Hertfordshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Daw's End, Hertfordshire
Specialist TR19 inspection for Daw's End: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Checking the result of a recent clean
- Kitchens taken over with no cleaning records
- Extracts that have never been grease tested
How we handle TR19 inspection in Daw's End
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 extracts that have never been grease tested and checking the result of a recent clean, we can put it right.
Work in a small place like Daw's End starts with a call to agree access and timings, and the clean covers the whole system, as it would anywhere: canopy to discharge, then a TR19® certificate and a photo report.
Good records are part of the job. Each visit is written up with pictures, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.

- Place
- Daw's End (SG9)
- Region
- Hertfordshire
- Records
- TR19® certificate and photo report
- Quote
- A fixed price before we start
- Working hours
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Aftercare tips
To keep the system working properly between visits:
- Clean or swap grease filters as often as the kitchen needs
- Diary the next grease test and clean
- Tell us if menus or opening hours change
- Share inspection reports with your insurer or broker when asked
Readings of 500 microns or more are highlighted as needing immediate spot cleaning, and we can arrange it.
Revisit the cleaning interval whenever the menu or hours change. A quick grease test answers the question.
Grease, kitchens and Daw's End
In Daw's End, food businesses are inspected by environmental health officers from East Hertfordshire council. Extraction counts as kitchen equipment, so its condition can come up on the day. Keeping each certificate and photo report on file helps show the extract is looked after. Fire safety in Daw's End falls to 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.
Where a hall near Church of St George, or anywhere in Daw's End, hosts lunch clubs or events, its extract gathers grease just as a café’s does. School kitchens, at schools like Anstey First School for example, are typically cleaned in the holidays so no lunches are lost.
Daw's End is in Hertfordshire. For TR19 inspection in and around Daw's End, please phone us on 0345 646 2711 or use the quote form for a fixed quote. Our area covers London and the South East, including Daw's End. Daw's End is one of 381 places in Hertfordshire we cover for TR19 inspection. There’s also a page for Chelmsford, roughly 25 miles from Daw's End.
All of SG9 is covered for TR19 inspection, from the main roads to the quietest streets. Neighbouring places we cover for TR19 inspection include Anstey (1 mile north), Great Hormead (1 mile south), Wyddial (2 miles west), Brent Pelham (2 miles south-east) and Lower Green (2 miles north-east). Within a short drive, we also cover Stevenage (11 miles south-west), Bishop's Stortford (9 miles south-east), Hitchin (13 miles west), Hoddesdon (15 miles south), Hertford (13 miles south-west) and Letchworth (11 miles west).
Landmarks near Daw's End
We work in commercial kitchens and buildings around The Blind Fiddler pub. Other landmarks nearby include Anstey Hales Farm (0.6 miles north-east). Green spaces nearby include Hawkins Wood.
What affects the quote in Daw's End
You will get a fixed price before work begins. It’s based on:
- Site requirements such as sign-in and permits
- The condition of the system
- The scale of the work
- Travel, parking and unloading
We don’t list prices on the website, because each job is priced on what it involves. Call for a fixed quote, and we’ll talk you through it.
What to send for a quote
There’s no need for technical detail. Just send:
- Any access panels or hatches you can see
- A few general shots of the system
- Any previous report or certificate
- Where the plant sits or the system leaves the building, such as a roof or outside wall
Quotes are quick. Send a few details and photos, and we usually reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
When something else is needed
An honest diagnosis matters more to us than a booking, so here’s what TR19 inspection won’t do:
- Hidden runs that need access panels first
- The grease itself, which needs a full or spot clean
- Fan breakdowns, which need a repair visit
If in doubt, ring 0345 646 2711 or drop us a line and we’ll say what we think.
What the work covers
- Pre-clean surveys
- Post-clean checks
- Access surveys
- Wet film thickness tests
- Insurer audits
- Deposit thickness tests
Common questions in Daw's End
Which fire and rescue service is responsible for Daw's End?
Hertfordshire Fire and Rescue Service is the fire and rescue service for Daw's End. 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 work overnight in Daw's End?
Yes, we can come after you close and finish before you open. It means the site in Daw's End keeps running as normal. Let us know the hours you’re closed and we will book within them.
Do you offer maintenance contracts?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, to suit the system and how it’s used.
Which kinds of sites do you work on?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, plus food production and leisure sites.
Can one contract cover all our sites?
Yes. One number covers all your sites in our area, with visits on a regular schedule.
What if parts of the system cannot be reached?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
Is there a survey before the work?
Yes. We always survey first, either from pictures and details you send or on a site visit. A fixed quote follows.
Is TR19 a legal requirement?
No. It’s the benchmark rather than the law. Without TR19 records, an insurance claim can be reduced or refused, so it matters in practice.
The process
There are three stages on the day: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with pictures. The middle part takes longest, which takes a morning or less for one kitchen, more where there are several systems. We agree a date with you, plan the drive to Daw's End and turn up when the site is quiet.
- The visit is arranged for when the kitchen isn’t busy.
- Every part of the system is examined, end to end.
- Grease thickness is measured at set points by WFTT or DTT.
- Each test point and any access problems are photographed.
- We send a report setting out the readings, photos and next steps.
Preparing for the visit
- Make sure someone can let us in and lock up afterwards
- Make sure equipment near the work can be switched off and left to cool
- Find the previous report, if there is one
Get a fixed quote
Some systems can be priced from pictures; 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.
Advice
Managing agents and facilities teams in Daw's End
Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we will send a fixed quote.
We also work for facilities teams across offices, schools and healthcare across Hertfordshire. Larger estates can be phased building by building to keep disruption down.
Places near Daw's End
What else we do in Daw's End
Why it’s worth doing now in Daw's End
Surveying first means the clean goes to plan. Missing access panels, hidden duct runs and awkward fans are found before the cleaners arrive, and the quote reflects the real job. A fault that closes a site in a village like Daw's End affects everyone who depends on it.
What you pay reflects the actual work. That is why we survey first, from pictures or on site, and why the quote is fixed before work begins.
Why choose Duct Doctor in Daw's End
- One contact for all your sites in London and the South East
- Photo reports with every job
- Accredited under CHAS and SafeContractor, with ISO 9001
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
What the work involves, part by part
Vertical risers
Risers carry the extract up through the building. Grease can drain down and pool at the bottom, so the base is a key test point.
Restaurants, pubs and hotels
A kitchen running from breakfast to late service builds grease quickly. Regular testing shows whether the cleaning interval keeps up.