Hertfordshire · TR19 inspections and grease testing

Old Knebworth TR19 inspection

TR19 inspection in Old Knebworth from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.

  • Pre-clean surveys before a first TR19 clean
  • Confirming a clean reached the whole system
  • Ductwork where grease may be over the TR19 limits

Need TR19 inspection in Old Knebworth?

What we are called out for in Old Knebworth

When a site in Old Knebworth changes owner or cleaning contractor, the records do not always follow. Without them, nobody knows how much grease is in the system or when it was last cleaned.

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

  • Uncertainty over how often to clean
  • Insurers asking for TR19 evidence
  • Surveys needed before quoting a full clean
  • Missing access panels found on survey

A hospital like Lister Hospital, about 3.7 miles north, is the kind of site where a kitchen may cook for patients, staff and visitors all day.

What to look for in a quote

  • Whether they recommend a next date
  • If the quote is a fixed price or an estimate
  • What happens if part of the system can’t be accessed
  • Whether the whole system is included, or only the parts that are easy to reach

How to choose an extract cleaning contractor

About our TR19 inspection in Old Knebworth

A pre-clean survey is the diagnosis, and the clean is the treatment. Readings, photos and notes on access are gathered from end to end, so the quote and the clean fit the real system. Typical jobs include parts of the system left out of past cleans and insurance renewals needing proof of TR19 cleaning, on pre-clean surveys, post-clean checks and insurer audits.

In a small place like Old Knebworth, kitchens are often in older or extended buildings, with long single-storey duct runs, and those horizontal sections are where grease settles. Access, parking and timings are agreed before the day.

We have been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.

Extract duct interior shown dirty and then cleaned back to bare metal
Where
Old Knebworth (SG3)
Region
Hertfordshire
Records
TR19® certificate and photo report
Quotes
Fixed quote, usually within a working day
Working hours
Overnight and weekend work, 24/7 emergency callout
Telephone
0345 646 2711
Reviewed
30 October 2026

Grease, kitchens and Old Knebworth

The FSA’s food hygiene register shows about 17 restaurants, cafés and works canteens and about 11 takeaways within about 1.5 miles of central Old Knebworth. Each kitchen extract among them can be measured for grease to set the right cleaning interval. Old Knebworth sits within the area of Hertfordshire Fire and Rescue Service. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. Kitchens in Old Knebworth get their food hygiene inspections from North Hertfordshire council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. A dated certificate in the maintenance file answers the question before it’s asked.

School kitchens, at schools like Barnwell School for example, are typically cleaned in the holidays so no lunches are lost. Knebworth House, about 0.2 miles north-west, is one of the historic houses near Old Knebworth; if you run event catering at a venue like that, cleans can be booked between functions.

Old Knebworth is about 3 miles south-west of Stevenage, in Hertfordshire. Sites in Old Knebworth get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with photos. Old Knebworth is one of 381 towns, villages and districts in Hertfordshire we cover for TR19 inspection. Our London page covers sites nearby (26 miles or so).

Our technicians cover all of the SG3 postcode area for TR19 inspection and the roads nearby. We cover sites on Old Knebworth Lane and Park Lane and nearby roads. Other places close to Old Knebworth include Nup End Green (1 mile south-west), Driver's End (1 mile south-west), Rableyheath (1 mile south), Pottersheath (1 mile south) and Langley (2 miles north-west). Within a short drive, we also cover Hemel Hempstead (13 miles south-west), Stevenage (3 miles north-east), St Albans (10 miles south-west), Welwyn Garden City (5 miles south), Harpenden (7 miles south-west) and Hitchin (6 miles north-west).

Local landmarks in Old Knebworth

We work in commercial kitchens and buildings around Knebworth Park and Robin Hood And Little John Public House, among other places. The nearest railway station is Knebworth station, about 1 mile east. A little further out are Lister Hospital (3.7 miles north) and Stevenage Museum (2.2 miles north). Not far away are Mardley Heath.

Map of Old Knebworth © OpenStreetMap contributors

Looking after it afterwards

After the visit, a few habits help the work last:

  • Keep grease filters clean and fitted properly
  • Flag changes in how much frying the kitchen does
  • Keep canopy edges and gutters wiped down
  • Send TR19 audit reports to your insurer on request

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

When cooking hours or the menu change, check the interval still fits. Fresh readings show whether it needs to change.

What the work involves, part by part

Schools, hospitals and care homes

Inspections are planned around mealtimes and holidays so meals are not affected.

Vertical risers

In buildings with several floors, the riser may pass through other tenants’ space, so access is planned in advance.

Your questions about TR19 inspection in Old Knebworth

Who is the fire and rescue service for Old Knebworth?

Old Knebworth is in the area of 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.

Do you cover smaller places like Old Knebworth?

Yes, Old Knebworth is part of our area, however small the site. The journey is planned ahead, so a few details about the route help.

How much does TR19 inspection cost in Old Knebworth?

We do not publish prices, because the cost depends on the job: the size of the system, its condition, access and when we can work. We fix the price before any work starts.

What happens if you cannot reach some of it?

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.

Can you set up regular visits?

Yes. Scheduled maintenance plans are part of what we do, set at the interval the system needs. The report from each visit recommends the next date.

Can you quote from photos?

Yes, if we can see what we need. Otherwise, we book a survey at a time that suits the site, then a fixed quote.

How much notice should we give?

Book as early as you can for planned work, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.

Which sectors do you work in?

Any site with a kitchen or a ventilation system to look after, from a single café to a large school. We work with hotels, schools, care homes, offices, retail and leisure sites.

What happens if it’s left?

Do not 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. Planning a trip to Old Knebworth ahead is easier for everyone than a rushed one.

Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, which can make the next visit longer. If you are not sure what’s needed, ring 0345 646 2711 or drop us a line and we’ll give you an honest view and a fixed quote.

Why book with us

  • One number for every site across the South East and London
  • Every job surveyed first
  • Full insurance on every job
  • Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease

Take a look at how cleaning jobs are priced or how to check a contractor.

What affects the cost of TR19 inspection

Sites vary more than people expect. The main factors:

  • How easy every part is to reach
  • Whether it’s a one-off visit or part of a schedule
  • Any permits to work or inductions
  • When the work can happen, such as evenings, overnight or weekends

Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered and we’ll price it together.

What to send for a quote

What to send for a quote:

  • Any access panels or hatches you can see
  • The postcode and the type of business
  • Any previous report or certificate
  • Problems your staff have spotted

For TR19 inspection in Old Knebworth, ring 0345 646 2711 or use the quote form. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. We usually send a fixed quote within one working day.

Multi-site and managed buildings

We also work for facilities teams across offices, schools and healthcare in Old Knebworth and across Hertfordshire. Work can be phased by floor, building or site to keep disruption down.

The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.

How the visit works

A visit follows the same order every time: sheeting and protection first, isolate whatever needs isolating, carry out the TR19 inspection, tidy up and hand over the paperwork. The visit itself takes a couple of hours for a typical kitchen extract system. In a small place like Old Knebworth, the journey is planned ahead and the visit arranged around the site’s hours.

  1. We go through any past certificates and reports.
  2. The layout is traced from the canopy to the discharge.
  3. We note where access panels are and where more are needed.
  4. We measure the grease and photograph each point.
  5. You get a report and a fixed quote for the clean.

Preparing for the visit

  • Let us know about parking and loading
  • Agree a time when the area can be out of use
  • Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas

Getting a quote

Some systems can be priced from photos; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.

Ask for a quote

Related advice

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