Oxfordshire · TR19 inspections and grease testing
TR19 inspections in Wytham
TR19 inspection for Wytham, from a team that has been trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Post-clean verification after another contractor’s clean
- Sites with gaps in their extract records
- Insurance renewals needing proof of TR19 cleaning
When it’s something else
We will not sell you work that doesn’t address the problem, so here are the limits:
- A faulty or failing extract fan
- Fire safety duties beyond the extract system
- Removing the grease, which is a separate clean
If you’re not sure, just call us on 0345 646 2711 or send us an email and we’ll give you a straight answer before booking.
What the work covers
- Wet film thickness tests
- Pre-clean surveys
- Access surveys
- Deposit thickness tests
- Insurer audits
- Post-clean checks
TR19 inspection for kitchens and businesses in Wytham
TR19® Grease says grease should not exceed a mean of 200 microns between cleans, while a reading of 500 microns or more anywhere calls for immediate spot cleaning. Testing is how you know where your system stands. If you are dealing with extracts that may be over the 200 micron mean and an insurer’s request for a TR19 audit, we can help.
Somewhere as small as Wytham, commercial kitchens are few: perhaps a pub, a school or care home kitchen, or a hall used for events. Every one of them still needs its extract kept clear of grease.
Duct Doctor has 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.

- Location
- Wytham (OX2)
- Region
- Oxfordshire
- Paperwork
- Certificate and photo report
- Quote
- A fixed quote up front
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Part by part
Horizontal duct runs
If a run has no access panel, we note it so panels can be added.
Extract fan and discharge
Grease on the fan adds to wear. The inspection shows whether it needs cleaning now.
Signs you need TR19 inspection in Wytham
Looking at a canopy tells you little about what’s in the duct. A system can look clean at the filters and be heavily coated further in, which is why readings matter.
Signs it’s time to call us include:
- Insurers asking for TR19 evidence
- Checking the result of a recent clean
- Ductwork where grease may be over the TR19 limits
- Pre-clean surveys before a first TR19 clean
If you run a church or community hall kitchen, near Church of All Saints or elsewhere in Wytham, its extract still collects grease from every lunch and event.
Questions to ask before booking
- Whether they’re fully insured
- Whether a written report and pictures are included
- When they can work, and whether that’s outside your opening hours
- Exactly which parts of the system are covered
Nearby places to Wytham
More services for Wytham
What TR19 inspection looks like in Wytham
Food Standards Agency data counts about 7 cafés, restaurants and staff canteens in and around Wytham, up to about a mile and a half out. Each kitchen extract among them can be measured for grease to set the right cleaning interval. Environmental health officers from Oxford City council inspect food businesses in Wytham. Extraction counts as kitchen equipment, so its condition can come up on the day. A TR19® certificate and photo report after each clean gives you a record to show an inspector. Wytham sits within the area of 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.
If you run catering at a healthcare site, such as a hospital like Radcliffe Infirmary about 2.4 miles south-east, the extract may need cleaning more often than a part-time kitchen. School kitchens, at schools like Oxford Academy for example, are usually cleaned in the holidays so no lunches are lost.
Wytham is about 4 miles north-west of Oxford, in Oxfordshire. Whether your site is in the middle of Wytham or further out, TR19 inspection is available to all kinds of commercial premises, from a single unit to a large public building. Wytham is one of 443 places in Oxfordshire where we work for commercial clients.
Postcode districts we cover here for TR19 inspection: OX2. We also cover the places around Wytham: Cassington (2 miles north-west), Botley (2 miles south), Dean Court (2 miles south), Farmoor (2 miles south-west) and Swinford (2 miles west). Further out, we also cover Oxford (4 miles south-east), Didcot (12 miles south), Bicester (11 miles north-east), Abingdon-on-Thames (7 miles south), Witney (8 miles west) and Carterton (12 miles west).
Around Wytham
Around Wytham, our work takes us to kitchens and buildings near The White Hart pub, among other places. The closest station to Wytham is Oxford Parkway station, about 2.4 miles north-east of the centre. Other landmarks nearby include Oxford University Press Museum (2.4 miles south-east) and Oxford Castle and earlier settlement remains (2.7 miles south-east). Not far away are Hook Meadow and The Trap Grounds and Harcourt Hill.
Leave it or put it right?
A check after cleaning shows whether the work reached every part it should have, while there’s still time to put anything right. Rural sites cannot always move to another kitchen or room when something fails.
A single site or a whole portfolio, the quote is built the same way: the work involved, the access and the timing. The price is fixed before any work starts.
Why choose Duct Doctor in Wytham
- Evenings, overnight and weekends, plus 24/7 emergency callout
- We diagnose before we treat
- Fixed quotes, typically within one working day
- We are fully insured
See our cost guide and our accreditations.
In-house cleaning or a specialist?
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.
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Questions from Wytham
Which council inspects kitchens in Wytham?
Kitchens in Wytham are inspected by Oxford City council’s environmental health officers. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.
Who enforces fire safety at workplaces in Wytham?
That is Oxfordshire Fire and Rescue Service. It’s worth keeping your fire risk assessment, TR19® certificates and photo reports together, ready to show.
How much time does an inspection need?
Expect it to take an hour or two for a single kitchen, longer for a large or complex system. The visit is timed so cooking is not disrupted.
What does TR19 inspection cost?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. You get a fixed price before work begins.
What happens on a pre-clean survey?
A survey finds out how the system is laid out, how dirty it is and what can be reached, before anyone starts cleaning. Any access problems are flagged so they can be sorted first.
Can you set up regular visits?
Yes. Send details of the systems and how they’re used and we’ll propose a schedule with a fixed quote.
How much notice should we give?
Book as early as you can for planned work, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
What is grease thickness testing?
The Wet Film Thickness Test (WFTT) and Deposit Thickness Test (DTT) measure how thick the grease is at a given point. Readings are taken at set points through the system.
The process
When we arrive, we check the system against the survey or the photos you sent. If anything is different, we talk it through with the person on site before carrying on. From there, it takes a couple of hours for a typical kitchen extract system. A quick note on how to find the site and where to park makes a visit to Wytham run smoothly.
- We go through any past certificates and reports.
- The layout is traced from the canopy to the discharge.
- Access panels are located and any missing ones noted.
- We measure the grease and photograph each point.
- We report back with readings and a fixed quote.
Getting ready for the visit
- Tell us the best time to work, such as after service or at a weekend
- Arrange a key holder or contact on site
- Mention any locked doors, roof access or ceiling voids
Getting a quote
To get a fixed quote, give us a ring on 0345 646 2711 or email us and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. We typically come back within one working day.
Related advice
Between visits
After the visit, a few habits help the work last:
- Clean or swap grease filters as often as the kitchen needs
- Keep canopy edges and gutters wiped down
- Report grease dripping from the canopy
- Do not box in or cover duct access panels
Readings of 500 microns or more are highlighted as needing immediate spot cleaning, and we can quote to do it.
Revisit the cleaning interval whenever the menu or hours change. A quick grease test answers the question.