Hertfordshire · TR19 inspections and grease testing
Harmer Green TR19 inspection
TR19 inspection for Harmer Green, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Kitchens whose menu or hours have changed
- An insurer’s request for a TR19 audit
- Heavy grease suspected in the plenum or ducts
Grease, kitchens and Harmer Green
The Food Standards Agency lists about 15 pubs and bars as registered food businesses within 1.5 miles or so of the middle of Harmer Green. A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. Harmer Green is covered by 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. It’s East Hertfordshire council that sends environmental health officers to food businesses in Harmer Green. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Our report lists what was cleaned and when, which is useful to have ready.
Where a hall near Digswell Village Church, or anywhere in Harmer Green, hosts lunch clubs or events, its extract gathers grease just as a café’s does. If you cook for passing trade around Welwyn North station, the extract can be cleaned between your last and first customer. Bursars and site managers at schools such as Oaklands Primary School tend to book extract cleaning for when the kitchen is empty.
Harmer Green is about 2 miles north of Welwyn Garden City, in Hertfordshire. If you need TR19 inspection in Harmer Green, please give us a ring on 0345 646 2711 or drop us a line for a fixed quote. We work across South East England and London, Harmer Green included. Our Hertfordshire coverage runs to 381 places, and Harmer Green is one of them. London is in our area too, about 23 miles from Harmer Green.
TR19 inspection in AL6 follows the same survey, fixed quote and written report as everywhere else we cover. Other places close to Harmer Green include Burnham Green (1 mile east), Tewin Wood (1 mile east), Oaklands (1 mile north-west), Bull's Green (1 mile north-east) and Digswell (1 mile south-west). Within a short drive, we also cover Watford (15 miles south-west), Hemel Hempstead (13 miles south-west), Stevenage (5 miles north), St Albans (8 miles south-west), Bishop's Stortford (15 miles east) and Harpenden (7 miles west).
What’s near Harmer Green
We work in commercial kitchens and buildings around Danesbury Park, Monk's Walk School and The White Horse Public House, among other places. For rail, the closest station is Welwyn North station, roughly 0.8 miles south-west. Nearby you will also find Hertford Castle (4.9 miles south-east) and Queen Elizabeth II Hospital (3.4 miles south). Not far away are Tewin Orchard and Hopkyns Wood.
About our TR19 inspection in Harmer Green
A fixed schedule does not always match how a kitchen really cooks. In a busy kitchen, grease can build faster than the minimum intervals allow for, which is why measurement matters. Our readings give your risk assessment real numbers to work from. The work covers deposit thickness tests, pre-clean surveys and insurer audits, and common reasons people get in touch are kitchens whose menu or hours have changed and sites with gaps in their extract records.
For a kitchen in or near Harmer Green, the visit is planned around opening hours and the journey, 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. You get a written report with photos after each visit, listing what was done, anything we couldn’t reach and when the next visit is due. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Location
- Harmer Green (AL6)
- Wider area
- Hertfordshire
- Reporting
- Certificate plus before-and-after pictures
- Quotes
- A fixed quote up front
- Hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Keeping the system healthy
Here’s the after-treatment advice, in brief:
- Send TR19 audit reports to your insurer on request
- Tell us if menus or opening hours change
- Never cook with filters missing
- File every inspection report with your certificates
Readings of 500 microns or more are highlighted as needing immediate spot cleaning, and we can quote to do it.
Keep all TR19 records together so the history is easy to show.
For landlords and multi-site operators
Facilities teams in offices, schools and healthcare sites book us too across Hertfordshire. Larger estates can be phased building by building to keep disruption down.
If you look after several sites, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so records stay tidy.
What the work involves, part by part
Horizontal duct runs
Grease can gather thickly at bends and along long runs, out of sight of the kitchen.
Vertical risers
In buildings with several floors, the riser may pass through other tenants’ space, so we arrange access ahead of time.
The process
Before we leave, we walk the area with whoever is on site. Anything we couldn’t reach or that needs attention is pointed out there and then, and the same goes into the written report. All told, the work takes a couple of hours for a typical kitchen extract system. Somewhere as small as Harmer Green, the date and timings are agreed with you well before the day.
- After the clean, we arrange a time to check the system.
- The same access points are opened up.
- Grease readings are taken again at set points.
- We photograph each area to record how it was left.
- We report the findings and flag any areas that need more work.
Preparing for the visit
- Dig out any earlier paperwork for the system
- Plan for cooking equipment or plant to be off before we arrive
- Mention any locked doors, roof access or ceiling voids
Get a fixed quote
To get a fixed quote, phone us on 0345 646 2711, or email photos with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. We normally come back within one working day.
Advice
What staff can safely do
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.
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. That is our job.
What a clean will not put right
Before booking, it helps to know what’s not included:
- The grease itself, which needs a full or spot clean
- The legal duty, which stays with the responsible person
- Parts of the duct nobody can reach yet
If you are not sure, just call us on 0345 646 2711, or send details by email and we will give you a straight answer.
What we work on in Harmer Green
- Deposit thickness tests
- Access surveys
- Wet film thickness tests
- Pre-clean surveys
- Post-clean checks
- Insurer audits
Questions from Harmer Green
Can you get to a site in Harmer Green?
Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.
Who is the fire and rescue service for Harmer Green?
Hertfordshire Fire and Rescue Service is the fire and rescue service for Harmer Green. TR19® is not law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
Can we book visits on a schedule?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.
Do you check other contractors’ cleans?
Post-clean verification is a check after a clean, with fresh grease readings and photos. It can follow our own cleans or another contractor’s.
Is a quote from pictures possible?
Yes, for many jobs. Send wide shots, close-ups of any access panels and anything that worries you, and we usually come back within one working day. Some sites still need a visit, and we will say so.
How do you measure grease in a kitchen extract?
WFTT and DTT are the two methods for measuring grease thickness, in microns. We take readings at set points from canopy to fan.
How do you protect the area?
By covering it before any work starts. The work is kept contained and leave the area clean.
How far ahead should we book?
Earlier is better, especially for out-of-hours work. Quotes typically come back within one working day, and emergencies are covered by our 24/7 line.
Places near Harmer Green
Other services in Harmer Green
What happens if it’s left?
Don’t wait for an EHO visit or insurance renewal to find gaps in your extract records. A recent inspection report means you are ready when asked. Planning a trip to Harmer Green ahead is easier for everyone than a rushed one.
You won’t find a price list here, because the cost depends on the site in front of us. For a fixed quote, phone us on 0345 646 2711 or use the quote form, and we will talk you through it.
What you get with us
- One number for every site across the South East and London
- Accredited under CHAS and SafeContractor, with ISO 9001
- In business since 2009
- A fixed price before any work starts
Read our cost guide and our accreditations.