Hertfordshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Pottersheath, Hertfordshire
Looking for TR19 inspection in Pottersheath? We survey first, send you a fixed quote and work around your opening hours, then sign off with a report and pictures.
- An insurer’s request for a TR19 audit
- Ductwork where grease may be over the TR19 limits
- Systems cleaned on a calendar with no measurements
TR19 inspection in Pottersheath, done properly
A grease test measures how thick the grease is inside a kitchen extract system. 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. If you are dealing with missing access panels found on survey and kitchen extract systems with no recent grease readings, we can put it right.
Work in a small place like Pottersheath starts with a call to agree access and timings, and the clean covers the whole system, as it would anywhere: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we are fully insured. We’re also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Where
- Pottersheath (AL6)
- Region
- Hertfordshire
- Records
- TR19® certificate and photo report
- Quote
- A fixed price before work begins
- Working hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
Part by part
Canopy and plenum
Clean-looking filters do not mean a clean plenum. That is why we test behind them.
Vertical risers
Vertical risers take the extract up through the floors. Grease can run down and collect at the base, so we check there.
How it works
Every visit runs to the same pattern: protect the area, make the system safe, do the work, tidy up and leave you the report. On site, the work takes a couple of hours for a typical kitchen extract system. In a small place like Pottersheath, the journey is planned ahead and the visit arranged around the site’s hours.
- Post-clean verification is booked once the clean is done.
- The same access points are opened up.
- We repeat the WFTT or DTT readings.
- Photos are taken to show the condition after the clean.
- We report the findings and flag any areas that need more work.
Getting ready for the visit
- Make sure someone can let us in and lock up afterwards
- Find the previous report, if there is one
- Let us know how we reach the system, including roofs, risers and plant rooms
Get a fixed quote
Need a price for TR19 inspection? Please give us a ring on 0345 646 2711 or email us with a few details about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.
Related advice
What we’re called out for in Pottersheath
TR19® is the benchmark that insurers, fire officers and EHOs refer to. TR19® itself is not law, but the Regulatory Reform (Fire Safety) Order 2005 requires the responsible person to assess and reduce fire risk, and grease in the extract is part of that risk.
Most sites get in touch when they notice something like this:
- Kitchen extract systems with no recent grease readings
- Kitchens whose menu or hours have changed
- Confirming a clean reached the whole system
- Sections of duct that cannot be reached
School kitchens, at schools like Oaklands Primary School for example, are usually cleaned in the holidays so no lunches are lost.
What to look for in a quote
- Whether VAT is included
- If the quote is a fixed price or an estimate
- Proof of insurance
- When the next visit should be, and why
What TR19 inspection looks like in Pottersheath
There are about 10 restaurants, cafés and works canteens in Pottersheath and the streets around it, up to about 1.5 miles out, according to the Food Standards Agency’s register. A WFTT or DTT reading tells each of those kitchens whether its grease is staying under the 200-micron mean. Environmental health officers from North Hertfordshire council inspect food businesses in Pottersheath. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Our report lists what was cleaned and when, which is useful to have ready. Hertfordshire Fire and Rescue Service covers Pottersheath. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
Church and community hall kitchens, near Church of St Michael and All Angels or anywhere around Pottersheath, are easy to forget, but their extracts collect grease like any other. If you run catering at a healthcare site, such as a hospital like Queen Elizabeth II Hospital about 4.7 miles south, the extract may need cleaning more often than a part-time kitchen.
Pottersheath is about 4 miles north of Welwyn Garden City, in Hertfordshire. If you need TR19 inspection in Pottersheath, please give us a ring on 0345 646 2711, or send details by email for a fixed quote. We work across South East England and London, Pottersheath included. Across Hertfordshire, we cover 381 places, Pottersheath among them. For sites nearby, see our London page, about 25 miles away.
Every address in AL6 is covered for TR19 inspection, from the main roads to the quietest streets. You’ll find streets such as Pottersheath Road and Fallow End, all of which we cover for TR19 inspection. Neighbouring places we cover for TR19 inspection include Rableyheath (1 mile north), Nup End Green (1 mile north-west), Codicote (1 mile west), Old Knebworth (1 mile north) and Driver's End (1 mile north-west). Within a short drive, we also cover Watford (15 miles south-west), Hemel Hempstead (13 miles south-west), Stevenage (4 miles north), St Albans (9 miles south-west), Bishop's Stortford (15 miles east) and Welwyn Garden City (4 miles south).
What’s near Pottersheath
Around Pottersheath, our work takes us to kitchens and buildings near Monk's Walk School, Robin Hood And Little John Public House and Danesbury Park and the streets around them. The nearest railway station is Knebworth station, roughly 1.3 miles north-east of the centre. A little further out are Howard Centre (3.4 miles south) and Datchworth Museum (1.9 miles east). Not far away are Mardley Heath.
In-house cleaning or a specialist?
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
Nearby places to Pottersheath
What else we do in Pottersheath
For landlords and multi-site operators
Facilities teams in offices, schools and healthcare sites book us too in Pottersheath and across Hertfordshire. Work can be phased by floor, building or site around the people who use them.
Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept on a regular cycle.
How we price TR19 inspection
The diagnosis comes before the price. We look at:
- When the work can happen, such as evenings, overnight or weekends
- Where the site is and how we reach it
- One-off work versus a regular cycle
- Access, including roofs, risers and ceiling voids
We don’t list prices on the website, because each job is priced on what it involves. For a fixed quote, ring 0345 646 2711 or use the quote form, and we will explain what it covers.
Asking for a quote
To speed up the quote, please include:
- Your last certificate, test record or report
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Your opening hours and when the area is out of use
- Photos showing the whole system and its surroundings
For a fixed quote, ring 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. We normally come back within one working day.
Common questions in Pottersheath
Can the work in Pottersheath be done at night or at weekends?
Yes, we can come after you close and finish before you open. The site is handed back ready to open. Let us know the hours you’re closed and we will book within them.
Can school kitchens in Pottersheath be cleaned in the holidays?
Yes, holiday work suits schools best. The FSA’s register shows about 6 schools and colleges with food registrations within roughly a mile and a half of Pottersheath. Send us your term dates when you ring 0345 646 2711 or use the quote form, and we will fit the work in.
How far ahead should we book?
Earlier is better, especially for out-of-hours work. We normally quote within one working day, and there’s a 24/7 line for emergencies.
Which accreditations do you hold?
Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
Do you work in Pottersheath?
Yes. Our area takes in London and the counties of South East England, and that includes Pottersheath.
What grease levels does TR19 allow?
The TR19® Grease figures are a mean of 200 microns or less between cleans, and immediate spot cleaning wherever a reading hits 500 microns. We show your readings against those figures.
Which kinds of sites do you work on?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, as well as food production and leisure sites.
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.
Between visits
So the system stays in good health:
- Diary the next grease test and clean
- Never cook with filters missing
- Wipe the canopy surfaces regularly
- Have the latest report ready for insurance renewals
Each report suggests the next clean and the next test, from the measured grease and the kitchen’s hours.
Clean, correctly fitted filters stop more grease reaching the duct. Gaps around filters let grease get past them.