Buckinghamshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Dadford, Buckinghamshire
We cover Dadford for TR19 inspection. Out-of-hours visits, a fixed quote and a written report with pictures on every job.
- Sections of duct that cannot be reached
- Extracts that have never been grease tested
- Checking the result of a recent clean
TR19 inspection in Dadford, done properly
Not every kitchen fits neatly into a calendar. In a busy kitchen, grease can build faster than the minimum intervals allow for, which is why measurement matters. We give your risk assessment measured figures rather than guesses. Common call-outs are for insurers asking for TR19 evidence and kitchen extract systems with no recent grease readings, on deposit thickness tests, wet film thickness tests and insurer audits.
Rural kitchens often have long, low duct runs through a roof space or along an outside wall, where grease settles in the flat sections. We agree access and timings in advance.
Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Location
- Dadford (MK18)
- Region
- Buckinghamshire
- Paperwork
- Certificate plus before-and-after photos
- Price
- A fixed quote up front
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026

Aftercare tips
Here’s the after-treatment advice, in brief:
- Keep to the recommended interval
- Clean grease off the canopy between professional cleans
- Send TR19 audit reports to your insurer on request
- Don’t box in or cover duct access panels
Each report suggests the next clean and the next test, from the measured grease and the kitchen’s hours.
Keep filters clean and in place. Gaps around filters let grease get past them.
Towns and villages near Dadford
Also in Dadford
Dadford kitchens: local notes
The fire and rescue service for Dadford is 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. About 55 miles out from central London, Dadford is part of the South East area we work across. Evening, overnight and weekend visits are all possible.
If your kitchen is in a listed or historic building, like the houses around Dadford (Stowe House is about 0.8 miles south-east), fitting access panels needs care. Healthcare kitchens cannot easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Dadford is Buckingham Community Hospital, about 3.2 miles south-east.
Dadford is about 4 miles north-west of Buckingham, in Buckinghamshire. Whatever kind of site you run in Dadford, we can take on TR19 inspection. Visits can be booked for evenings, overnight or weekends so trading is not interrupted. Dadford is one of 263 towns, villages and districts in Buckinghamshire we cover for TR19 inspection. For sites nearby, see our Milton Keynes page, about 11 miles away.
We work across MK18 for TR19 inspection and the streets around it. That includes premises on High Street and North Hill and the roads around them. We also cover Shalstone (2 miles south-west), Chackmore (2 miles south-east), Water Stratford (3 miles south-west) and Radclive (3 miles south). Within a short drive, we also cover Buckingham (4 miles south-east), Winslow (9 miles south-east), Steeple Claydon (7 miles south), Tingewick (4 miles south), Whitchurch (14 miles south-east) and Quainton (12 miles south).
Landmarks near Dadford
Typical jobs here are in premises near Stowe Park and Garden and the streets around them. A little further out are The Menagerie (0.8 miles south-east) and Buckingham Castle (3.4 miles south-east). For a walk, there’s Buckingham Sand Pit.
Part by part
Extract fan and discharge
Grease builds up on the fan blades and inside the housing. We check and test them as part of the inspection.
Vertical risers
Access to risers is often limited. We record what can and can’t be reached.
Managing agents and facilities teams in Dadford
Facilities teams in offices, schools and healthcare sites book us too in Dadford and across Buckinghamshire. Larger estates can be phased building by building around the people who use them.
Keeping records across a portfolio is half the battle. Each visit ends with a dated report and pictures, ready to show insurers, fire officers or EHOs.
How it works
The first job on site is protection: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. The work on site takes a couple of hours for a typical kitchen extract system, and we clear up before we go. If you can send photos, we can arrive in Dadford knowing what to expect.
- 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.
- We photograph each area to record how it was left.
- The results are reported, with anything missed flagged.
Before we arrive
- Make sure equipment near the work can be switched off and left to cool
- Move anything stored near the system
- Mention any sign-in, permit or induction we need
Get a fixed quote
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, you get a fixed price before we start.
Related advice
Common questions in Dadford
Can the work in Dadford be done at night or at weekends?
Yes, we can come after you close and finish before you open. It means the site in Dadford keeps running as normal. Your opening times are the first thing we ask for.
Which environmental health team covers Dadford?
In Dadford, it’s Buckinghamshire council that carries out food hygiene inspections. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.
What does TR19 mean?
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 is a WFTT or DTT grease test?
The Wet Film Thickness Test (WFTT) and Deposit Thickness Test (DTT) measure how thick the grease is at a given point. We take readings at set points from canopy to fan.
Do you check other contractors’ cleans?
It’s an inspection after cleaning, to show what state the system was left in, for our cleans and other firms’ alike.
Can you look after several sites?
Yes. You deal with one contact for every site across London and the South East, and visits can be set on a regular cycle.
Which accreditations do you hold?
Duct Doctor is 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 does the waste go?
It leaves the site with us at the end of the visit. During the work, it’s contained so the area stays clean.
What TR19 inspection cannot fix
Not every problem is solved by TR19 inspection, and we will tell you before work begins. It will not put right:
- Hidden runs that need access panels first
- Design faults in the extract system
- Fan breakdowns, which need a repair visit
Not sure which it is? You can give us a ring on 0345 646 2711, or send details by email and we’ll tell you honestly before you book.
Where we work
- Insurer audits
- Wet film thickness tests
- Pre-clean surveys
- Post-clean checks
- Deposit thickness tests
- Access surveys
Why it’s worth doing now in Dadford
A check after cleaning shows whether the work reached every part it should have, while there’s still time to put anything right. It’s simpler to plan the work at Dadford now than to arrange it in a hurry later.
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered and we’ll price it together.
Why choose Duct Doctor in Dadford
- A written report with pictures after every visit
- Ventilation hygiene specialists since 2009
- Fixed quotes, normally within one working day
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
Take a look at our cost guide or our accreditations and certificates.
What we’re called out for in Dadford
Not every section of a kitchen extract is easy to get to, and grease can be missed there clean after clean. An inspection of a system in Dadford shows where access panels are missing, so the gaps can be closed.
The symptoms we’re asked about most include:
- Sites with gaps in their extract records
- Ductwork where grease may be over the TR19 limits
- Confirming a clean reached the whole system
- Systems cleaned on a calendar with no measurements
If you run a church or community hall kitchen, near Parish Church of St Mary or elsewhere in Dadford, its extract still collects grease from every lunch and event.
Questions to ask before you book
- When the next visit should be, and why
- Proof of accreditation you can verify
- Whether the whole system is included, or only the parts that are easy to reach
- What insurance they carry