Hertfordshire · TR19 inspections and grease testing
TR19 Inspection in Colney Butts
Professional TR19 inspection in and around Colney Butts, booked around your opening hours and finished with a written report and pictures.
- Sites with gaps in their extract records
- Insurers asking for TR19 evidence
- Uncertainty over how often to clean
About our TR19 inspection in Colney Butts
TR19® Grease says grease should not exceed a mean of 200 microns between cleans, while a reading of 500 microns or more anywhere calls for immediate spot cleaning. Testing is how you know where your system stands. The work covers access surveys, deposit thickness tests and post-clean checks, and the jobs we see most are kitchens taken over with no cleaning records and surveys needed before quoting a full clean.
For a smaller kitchen near Colney Butts, a TR19® clean is the same job as anywhere: canopy, filters, plenum, duct, fan and discharge. We plan the visit around your hours, with the journey sorted in advance.
The report is your system’s health record: a dated account with pictures of everything we did. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal and sits alongside the report.
- Where
- Colney Butts (WD18, WD17, WD19)
- Region
- Hertfordshire
- Paperwork
- Certificate plus before-and-after pictures
- Quote
- A fixed quote up front
- When we work
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
How the job changes from site to site
Schools, hospitals and care homes
In healthcare and care settings, kitchens may run from early until late. Testing shows if the cleaning interval keeps pace.
Canopy and plenum
Clean-looking filters don’t mean a clean plenum. So we measure behind the filters, not just in front.
TR19 inspection in Colney Butts: the local picture
The FSA’s data shows about 44 bars, pubs and nightclubs and about 6 hotels and B&Bs registered in and around Colney Butts, up to about a mile and a half out. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Kitchens in Colney Butts get their food hygiene inspections from Watford council. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Our report lists what was cleaned and when, which is useful to have ready. Colney Butts sits within the area of Hertfordshire Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk.
If you run a church or community hall kitchen, near St Mary's Church or elsewhere in Colney Butts, its extract still collects grease from every lunch and event. Healthcare kitchens, like those at hospitals such as Watford General Hospital (about less than half a mile south-west), often cook for long hours, which puts them in BESA’s heavier-use bands.
Colney Butts is about 1 mile south of Watford, in Hertfordshire. Whatever kind of site you run in Colney Butts, we can take on TR19 inspection. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. Colney Butts is one of 381 places in Hertfordshire we cover for TR19 inspection. You can also see our page for London, roughly 17 miles from Colney Butts.
Our technicians cover all of WD18, WD17 and WD19 for TR19 inspection and the streets around it. Whether your site is on York Road, Hagden Lane and Willow Lane or anywhere close by, we can help. You will find Colney Butts on the A4178, so it’s easy for us to get to for out-of-hours visits. If your site is just outside Colney Butts, we cover Cassiobury (1 mile north), Holywell (1 mile west), Croxley Green (2 miles west), Eastbury (2 miles south) and Moor Park (2 miles south-west). Further out, we also cover Hemel Hempstead (8 miles north), St Albans (8 miles north-east), Welwyn Garden City (14 miles north-east), Harpenden (12 miles north), Hatfield (11 miles north-east) and Borehamwood (5 miles east).
Local landmarks in Colney Butts
In Colney Butts, that means kitchens and buildings near Croxley Danes School, Oxhey Park and The Red Lion pub. There’s a railway station in Colney Butts itself: Watford High Street station. Nearby you’ll also find Watford General Hospital (within half a mile south-west) and Hertfordshire Fire Brigade Museum (0.5 miles east). Open spaces near Colney Butts include Harrow Weald Common and Tumbling Bay.
What happens on the day
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 around an hour or two per canopy and duct system. For a site near Colney Butts, the work is booked around your opening hours, evenings and weekends included.
- The visit is arranged for when the kitchen isn’t busy.
- The system is checked from canopy to discharge.
- We take WFTT or DTT readings at set points along the system.
- We photograph the test points and record any sections we can’t reach.
- We send a report setting out the readings, pictures and next steps.
Preparing for the visit
- Clear loose items from the work area
- Mention any sign-in, permit or induction we need
- Arrange a key holder or contact on site
Ask for a quote
Need a price for TR19 inspection? Please ring 0345 646 2711 or drop us a line and tell us about the site. We will talk you through the work and give you a fixed quote before you commit to anything.
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Staff cleaning versus specialist work
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
Aftercare tips
After the visit, a few habits help the work last:
- Flag oily drips near the extract
- Keep to the recommended interval
- Keep the route to access panels clear
- Mention new equipment or longer hours at the next test
After the inspection, we send a report showing each reading, its location and pictures. File it alongside your TR19 certificates.
Regular grease readings keep the cleaning interval honest. It spots changes in how fast grease builds.
FAQs for Colney Butts
Do you work overnight in Colney Butts?
Yes, we can come after you close and finish before you open. The site is handed back ready to open. When you ring 0345 646 2711 or drop us a line, mention when the site is quiet.
Can school kitchens in Colney Butts be cleaned in the holidays?
Yes, out-of-term visits are normal for schools. Food Standards Agency records list about 35 schools, colleges and universities with registered kitchens within about a mile and a half of Colney Butts. Booking early in the term gives the best choice of holiday dates.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Do you offer emergency callouts?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
Which kinds of sites do you work on?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.
Do you cover Colney Butts?
Yes. Our technicians work in Colney Butts, within the South East and London area we cover.
Can you price the work without visiting?
Usually, yes. Send wide shots, close-ups of any access panels and anything that worries you, and a fixed quote normally follows within one working day. If photos aren’t enough, we will survey first.
Do you carry out TR19 audits for insurers?
Yes. Many insurers ask for proof of TR19 cleaning and inspection, and an audit report gives you that, with recommendations where something needs doing.
Landlords, agents and facilities managers
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we are happy to quote for all of it.
Also near Colney Butts
Also in Colney Butts
When to call us in Colney Butts
You can’t judge grease thickness by eye. A system can look clean at the filters and be heavily coated further in, so readings are the reliable guide.
If you notice any of these, it’s worth a diagnosis:
- Systems cleaned on a calendar with no measurements
- Insurers asking for TR19 evidence
- Checking the result of a recent clean
- Missing TR19 certificates or history
Bursars and site managers at schools such as Watford Grammar School for Girls tend to book extract cleaning for when the kitchen is empty.
What to look for in a quote
- If the quote is a fixed price or an estimate
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- What hours they’ll be on site
- What paperwork you get at the end
What affects the quote in Colney Butts
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The condition of the system
- Where the site is and how we reach it
- When the work can happen, such as evenings, overnight or weekends
- A single visit or a regular plan
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are unsure, call 0345 646 2711 or drop us a line and we’ll give you an honest view and a fixed quote.
What we need to know
A few details help us quote accurately. With your enquiry, please include:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Close-ups of filters, grilles, hatches or access panels
- Any previous report or certificate
- Photos showing the whole system and its surroundings
Getting a quote doesn’t take long. Send a few details and pictures, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.