Kent · TR19 inspections and grease testing
TR19 inspections and grease testing in Halstead, Kent
Our technicians work in Halstead on TR19 inspections and grease testing. Out-of-hours visits, a fixed quote and a written report with photos on every job.
- Kitchen extract systems with no recent grease readings
- Cleaning intervals that may not suit the kitchen
- Heavy grease suspected in the plenum or ducts
What your team can do, and what needs us
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
Staff cleaning and specialist work are not the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
About our TR19 inspection in Halstead
BESA sets minimum cleaning intervals by daily use: heavy use (12 to 16 hours a day) every 3 months, moderate use (6 to 12 hours) every 6 months and light use (2 to 6 hours) every 12 months. Grease testing shows whether your kitchen needs cleaning more often than that. If you’re dealing with systems that need surveying before cleaning and parts of the system left out of past cleans, we can put it right.
In a small place like Halstead, kitchens are often in older or extended buildings, with long single-storey duct runs, where grease settles in the flat sections. Access, parking and timings are agreed before the day.
Duct Doctor has been trading since 2009, and we are 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.
- Place
- Halstead (TN14)
- Wider area
- Kent
- Records
- Certificate plus before-and-after pictures
- Quotes
- A fixed quote up front
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
When it’s something else
It’s worth knowing the limits before booking:
- Heavy deposits found on test, which still need cleaning
- Parts of the duct nobody can reach yet
- Fan breakdowns, which need a repair visit
Not sure which it is? You can phone us on 0345 646 2711 or email us and we’ll tell you honestly before you book.
What the work covers
- Pre-clean surveys
- Post-clean checks
- Insurer audits
- Deposit thickness tests
- Wet film thickness tests
- Access surveys
What affects the cost of TR19 inspection
You’ll get a fixed price before any work starts. It’s based on:
- The scale of the work
- Site requirements such as sign-in and permits
- The number of sites or systems
- The times the site is available
No two sites are the same, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Helping us quote
Before you ask for a quote, gather:
- Any access panels or hatches you can see
- Any symptoms, from odd noises to smells or leaks
- Wide photos of the system and the area around it
- Your opening hours and when the area is out of use
Quotes are quick. Send a few details and pictures, and we normally reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Why deal with it now?
Without readings, you’re guessing when to clean. If grease reaches 500 microns anywhere, TR19® Grease calls for immediate spot cleaning, which you will not know without measuring. If the system at a site near Halstead fails, there may be nowhere nearby to move to.
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, which can make the next visit longer. If you’re not sure what’s needed, phone us on 0345 646 2711 or send us an email and we will give you an honest view and a fixed quote.
What you get with us
- Survey first, then a fixed quote
- Each visit written up, with pictures
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- We’re fully insured
See our cost guide and our accreditations.
Aftercare tips
How long the results last depends on use and care. Here’s what we suggest:
- Keep TR19 certificates, readings and reports together
- Clean grease off the canopy between professional cleans
- Diary the next grease test and clean
- Don’t box in or cover duct access panels
The report recommends when the system should next be cleaned and tested, based on the readings and how the kitchen is used.
Keep certificates, reports and readings in one place so the history is easy to show.
Nearby places to Halstead
Also in Halstead
Different parts, different methods
Canopy and plenum
Behind the filters, the plenum catches plenty of grease. We take readings there and photograph it as part of every survey.
Horizontal duct runs
Grease can gather thickly at bends and along long runs, well away from where anyone looks.
How the visit works
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. On site, the work takes around an hour or two per canopy and duct system. A quick note on how to find the site and where to park makes a visit to Halstead run smoothly.
- We go through any past certificates and reports.
- The layout is traced from the canopy to the discharge.
- We note where access panels are and where more are needed.
- We measure the grease and photograph each point.
- We report back with readings and a fixed quote.
How to prepare
- Make sure equipment near the work can be switched off and left to cool
- Find the previous report, if there is one
- Mention any locked doors, roof access or ceiling voids
Ask for a quote
To get a fixed quote, call 0345 646 2711 or drop us a line 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. We normally come back within one working day.
Advice
Halstead kitchens: local notes
The FSA’s food hygiene register shows about 3 restaurants, cafés and canteens within roughly a mile and a half of the centre of Halstead. A WFTT or DTT reading tells each of those kitchens whether its grease is staying under the 200-micron mean. Halstead sits within the area of Kent Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. Food hygiene inspections in Halstead are the job of Sevenoaks council’s environmental health team. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Before-and-after pictures from each clean are a simple way to show the extract is in hand.
If your kitchen is in a listed or historic building, like the houses around Halstead (Lullingstone Castle is about 3.2 miles north-east), fitting access panels needs care. Healthcare kitchens, like those at hospitals such as Orpington Hospital (about 2.7 miles north-west), often cook for long hours, which puts them in BESA’s heavier-use bands. If you run a church or community hall kitchen, near St Margaret's Church or elsewhere in Halstead, its extract still collects grease from every lunch and event.
Halstead is about 4 miles south of Orpington, in Kent. Every kind of commercial site in Halstead, TR19 inspection is something we can help with. We can work out of hours so the site keeps running. Halstead is one of 922 places in Kent we cover for commercial clients. You can also see our page for London, about 15 miles away.
Work in TN14 is surveyed, quoted and booked the same way as anywhere else. Streets in the area include Station Road, Church Road and London Road, all of which we cover for TR19 inspection. Close by, we work in Badgers Mount (1 mile north-east), Sepham Heath (1 mile south-east), Pratt's Bottom (1 mile north-west), Knockholt Pound (1 mile south-west) and Bopeep (1 mile north). Larger places within reach include Dartford (9 miles north-east), Sevenoaks (4 miles south-east), Royal Tunbridge Wells (15 miles south-east), Gravesend (13 miles north-east), Tonbridge (11 miles south-east) and Northfleet (11 miles north-east).
Landmarks near Halstead
We work in commercial kitchens and buildings around The Cock Inn, Green Street Green Primary School and Hewitt's Chalk Bank, among other places. For rail, the closest station is Knockholt station, roughly 1 mile north of the centre. Nearby you will also find Orpington Hospital (2.7 miles north-west) and Otford Heritage Centre (3 miles south-east). Open spaces near Halstead include Downe Bank Nature Reserve and Betsom's Hill.
Common questions in Halstead
Will you come out to Halstead?
Yes, we work in villages as well as towns, and Halstead is covered. Let us know about access, parking and anything unusual about getting there when you book.
Can you come to Halstead after we close?
Yes, we can come after you close and finish before you open. Your customers, staff or residents in Halstead needn’t be disturbed. Let us know the hours you’re closed and we will book within them.
Is there a survey before the work?
Yes, always. We diagnose before we treat: the survey shows what needs doing and what access we need, and the quote is based on that.
Do you check other contractors’ cleans?
A post-clean check records grease readings and pictures after the work, whoever did the clean.
Are you accredited?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
Can you set up regular visits?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.
What is TR19?
BESA’s ventilation hygiene specification in two main parts: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It isn’t legislation, but it’s the standard people check against.
What if parts of the system cannot be reached?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, which we can install.