Buckinghamshire · TR19 inspections and grease testing

TR19 inspections in Great Missenden

TR19 inspections, grease thickness testing, pre-clean surveys and post-clean verification for commercial sites in Great Missenden and across Buckinghamshire. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.

  • Systems that need surveying before cleaning
  • Cleaning intervals that may not suit the kitchen
  • Missing access panels found on survey

Book TR19 inspection in Great Missenden

TR19 inspection in Great Missenden

Grease thickness testing tells you how much grease is sitting in the canopy, ducts and fan. 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 pre-clean surveys, insurer audits and deposit thickness tests, and the jobs we see most are missing TR19 certificates or history and systems that need surveying before cleaning.

For a kitchen in or near Great Missenden, the visit is planned around opening hours and the journey, and the clean itself is the same full TR19® job as in any town: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.

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.

Five Duct Doctor technicians in navy uniforms with the company vans
Location
Great Missenden (HP16)
Wider area
Buckinghamshire
Paperwork
TR19® certificate and photo report
Quotes
A fixed quote up front
When we work
After hours by arrangement; emergencies any time
Call
0345 646 2711
Checked
30 October 2026

Fixed quotes for TR19 inspection in Great Missenden

Some jobs are bigger than they look, and some smaller. The main factors:

  • How easy every part is to reach
  • When the work can happen, such as evenings, overnight or weekends
  • The scale of the work
  • Parking and loading at the site

A single site or a whole portfolio, we price it on the same basis: the work involved, the access and the timing. The price is fixed before we start.

What to send for a quote

Many jobs can be priced from photos and some basics. Send what you can of the following:

  • Where the plant sits or the system leaves the building, such as a roof or outside wall
  • Any previous report or certificate
  • Photos showing the whole system and its surroundings
  • The site address and the type of premises

To help us quote: the address, the type of site and when it’s open, a few pictures and any previous report or certificate. Then call us on 0345 646 2711 or send us an email.

Landlords, agents and facilities managers

If you look after several sites, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so records stay tidy.

Whether it’s one building or many, the standard is the same: diagnosis, a fixed price, work booked around your hours and a written report with pictures.

Looking after it afterwards

Aftercare is simple, and it helps at the next visit:

  • Keep grease filters clean and fitted properly
  • Store grease readings where your insurer can see them
  • Do not box in or cover duct access panels
  • Tell us if menus or opening hours change

Each report suggests the next clean and the next test, based on the readings and how the kitchen is used.

Revisit the cleaning interval whenever the menu or hours change. A quick grease test answers the question.

Why act early in Great Missenden

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 worth booking a check, because nobody sees inside a duct day to day.

Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we’ll explain each part.

Why us?

  • Every job surveyed first
  • A single point of contact for sites across the South East and London
  • In business since 2009
  • Fixed quotes, typically within one working day

See what affects the cost and our accreditations and certificates.

Your questions about TR19 inspection in Great Missenden

Can you get to a site in Great Missenden?

Yes, Great Missenden is part of our area, however small the site. Let us know about access, parking and anything unusual about getting there when you book.

Can you come to Great Missenden after we close?

Yes, out-of-hours work is a big part of what we do. That way a site in Great Missenden does not have to lose a day’s trading. Just call 0345 646 2711, or send details by email with your opening times and we’ll plan around them.

What do you do to protect the area?

By covering it before any work starts. The work is kept contained and leave the area clean.

Can we book visits on a schedule?

Yes. Tell us what you have and how it’s used, and we’ll suggest a schedule and quote for it.

Do you have a 24/7 line?

Yes, any time. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we will advise on what to do next.

What is grease thickness testing?

Readings are taken using the Wet Film Thickness Test or the Deposit Thickness Test, then compare them with the TR19® Grease figures.

How often should grease be tested?

Enough to be sure grease stays within the TR19® Grease figures between cleans. If readings rise, the interval should shorten.

What is post-clean verification?

Post-clean verification is a check after a clean, with fresh grease readings and pictures. It can follow our own cleans or another contractor’s.

What your team can do, and what needs us

When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We will take a look and give you a fixed quote.

Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.

Kitchen extracts in Great Missenden

Food Standards Agency records include about 6 pubs and bars within 1.5 miles or so of the middle of Great Missenden. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. In Great Missenden, food businesses are inspected by environmental health officers from Buckinghamshire council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. A dated certificate in the maintenance file answers the question before it’s asked. Great Missenden is covered by Buckinghamshire Fire and Rescue Service. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract.

Healthcare kitchens, like those at hospitals such as Chiltern Hospital (about 1.1 miles south-east), often cook for long hours, which puts them in BESA’s heavier-use bands. For schools such as Great Missenden CofE Combined School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed. For kitchens close to Great Missenden station, where the day often starts early and ends late, the extract can be cleaned overnight.

Great Missenden is about 4 miles west of Chesham, in Buckinghamshire. For TR19 inspection in and around Great Missenden, it’s easy to get a fixed quote: please call 0345 646 2711 or send us an email. We work across South East England and London, Great Missenden included. 263 places in Buckinghamshire are on our list, from busy centres to quieter spots. There’s also a page for Reading, roughly 21 miles from Great Missenden.

Here we cover the HP16 postcode area for TR19 inspection. Whether your site is on High Street, London Road and Station Approach or a nearby road, we can help. Nearby, we also carry out TR19 inspection in Hunt's Green (2 miles north), Wendover Dean (2 miles north-west), Lee Gate (3 miles north), Great Hampden (3 miles west) and Kingsash (3 miles north). Further out, we also cover Aylesbury (9 miles north-west), High Wycombe (5 miles south), Chesham (4 miles east), Marlow (9 miles south), Amersham (5 miles south-east) and Beaconsfield (7 miles south).

Landmarks near Great Missenden

Typical jobs here are in premises near The Cross Keys Public House, Misbourne School and Missenden Abbey Adult Education College, among other places. Great Missenden has its own railway station: Great Missenden station. Well-known places in the area include Hawridge Court (4.5 miles north-east) and Chiltern Hospital (1.1 miles south-east). Green spaces nearby include Coombe Hill and Prestwood Local Nature Reserve.

Map of Great Missenden © OpenStreetMap contributors

Part by part

Horizontal duct runs

Flat duct runs collect grease along their base. Readings are taken along each run through its access panels.

Extract fan and discharge

Grease builds up on the fan blades and inside the housing. They’re included in the readings and photos.

What happens on the day

On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool before we start, and floors and nearby surfaces are sheeted. The work itself takes around an hour or two per canopy and duct system. Pictures of the system and its access let us plan the work in Great Missenden before we set off.

  1. Post-clean verification is booked once the clean is done.
  2. The same access points are opened up.
  3. We repeat the WFTT or DTT readings.
  4. Photos are taken to show the condition after the clean.
  5. We report the findings and flag any areas that need more work.

How to prepare

  • Dig out any earlier paperwork for the system
  • Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
  • Clear the space around the work

Ask for a quote

Want a quote for TR19 inspection? Please give us a ring on 0345 646 2711 or email us and tell us about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.

Get a quick quote

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BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London