Essex · TR19 inspections and grease testing

TR19 inspections in Thornwood Common

TR19 inspections, grease thickness testing, pre-clean surveys and post-clean verification for businesses, landlords and public buildings in Thornwood Common. CHAS, SafeContractor and ISO 9001, and fully insured.

  • Pre-clean surveys before a first TR19 clean
  • Sections of duct that cannot be reached
  • Heavy grease suspected in the plenum or ducts

TR19 inspection in Thornwood Common

TR19 inspection in Thornwood Common, done properly

Think of a TR19 inspection as the diagnosis before the treatment. Readings, pictures and notes on access are gathered from end to end, so the quote and the clean fit the real system. If you have checking the result of a recent clean and uncertainty over how often to clean, we can put it right, from deposit thickness tests, pre-clean surveys and insurer audits onwards.

For a kitchen in or near Thornwood Common, the visit is planned around opening hours and the journey, and the clean covers the whole system, as it would anywhere: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.

Think of the report as the system’s health record: dated, with photos, and showing what was done. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal, ready for your insurer.

Five Duct Doctor technicians in navy uniforms with the company vans
Location
Thornwood Common (CM16)
Wider area
Essex
Paperwork
TR19® certificate and photo report
Price
A fixed price before we start
Hours
When your site is closed, plus a 24/7 line
Telephone
0345 646 2711
Reviewed
30 October 2026

Thornwood Common: your questions answered

Can you work in Thornwood Common outside opening hours?

Yes, evening, overnight and weekend work is normal for us. It means the site in Thornwood Common keeps running as normal. When you call 0345 646 2711 or email us, mention when the site is quiet.

Who carries out food hygiene inspections in Thornwood Common?

Kitchens in Thornwood Common are inspected by Epping Forest council’s environmental health officers. It helps to keep the extract cleaning records with your food safety paperwork, so they’re ready if asked for.

Is a quote from photos possible?

Yes, where the photos show enough. If not, a site survey comes first, and the quote follows that.

What does TR19 mean?

It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It sets out inspection, cleaning and record keeping and expects a risk-based approach.

How far ahead should we book?

It depends on the time you need and how big the job is. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.

What is a WFTT or DTT grease test?

WFTT and DTT are the two methods for measuring grease thickness, in microns. Readings are taken at set points through the system.

How long does a TR19 inspection take?

Expect it to take anything from an hour for a small canopy and short duct to a good part of a day for a large site. We fit it around when the kitchen is closed or quiet.

Can you come out in an emergency?

Yes. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we’ll advise on what to do next.

Do you need TR19 inspection in Thornwood Common?

Some parts of a system are hard to reach, and grease can be missed there clean after clean. An inspection of a system in Thornwood Common shows where access panels are missing, so the gaps can be closed.

What we’re most often called out for:

  • Surveys needed before quoting a full clean
  • Heavy grease suspected in the plenum or ducts
  • Insurers asking for TR19 evidence
  • Missing access panels found on survey

Historic houses near Thornwood Common, such as Hill Hall about 3.3 miles south, are a reminder that older buildings with event kitchens can have long, awkward duct routes.

What to look for in a quote

  • Whether inaccessible sections are listed on the report
  • Whether the work can be done while the site is closed
  • How they set the interval to the next visit
  • If the quote is a fixed price or an estimate

Choosing a duct cleaning contractor

What affects the cost of TR19 inspection

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

  • The scale of the work
  • Whether several sites go on one quote
  • A single visit or a regular plan
  • The condition of the system

Combining work into one visit or one programme often makes better use of the time. Mention every system or site you need covered, and you’ll get one fixed quote.

Helping us quote

We can often survey from pictures. Try to include:

  • Photos showing the whole system and its surroundings
  • The times we could work without disrupting the site
  • The roof, plant room or outside wall the system runs to
  • The postcode and the type of business

Quotes are quick. Send a few details and photos, and we typically reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.

How the visit works

When we arrive, we check the system against the survey or the pictures you sent. Anything unexpected is raised with you before we go further. From there, it takes a morning or less for one kitchen, more where there are several systems. Somewhere as small as Thornwood Common, the date and timings are agreed with you well before the day.

  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.

Before we arrive

  • Clear loose items from the work area
  • Let us know about permits to work or site inductions
  • Make sure equipment near the work can be switched off and left to cool

Ask for a quote

For a fixed quote, call 0345 646 2711, or send details by email and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. You’ll typically have a quote within one working day.

Get a price

Related advice

Keeping the system healthy

Think of this as the after-treatment advice, in brief:

  • Clean grease off the canopy between professional cleans
  • Keep TR19 certificates, readings and reports together
  • Look out for grease drips round the canopy edge
  • Do not box in or cover duct access panels

You get a report with the grease readings, where they were taken and photos of each point. File it alongside your TR19 certificates.

Close the access gaps found during inspection, so every part of the duct can be cleaned.

Managing agents and facilities teams in Thornwood Common

Running several sites is easier with one contractor. 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 plan visits across the whole estate and price them together. Each site gets its own report and pictures, so records stay tidy.

Part by part

Extract fan and discharge

Grease on the fan adds to wear. Readings show if it needs attention before the next clean.

Restaurants, pubs and hotels

A kitchen running from breakfast to late service builds grease quickly. Regular testing shows whether the cleaning interval keeps up.

Kitchen extracts in Thornwood Common

Look up Thornwood Common on the FSA’s food hygiene register and you will find about 8 cafés, restaurants and staff canteens in Thornwood Common and the streets around it, up to about 1.5 miles out. Kitchens like these cook for very different hours, and grease testing shows which extracts need cleaning soonest. The fire and rescue service for Thornwood Common is Essex County Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. Kitchens in Thornwood Common get their food hygiene inspections from Epping Forest council. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. A dated certificate in the maintenance file answers the question before it’s asked.

Healthcare kitchens cannot easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Thornwood Common is St. Margaret's Hospital, about 1.1 miles south. If you look after a school kitchen, at a school such as St John's Church of England Voluntary Controlled School or anywhere near Thornwood Common, the holidays are the usual time for a TR19® clean.

Thornwood Common is about 3 miles south of Harlow, in Essex. Every kind of commercial site in Thornwood Common, we can take on TR19 inspection. We can work out of hours so trading is not interrupted. Our area takes in 644 places across Essex, large and small. You can also see our page for Chelmsford, roughly 15 miles from Thornwood Common.

Here we cover the CM16 postcode area for TR19 inspection. Streets in the area include Rowley Mead, Duck Lane and Weald Hall Lane, all of which we cover for TR19 inspection. Close by, we work in Coopersale (1 mile south), North Weald Bassett (2 miles east), Hastingwood (2 miles north-east), Bush Fair (3 miles north) and Foster Street (3 miles north). Within a short drive, we also cover Chelmsford (15 miles east), Harlow (3 miles north), Brentwood (10 miles south-east), Billericay (14 miles south-east), Loughton (6 miles south-west) and Waltham Abbey (6 miles south-west).

What’s near Thornwood Common

We work in commercial kitchens and buildings around Thornwood Common Flood Meadow and the streets around them. Thornwood Common’s nearest station is Harlow Town station, about 4.5 miles north. Nearby you will also find Epping Signalling Museum (2 miles south) and St. Margaret's Hospital (1.1 miles south). Open spaces near Thornwood Common include Gernon Bushes.

Map of Thornwood Common © OpenStreetMap contributors

Honest limits

It’s worth knowing the limits before booking:

  • Parts of the duct nobody can reach yet
  • The legal duty, which stays with the responsible person
  • Mechanical faults in the extract

If you are not sure, just ring 0345 646 2711, or send details by email and we will give you a straight answer.

Parts of the system we cover

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