Hertfordshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Ley Green, Hertfordshire
One call covers TR19 inspection in Ley Green, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Missing access panels found on survey
- Checking the result of a recent clean
- Missing TR19 certificates or history
TR19 inspection for kitchens and businesses in Ley Green
TR19® Grease says grease should not exceed a mean of 200 microns between cleans, and 500 microns or more at any point needs immediate spot cleaning. Grease testing shows which side of those lines you are on. The work covers pre-clean surveys, wet film thickness tests and access surveys, and the jobs we see most are checking the result of a recent clean and an insurer’s request for a TR19 audit.
Somewhere as small as Ley Green, commercial kitchens are few: perhaps a pub, a school or care home kitchen, or a hall used for events. Every one of them still needs its extract kept clear of grease.
The sign-off is always in writing: a written report, dated and illustrated with photos, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. It shows what was done and what, if anything, couldn’t be reached.
- Location
- Ley Green (SG4)
- Region
- Hertfordshire
- Reporting
- Certificate plus before-and-after photos
- Quotes
- A fixed price before any work starts
- Hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
In-house cleaning or a specialist?
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
Staff cleaning doesn’t replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
For landlords and multi-site operators
Records are where multi-site compliance often slips. Every visit ends with a dated report and photos, so you can show an insurer or inspector what was done at each site.
When the building owner and the occupier are different, the lease normally sets out who maintains what. We can quote either party, and the report can go to both.
Why it’s worth doing now in Ley Green
Without readings, you’re guessing when to clean. Any reading of 500 microns or more needs immediate spot cleaning under TR19® Grease, which you won’t know without measuring. Our emergency line runs 24/7, but a planned visit to Ley Green is calmer for everyone.
Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
Why choose Duct Doctor in Ley Green
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Fixed quotes from a survey or pictures
- One number for every site across the South East and London
- CHAS, SafeContractor and ISO 9001
Take a look at our cost guide or how to check a contractor.
When it’s something else
A few issues sit outside what this work can do:
- Sections with no access, until panels are fitted
- Ductwork that was designed or installed badly
- Mechanical faults in the extract
If you are not sure, just phone us on 0345 646 2711 or use the quote form and we’ll give you a straight answer before booking.
Where we work
- Pre-clean surveys
- Wet film thickness tests
- Insurer audits
- Access surveys
- Post-clean checks
- Deposit thickness tests
Places near Ley Green
Also in Ley Green
Aftercare tips
Good habits slow the build-up between visits. A few tips:
- Don’t box in or cover duct access panels
- File every inspection report with your certificates
- Have the latest report ready for insurance renewals
- Keep canopy edges and gutters wiped down
Any access problems we found are listed with a suggested fix. Fitting them before the next clean means the whole system gets done.
Regular grease readings keep the cleaning interval honest. It spots changes in how fast grease builds.
What affects the cost of TR19 inspection
Every site gets its own quote. This is what makes a difference:
- Parking and loading at the site
- The size of the system
- How easy every part is to reach
- The condition we find in the survey
What you pay reflects the actual work. That is why we survey first, from photos or on site, and the price is agreed before any work starts.
What to send for a quote
What to send for a quote:
- Any symptoms, from odd noises to smells or leaks
- Your opening hours and when the area is out of use
- Photos showing the whole system and its surroundings
- How we’d reach plant on a roof or in a plant room
Want a quote for TR19 inspection? Please ring 0345 646 2711 or use the quote form with a few details about the site. We will explain what we’d do and send a fixed quote before you commit to anything.
How it works
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Afterwards, the area is left tidy and the written report follows. Pictures of the system and its access let us plan the work in Ley Green before we set off.
- After the clean, we arrange a time to check the system.
- We open the access points used on the clean.
- Grease readings are taken again at set points.
- Photos are taken to show the condition after the clean.
- The results are reported, with anything missed flagged.
Before we arrive
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Find the previous report, if there is one
- Mention any sign-in, permit or induction we need
Get a fixed quote
To get a fixed quote, ring 0345 646 2711, or email photos and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. You’ll typically have a quote within one working day.
Advice
Common questions in Ley Green
Can you work in Ley Green outside opening hours?
Yes. We work evenings, overnight and at weekends. That way a site in Ley Green doesn’t have to lose a day’s trading. Just give us a ring on 0345 646 2711, or email photos with your opening times and we will plan around them.
Who would carry out a food hygiene inspection at a kitchen in Ley Green?
The local authority for Ley Green is North Hertfordshire council, and its environmental health team does the inspecting. It helps to keep the extract cleaning records with your food safety paperwork, so they’re ready if asked for.
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, and we can quote to improve the access.
How much notice should we give?
The more notice, the better, particularly for night and weekend visits. Quotes typically come back within one working day, and emergencies are covered by our 24/7 line.
Can you inspect our extract for our insurance company?
Yes, for kitchens across the South East and London. Tell us what your insurer has asked for and we will set the report out to match.
What happens on a pre-clean survey?
We survey, measure and photograph the system first. We can work from pictures and details, or visit, as suits the job.
What do you do to protect the area?
Floors and surfaces near the work are sheeted before work begins, and anything we remove is contained. At the end, the area is cleaned down.
Which sectors do you work in?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.
Grease, kitchens and Ley Green
The FSA’s data shows about 3 bars, pubs and nightclubs registered within about 1.5 miles of central Ley Green. A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. Ley Green 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. Kitchens in Ley Green get their food hygiene inspections from North Hertfordshire council. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Keeping each certificate and photo report on file helps show the extract is looked after.
If your kitchen is in a listed or historic building, like the houses around Ley Green (Knebworth House is about 4.9 miles south-east), fitting access panels needs care. Where a hall near Church of St Mary, or anywhere in Ley Green, hosts lunch clubs or events, its extract gathers grease just as a café’s does. Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Lister Hospital is the nearest hospital to Ley Green, about 4.5 miles east.
Ley Green is about 4 miles south-west of Hitchin, in Hertfordshire. If you need TR19 inspection in Ley Green, please ring 0345 646 2711 or use the quote form for a fixed quote. We work across South East England and London, Ley Green included. Ley Green is one of 381 places in Hertfordshire where we work for commercial clients. Our Milton Keynes page covers sites nearby (21 miles or so).
We work across the SG4 postcode area for TR19 inspection and the streets around it. TR19 inspection is available to premises on Plough Lane, Whitehall Road and School Lane and nearby roads. If your site is just outside Ley Green, we cover Great Offley (2 miles north-west), Temple End (2 miles north) and The Flints (2 miles north-west). We also work in nearby towns such as Hemel Hempstead (12 miles south-west), Stevenage (6 miles east), St Albans (11 miles south), Welwyn Garden City (9 miles south-east), Harpenden (6 miles south) and Hitchin (4 miles north-east).
Near you in Ley Green
Ley Green’s nearest station is Hitchin station, roughly 4 miles north-east of the centre. Well-known places in the area include Wymondley Castle (4.3 miles north-east) and Lister Hospital (4.5 miles east). The countryside around Ley Green includes Markham's Hill and Oughtonhead Nature Reserve.