Oxfordshire · TR19 inspections and grease testing

TR19 Inspection in Stonor

TR19 inspections, grease thickness testing, pre-clean surveys and post-clean verification in Stonor, surveyed first and signed off with a written report and photos. Call for a fixed quote.

  • Kitchens whose menu or hours have changed
  • Checking the result of a recent clean
  • Systems cleaned on a calendar with no measurements

Need TR19 inspection in Stonor?

Managing agents and facilities teams in Stonor

We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we are happy to quote for all of it.

Multi-site operators often want one contractor and one number. We work across London and the South East, so visits at different addresses can be planned together and kept on a regular cycle.

How we handle TR19 inspection in Stonor

If you’ve taken over a kitchen in Stonor and do not know when the extract was last cleaned, an inspection is the place to start. We survey the system, measure the grease and tell you what needs doing, before any cleaning is booked. If you’re dealing with sections of duct that can’t be reached and cleaning intervals that may not suit the kitchen, we can put it right, from access surveys, wet film thickness tests and insurer audits onwards.

For a kitchen in or near Stonor, 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 to discharge, then a TR19® certificate and a photo report.

For insurers and inspectors, the record counts. So every job comes with a written report and pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.

Place
Stonor (RG9)
Region
Oxfordshire
Reporting
TR19® certificate and photo report
Price
A fixed quote up front
Working hours
When your site is closed, plus a 24/7 line
Telephone
0345 646 2711
Reviewed
30 October 2026
Five Duct Doctor technicians in navy uniforms with the company vans

Fixed quotes for TR19 inspection in Stonor

The survey tells us what the work involves. We look at:

  • Whether it’s a one-off visit or part of a schedule
  • Access, including roofs, risers and ceiling voids
  • What state the system is in
  • The size of the system

A single site or a whole portfolio, the quote is built the same way: the work involved, the access and the timing. You’ll have a fixed price before any work starts.

Helping us quote

To speed up the quote, send us:

  • The times we could work without disrupting the site
  • Problems your staff have spotted
  • How we’d reach plant on a roof or in a plant room
  • A few general shots of the system

Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.

Stonor kitchens: local notes

Oxfordshire Fire and Rescue Service covers Stonor. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. In Stonor, food businesses are inspected by environmental health officers from Buckinghamshire council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. A TR19® certificate and photo report after each clean gives you a record to show an inspector.

Church and community hall kitchens, near Pishill Church or anywhere around Stonor, are easy to forget, but their extracts collect grease like any other.

Stonor is about 5 miles north of Henley-on-Thames, in Oxfordshire. Anywhere in RG9, we can carry out TR19 inspection at your premises. Across Oxfordshire, we cover 443 places, and Stonor is one of them. For sites nearby, see our Reading page (11 miles or so).

Every address in RG9 is within our area for TR19 inspection, from the main roads to the quietest streets. If your site is just outside Stonor, we cover Turville Heath (1 mile north-east), Northend (2 miles north), Christmas Common (2 miles north-west), Cookley Green (3 miles west) and Howe Hill (3 miles north-west). Further out, we also cover Didcot (13 miles west), Thame (10 miles north), Henley-on-Thames (5 miles south), Benson (7 miles west), Chinnor (7 miles north) and Tilehurst (11 miles south-west).

Local landmarks in Stonor

Locally, jobs take us to businesses close to The Crown Inn Public House, among other places. Open spaces near Stonor include Warburg Nature Reserve and Bald Hill.

Map of Stonor © OpenStreetMap contributors

Part by part

Extract fan and discharge

We look at where the extract discharges outside, as grease can build up there too.

Schools, hospitals and care homes

Hospital and care home kitchens can cook all day, every day. Testing shows if the cleaning interval keeps pace.

FAQs for Stonor

Which council inspects kitchens in Stonor?

The local authority for Stonor is Buckinghamshire council, and its environmental health team does the inspecting. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.

Who enforces fire safety at workplaces in Stonor?

Oxfordshire Fire and Rescue Service is the fire and rescue service for Stonor. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.

Which accreditations do you hold?

CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We’re fully insured and have been trading since 2009.

How much time does an inspection need?

An inspection takes around an hour or two per canopy and duct system. Large or multiple systems take longer, so phone us on 0345 646 2711 or email us and we will plan it.

Do you work in Stonor?

Yes. Our area takes in London and the counties of South East England, and that includes Stonor.

How much does TR19 inspection cost in Stonor?

We do not publish prices, because the cost depends on the job: the size of the system, its condition, access and when we can work. You get a fixed price before any work starts.

Do you check other contractors’ cleans?

Post-clean verification is a check after a clean, with fresh grease readings and pictures. It works whoever carried out the clean.

What is grease thickness testing?

Readings are taken using the Wet Film Thickness Test or the Deposit Thickness Test, and set against the TR19® Grease figures.

Signs you need TR19 inspection in Stonor

As hot, greasy air travels up the duct, it cools and leaves a film behind. The thickest layers can sit out of sight in the plenum, at bends and along flat runs.

The symptoms we’re asked about most include:

  • Uncertainty over how often to clean
  • Checking the result of a recent clean
  • Missing TR19 certificates or history
  • Systems cleaned on a calendar with no measurements

Stonor Park, about 0.5 miles south-east, is one of the historic houses near Stonor; if you run event catering at a venue like that, cleans can be booked between functions.

What your quote should include

  • How areas they cannot reach will be recorded
  • Whether the quote is based on a survey or photos
  • What insurance they carry
  • Whether the figure could change on the day

Questions to ask before you book

How the visit works

Every visit runs to the same pattern: sheeting and protection first, isolate whatever needs isolating, do the work, clear away and hand over the paperwork. The visit itself takes a couple of hours for a typical kitchen extract system. If you can send pictures, we can arrive in Stonor knowing what to expect.

  1. First we look at the system’s cleaning history, if there is one.
  2. The layout is traced from the canopy to the discharge.
  3. Access panels are located and any missing ones noted.
  4. We measure the grease and photograph each point.
  5. We report back with readings and a fixed quote.

How to prepare

  • Make sure equipment near the work can be switched off and left to cool
  • Mention any parking or loading restrictions
  • Tell us the best time to work, such as after service or at a weekend

Getting a quote

Getting a quote does not take long. Call or email with a few details and you will usually have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.

Get a price

Related advice

Why deal with it now?

Finding a hotspot early means a targeted spot clean rather than a bigger problem later. Ignored, the layer only gets thicker. Equipment tucked in a roof space or outbuilding near Stonor rarely gets looked at unless someone books it.

What you pay depends on how big the system is, what state it’s in and how easy it is to reach. You get a fixed price before work begins, so you know where you stand.

Why choose Duct Doctor in Stonor

  • In business since 2009
  • One number for every site across the South East and London
  • We diagnose before we treat
  • Each visit written up, with pictures

Read what affects the cost and our accreditations.

What TR19 inspection cannot fix

TR19 inspection can’t fix everything, and we will tell you before any work starts. It doesn’t solve:

  • Fan breakdowns, which need a repair visit
  • Installation problems, which fall under design guidance such as DW172
  • Removing the grease, which is a separate clean

If in doubt, phone us on 0345 646 2711, or email photos and we’ll say what we think before booking.

What we work on in Stonor

  • Pre-clean surveys
  • Insurer audits
  • Wet film thickness tests
  • Access surveys
  • Deposit thickness tests
  • Post-clean checks
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