Buckinghamshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Coombe, Buckinghamshire
Our technicians work in Coombe on TR19 inspections, grease thickness testing, pre-clean surveys and post-clean verification. Out-of-hours visits, a fixed quote and a written report with pictures as standard.
- Ductwork where grease may be over the TR19 limits
- An insurer’s request for a TR19 audit
- Sections of duct that cannot be reached
TR19 inspection in Coombe, done properly
After a clean, post-clean verification checks the result, with new readings and photos of the cleaned areas. It gives you evidence of how the system was actually left. If you have kitchen extract systems with no recent grease readings and checking the result of a recent clean, we can help.
In a small place like Coombe, kitchens are often in older or extended buildings, with long single-storey duct runs, and those horizontal sections are where grease settles. We agree access and timings in advance.
We have been trading since 2009, as 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.

- Where
- Coombe (HP17)
- Wider area
- Buckinghamshire
- Records
- Certificate plus before-and-after pictures
- Quotes
- A fixed price before any work starts
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
How the job changes from site to site
Vertical risers
Risers in multi-storey buildings can pass through other areas, so access is planned in advance.
Restaurants, pubs and hotels
BESA’s minimum for heavy use of 12 to 16 hours a day is a clean every 3 months, with testing showing whether more is needed.
Coombe kitchens: local notes
Food Standards Agency records list about 7 restaurants, cafés and works canteens within about 1.5 miles of central Coombe. A WFTT or DTT reading tells each of those kitchens whether its grease is staying under the 200-micron mean. Food hygiene inspections in Coombe are the job of Buckinghamshire 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. Coombe sits within the area of Buckinghamshire 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.
Term dates shape school work: for a school like Great Kimble Church of England School, an extract clean fits neatly into a half-term or summer break. Volunteers running a hall kitchen near Church of St Peter and St Paul, or anywhere in Coombe, may not know when the extract was last cleaned, and a grease test settles it.
Coombe is about 5 miles south of Aylesbury, in Buckinghamshire. Across the HP17 area, we cover TR19 inspection for commercial sites. Coombe is one of 263 places in Buckinghamshire where we work for TR19 inspection. Our Oxford page covers sites nearby, about 19 miles away.
Postcode districts we cover here for TR19 inspection: HP17. We also cover the places around Coombe: Butler's Cross (1 mile north), Ellesborough (1 mile north-west), Chalkshire (1 mile north), Terrick (1 mile north) and Nash Lee (1 mile north). We also work in nearby towns such as Aylesbury (5 miles north), High Wycombe (8 miles south), Chesham (8 miles east), Marlow (12 miles south), Amersham (9 miles south-east) and Beaconsfield (11 miles south-east).
Around Coombe
Around Coombe, our work takes us to kitchens and buildings near John Colet School and The Russell Arms. The nearest railway station is Little Kimble station, roughly 1.3 miles west. A little further out are Little Kimble Motte (1 mile west) and Trenchard Museum (3.1 miles north-east). Not far away are Brush Hill Local Nature Reserve and Coombe Hill.
Managing agents and facilities teams in Coombe
We also work for facilities teams across offices, schools and healthcare in Coombe and across Buckinghamshire. Larger estates can be phased building by building around the people who use them.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.
Staff cleaning versus specialist work
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
How the visit works
Every visit runs to the same pattern: sheeting and protection first, make the system safe, carry out the TR19 inspection, tidy up and leave you the report. On site, the work takes an hour or two for a single kitchen, longer for a large or complex system. Photos of the system and how to reach it help us plan a visit to Coombe.
- Post-clean verification is booked once the clean is done.
- The same access points are opened up.
- Grease readings are taken again at set points.
- We photograph each area to record how it was left.
- We report the findings and flag any areas that need more work.
Getting ready for the visit
- Dig out any earlier paperwork for the system
- Make sure equipment near the work can be switched off and left to cool
- Mention any parking or loading restrictions
How to get a quote
Quoting starts with a diagnosis, either from pictures and details you send or from a site visit. Then we send a fixed price, before we start.
Advice
Towns and villages near Coombe
More services for Coombe
What we are called out for in Coombe
TR19® is the benchmark that insurers, fire officers and EHOs refer to. It isn’t legislation; the legal duty comes from the Fire Safety Order 2005, under which the responsible person must reduce fire risk, and grease in the extract is part of that risk.
Keep an eye out for any of the following:
- Extracts that may be over the 200 micron mean
- An insurer’s request for a TR19 audit
- Parts of the system left out of past cleans
- Pre-clean surveys before a first TR19 clean
A hospital like Stoke Mandeville Hospital, about 3.5 miles north, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
What your quote should include
- What insurance they carry
- Whether inaccessible sections are listed on the report
- Whether the quote is based on a survey or pictures
- Whether the quote shows VAT
Aftercare tips
Here’s the after-treatment advice, in brief:
- Keep the route to access panels clear
- Flag oily drips near the extract
- Diary the next grease test and clean
- Clean or swap grease filters as often as the kitchen needs
Readings of 500 microns or more are highlighted as needing immediate spot cleaning, and we can quote to do it.
Keep filters clean and in place. Missing or damaged filters let grease straight into the plenum.
When something else is needed
TR19 inspection can’t fix everything, and we’ll tell you before any work starts. It won’t put right:
- Removing the grease, which is a separate clean
- Fan breakdowns, which need a repair visit
- The legal duty, which stays with the responsible person
If you’re not sure, just phone us on 0345 646 2711 or use the quote form and we will give you a straight answer.
What the work covers
- Post-clean checks
- Access surveys
- Deposit thickness tests
- Pre-clean surveys
- Wet film thickness tests
- Insurer audits
FAQs for Coombe
Which fire authority looks after Coombe?
It’s Buckinghamshire Fire and Rescue Service, which covers Coombe. TR19® isn’t law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
Which environmental health team covers Coombe?
Food hygiene inspections in Coombe are carried out by Buckinghamshire council. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
What is grease thickness testing?
It’s a measurement of how much grease is coating the inside of the extract, using the Wet Film Thickness Test (WFTT) or Deposit Thickness Test (DTT). Each reading is recorded in microns.
What’s TR19?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It covers how systems are inspected, cleaned and checked and expects a risk-based approach.
How often should grease be tested?
We suggest a next test date in every report, based on the readings and how the kitchen is used. The interval should come from a competent person’s risk assessment backed by grease measurement.
What do you do with what you remove?
We contain it and take it with us. We collect grease, debris and waste water as we go, so it doesn’t spread.
Do you offer maintenance contracts?
Yes. Tell us what you have and how it’s used, and we will suggest a schedule and quote for it.
Can you price the work without visiting?
In many cases, yes. With good photos, the site type and your last report, we can price many jobs. Where we can’t see enough, we arrange a survey.