Hertfordshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Roe Green, Hertfordshire
TR19 inspection for Roe Green and the surrounding area: diagnosis first, then a fixed quote, the work and a report with photos. Ask us for a fixed quote.
- Checking the result of a recent clean
- Kitchens whose menu or hours have changed
- Missing TR19 certificates or history
What happens if it’s left?
Don’t wait for an EHO visit or insurance renewal to find gaps in your extract records. A recent inspection report means you’re ready when asked. Out of sight is the usual reason a rural system goes too long without attention.
The price reflects the work, not guesswork. That’s why we survey first, from pictures or on site, and the price is agreed before we start.
Why us?
- Ventilation hygiene specialists since 2009
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Work around your opening hours, with 24/7 emergency cover
- Photo reports with every job
About our TR19 inspection in Roe Green
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. From the numbers, you can see whether cleaning is due. We are often asked to deal with sections of duct that can’t be reached and extracts that may be over the 200 micron mean, across access surveys, post-clean checks and pre-clean surveys.
In a village or hamlet like Roe Green, the kitchens that need extract cleaning are normally a pub, a school, a care home or a hall kitchen, wherever there is one. Each still has a canopy and duct that collect grease, whatever the size of the place.
We have been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.

- Location
- Roe Green (SG9)
- Wider area
- Hertfordshire
- Records
- Certificate and photo report
- Price
- A fixed price before we start
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
How it works
At the end of the visit, someone from your team can look over the work with us. Anything we couldn’t reach or that needs attention is pointed out there and then, and it goes on the report too. The visit takes a morning or less for one kitchen, more where there are several systems. Somewhere like Roe Green, lanes, gates and parking are worth mentioning in advance.
- First we book a time that won’t disrupt cooking.
- We look over the canopy, plenum, ducts, fan and discharge.
- Grease thickness is measured at set points by WFTT or DTT.
- Photos are taken at each point, and access gaps noted.
- We send a report setting out the readings, photos and next steps.
Preparing for the visit
- Allow time for equipment near the work to be turned off and cool down
- Clear the space around the work
- Dig out any earlier paperwork for the system
How to get a quote
For a fixed quote, call us on 0345 646 2711, or send details by email with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. We usually come back within one working day.
Read more
Do you need TR19 inspection in Roe Green?
Grease builds up as cooking vapour cools inside the extract. The thickest layers can sit out of sight in the plenum, at bends and along flat runs.
Any of these means the system needs a check-up:
- Sections of duct that can’t be reached
- Pre-clean surveys before a first TR19 clean
- Kitchens taken over with no cleaning records
- An insurer’s request for a TR19 audit
Church and community hall kitchens, near Church of All Saints or anywhere around Roe Green, are easy to forget, but their extracts collect grease like any other.
What your quote should include
- What’s included in the scope, part by part
- Whether a written report and photos are included
- Proof of accreditation you can verify
- Whether a survey comes first
Common questions in Roe Green
Who inspects food businesses in Roe Green?
Food hygiene inspections in Roe Green are carried out by North Hertfordshire council. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
Who is the fire and rescue service for Roe Green?
Hertfordshire Fire and Rescue Service is the fire and rescue service for Roe Green. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
What information do you need?
A short description and a few photos, with the address and opening hours. If we need more, we’ll ask.
How far ahead should we book?
The more notice, the better, especially for out-of-hours work. We normally quote within one working day, and there’s a 24/7 line for emergencies.
Can you inspect our extract for our insurance company?
Yes. Insurers often want evidence the extract is managed to TR19®, and an audit report gives you that, along with any actions needed.
What’s TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Is a quote from pictures possible?
Yes, if we can see what we need. If not, a site survey comes first, then a fixed quote.
What is grease thickness testing?
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.
What the work involves, part by part
Extract fan and discharge
A greasy fan works harder and wears faster. Readings show if it needs attention before the next clean.
Horizontal duct runs
Bends and long runs can hold heavy deposits, out of sight of the kitchen.
Also in Roe Green
TR19 inspection around Roe Green
Food hygiene inspections in Roe Green are the job of North Hertfordshire council’s environmental health team. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. A TR19® certificate and photo report after each clean gives you a record to show an inspector. Hertfordshire Fire and Rescue Service covers Roe Green. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk.
Bursars and site managers at schools such as Sandon Junior Mixed and Infant School tend to book extract cleaning for when the kitchen is empty.
Roe Green is in Hertfordshire. Roe Green gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with photos. Roe Green is one of 381 places in Hertfordshire we cover for TR19 inspection. You can also see our page for Milton Keynes, roughly 29 miles from Roe Green.
Every address in SG9 is within our area for TR19 inspection, from the main roads to the quietest streets. Other places close to Roe Green include Sandon (1 mile north-east), Green End (1 mile east), Rushden (1 mile south-west), Buckland (3 miles east) and Chipping (3 miles south-east). Larger places within reach include Stevenage (7 miles south-west), Bishop's Stortford (13 miles south-east), Welwyn Garden City (14 miles south), Hitchin (8 miles west), Hertford (13 miles south) and Letchworth (6 miles west).
Around Roe Green
For rail, the closest station is Ashwell & Morden station, roughly 3.2 miles north of the centre. A little further out are Clothall Castle (3.1 miles south-west). For a walk, there’s Hawkins Wood.
Keeping the system healthy
To keep the system working properly between visits:
- Do not box in or cover duct access panels
- Keep TR19 certificates, readings and reports together
- Flag oily drips near the extract
- Clean grease off the canopy between professional cleans
Where sections couldn’t be reached, the report says where access panels would help. With panels fitted, the next clean can cover every section.
Keep filters clean and in place. Gaps around filters let grease get past them.
What a clean won’t put right
An honest diagnosis matters more to us than a booking, so here’s what TR19 inspection won’t do:
- Removing the grease, which is a separate clean
- Ductwork that was designed or installed badly
- The responsible person’s own fire risk assessment
If you are not sure, just call us on 0345 646 2711 or use the quote form and we’ll give you a straight answer.
What the work covers
- Deposit thickness tests
- Insurer audits
- Access surveys
- Post-clean checks
- Pre-clean surveys
- Wet film thickness tests
How we price TR19 inspection
Your quote is based on your site. We consider:
- One-off work versus a regular cycle
- Site rules, permits and inductions
- The condition we find in the survey
- Travel, parking and unloading
The cost depends on how big the system is, what state it’s in and how easy it is to reach. We give you a fixed price before we start, so you know where you stand.
What we need to know
What to send for a quote:
- Close-ups of filters, grilles, hatches or access panels
- How we’d reach plant on a roof or in a plant room
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- A few general shots of the system
Quoting starts with a diagnosis, from your photos and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work so you know the cost before work begins.