Hertfordshire · TR19 inspections and grease testing

TR19 Inspection in Hertford

TR19 inspections, grease thickness testing, pre-clean surveys and post-clean verification for businesses, landlords and public buildings in Hertford. CHAS, SafeContractor and ISO 9001, and fully insured.

  • Sites with gaps in their extract records
  • Post-clean verification after another contractor’s clean
  • Parts of the system left out of past cleans

TR19 inspection across Hertford

TR19 inspection in Hertford: the local picture

Food Standards Agency data counts about 62 cafés, restaurants and staff canteens and about 20 takeaways within roughly a mile and a half of the centre of Hertford. A WFTT or DTT reading tells each of those kitchens whether its grease is staying under the 200-micron mean. Hertfordshire Fire and Rescue Service covers Hertford. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. It’s East Hertfordshire council that sends environmental health officers to food businesses in Hertford. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Before-and-after photos from each clean are a simple way to show the extract is in hand.

School kitchens, at schools like Mill Mead Primary School for example, are usually cleaned in the holidays so no lunches are lost. Where a hall near Hertford United Reform Church, or anywhere in Hertford, hosts lunch clubs or events, its extract gathers grease just as a café’s does.

Hertford is about 9 miles south-east of Stevenage, in Hertfordshire. For TR19 inspection in and around Hertford, please phone us on 0345 646 2711 or use the quote form for a fixed quote. We work across South East England and London, Hertford included. Hertford is one of 381 towns, villages and districts in Hertfordshire we cover for commercial clients. There’s also a page for London, roughly 21 miles from Hertford.

Work in SG14 and SG13 follows the same survey, fixed quote and written report as everywhere else we cover. If you need TR19 inspection at premises on Salisbury Square, Market Street and Parliament Square or anywhere close by, our technicians can take on the work. Main roads around Hertford include the A10 and A119, so getting to you is simple for evening and night visits. Other places close to Hertford include Horns Mill (1 mile south), Foxholes (1 mile east), Rush Green (2 miles east), Hertford Heath (2 miles south-east) and Little Amwell (2 miles south-east). Larger places within reach include Stevenage (9 miles north-west), St Albans (11 miles west), Bishop's Stortford (11 miles north-east), Welwyn Garden City (5 miles west), Harpenden (12 miles west) and Hitchin (13 miles north-west).

Landmarks near Hertford

Typical jobs here are in premises near The Old Barge pub and Richard Hale School, among other places. Hertford has its own railway station: Hertford East station. Other landmarks nearby include Hertford County Hospital (within half a mile south-west) and Mcmullen & Sons Brewery Museum (under half a mile south-west). The countryside around Hertford includes Willowmead.

Map of Hertford © OpenStreetMap contributors

TR19 inspection for kitchens and businesses in Hertford

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. The work covers insurer audits, pre-clean surveys and access surveys, and common reasons people get in touch are extracts that have never been grease tested and missing TR19 certificates or history.

Most kitchens in a town like Hertford cannot close for a day, so cleans are booked after closing, early in the morning or on a quiet day. By the next service, the kitchen is ready to cook in again.

Duct Doctor has 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.

Where
Hertford (SG14, SG13)
Wider area
Hertfordshire
Paperwork
Certificate and photo report
Quotes
A fixed price before we start
Working hours
Overnight and weekend work, 24/7 emergency callout
Phone
0345 646 2711
Checked
30 October 2026
The Duct Doctor team standing beside their branded white and blue vans

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 will not come clean, it’s best reported rather than tackled in-house. We’ll take a look and give you a fixed quote.

Staff cleaning does not replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.

Aftercare tips

Simple habits between visits make a real difference. We recommend:

  • Never cook with filters missing
  • Flag oily drips near the extract
  • Send TR19 audit reports to your insurer on request
  • Keep access panels clear and unpainted

If any reading is 500 microns or more, the report flags it for immediate spot cleaning, and we can quote to do it.

Keep all TR19 records together so you can produce them quickly.

Common questions in Hertford

Do you clean school canteen extracts around Hertford out of term?

Yes. The holidays are the usual time for school work. Food Standards Agency records list about 22 schools, colleges and universities with registered kitchens within about a mile and a half of Hertford. Booking early in the term gives the best choice of holiday dates.

Who enforces fire safety at workplaces in Hertford?

Hertfordshire Fire and Rescue Service is the fire and rescue service for Hertford. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.

Do you offer emergency callouts?

Yes, 24/7. Our office is open from 8am to 6pm on weekdays, and the emergency line covers the rest.

Do you work in Hertford?

Yes. We cover Hertford and the rest of Hertfordshire, as part of our work across South East England and London. To book, give us a ring on 0345 646 2711, or send details by email.

What happens to the waste?

We take it away at the end of the visit. While we work, it’s kept contained to keep the area clean.

What about areas you cannot get to?

We never leave them off the paperwork. The report says which parts couldn’t be reached and why, and we can quote to improve the access.

Which sectors do you work in?

Any commercial site with kitchens or ventilation, from a single café to a large school. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.

How long does grease testing take?

An inspection takes a morning or less for one kitchen, more where there are several systems. Sites with several canopies take longer, so call us on 0345 646 2711 or use the quote form and we’ll plan it.

Multi-site and managed buildings

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

Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.

What a clean will not put right

Not every problem is solved by TR19 inspection, and we’d rather say so up front. It won’t put right:

  • A faulty or failing extract fan
  • The legal duty, which stays with the responsible person
  • Hidden runs that need access panels first

If you are not sure, just give us a ring on 0345 646 2711, or email photos and we will give you a straight answer.

Where we work

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

What we’re called out for in Hertford

Menus, opening hours and cooking styles change over time, and more frying or longer hours mean more grease. A cleaning interval set years ago may no longer fit.

Look out for these warning signs:

  • Sites with gaps in their extract records
  • Kitchens whose menu or hours have changed
  • Surveys needed before quoting a full clean
  • Post-clean verification after another contractor’s clean

Commuter trade near Hertford East station can mean long cooking hours, and long hours put a kitchen into BESA’s more frequent cleaning bands.

What your quote should include

  • Proof of accreditation you can verify
  • What hours they’ll be on site
  • Whether a survey comes first
  • Whether the price is fixed

Questions to ask before booking

Fixed quotes for TR19 inspection in Hertford

Every site gets its own quote. These are the things that affect it:

  • Whether it’s a one-off visit or part of a schedule
  • What state the system is in
  • How easy every part is to reach
  • The times the site is available

The price reflects the work, not guesswork. That is why every job is surveyed first, and why the quote is fixed before we start.

Helping us quote

When you call or email, these details help:

  • Where the plant sits or the system leaves the building, such as a roof or outside wall
  • The times we could work without disrupting the site
  • A few general shots of the system
  • Your last certificate, test record or report

Want a quote for TR19 inspection? Please ring 0345 646 2711, or send details by email and tell us about the site. We’ll explain what we’d do and send a fixed quote before anything is booked.

How it works

Protection comes first: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. It takes a couple of hours for a typical kitchen extract system, and the area is cleaned down before we leave. Work in Hertford is usually booked after closing, early in the morning or on a closed day.

  1. We agree a time when the kitchen is closed or quiet.
  2. The system is checked from canopy to discharge.
  3. Grease thickness is measured at set points by WFTT or DTT.
  4. We photograph the test points and record any sections we cannot reach.
  5. The findings go into a report with readings, photos and a recommended next clean.

Before we arrive

  • Mention any sign-in, permit or induction we need
  • Tell us the best time to work, such as after service or at a weekend
  • Mention any locked doors, roof access or ceiling voids

Getting a quote

We don’t publish a price list, because every site is different. We look at your system first, from photos or on a visit, then send a fixed quote. To start, give us a ring on 0345 646 2711 or email us.

Get a price

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