Kent · TR19 inspections and grease testing

TR19 inspections and grease testing in South Darenth, Kent

TR19 inspection in South Darenth from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.

  • Heavy grease suspected in the plenum or ducts
  • Parts of the system left out of past cleans
  • Cleaning intervals that may not suit the kitchen

TR19 inspection across South Darenth

TR19 inspection in South Darenth, done properly

Grease thickness testing tells you how much grease is sitting in the canopy, ducts and fan. We use the Wet Film Thickness Test (WFTT) or the Deposit Thickness Test (DTT), taking readings at set points. From the numbers, you can see whether cleaning is due. The work covers pre-clean surveys, insurer audits and access surveys, and people most often call us about extracts that may be over the 200 micron mean and kitchens whose menu or hours have changed.

Work in a small place like South Darenth starts with a call to agree access and timings, and the clean itself is the same full TR19® job as in any town: canopy to discharge, then a TR19® certificate and a photo report.

Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.

Location
South Darenth (DA4)
Wider area
Kent
Records
Certificate and photo report
Quote
A fixed quote up front
Hours
Evenings, overnight and weekends; 24/7 emergencies
Call
0345 646 2711
Last updated
30 October 2026
Five Duct Doctor technicians in navy uniforms with the company vans

Do you need TR19 inspection in South Darenth?

TR19® is the benchmark that insurers, fire officers and EHOs refer to. It is not legislation; the legal duty comes from the Fire Safety Order 2005, under which the responsible person must reduce fire risk, and in a kitchen that means keeping grease under control.

If you notice any of these, it’s worth a diagnosis:

  • Uncertainty over how often to clean
  • Systems cleaned on a calendar with no measurements
  • Post-clean verification after another contractor’s clean
  • Sections of duct that can’t be reached

If you look after a school kitchen, at a school such as Horton Kirby Church of England Primary School or anywhere near South Darenth, the holidays are the usual time for a TR19® clean.

Comparing quotes

  • Whether a written report and pictures are included
  • Whether the figure could change on the day
  • Which accreditations they hold, and whether you can check them
  • Whether a survey comes first

Our hiring checklist

What a clean won’t put right

In fairness, there are a few things this work will not fix:

  • Parts of the duct nobody can reach yet
  • Ductwork that was designed or installed badly
  • Fire safety duties beyond the extract system

If in doubt, call us on 0345 646 2711 or email us and we will say what we think before booking.

Where we work

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

The process

Each visit runs to the same pattern: sheeting and protection first, isolate whatever needs isolating, do the work, tidy up and hand over the paperwork. The visit itself takes anything from an hour for a small canopy and short duct to a good part of a day for a large site. In a small place like South Darenth, the journey is planned ahead and the visit arranged around the site’s hours.

  1. After the clean, we arrange a time to check the system.
  2. We open the access points used on the clean.
  3. We repeat the WFTT or DTT readings.
  4. We photograph each area to record how it was left.
  5. We report the findings and flag any areas that need more work.

Getting ready for the visit

  • Let us know how we reach the system, including roofs, risers and plant rooms
  • Plan for cooking equipment or plant to be off before we arrive
  • Let us know when the site is closed or quiet

Get a fixed quote

Quotes are quick. Send a few details and pictures, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.

Get a quick quote

Related advice

What your team can do, and what needs us

Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.

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

What affects the quote in South Darenth

We quote each job individually. This is what makes a difference:

  • How many systems or sites are involved
  • The size of the system
  • Any permits to work or inductions
  • The condition of the system

Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are unsure, give us a ring on 0345 646 2711, or email photos and we will give you an honest view and a fixed quote.

Asking for a quote

Photos and a few facts are often enough to price the work. Useful things to send:

  • Any access panels or hatches you can see
  • The times we could work without disrupting the site
  • Problems your staff have spotted
  • The postcode and the type of business

Quoting starts with a diagnosis, from your photos and details or, where that is not enough, a survey on site. Then we send a fixed price, before work begins.

Common questions in South Darenth

Who is the fire and rescue service for South Darenth?

Fire safety enforcement in South Darenth is handled by Kent Fire and Rescue Service. Records of extract cleaning are a sensible thing to have ready if a fire safety officer carries out an audit.

Who carries out food hygiene inspections in South Darenth?

The local authority for South Darenth is Sevenoaks council, and its environmental health team does the inspecting. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.

What information do you need?

Just the basics: the address, the site type, your opening hours and how we reach the system. Photos and the last report help too. Then call 0345 646 2711, or send details by email.

Which kinds of sites do you work on?

We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, as well as food production and leisure sites.

What grease levels does TR19 allow?

TR19® Grease says the mean shouldn’t exceed 200 microns between cleans, and anywhere at 500 microns or more needs spot cleaning right away.

How far ahead should we book?

For planned work, earlier is better, especially if the next clean or test is due soon. For emergencies, we take calls 24/7.

What if parts of the system can’t be reached?

They’re listed in the report, never skipped quietly. The report says which parts couldn’t be reached and why, and we can quote to improve the access.

How much time does an inspection need?

An inspection takes a morning or less for one kitchen, more where there are several systems. Sites with several canopies take longer, so give us a ring on 0345 646 2711 or send us an email and we’ll plan it.

Different parts, different methods

Schools, hospitals and care homes

Inspections are planned around mealtimes and holidays to avoid disruption.

Restaurants, pubs and hotels

A kitchen running from breakfast to late service builds grease quickly. Readings show if the cleans are frequent enough.

South Darenth kitchens: local notes

According to Food Standards Agency records, there are about 6 bars, pubs and nightclubs within 1.5 miles or so of the middle of South Darenth. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. In South Darenth, food businesses are inspected by environmental health officers from Sevenoaks council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. A dated certificate in the maintenance file answers the question before it’s asked. The fire and rescue service for South Darenth is Kent Fire and Rescue Service. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.

Volunteers running a hall kitchen near The Parish Church of Saint Mary, or anywhere in South Darenth, may not know when the extract was last cleaned, and a grease test settles it. Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to South Darenth is Darenth Park Hospital, about 2.3 miles north.

South Darenth is about 3 miles south of Dartford, in Kent. Sites in South Darenth get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with pictures. South Darenth is one of 922 towns, villages and districts in Kent where we work for commercial clients. Maidstone is in our area too, around 15 miles away.

Work in DA4 follows the same survey, fixed quote and written report as everywhere else we cover. If you need TR19 inspection at premises on East Hill, East Lane and New Road or a nearby road, our technicians can take on the work. Close by, we work in St Margarets (1 mile north-east), Sutton at Hone (1 mile north-west), Darenth (1 mile north), Grubb Street (1 mile east) and Green Street Green (1 mile north-east). Within a short drive, we also cover Maidstone (15 miles south-east), Dartford (3 miles north), Sevenoaks (9 miles south), Gravesend (6 miles east), Tonbridge (14 miles south) and Northfleet (5 miles north-east).

Landmarks near South Darenth

Typical jobs here are in premises near Leigh Academy, Darenth Country Park and The Greyhound pub, among other places. The nearest railway station is Farningham Road station, roughly 0.6 miles west. Other landmarks nearby include Stone Museum of Geology (2.9 miles north) and Eynsford Castle (2.7 miles south-west). Open spaces near South Darenth include Wansunt Pit and Sawyers Lake.

Map of South Darenth © OpenStreetMap contributors

Between visits

Good habits slow the build-up between visits. A few tips:

  • Keep canopy edges and gutters wiped down
  • Keep grease filters clean and fitted properly
  • Book the next test on the date in the report
  • File every inspection report with your certificates

After the inspection, we send a report showing each reading, its location and pictures. File it alongside your TR19 certificates.

Test grease regularly instead of relying on the calendar. It spots changes in how fast grease builds.

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