Hertfordshire · TR19 inspections and grease testing
TR19 inspections in Leavesden
Looking for TR19 inspection in Leavesden? We survey first, send you a fixed quote and work around your opening hours, then sign off with a report and photos.
- Systems that need surveying before cleaning
- Insurers asking for TR19 evidence
- Heavy grease suspected in the plenum or ducts
Kitchen extracts in Leavesden
Food Standards Agency records include about 11 bars, pubs and nightclubs within 1.5 miles or so of the middle of Leavesden. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Hertfordshire Fire and Rescue Service covers Leavesden. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. It’s Three Rivers council that sends environmental health officers to food businesses in Leavesden. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. A TR19® certificate and photo report after each clean gives you a record to show an inspector.
Volunteers running a hall kitchen near Church of All Saints, or anywhere in Leavesden, may not know when the extract was last cleaned, and a grease test settles it. For schools such as Alban Wood Primary School and Nursery, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed.
Leavesden is about 2 miles north of Watford, in Hertfordshire. Whether your site is in the middle of Leavesden or further out, TR19 inspection is available to all kinds of commercial premises, from a single unit to a large public building. We cover 381 places across Hertfordshire, from busy centres to quieter spots. For sites nearby, see our London page (19 miles or so).
Postcode districts we cover here for TR19 inspection: WD25 and WD5. Local streets include Forest Road, Langley Lane and Sheepcot Lane, and we cover them all for TR19 inspection. Main roads around Leavesden include the A405, which makes travel easy for evening and night visits. If your site is just outside Leavesden, we cover Garston (1 mile south-east), Meriden (1 mile south-east), North Watford (2 miles south), Watford (2 miles south) and Aldenham (2 miles south-east). Within a short drive, we also cover Hemel Hempstead (5 miles north-west), St Albans (5 miles north-east), Welwyn Garden City (11 miles north-east), Harpenden (9 miles north), Cheshunt (15 miles east) and Hatfield (8 miles north-east).
What’s near Leavesden
Around Leavesden, our work takes us to kitchens and buildings near Woodside Playing Fields and Francis Combe Academy and the streets around them. The nearest railway station is Garston station, roughly 1 mile south-east of the centre. Nearby you’ll also find Hertfordshire Fire Brigade Museum (3.1 miles south) and Hilfield Castle (4.1 miles south-east). Open spaces near Leavesden include Longspring Wood and Verulamium Lake.
TR19 inspection in Leavesden, done properly
Grease thickness testing tells you how much grease is sitting in the canopy, ducts and fan. 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’re dealing with missing TR19 certificates or history and surveys needed before quoting a full clean, we can put it right.
In a smaller place like Leavesden, the kitchens with extract systems are more likely to be a pub, a café, a takeaway or a school or care home kitchen than a big restaurant. A kitchen that cooks fewer hours still builds up grease, so the interval is set by hours of use and grease readings.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. We’re also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we’ve been trading since 2009.
- Location
- Leavesden (WD25, WD5)
- Wider area
- Hertfordshire
- Records
- Certificate and photo report
- Quote
- Fixed quote, typically within a working day
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
What else we do in Leavesden
When something else is needed
An honest diagnosis matters more to us than a booking, so here’s what TR19 inspection will not do:
- The grease itself, which needs a full or spot clean
- Ductwork that was designed or installed badly
- The responsible person’s own fire risk assessment
Not sure which it is? You can call us on 0345 646 2711 or drop us a line and we’ll tell you honestly.
What the work covers
- Insurer audits
- Deposit thickness tests
- Wet film thickness tests
- Access surveys
- Pre-clean surveys
- Post-clean checks
Staff cleaning versus specialist work
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, they should report it rather than try to fix it. We’ll take a look and give you a fixed quote.
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
Multi-site and managed buildings
Multi-site operators often want one contractor and one number. We work across London and the South East, so a run of sites can go into one programme and kept to a regular schedule.
Facilities teams in offices, schools and healthcare sites book us too across Hertfordshire. Larger estates can be phased building by building around the people who use them.
Your questions about TR19 inspection in Leavesden
Can you work in Leavesden outside opening hours?
Yes. We work evenings, overnight and at weekends. The site is handed back ready to open. Your opening times are the first thing we ask for.
Can you get to a site in Leavesden?
Yes, smaller places are covered as well as towns. A survey first, from pictures or a visit, means we arrive with the right kit.
Can we book visits on a schedule?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, depending on what the system needs.
What if parts of the system can’t be reached?
We record them on the report, with a note of where it is, and we explain what access is needed, for example new access panels.
Can you verify a clean after it’s been done?
Post-clean verification is a check after a clean, with fresh grease readings and pictures. It can follow our own cleans or another contractor’s.
How often should a kitchen extract be inspected?
That varies with the kitchen’s daily use. BESA sets minimum cleaning intervals of 3, 6 or 12 months by daily use, and grease readings help set the real interval.
Is TR19 a legal requirement?
No, TR19® isn’t legislation. The Fire Safety Order 2005 still requires the responsible person to manage fire risk, and grease in the extract is part of that. Many insurers also expect TR19 cleaning.
Do you carry out TR19 audits for insurers?
Yes. Insurers often want evidence the extract is managed to TR19®, and an audit report gives you that, along with any actions needed.
What the work involves, part by part
Restaurants, pubs and hotels
BESA’s minimum for heavy use of 12 to 16 hours a day is a clean every 3 months, with testing showing whether more is needed.
Extract fan and discharge
A greasy fan works harder and wears faster. The inspection shows whether it needs cleaning now.
What affects the cost of TR19 inspection
Every site gets its own quote. These are the things that affect it:
- A single visit or a regular plan
- Whether several sites go on one quote
- Site requirements such as sign-in and permits
- How easy every part is to reach
Combining work into one visit or one programme can make for a more efficient booking. Mention every system or site you need covered and we’ll price it together.
Helping us quote
Before you ask for a quote, gather:
- The roof, plant room or outside wall the system runs to
- Your opening hours and when the area is out of use
- Detail shots of panels, filters and grilles
- The postcode and the type of business
If you need TR19 inspection in Leavesden, ring 0345 646 2711, or send details by email. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. We usually send a fixed quote within one working day.
What happens on the day
Protection comes first: floors, worktops and anything near the work are covered. Then we make the system safe and start. It takes anything from an hour for a small canopy and short duct to a good part of a day for a large site, and we clear up before we go. We plan the journey to Leavesden and bring what the job is likely to need.
- The visit is arranged for when the kitchen isn’t busy.
- We look over the canopy, plenum, ducts, fan and discharge.
- Grease readings are taken at set points using WFTT or DTT.
- Photos are taken at each point, and access gaps noted.
- You get a report with readings, photos and recommendations.
Getting ready for the visit
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Clear the space around the work
- Make sure equipment near the work can be switched off and left to cool
How to get a quote
Some systems can be priced from photos; others need a survey. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, you get a fixed price before work begins.
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Common problems we fix in Leavesden
Kitchens change: a new menu, longer hours or more frying can all add grease. The old cleaning schedule may not match the kitchen any more.
It’s time to book a visit if you see:
- Ductwork where grease may be over the TR19 limits
- Uncertainty over how often to clean
- Extracts that have never been grease tested
- Insurers asking for TR19 evidence
Historic houses near Leavesden, such as High Elms Manor about 0.4 miles north-east, are a reminder that older buildings with event kitchens can have long, awkward duct routes.
What to look for in a quote
- Whether the work can be done while the site is closed
- What records you will receive afterwards
- Whether they’re fully insured
- Whether they recommend a next date