Hertfordshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Hogpits Bottom, Hertfordshire
TR19 inspection for businesses, landlords and public buildings in Hogpits Bottom. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Systems cleaned on a calendar with no measurements
- Post-clean verification after another contractor’s clean
- Parts of the system left out of past cleans
Questions from Hogpits Bottom
Can the work in Hogpits Bottom be done at night or at weekends?
Yes, evening, overnight and weekend work is normal for us. That way a site in Hogpits Bottom doesn’t have to lose a day’s trading. When you call us on 0345 646 2711 or drop us a line, mention when the site is quiet.
Who enforces fire safety at workplaces in Hogpits Bottom?
That is Hertfordshire Fire and Rescue Service. 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.
What is a WFTT or DTT grease test?
Readings are taken using the Wet Film Thickness Test or the Deposit Thickness Test, and set against the TR19® Grease figures.
Why survey before a clean?
We look at the system from canopy to discharge, take grease readings and check access. It lets us plan the clean and give you a fixed quote.
What happens to the waste?
It’s contained and taken away. Grease, debris and waste water are collected as the work goes on rather than letting it spread.
At what point does grease need cleaning?
Two figures matter: a mean of no more than 200 microns between cleans, and 500 microns at any single point, which needs immediate spot cleaning. Our report sets your readings against both.
What’s TR19?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It isn’t legislation, but it’s the standard people check against.
What is post-clean verification?
After a clean, we take new readings and pictures to show how the system was left. It works whoever carried out the clean.
TR19 inspection for kitchens and businesses in Hogpits Bottom
Under TR19® Grease, the mean grease thickness should stay at or below 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. Typical jobs include sites with gaps in their extract records and an insurer’s request for a TR19 audit, on wet film thickness tests, insurer audits and access surveys.
Work in a small place like Hogpits Bottom starts with a call to agree access and timings, and the clean itself is the same full TR19® job as in any town: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.
A written report with pictures follows every visit, so you have a record of what was done and when. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Where
- Hogpits Bottom (HP3)
- Region
- Hertfordshire
- Records
- Certificate and photo report
- Quote
- A fixed price before we start
- Hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
The process
We start by comparing what we find with the survey or your photos. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes a couple of hours for a typical kitchen extract system. Visits to a village like Hogpits Bottom are booked in advance, at a time that suits whoever runs the site.
- Post-clean verification is booked once the clean is done.
- The same access points are opened up.
- We repeat the WFTT or DTT readings.
- Photos are taken to show the condition after the clean.
- We report the findings and flag any areas that need more work.
Preparing for the visit
- Let us know how we reach the system, including roofs, risers and plant rooms
- Make sure equipment near the work can be switched off and left to cool
- Make sure someone can let us in and lock up afterwards
Getting a quote
For TR19 inspection in Hogpits Bottom, phone us on 0345 646 2711 or drop us a line. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. We typically send a fixed quote within one working day.
Advice
Different parts, different methods
Vertical risers
Risers carry the extract up through the building. Grease can run down and collect at the base, so we check there.
Schools, hospitals and care homes
Education kitchens need TR19 inspections like any other. Readings show if the interval is right.
Do you need TR19 inspection in Hogpits Bottom?
Looking at a canopy tells you little about what’s in the duct. A system can look clean at the filters and be heavily coated further in, so readings are the reliable guide.
Look out for any of the following:
- Kitchens taken over with no cleaning records
- Kitchen extract systems with no recent grease readings
- Uncertainty over how often to clean
- Confirming a clean reached the whole system
Historic houses near Hogpits Bottom, such as Chenies Manor House about 2 miles south, are a reminder that older buildings with event kitchens can have long, awkward duct routes.
What to look for in a quote
- Whether the quote is based on a survey or photos
- Whether inaccessible sections are listed on the report
- How they set the interval to the next visit
- Proof of insurance
Leave it or put it right?
Catching heavy deposits early keeps the fix small. Ignored, the layer only gets thicker. With notice, the visit to Hogpits Bottom can be fitted around your bookings and events.
Combining work into one visit or one programme can make for a more efficient booking. Tell us about everything you’d like looked at and we’ll price it together.
Why book with us
- Survey first, then a fixed quote
- A fixed price before any work starts
- Evenings, overnight and weekends, plus 24/7 emergency callout
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Take a look at what affects the cost and our accreditations and certificates.
For landlords and multi-site operators
We work for landlords, managing agents and facilities managers as well as the people running the site. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we are happy to quote for all of it.
Keeping records across a portfolio is half the battle. Every visit ends with a dated report and photos, so you can show an insurer or inspector what was done at each site.
What affects the quote in Hogpits Bottom
Before we fix a price, we need to know a few things. We check:
- Where the site is and how we reach it
- When the work can happen, such as evenings, overnight or weekends
- How big the system is
- One-off work versus a regular cycle
What you pay depends on how big the system is, the condition it’s in and how easy it is to reach. You get a fixed price before we start, so there are no surprises.
Asking for a quote
There’s no need for technical detail. Just send:
- The roof, plant room or outside wall the system runs to
- The site address and the type of premises
- Close-ups of filters, grilles, hatches or access panels
- The paperwork from the last visit, if you have it
For a fixed quote, call 0345 646 2711, or send details by email 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.
Kitchen extracts in Hogpits Bottom
There are about 6 restaurants, cafés and canteens in and around Hogpits Bottom, up to about a mile and a half out, according to the Food Standards Agency’s register. Each kitchen extract among them can be measured for grease to set the right cleaning interval. Food hygiene inspections in Hogpits Bottom are the job of Dacorum council’s environmental health team. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Before-and-after pictures from each clean are a simple way to show the extract is in hand. The fire and rescue service for Hogpits Bottom is 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.
Volunteers running a hall kitchen near Church of St Mary Magdalene (Church of England), or anywhere in Hogpits Bottom, may not know when the extract was last cleaned, and a grease test settles it. Healthcare kitchens cannot easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Hogpits Bottom is Hemel Hempstead Hospital, about 4.2 miles north-east.
Hogpits Bottom is about 4 miles east of Chesham, in Hertfordshire. Wherever you are in the HP3 postcode area, we can take on TR19 inspection. Hogpits Bottom is one of 381 places in Hertfordshire where we work for commercial clients. You can also see our page for London, roughly 23 miles from Hogpits Bottom.
Here we cover the HP3 postcode area for TR19 inspection. We cover sites on Flaunden Lane, Black Robins Lane and Hogpits Bottom and the roads around them. Neighbouring places we cover for TR19 inspection include Bulstrode (1 mile north-east), Tower Hill (1 mile north-east), Bovingdon (1 mile north), Ley Hill (2 miles west) and Botley (2 miles west). Larger places within reach include Watford (6 miles south-east), Hemel Hempstead (5 miles north-east), St Albans (9 miles east), Harpenden (11 miles north-east), Hatfield (13 miles east) and Borehamwood (11 miles east).
Near you in Hogpits Bottom
Locally, jobs take us to businesses close to The Bricklayer Arms Public House and the streets around them. The nearest railway station is Chalfont & Latimer station, about 2.7 miles south-west of the centre. Other landmarks nearby include Amersham Fair Organ Museum (3.3 miles south-west) and Hemel Hempstead Hospital (4.2 miles north-east). For a walk, there’s Sarratt Bottom nature reserve.
Staff cleaning versus specialist work
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.