Oxfordshire · TR19 inspections and grease testing
Tetsworth TR19 inspection
TR19 inspection for Tetsworth and the surrounding area: diagnosis first, then a fixed quote, the work and a report with pictures. Ask us for a fixed quote.
- An insurer’s request for a TR19 audit
- Heavy grease suspected in the plenum or ducts
- Sections of duct that can’t be reached
Tetsworth: your questions answered
Can you get to a site in Tetsworth?
Yes. Tetsworth is within the area we cover across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you clean school canteen extracts around Tetsworth out of term?
Yes, out-of-term visits are normal for schools. Food Standards Agency records list about 2 schools, colleges and universities with registered kitchens within about a mile and a half of Tetsworth. Just call us on 0345 646 2711 or use the quote form with your term dates and we’ll plan around them.
Can you price the work without visiting?
Yes, if we can see what we need. If not, a site survey comes first, and the quote follows that.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Is TR19 a legal requirement?
No, TR19® is not legislation. But the responsible person must assess and reduce fire risk under the Fire Safety Order 2005, and grease in the extract is part of that. Many insurers also expect TR19 cleaning.
Which kinds of sites do you work on?
All kinds of commercial and public premises: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. We fit the work around how the site operates.
What grease levels does TR19 allow?
TR19® Grease says grease should not go over a mean of 200 microns between cleans. Any reading of 500 microns or more needs immediate spot cleaning.
Do you look at the system first?
Yes. For many sites, pictures and a few details are enough, and larger or hidden systems get a visit.
TR19 inspection in Tetsworth, done properly
A grease test measures how thick the grease is inside a kitchen extract system. We use the Wet Film Thickness Test (WFTT) or the Deposit Thickness Test (DTT), taking readings at set points. The results show whether the system needs cleaning and how soon. The work covers deposit thickness tests, wet film thickness tests and post-clean checks, and people most often call us about extracts that may be over the 200 micron mean and confirming a clean reached the whole system.
Rural kitchens often have long, low duct runs through a roof space or along an outside wall, and those horizontal sections are where grease settles. Access, parking and timings are agreed before the day.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. We are also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we’ve been trading since 2009.
- Place
- Tetsworth (OX9)
- Region
- Oxfordshire
- Reporting
- TR19® certificate and photo report
- Quotes
- A fixed quote up front
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
What a clean will not put right
We will always give you a straight diagnosis, so here’s what this work can’t put right:
- Ductwork that was designed or installed badly
- Heavy deposits found on test, which still need cleaning
- Fan breakdowns, which need a repair visit
If in doubt, phone us on 0345 646 2711, or email photos and we’ll say what we think.
Parts of the system we cover
- Deposit thickness tests
- Access surveys
- Wet film thickness tests
- Pre-clean surveys
- Post-clean checks
- Insurer audits
What your team can do, and what needs us
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.
What we are called out for in Tetsworth
When a site in Tetsworth changes owner or cleaning contractor, the records don’t always follow. With no history, the current state of the extract is a guess.
Keep an eye out for any of the following:
- Insurance renewals needing proof of TR19 cleaning
- Confirming a clean reached the whole system
- Extracts that may be over the 200 micron mean
- Missing access panels found on survey
Adwell House, about 1.4 miles south, is one of the historic houses near Tetsworth; if you run event catering at a venue like that, cleans can be booked between functions.
What to look for in a quote
- Whether the work can be done while the site is closed
- Whether inaccessible sections are listed on the report
- How they set the interval to the next visit
- Proof of insurance
Fixed quotes for TR19 inspection in Tetsworth
Your quote is based on your site. We consider:
- Whether it’s a one-off visit or part of a schedule
- What state the system is in
- How big the system is
- How many systems or sites are involved
No two sites are the same, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all play a part.
Asking for a quote
There’s no need for technical detail. Just send:
- A few general shots of the system
- The site address and the type of premises
- Problems your staff have spotted
- When the site is open and when it’s quiet
If you need TR19 inspection in Tetsworth, ring 0345 646 2711 or send us an email. Tell us what kind of premises it is and when it’s open, and send photos or your last report if you can. A fixed quote normally follows within one working day.
Also near Tetsworth
Other services in Tetsworth
Leave it or put it right?
If a kitchen in Tetsworth has been cleaned on the same calendar for years, there’s no way to know if that interval is right without measuring. Measured readings let a competent person set the interval. If the system at a site near Tetsworth fails, there may be nowhere nearby to move to.
The price reflects the work, not guesswork. That is why we survey first, from photos or on site, and why the quote is fixed before any work starts.
Why us?
- Fixed quotes from a survey or pictures
- Work around your opening hours, with 24/7 emergency cover
- Accredited under CHAS and SafeContractor, with ISO 9001
- Full insurance on every job
Take a look at our cost guide or our accreditations.
Between visits
Good habits slow the build-up between visits. A few tips:
- Tell us if menus or opening hours change
- Look out for grease drips round the canopy edge
- Diary the next grease test and clean
- Clean grease off the canopy between professional cleans
If any reading is 500 microns or more, the report flags it for immediate spot cleaning, and we can arrange it.
Clean, correctly fitted filters stop more grease reaching the duct. Missing or damaged filters let grease straight into the plenum.
The process
We work around your opening hours, not the other way round. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. Once we are in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes a couple of hours for a typical kitchen extract system. For a village or hamlet like Tetsworth, tell us about narrow lanes, gates and parking when you book.
- Post-clean verification is booked once the clean is done.
- We open the access points used on the clean.
- We repeat the WFTT or DTT readings.
- Photos are taken to show the condition after the clean.
- The results are reported, with anything missed flagged.
Before we arrive
- Dig out any earlier paperwork for the system
- Let us know how we reach the system, including roofs, risers and plant rooms
- Mention any parking or loading restrictions
Get a fixed quote
There’s no standard price list, because every site is different. We look at your system first, from pictures or on a visit, then send a fixed quote. To get going, give us a ring on 0345 646 2711 or send us an email.
Advice
TR19 inspection in Tetsworth: the local picture
Tetsworth is covered by Oxfordshire 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. At about 42 miles from central London, Tetsworth sits well inside the area we cover. A survey and a fixed quote come first, then the visit at a time that suits you.
A hospital like Thame Community Hospital, about 2.8 miles north-east, is the kind of site where a kitchen may cook for patients, staff and visitors all day. If you look after a school kitchen, at a school such as Tetsworth Primary School or anywhere near Tetsworth, the holidays are the usual time for a TR19® clean.
Tetsworth is about 3 miles south-west of Thame, in Oxfordshire. Whether your site is in the middle of Tetsworth or further out, TR19 inspection is available to all kinds of commercial premises, from a single unit to a large public building. Tetsworth is one of 443 places in Oxfordshire we cover for commercial clients. There’s also a page for Oxford, about 10 miles away.
Our technicians cover all of OX9 for TR19 inspection and the streets around it. That includes premises on High Street, Swan Gardens and Back Street and nearby roads. We also cover North Weston (2 miles north), Milton Common (3 miles north-west), Albury (3 miles north-west), Great Haseley (3 miles west) and Tiddington (3 miles north-west). Further out, we also cover Oxford (10 miles west), Didcot (12 miles south-west), Bicester (15 miles north-west), Abingdon-on-Thames (12 miles west), Thame (3 miles north-east) and Henley-on-Thames (13 miles south).
Landmarks near Tetsworth
We work in commercial kitchens and buildings around The Swan pub and the streets around them. For rail, the closest station is Haddenham & Thame Parkway station, roughly 5 miles north-east of the centre. Nearby you’ll also find Thame Museum (2.9 miles north) and Thame Community Hospital (2.8 miles north-east). Open spaces near Tetsworth include Wells Farm and Bald Hill.