Hertfordshire · TR19 inspections and grease testing
TR19 inspections in Croxley Green
Looking for TR19 inspection in Croxley Green? We survey first, give you a fixed quote and work around your opening hours, finishing with a written report and pictures.
- Extracts that may be over the 200 micron mean
- Insurance renewals needing proof of TR19 cleaning
- Systems that need surveying before cleaning
Grease, kitchens and Croxley Green
Food Standards Agency records list about 48 restaurants, cafés and works canteens and about 15 takeaways and sandwich shops within about 1.5 miles of central Croxley Green. Kitchens like these cook for very different hours, and grease testing shows which extracts need cleaning soonest. Kitchens in Croxley Green get their food hygiene inspections from Three Rivers council. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Our report lists what was cleaned and when, which is useful to have ready. Croxley 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.
For schools such as Harvey Road Primary School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed. If you run catering at a historic house or estate in the area (Chenies Manor House is about 4.2 miles north-west), event kitchens in older buildings often have awkward duct runs that need planning.
Croxley Green is about 1 mile north-east of Rickmansworth, in Hertfordshire. We provide TR19 inspection for commercial premises of every kind in Croxley Green and the rest of Hertfordshire. Croxley Green is one of 381 places in Hertfordshire where we work for commercial clients. For sites nearby, see our London page, about 18 miles away.
Our technicians cover all of WD3 and WD18 for TR19 inspection and the roads nearby. We cover sites on New Road, Harvey Road and Bateman Road and the roads around them. Nearby, we also carry out TR19 inspection in Holywell (1 mile east), Rickmansworth (1 mile south-west), Batchworth (1 mile south-west), Chorleywood West (2 miles west) and Moor Park (2 miles south). We also work in nearby towns such as Hemel Hempstead (7 miles north), St Albans (9 miles north-east), Welwyn Garden City (15 miles north-east), Harpenden (12 miles north), Hatfield (12 miles north-east) and Borehamwood (7 miles east).
Landmarks near Croxley Green
Around Croxley Green, our work takes us to kitchens and buildings near Croxley Danes School, Rickmansworth School and The Red House, among other places. The nearest railway station is Rickmansworth station, about 1.3 miles west of the centre. Well-known places in the area include Hertfordshire Fire Brigade Museum (2.4 miles east) and Hilfield Castle (4.7 miles east). For a walk, there’s Chorleywood Common and Tumbling Bay.
About our TR19 inspection in Croxley Green
Under TR19® Grease, the mean grease thickness should stay at or below 200 microns between cleans, while a reading of 500 microns or more anywhere calls for immediate spot cleaning. Grease testing shows which side of those lines you are on. If you are dealing with kitchen extract systems with no recent grease readings and kitchens taken over with no cleaning records, we can put it right.
In a small place like Croxley Green, kitchens are often in older or extended buildings, with long single-storey duct runs, where grease settles in the flat sections. Access, parking and timings are agreed before the day.
Accreditations are easy to claim and worth checking. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Location
- Croxley Green (WD3, WD18)
- Wider area
- Hertfordshire
- Records
- TR19® certificate and photo report
- Quote
- A fixed quote up front
- When we work
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
What a clean won’t put right
Not every problem is solved by TR19 inspection, and we will tell you before any work starts. It will not put right:
- Design faults in the extract system
- Fan breakdowns, which need a repair visit
- Parts of the duct nobody can reach yet
If in doubt, call 0345 646 2711 or use the quote form and we will say what we think.
Where we work
- Insurer audits
- Deposit thickness tests
- Pre-clean surveys
- Wet film thickness tests
- Post-clean checks
- Access surveys
Looking after it afterwards
To keep the system working properly between visits:
- File every inspection report with your certificates
- Tell us if menus or opening hours change
- Have the latest report ready for insurance renewals
- Keep the route to access panels clear
Readings of 500 microns or more are highlighted as needing immediate spot cleaning, and we can quote to do it.
Fit access panels where the survey finds sections cannot be reached, so every part of the duct can be cleaned.
What your team can do, and what needs us
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they don’t reach the grease that builds up further in. That part needs specialist access and equipment.
Staff cleaning does not replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
Towns and villages near Croxley Green
What else we do in Croxley Green
Leave it or put it right?
Sites in Croxley Green that have never measured grease can’t tell whether their cleaning interval suits the kitchen. Testing gives you the evidence to set it properly. Systems in rural buildings are often out of sight and out of mind.
A single site or a whole portfolio, the quote is built the same way: the work involved, the access and the timing. The price is fixed before any work starts.
Why choose Duct Doctor in Croxley Green
- Photo reports with every job
- A single point of contact for sites across the South East and London
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Accredited under CHAS and SafeContractor, with ISO 9001
Take a look at how cleaning jobs are priced and our accreditations and certificates.
Questions from Croxley Green
Do you clean school canteen extracts around Croxley Green out of term?
Yes, holiday work suits schools best. The FSA’s register shows about 17 schools and colleges with food registrations within roughly a mile and a half of Croxley Green. Just phone us on 0345 646 2711 or send us an email with your term dates and we’ll plan around them.
Who inspects food businesses in Croxley Green?
Kitchens in Croxley Green are inspected by Three Rivers council’s environmental health officers. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.
Is a quote from pictures possible?
Yes, for many jobs. Send a few wide photos plus close-ups of panels, filters or grilles, and we usually come back within one working day. Some sites still need a visit, and we will say so.
Do you check other contractors’ cleans?
After a clean, we take new readings and pictures to show how the system was left. It can follow our own cleans or another contractor’s.
How much notice should we give?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and if it’s an emergency, call us any time.
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. We show your readings against those figures.
What happens to the waste?
Waste is contained during the work and removed when we leave, from grease and debris to used cleaning water. None of it is left on site.
What do you need from me for a quote?
The site address, the type of premises and your opening hours, along with a few photos and any previous report.
The process
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool before any work starts, and the area around the work is covered and protected. On site, it takes an hour or two for a single kitchen, longer for a large or complex system. The timing of a visit to Croxley Green is set by you, and the travel is our side of the planning.
- First we look at the system’s cleaning history, if there is one.
- The layout is traced from the canopy to the discharge.
- We note where access panels are and where more are needed.
- Grease readings are taken and pictures recorded.
- You get a report and a fixed quote for the clean.
Preparing for the visit
- Arrange a key holder or contact on site
- Mention any sign-in, permit or induction we need
- Mention any locked doors, roof access or ceiling voids
How to get a quote
Every quote begins with a look at the system, from your pictures and details or, where that isn’t enough, a survey on site. After that, you get a fixed price for the work, before work begins.
Related advice
Multi-site and managed buildings
Running several sites is easier with one contractor. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
When to call us in Croxley Green
Grease is fuel. Flames from the range can be pulled into the canopy and travel through the ducts to other parts of the building. Knowing how much there is lets you act before it becomes a hazard.
Look out for these warning signs:
- Heavy grease suspected in the plenum or ducts
- Extracts that have never been grease tested
- Kitchens taken over with no cleaning records
- An insurer’s request for a TR19 audit
If you run a church or community hall kitchen, near St Oswald's Parish Church or elsewhere in Croxley Green, its extract still collects grease from every lunch and event.
Comparing quotes
- Whether the whole system is included, or only the parts that are easy to reach
- What happens if part of the system can’t be accessed
- If they look at the system before pricing
- How they set the interval to the next visit