Buckinghamshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Chearsley, Buckinghamshire
Our technicians work in Chearsley on TR19 inspections and grease testing. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- Kitchens taken over with no cleaning records
- Cleaning intervals that may not suit the kitchen
- Confirming a clean reached the whole system
Staff cleaning versus specialist work
Staff cleaning and specialist work aren’t the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We’ll take a look and give you a fixed quote.
TR19 inspection in Chearsley, done properly
A pre-clean survey is the diagnosis, and the clean is the treatment. We look at the system, take grease readings and photograph what we find, so the clean can be planned properly. The work covers access surveys, deposit thickness tests and wet film thickness tests, and people most often call us about extracts that have never been grease tested and uncertainty over how often to clean.
In a village or hamlet like Chearsley, the kitchens that need extract cleaning are normally a pub, a school, a care home or a hall kitchen, wherever there is one. Every one of them still needs its extract kept clear of grease.
Each visit ends with a written report and photos, so there’s a dated record of the work. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.

- Place
- Chearsley (HP18)
- Wider area
- Buckinghamshire
- Reporting
- TR19® certificate and photo report
- Quote
- A fixed price before any work starts
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Checked
- 30 October 2026
The process
We turn up at the time agreed with you, which is often after service, overnight or at a weekend. Anything that needs to be off for the work is switched off and left to cool first, and floors and nearby surfaces are sheeted. The work itself takes a couple of hours for a typical kitchen extract system. We agree a date with you, plan the drive to Chearsley and turn up when the site is quiet.
- We go through any past certificates and reports.
- We follow the extract from canopy to 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.
Preparing for the visit
- Plan for cooking equipment or plant to be off before we arrive
- Let us know about permits to work or site inductions
- Let us know about parking and loading
Ask for a quote
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and many jobs can be priced from that alone.
Related advice
How the job changes from site to site
Schools, hospitals and care homes
Hospital and care home kitchens can cook all day, every day. Testing shows if the cleaning interval keeps pace.
Horizontal duct runs
Grease can gather thickly at bends and along long runs, well away from where anyone looks.
When it’s something else
Some problems need a different service or another trade:
- Sections with no access, until panels are fitted
- Heavy deposits found on test, which still need cleaning
- The responsible person’s own fire risk assessment
Not sure which it is? You can phone us on 0345 646 2711 or use the quote form and we’ll tell you honestly.
Parts of the system we cover
- Deposit thickness tests
- Access surveys
- Insurer audits
- Post-clean checks
- Pre-clean surveys
- Wet film thickness tests
How we price TR19 inspection
Sites vary more than people expect. What affects the quote:
- Whether it’s a one-off visit or part of a schedule
- How big the system is
- Site requirements such as sign-in and permits
- Access, including roofs, risers and ceiling voids
What you pay depends on how big the system is, what state it’s in and access to every part of it. We give you a fixed price before any work starts, so there are no surprises.
Helping us quote
We can often survey from pictures. The most useful are:
- Any previous report or certificate
- The times we could work without disrupting the site
- Any symptoms, from odd noises to smells or leaks
- Detail shots of panels, filters and grilles
For a fixed quote, phone us on 0345 646 2711, or email photos 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. You will normally have a quote within one working day.
Also near Chearsley
Also in Chearsley
Chearsley kitchens: local notes
There are about 3 restaurants, cafés and canteens within roughly a mile and a half of the centre of Chearsley, according to the Food Standards Agency’s register. Kitchens like these cook for very different hours, and grease testing shows which extracts need cleaning soonest. Environmental health officers from Buckinghamshire council inspect food businesses in Chearsley. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Keeping each certificate and photo report on file helps show the extract is looked after. Fire safety in Chearsley falls to Buckinghamshire Fire and Rescue Service. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises.
Waddesdon Manor, about 3.7 miles north, is one of the historic houses near Chearsley; if you run event catering at a venue like that, cleans can be booked between functions. Volunteers running a hall kitchen near Parish Church of St Nicholas, or anywhere in Chearsley, may not know when the extract was last cleaned, and a grease test settles it. A hospital like Thame Community Hospital, about 3.2 miles south, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
Chearsley is about 3 miles north of Thame, in Buckinghamshire. Whatever kind of site you run in Chearsley, we can take on TR19 inspection. We can work out of hours so trading isn’t interrupted. Across Buckinghamshire, we cover 263 places, Chearsley among them. Our Oxford page covers sites nearby, about 12 miles away.
All of HP18 is covered for TR19 inspection, from the main roads to the quietest streets. Streets in the area include School Lane, Bernard's Close and Aylesbury Road, and we cover them all for TR19 inspection. We also cover Cuddington (1 mile east), Long Crendon (2 miles south-west), Haddenham (2 miles south-east), Gibraltar (2 miles east) and Kingsey (3 miles south-east). Further out, we also cover Aylesbury (6 miles east), High Wycombe (14 miles south-east), Buckingham (14 miles north), Elmhurst (7 miles east), Southcourt (6 miles east) and Princes Risborough (7 miles south-east).
What’s near Chearsley
The closest station to Chearsley is Haddenham & Thame Parkway station, roughly 1.5 miles south-east of the centre. A little further out are Thame Museum (3 miles south) and Dinton Castle (3 miles east). Open spaces near Chearsley include Snakemoor.
Your questions about TR19 inspection in Chearsley
Will you come out to Chearsley?
Yes, we work in villages as well as towns, and Chearsley is covered. A survey first, from photos or a visit, means we arrive with the right kit.
Do you work at weekends in Chearsley?
Yes, out-of-hours work is a big part of what we do. The work in Chearsley can fit around your hours. Just call us on 0345 646 2711, or email photos with your opening times and we’ll plan around them.
Why survey before a clean?
We check the layout, the grease levels and the access, before anyone starts cleaning. Any access problems are flagged so they can be sorted first.
How do you measure grease in a kitchen extract?
WFTT and DTT are the two methods for measuring grease thickness, in microns. We take readings at set points from canopy to fan.
What happens to the waste?
We contain it and take it with us. We collect grease, debris and waste water as we go, so it does not spread.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
What do you need from me for a quote?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. Then give us a ring on 0345 646 2711, or send details by email.
How do you keep the site clean during the work?
By covering it before any work starts. We keep the work contained and leave the area clean.
Why act early in Chearsley
If there’s a fire or a claim, your insurer may ask for TR19 records. Missing records can put a claim at risk. Getting an inspection done now starts that paper trail. Planning a trip to Chearsley ahead is easier for everyone than a rushed one.
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, which can make the next visit longer. If you are unsure, call us on 0345 646 2711 or use the quote form for straight advice and a fixed quote.
Why choose Duct Doctor in Chearsley
- Survey first, then a fixed quote
- We’re fully insured
- Every visit written up, with photos
- Accredited under CHAS and SafeContractor, with ISO 9001
Read what affects the cost and our accreditations and certificates.
Keeping the system healthy
Think of this as the after-treatment advice, short and simple:
- Store grease readings where your insurer can see them
- Report grease dripping from the canopy
- Diary the next grease test and clean
- Keep the route to access panels clear
If any reading is 500 microns or more, the report flags it for immediate spot cleaning, and we can quote to do it.
Test grease regularly instead of relying on the calendar. It shows if build-up is speeding up.