records
- Sections of duct that cannot be reached
- Systems that need surveying before cleaning
- Extracts that have never been grease tested
If you run catering at a healthcare site, such as a hospital like Royal Northern Hospital about less than half a mile north-west, the extract may need cleaning more often than a part-time kitchen.
What to look for in a quote
- What insurance they carry
- What paperwork you get at the end
- Proof of accreditation you can verify
- Whether the quote is based on a survey or photos
Leave it or put it right?
If there’s a fire or a claim, your insurer may ask for TR19 records. Without them, a claim can be reduced or refused. An up-to-date inspection report is a good place to start. London sites work long hours, and the longer a job is left, the bigger it gets.
We do not list prices on the website, because the cost depends on the site in front of us. For a fixed quote, call us on 0345 646 2711 or send us an email, and we’ll talk you through it.
Why book with us
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- A single point of contact for sites across the South East and London
- We diagnose before we treat
- Each visit written up, with photos
Read our cost guide and our accreditations.
Looking after it afterwards
Here’s the after-treatment advice, short and simple:
- Clean grease off the canopy between professional cleans
- Keep TR19 certificates, readings and reports together
- Clean or swap grease filters as often as the kitchen needs
- Keep access panels clear and unpainted
After the inspection, we send a report showing each reading, its location and pictures. Keep it with your fire safety and TR19 records.
Test grease regularly instead of relying on the calendar. It shows if build-up is speeding up.
Common questions in Nag's Head
Which fire authority looks after Nag's Head?
Fire safety enforcement in Nag's Head is handled by London Fire Brigade. It’s worth keeping your fire risk assessment, TR19® certificates and photo reports together, ready to show.
Who inspects food businesses in Nag's Head?
That is Islington council, whose environmental health officers carry out food hygiene inspections in Nag's Head. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.
Is a quote from pictures possible?
Yes, if we can see what we need. Otherwise, we book a survey at a time that suits the site, and the quote follows that.
Do you cover Nag's Head?
Yes. We work across Greater London, Surrey, Kent, Sussex, Hampshire, the Isle of Wight, Berkshire, Buckinghamshire, Oxfordshire, Hertfordshire and Essex, and that includes Nag's Head.
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’re fully insured.
How often should grease be tested?
Enough to be sure grease stays within the TR19® Grease figures between cleans. The readings themselves tell you if the interval needs to change.
What happens to the waste?
Anything we remove is contained as we work and taken away with us, from grease and debris to used cleaning water. None of it is left on site.
Do you have a 24/7 line?
Yes. Our emergency line runs 24/7 for anything that cannot wait until a planned visit. Ring any time and tell us what’s happened.
What staff can safely do
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.