Hertfordshire · TR19 inspections and grease testing

TR19 Inspection in Graveley

TR19 inspection for Graveley and the surrounding area: diagnosis first, then a fixed quote, the work and a report with photos. Ask us for a fixed quote.

  • Confirming a clean reached the whole system
  • Systems cleaned on a calendar with no measurements
  • Kitchens taken over with no cleaning records

Need TR19 inspection in Graveley?

How we handle TR19 inspection in Graveley

Think of a TR19 inspection as the diagnosis before the treatment. We look at the system, take grease readings and photograph what we find, so the clean can be planned properly. Common call-outs are for missing access panels found on survey and post-clean verification after another contractor’s clean, on pre-clean surveys, access surveys and deposit thickness tests.

Somewhere as small as Graveley, 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, whatever the size of the place.

Insurers, fire officers and environmental health officers all look at records. That is why every job is written up in a report with pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.

Before and after view down the inside of a rectangular extract duct
Location
Graveley (SG4)
Wider area
Hertfordshire
Reporting
Certificate plus before-and-after photos
Quotes
Fixed quote, usually within a working day
When we work
When your site is closed, plus a 24/7 line
Phone
0345 646 2711
Last updated
30 October 2026

TR19 inspection around Graveley

The FSA’s food hygiene register includes about 7 pubs, bars and clubs across Graveley and its immediate surroundings (about a mile and a half). Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Kitchens in Graveley get their food hygiene inspections from North Hertfordshire council. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. A TR19® certificate and photo report after each clean gives you a record to show an inspector. Hertfordshire Fire and Rescue Service covers Graveley. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk.

Term dates shape school work: for a school like Graveley Primary School, an extract clean fits neatly into a half-term or summer break. A hall kitchen that only cooks for events, whether near Church of St Mary or elsewhere in Graveley, still needs its extract cleaned, just less often.

Graveley is about 2 miles north-west of Stevenage, in Hertfordshire. Whatever kind of site you run in Graveley, TR19 inspection is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Our area takes in 381 places across Hertfordshire, from busy centres to quieter spots. We also work in Milton Keynes, around 25 miles away.

Here we cover the SG4 postcode area for TR19 inspection. We cover sites on High Street, Oak Lane and Ashwell Close and nearby roads. Neighbouring places we cover for TR19 inspection include Todd's Green (1 mile south-west), Great Wymondley (1 mile north-west), Little Wymondley (1 mile west), Titmore Green (1 mile south-west) and Lower Titmore Green (1 mile south-west). Larger places within reach include St Albans (14 miles south), Welwyn Garden City (10 miles south), Harpenden (10 miles south-west), Hitchin (3 miles west), Hoddesdon (15 miles south-east) and Hatfield (12 miles south).

Around Graveley

In Graveley, that means kitchens and buildings near Waggon And Horses Public House, Church of Saint Nicholas and The John Henry Newman School. Graveley’s nearest station is Stevenage station, about 2.4 miles south of the centre. A little further out are Wymondley Castle (1.1 miles west) and Stevenage Museum (2.4 miles south). For a walk, there’s Purwell Ninesprings.

Map of Graveley © OpenStreetMap contributors

Questions from Graveley

Is Graveley within the area you cover?

Yes. Villages and rural sites across the South East are part of our work, Graveley included. Let us know about access, parking and anything unusual about getting there when you book.

Which fire and rescue service is responsible for Graveley?

That is Hertfordshire Fire and Rescue Service. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.

How do you measure grease in a kitchen extract?

It’s a measurement of how much grease is coating the inside of the extract, using the Wet Film Thickness Test (WFTT) or Deposit Thickness Test (DTT). The results are given in microns.

Can you price the work without visiting?

Yes, for many jobs. Send a few wide pictures plus close-ups of panels, filters or grilles, and a fixed quote normally follows within one working day. If pictures are not enough, we will survey first.

What is post-clean verification?

It’s an inspection after cleaning, to show what state the system was left in, whoever did the clean.

At what point does grease need cleaning?

TR19® Grease says the mean shouldn’t exceed 200 microns between cleans, with 500 microns or more anywhere needing immediate spot cleaning.

What information do you need?

Just the basics: the address, the site type, your opening hours and how we reach the system. Photos and any previous paperwork make it quicker. After that, simply ring 0345 646 2711, or send details by email.

What’s TR19?

It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping and expects a risk-based approach.

Different parts, different methods

Schools, hospitals and care homes

Inspections are planned around mealtimes and holidays to avoid disruption.

Restaurants, pubs and hotels

BESA’s minimum for heavy use of 12 to 16 hours a day is a clean every 3 months, with testing showing whether more is needed.

Multi-site and managed buildings

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

Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.

When something else is needed

Some problems need a different service or another trade:

  • 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

Not sure which it is? You can ring 0345 646 2711 or drop us a line and we’ll tell you honestly before booking.

Where we work

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

What we do, step by step

We start by comparing what we find with the survey or your pictures. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes around an hour or two per canopy and duct system. In a small place like Graveley, the journey is planned ahead and the visit arranged around the site’s hours.

  1. Post-clean verification is booked once the clean is done.
  2. We open the access points used on the clean.
  3. Grease readings are taken again at set points.
  4. Photos are taken to show the condition after the clean.
  5. The results are reported, with anything missed flagged.

How to prepare

  • Tell us where we can park and unload
  • Find the previous report, if there is one
  • Allow time for equipment near the work to be turned off and cool down

Getting a quote

Every quote begins with a look at the system, from your pictures and details or, where that is not enough, a survey on site. Then we send a fixed price so you know the cost before we start.

Get a price

Related advice

In-house cleaning or a specialist?

If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We can diagnose it and quote.

Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that is where we come in.

What we are called out for in Graveley

You can’t judge grease thickness by eye. Clean filters can hide a heavy layer behind them, which is why readings matter.

Any of these means the system needs a check-up:

  • Kitchen extract systems with no recent grease readings
  • Kitchens taken over with no cleaning records
  • Cleaning intervals that may not suit the kitchen
  • Extracts that may be over the 200 micron mean

A hospital like Lister Hospital, about 0.8 miles south, is the kind of site where a kitchen may cook for patients, staff and visitors all day.

Before you book anyone

  • Proof of insurance
  • Whether they recommend a next date
  • How VAT is shown on the quote
  • Whether the price is fixed

How to choose an extract cleaning contractor

Aftercare tips

How long the results last depends on use and care. We suggest:

  • Tell us if menus or opening hours change
  • Keep the route to access panels clear
  • Keep canopy edges and gutters wiped down
  • File every inspection report with your certificates

Keep the verification report next to the certificate it relates to. The pair gives a clear record of the clean and the check.

Clean, correctly fitted filters stop more grease reaching the duct. Missing or damaged filters let grease straight into the plenum.

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