Hertfordshire · TR19 inspections and grease testing
Knebworth TR19 inspection
TR19 inspection for Knebworth and the surrounding area: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Surveys needed before quoting a full clean
- Kitchens whose menu or hours have changed
- Kitchen extract systems with no recent grease readings
What TR19 inspection looks like in Knebworth
The FSA’s data shows about 14 pubs and bars registered within about 1.5 miles of central Knebworth. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. In Knebworth, food businesses are inspected by environmental health officers from North Hertfordshire council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Before-and-after pictures from each clean are a simple way to show the extract is in hand. The fire and rescue service for Knebworth is Hertfordshire 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.
A hospital like Lister Hospital, about 4.2 miles north, is the kind of site where a kitchen may cook for patients, staff and visitors all day. For schools such as Knebworth Primary and Nursery School, kitchen extract cleaning is usually booked for the holidays, when the canteen is closed.
Knebworth is about 3 miles south of Stevenage, in Hertfordshire. Across the SG3 area, we cover TR19 inspection for commercial sites. Our area takes in 381 places across Hertfordshire, from busy centres to quieter spots. You can also see our page for London, roughly 26 miles from Knebworth.
All of SG3 is within our area for TR19 inspection, from busy streets to back roads. You will find streets such as London Road, Deanscroft and Lytton Fields, all of which we cover for TR19 inspection. Other places close to Knebworth include Woolmer Green (1 mile south), Bragbury End (1 mile north-east), Oaklands (2 miles south), Datchworth (2 miles south-east) and Shephall (2 miles north). Within a short drive, we also cover Hemel Hempstead (14 miles south-west), Stevenage (3 miles north), St Albans (10 miles south-west), Bishop's Stortford (15 miles east), Welwyn Garden City (5 miles south) and Harpenden (8 miles south-west).
Around Knebworth
In Knebworth, that means kitchens and buildings near Barnwell School and Knebworth Park and the streets around them. There’s a railway station in Knebworth itself: Knebworth station. Nearby you’ll also find Benington Castle (3.6 miles north-east) and Datchworth Museum (1.7 miles south-east). The countryside around Knebworth includes Mardley Heath.
TR19 inspection in Knebworth, done properly
Many insurers ask for proof that kitchen extract systems are cleaned and inspected to TR19®. Missing records can lead to a claim being reduced or refused. Our TR19 audits give sites in Knebworth and across Hertfordshire a clear record of the system’s condition. If you’re dealing with parts of the system left out of past cleans and cleaning intervals that may not suit the kitchen, we can help, from insurer audits, post-clean checks and pre-clean surveys onwards.
Size doesn’t change the work: a kitchen in a place like Knebworth gets the whole system cleaned, canopy to discharge. We plan the visit around your hours, with the journey sorted in advance.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we are fully insured. We are also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we’ve been trading since 2009.
- Place
- Knebworth (SG3)
- Region
- Hertfordshire
- Reporting
- Certificate and photo report
- Quote
- A fixed quote up front
- Hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Landlords, agents and facilities managers
For anyone managing more than one site, we can schedule visits across all of them on one quote. Each site gets its own report and pictures, so records stay tidy.
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.
When to call us in Knebworth
Menus, opening hours and cooking styles change over time, and more frying or longer hours mean more grease. The old cleaning schedule may not match the kitchen any more.
These are the problems we see most often:
- Surveys needed before quoting a full clean
- Confirming a clean reached the whole system
- Systems cleaned on a calendar with no measurements
- Sites with gaps in their extract records
If you run a café or takeaway near Knebworth station, early starts and late finishes leave little time to clean, so overnight extract cleaning suits.
What your quote should include
- What’s included in the scope, part by part
- Which accreditations they hold, and whether you can check them
- What insurance they carry
- What records you will receive afterwards
Knebworth questions
Do you cover smaller places like Knebworth?
Yes, Knebworth is part of our area, however small the site. The journey is planned ahead, so a few details about the route help.
Can you come to Knebworth after we close?
Yes, evening, overnight and weekend work is normal for us. It means the site in Knebworth keeps running as normal. Your opening times are the first thing we ask for.
How often should a kitchen extract be inspected?
Often enough to know the mean stays under 200 microns between cleans. The readings themselves tell you if the interval needs to change.
What do you need from me for a quote?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and the last report help too. Then give us a ring on 0345 646 2711 or email us.
What if parts of the system can’t be reached?
We never leave them off the paperwork. The report says which parts couldn’t be reached and why, along with a quote to put access in.
What happens on a pre-clean survey?
It’s a look at the whole extract before it’s cleaned, with readings and pictures. The survey can be done from photos and details or on site, as suits the job.
Is TR19 a legal requirement?
No. TR19® is not law; it’s BESA’s specification. The legal duty comes from the Regulatory Reform (Fire Safety) Order 2005, which requires the responsible person to reduce fire risk, and TR19® is what insurers and fire officers look to.
Can you price the work without visiting?
Yes, where the photos show enough. If not, a site survey comes first, then a fixed quote.
What your team can do, and what needs us
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, alongside our reports.
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’s where we come in.
Keeping the system healthy
Here’s the after-treatment advice, in brief:
- Mention new equipment or longer hours at the next test
- File every inspection report with your certificates
- Keep canopy edges and gutters wiped down
- Report grease dripping from the canopy
After post-clean verification, file the results with the cleaning certificate. Together they show the system was cleaned and checked.
Keep all TR19 records together so the history is easy to show.
What the work involves, part by part
Extract fan and discharge
We look at where the extract discharges outside, as grease can build up there too.
Canopy and plenum
We look over the canopy, inside and out, and note where grease has gathered.
What happens on the day
Every visit runs to the same pattern: protect the area, isolate whatever needs isolating, carry out the TR19 inspection, tidy up and leave you the report. On site, the work takes an hour or two for a single kitchen, longer for a large or complex system. In a place like Knebworth, we fit the visit around your hours.
- First we look at the system’s cleaning history, if there is one.
- We follow the extract from canopy to discharge.
- We note where access panels are and where more are needed.
- Grease readings are taken and photos recorded.
- We report back with readings and a fixed quote.
Before we arrive
- Name a contact who can let us in at the agreed time
- Dig out any earlier paperwork for the system
- Tell us about site rules, permits or sign-in
Get a fixed quote
Want a quote for TR19 inspection? Please call 0345 646 2711 or use the quote form and tell us about the site. We’ll talk you through the work and give you a fixed quote before anything is booked.
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Why deal with it now?
After an incident, an insurer can ask to see proof of TR19 cleaning and inspection. Without them, a claim can be reduced or refused. An up-to-date inspection report is a good place to start. Light use slows the build-up but doesn’t stop it.
Combining work into one visit or one programme can make for a more efficient booking. Tell us about everything you’d like looked at, and you will get one fixed quote.
Why us?
- One number for every site across the South East and London
- A fixed price before any work starts
- Trading since 2009
- Fully insured