Oxfordshire · TR19 inspections and grease testing

TR19 inspections and grease testing in Preston Crowmarsh, Oxfordshire

Our technicians work in Preston Crowmarsh on TR19 inspections, grease thickness testing, pre-clean surveys and post-clean verification. Fixed quotes, work around your opening hours and photo reports on every job.

  • Heavy grease suspected in the plenum or ducts
  • Missing TR19 certificates or history
  • Post-clean verification after another contractor’s clean

TR19 inspection across Preston Crowmarsh

How we handle TR19 inspection in Preston Crowmarsh

Post-clean verification is a check carried out once the cleaning is done, with fresh grease readings, pictures and a look at the areas that were cleaned. It shows whether the system was left in the condition the paperwork describes. Typical jobs include pre-clean surveys before a first TR19 clean and uncertainty over how often to clean, across pre-clean surveys, access surveys and wet film thickness tests.

In a village or hamlet like Preston Crowmarsh, the kitchens that need extract cleaning are typically a pub, a school, a care home or a hall kitchen, wherever there is one. Every one of them still needs its extract kept clear of grease, whatever the size of the place.

We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. On top of that, we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we’ve been trading since 2009.

The Duct Doctor team standing beside their branded white and blue vans
Place
Preston Crowmarsh (OX10)
Region
Oxfordshire
Records
Certificate and photo report
Quotes
A fixed quote up front
When we work
Out of hours as standard, 24/7 emergency line
Telephone
0345 646 2711
Page updated
30 October 2026

How the visit works

Our technicians bring everything the work needs, including protection sheets, the right tools and access kit. All we need from you is clear access and the right equipment switched off. The visit takes around an hour or two per canopy and duct system. Somewhere as small as Preston Crowmarsh, the date and timings are agreed with you well before the day.

  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. We note where access panels are and where more are needed.
  4. Grease readings are taken and photos recorded.
  5. We report back with readings and a fixed quote.

Getting ready for the visit

  • Tell us about site rules, permits or sign-in
  • Dig out any earlier paperwork for the system
  • Clear loose items from the work area

Get a fixed quote

Some systems can be priced from photos; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, you get a fixed price before work begins.

Get a quick quote

Advice

For landlords and multi-site operators

Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we will send a fixed quote.

From a single site to a large estate, you get the same standard: a survey first, a fixed quote, the work timed around the site and a report with pictures.

Why it’s worth doing now in Preston Crowmarsh

An EHO visit, an insurance renewal or a fire risk assessment is a bad time to find your extract records are thin. An inspection now gives a site in Preston Crowmarsh a current picture. Rural sites cannot always move to another kitchen or room when something fails.

Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all play a part.

Why choose Duct Doctor in Preston Crowmarsh

  • Photo reports with every job
  • CHAS, SafeContractor and ISO 9001
  • Fixed quotes from a survey or pictures
  • One contact for all your sites in London and the South East

See our cost guide or our accreditations and certificates.

Kitchen extracts in Preston Crowmarsh

Food Standards Agency data counts about 20 restaurants, cafés and works canteens and about 10 sandwich bars and takeaways within roughly a mile and a half of the centre of Preston Crowmarsh. Where they cook under a canopy, a grease reading is the way to tell whether the extract is due a clean. It’s South Oxfordshire council that sends environmental health officers to food businesses in Preston Crowmarsh. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Before-and-after pictures from each clean are a simple way to show the extract is in hand. Fire safety in Preston Crowmarsh falls to Oxfordshire Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk.

If you run catering at a historic house or estate in the area (Brightwell Manor is about 2.4 miles west), event kitchens in older buildings often have awkward duct runs that need planning. For schools such as Benson Church of England Primary School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed.

Preston Crowmarsh is about 1 mile south-west of Benson, in Oxfordshire. Anywhere in OX10, we can take on TR19 inspection. Preston Crowmarsh is one of 443 places in Oxfordshire we cover for commercial clients. You can also see our page for Oxford, about 11 miles away.

Work in OX10 follows the same survey, fixed quote and written report as everywhere else we cover. You will find streets such as St Helen's Avenue, St Helens Way and St Helen's Crescent, and we cover them all for TR19 inspection. Neighbouring places we cover for TR19 inspection include Benson (1 mile north-east), Wallingford (1 mile south-west), Shillingford (2 miles north-west), Brightwell-cum-Sotwell (2 miles west) and Warborough (2 miles north-west). Further out, we also cover Oxford (11 miles north-west), Didcot (6 miles west), Abingdon-on-Thames (9 miles north-west), Thame (11 miles north-east), Wantage (14 miles west) and Henley-on-Thames (10 miles south-east).

Local landmarks in Preston Crowmarsh

Typical jobs here are in premises near The Castle Inn Public House, Howbery Park and Wallingford School. For rail, the closest station is Cholsey station, roughly 3.6 miles south-west. A little further out are Aston Martin Heritage Trust Museum (3.4 miles north) and Wallingford Castle (0.8 miles south-west). Not far away are Ewelme Watercress Beds and Wittenham Clumps.

Map of Preston Crowmarsh © OpenStreetMap contributors

What staff can safely do

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.

A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. Leave those to us.

What affects the cost of TR19 inspection

Your quote is based on your site. We consider:

  • The scale of the work
  • A single visit or a regular plan
  • The condition of the system
  • Site rules, permits and inductions

When the work has to happen, how we reach it and how big the site is can all change the price. We take each of them into account and give you a fixed price before we start.

What to send for a quote

When you call or email, these details help:

  • When the site is open and when it’s quiet
  • A few general shots of the system
  • Any previous report or certificate
  • The roof, plant room or outside wall the system runs to

To get a fixed quote, ring 0345 646 2711 or drop us a line and tell us the type of site, your opening hours and roughly what the system looks like. A few photos and your last certificate or report help a lot. You’ll typically have a quote within one working day.

What we are called out for in Preston Crowmarsh

Not every section of a kitchen extract is easy to get to, and grease can be missed there clean after clean. A survey finds the sections that cannot be reached, so the gaps can be closed.

Common reasons sites call us include:

  • Kitchens whose menu or hours have changed
  • Surveys needed before quoting a full clean
  • Extracts that have never been grease tested
  • An insurer’s request for a TR19 audit

Church and community hall kitchens, near Church of St Helen or anywhere around Preston Crowmarsh, are easy to forget, but their extracts collect grease like any other.

What your quote should include

  • What hours they’ll be on site
  • Whether VAT is included
  • How areas they cannot reach will be recorded
  • Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor

How to choose an extract cleaning contractor

Common questions in Preston Crowmarsh

Will you come out to Preston Crowmarsh?

Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.

Who would carry out a food hygiene inspection at a kitchen in Preston Crowmarsh?

In Preston Crowmarsh, it’s South Oxfordshire council that carries out food hygiene inspections. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.

Can you look after several sites?

Yes. We work across South East England and London, so we can schedule a run of sites as one programme. Every site has its own report.

Do you look at the system first?

Yes. Photos often do the job, while bigger or harder-to-see systems are surveyed on site.

How do you measure grease in a kitchen extract?

It’s a measurement of how much grease is coating the inside of the extract, by WFTT or DTT. The results are given in microns.

Are you accredited?

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

When should we have our next grease test?

Enough to be sure grease stays within the TR19® Grease figures between cleans. The readings themselves tell you if the interval needs to change.

What do you need from me for a quote?

Where the site is, what it is and when it’s open, along with a few photos and any previous report.

Different parts, different methods

Canopy and plenum

Filters can look fine while the plenum behind them is heavily coated. That is why we test behind them.

Vertical risers

In buildings with several floors, the riser may pass through other tenants’ space, so we arrange access ahead of time.

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