Greater London · TR19 inspections and grease testing

TR19 inspections and grease testing in Riddlesdown, Greater London

TR19 inspection for Riddlesdown, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.

  • Ductwork where grease may be over the TR19 limits
  • Missing TR19 certificates or history
  • Systems cleaned on a calendar with no measurements

TR19 inspection across Riddlesdown

About our TR19 inspection in Riddlesdown

Post-clean verification is a check carried out once the cleaning is done, with fresh grease readings, pictures and a look at the areas that were cleaned. It shows whether the system was left in the condition the paperwork describes. If you have missing access panels found on survey and sites with gaps in their extract records, we can help, from access surveys, wet film thickness tests and insurer audits onwards.

Across London, many commercial kitchens are squeezed into basements and narrow back-of-house spaces, with extract ducts that can climb several floors to discharge at roof level. In Riddlesdown, as elsewhere in the capital, a long duct run means more access points to open and more grease to remove.

It’s worth checking any contractor’s accreditations. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.

The Duct Doctor team standing beside their branded white and blue vans
Where
Riddlesdown (CR8, CR2)
Wider area
Greater London
Reporting
TR19® certificate and photo report
Price
A fixed price before work begins
Hours
Evenings, overnight and weekends; 24/7 emergencies
Call
0345 646 2711
Updated
30 October 2026

Landlords, agents and facilities managers

Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept on a regular cycle.

For anyone managing more than one site, we can schedule visits across all of them on one quote. Each site gets its own report and photos, so each one has its own record.

What we do, step by step

There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Before we leave, the area is tidied and the paperwork follows. A name and number for whoever controls access to the building in Riddlesdown saves time on the night.

  1. First we look at the system’s cleaning history, if there is one.
  2. We follow the extract from canopy to discharge.
  3. We note where access panels are and where more are needed.
  4. We measure the grease and photograph each point.
  5. You get a report and a fixed quote for the clean.

Getting ready for the visit

  • Mention any locked doors, roof access or ceiling voids
  • Clear loose items from the work area
  • Have your last certificate or report to hand

Get a fixed quote

For a fixed quote, give us a ring on 0345 646 2711 or send us an email and tell us the type of site, your opening hours and roughly what the system looks like. A few photos and your last certificate or report help a lot. We usually come back within one working day.

Get a quick quote

Advice

What TR19 inspection can’t fix

We’ll always give you a straight diagnosis, so here’s what TR19 inspection will not do:

  • Installation problems, which fall under design guidance such as DW172
  • The grease itself, which needs a full or spot clean
  • Parts of the duct nobody can reach yet

Not sure which it is? You can phone us on 0345 646 2711 or send us an email and we will tell you honestly.

What we work on in Riddlesdown

  • Post-clean checks
  • Wet film thickness tests
  • Access surveys
  • Pre-clean surveys
  • Insurer audits
  • Deposit thickness tests

Riddlesdown kitchens: local notes

The FSA’s food hygiene register includes about 5 bars, pubs and nightclubs within roughly a mile and a half of the centre of Riddlesdown. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Food hygiene inspections in Riddlesdown are the job of Croydon council’s environmental health team. Extraction counts as kitchen equipment, so its condition can come up on the day. A TR19® certificate and photo report after each clean gives you a record to show an inspector. The fire and rescue service for Riddlesdown is London Fire Brigade. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.

Healthcare kitchens, like those at hospitals such as Purley War Memorial Hospital (about 1 mile north-west), often cook for long hours, which puts them in BESA’s heavier-use bands. School kitchens, at schools like Harris Primary Academy Kenley for example, are typically cleaned in the holidays so no lunches are lost. A hall kitchen that only cooks for events, whether near St Edmund's Church or elsewhere in Riddlesdown, still needs its extract cleaned, just less often.

Riddlesdown is about 1 mile east of Purley, in Greater London. Anywhere in CR8, we cover TR19 inspection for commercial sites. Riddlesdown is one of 764 towns, villages and districts in Greater London where we work for TR19 inspection. For sites nearby, see our London page, about 12 miles away.

Here we cover the CR8 and CR2 postcode area for TR19 inspection. If you need TR19 inspection at premises on Hyde Road, Lower Road and Famet Avenue or anywhere close by, our technicians can take on the work. Main roads around Riddlesdown include the A22, so getting to you is simple for TR19 inspection. Close by, we work in Kenley (1 mile south), Sanderstead (1 mile north-east), South Croydon (2 miles north), Hamsey Green (2 miles south-east) and Whyteleafe (2 miles south). Further out, we also cover London (12 miles north), City of Westminster (13 miles north), Marylebone (13 miles north), Kensington (13 miles north), St Pancras (14 miles north) and Shoreditch (13 miles north).

Near you in Riddlesdown

Locally, jobs take us to businesses close to Riddlesdown Collegiate and Dollypers Hill. Riddlesdown has its own railway station: Riddlesdown station. Nearby you will also find Croydon Airport Visitor Centre (2 miles north-west) and Purley War Memorial Hospital (1 mile north-west). The countryside around Riddlesdown includes Duppas Hill and Foxley Wood.

Map of Riddlesdown © OpenStreetMap contributors

How the job changes from site to site

Canopy and plenum

Clean-looking filters do not mean a clean plenum. That’s why we test behind them.

Extract fan and discharge

The discharge at the end of the system is checked as well, since grease reaches the very end of the system.

What affects the quote in Riddlesdown

Every site gets its own quote. This is what makes a difference:

  • Whether we need access equipment or extra panels
  • What state the system is in
  • The size of the system
  • Working hours and out-of-hours timing

The price reflects the work, not guesswork. That is why every job is surveyed first, and why the quote is fixed before any work starts.

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:

  • Any previous report or certificate
  • Detail shots of panels, filters and grilles
  • The postcode and the type of business
  • How we’d reach plant on a roof or in a plant room

Here’s what helps us quote: where the site is, what it is and its opening hours, pictures of the system and any previous report or certificate. Once you have those, ring 0345 646 2711, or email photos.

Why act early in Riddlesdown

Finding a hotspot early means a targeted spot clean rather than a bigger problem later. Ignored, the layer only gets thicker. London sites work long hours, and the longer a job is left, the bigger it gets.

When the work has to happen, how we reach it and how big the site is can all change the price. We take each of them into account, and the price is fixed before we start.

What you get with us

  • Every job surveyed first
  • Ventilation hygiene specialists since 2009
  • Out-of-hours work and a 24/7 emergency line
  • Full insurance on every job

See our cost guide and how to check a contractor.

FAQs for Riddlesdown

Can the work in Riddlesdown be done at night or at weekends?

Yes, nights and weekends are routine for us. It means the site in Riddlesdown keeps running as normal. Just call 0345 646 2711 or send us an email with your opening times and we will plan around them.

How do you handle parking and loading in Riddlesdown?

Tell us where a van can stop near your site in Riddlesdown, and about any building rules on loading. Night visits tend to make loading easier on London streets.

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 survey before quoting?

Yes. For many sites, pictures and a few details are enough, and larger or hidden systems get a visit.

How much does TR19 inspection cost?

There’s no set price, as it depends on the job: how big it is, what state it’s in, how we reach it and the working hours. You get a fixed price before any work starts.

How do you measure grease in a kitchen extract?

Grease thickness testing measures the layer of grease on the duct surfaces, using the Wet Film Thickness Test (WFTT) or Deposit Thickness Test (DTT). The results are given in microns.

Can one contract cover all our sites?

Yes. We work across South East England and London, so sites at different addresses can be planned together on one programme. Each site gets its own report and photos.

How do you keep the site clean during the work?

We cover floors and nearby surfaces with sheeting before we start, and anything we remove is contained. At the end, the area is cleaned down.

What staff can safely do

Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.

Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.

BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London