Hertfordshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Widford, Hertfordshire
One call covers TR19 inspections and grease testing in Widford, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Heavy grease suspected in the plenum or ducts
- An insurer’s request for a TR19 audit
- Parts of the system left out of past cleans
Different parts, different methods
Extract fan and discharge
The extract fan and its housing collect grease too. We check and test them as part of the inspection.
Horizontal duct runs
Bends and long runs can hold heavy deposits, out of sight of the kitchen.
How we handle TR19 inspection in Widford
Grease thickness testing tells you how much grease is sitting in the canopy, ducts and fan. Readings are taken at set points using the Wet Film Thickness Test (WFTT) or the Deposit Thickness Test (DTT). The results show whether the system needs cleaning and how soon. If you’re dealing with ductwork where grease may be over the TR19 limits and checking the result of a recent clean, we can help, from insurer audits, pre-clean surveys and wet film thickness tests onwards.
For a kitchen in or near Widford, the visit is planned around opening hours and the journey, 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.
Each visit ends with a written report and pictures, so there’s a dated record of the work. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Location
- Widford (SG12)
- Wider area
- Hertfordshire
- Records
- Certificate and photo report
- Quote
- A fixed quote up front
- Working hours
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026

Grease, kitchens and Widford
According to Food Standards Agency records, there are about 4 pubs and bars within about 1.5 miles of central Widford. Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. Widford is covered by Hertfordshire Fire and Rescue Service. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel. It’s East Hertfordshire council that sends environmental health officers to food businesses in Widford. Extraction counts as kitchen equipment, so its condition can come up on the day. A dated certificate in the maintenance file answers the question before it’s asked.
If you run catering at a historic house or estate in the area (Much Hadham Palace is about 2.6 miles north), event kitchens in older buildings often have awkward duct runs that need planning. Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Princess Alexandra Hospital is the nearest hospital to Widford, about 3.7 miles south. Volunteers running a hall kitchen near Parish Church of St John the Baptist, or anywhere in Widford, may not know when the extract was last cleaned, and a grease test settles it.
Widford is about 4 miles east of Ware, in Hertfordshire. Every kind of commercial site in Widford, TR19 inspection is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Widford is one of 381 places in Hertfordshire we cover for commercial clients. You can also see our page for Chelmsford, roughly 19 miles from Widford.
Our technicians cover all of SG12 for TR19 inspection and the roads nearby. TR19 inspection is available to premises on High Street, Bell Lane and Priory Farm Yard and the roads around them. Nearby, we also carry out TR19 inspection in Nether Street (1 mile north-east), Hunsdon (1 mile south), Hunsdonbury (1 mile south), Wareside (1 mile west) and Babbs Green (2 miles west). Further out, we also cover Stevenage (12 miles north-west), Bishop's Stortford (5 miles north-east), Welwyn Garden City (11 miles west), Hoddesdon (6 miles south-west), Cheshunt (9 miles south-west) and Hatfield (13 miles west).
What’s near Widford
Typical jobs here are in premises near The Bell Inn On The Corner Of Bell Lane. The nearest railway station is Harlow Town station, roughly 3.2 miles south-east. Nearby you’ll also find Princess Alexandra Hospital (3.7 miles south) and Harlow Mill (3.7 miles south-east). For a walk, there’s Hunsdon Mead.
Managing agents and facilities teams in Widford
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.
Keeping records across a portfolio is half the battle. Each visit produces a dated report with photos, ready to show insurers, fire officers or EHOs.
What TR19 inspection can’t fix
An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:
- Removing the grease, which is a separate clean
- Mechanical faults in the extract
- Hidden runs that need access panels first
If in doubt, phone us on 0345 646 2711 or send us an email and we will say what we think.
What the work covers
- Wet film thickness tests
- Pre-clean surveys
- Deposit thickness tests
- Insurer audits
- Access surveys
- Post-clean checks
What we do, step by step
We work around your opening hours, not the other way round. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. Once we are in, the area is sheeted and anything that has to be off is turned off and cooled, and the work takes an hour or two for a single kitchen, longer for a large or complex system. A few pictures of the system help us make the most of a visit to a place like Widford.
- The visit is arranged for when the kitchen is not busy.
- Every part of the system is examined, end to end.
- Grease readings are taken at set points using WFTT or DTT.
- Photos are taken at each point, and access gaps noted.
- We send a report setting out the readings, pictures and next steps.
Preparing for the visit
- Have your last certificate or report to hand
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Name a contact who can let us in at the agreed time
Getting a quote
Need a price for TR19 inspection? Please give us a ring on 0345 646 2711, or send details by email with a few details about the site. We will talk you through the work and send you a fixed quote before anything is booked.
Related advice
FAQs for Widford
Which fire and rescue service is responsible for Widford?
It’s Hertfordshire Fire and Rescue Service, which covers Widford. Records of extract cleaning are a sensible thing to have ready if a fire safety officer carries out an audit.
Can you work in Widford outside opening hours?
Yes, nights and weekends are routine for us. The site is handed back ready to open. Let us know the hours you’re closed and we will book within them.
How often should a kitchen extract be inspected?
It depends on how heavily the kitchen cooks. BESA sets minimum cleaning intervals of 3, 6 or 12 months by daily use, and grease readings help set the real interval.
How much does TR19 inspection cost?
Every site is different, so each gets its own fixed quote. To get one, give us a ring on 0345 646 2711 or use the quote form and tell us about the site and its opening hours.
Is TR19 cleaning the law?
No. TR19® is BESA’s specification and the industry benchmark, not legislation. The legal duty comes from the Regulatory Reform (Fire Safety) Order 2005, which requires the responsible person to reduce fire risk, and insurers, fire officers and EHOs look to TR19® as the benchmark.
What about areas you cannot get to?
They’re marked on the report. In ductwork, new access panels are often the answer, which we can install.
Can you verify a clean after it’s been done?
We visit after a clean, take readings at set points and photograph the system. Any areas that weren’t cleaned properly are flagged.
Do you offer emergency callouts?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line, and we’ll advise on what to do next.
What staff can safely do
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.
Keeping the system healthy
So the system stays in good health:
- Don’t box in or cover duct access panels
- Keep grease filters clean and fitted properly
- Look out for grease drips round the canopy edge
- Keep TR19 certificates, readings and reports together
The audit report is set out to pass straight to your insurer or broker, with readings, pictures and any areas not accessible.
Revisit the cleaning interval whenever the menu or hours change. Fresh readings show whether it needs to change.
Nearby places to Widford
More services for Widford
What happens if it’s left?
Without readings, you’re guessing when to clean. If grease reaches 500 microns anywhere, TR19® Grease calls for immediate spot cleaning, and you can only act on that if you’ve measured it. If the system at a site near Widford fails, there may be nowhere nearby to move to.
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, which can make the next visit longer. If you are not sure what’s needed, ring 0345 646 2711, or email photos and we will give you an honest view and a fixed quote.
Why choose Duct Doctor in Widford
- In business since 2009
- Out-of-hours work and a 24/7 emergency line
- CHAS and SafeContractor accredited, with ISO 9001
- Fully insured
Take a look at what affects the cost and how to check a contractor.