Hertfordshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Boxmoor, Hertfordshire
For TR19 inspection in Boxmoor, one call is all it takes, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Extracts that may be over the 200 micron mean
- An insurer’s request for a TR19 audit
- Sites with gaps in their extract records
How we handle TR19 inspection in Boxmoor
Insurance policies often require evidence of TR19® cleaning and inspection. Missing records can lead to a claim being reduced or refused. A TR19 audit sets out the system’s condition, with readings and pictures, for sites in Boxmoor and the rest of Hertfordshire. If you’re dealing with extracts that may be over the 200 micron mean and pre-clean surveys before a first TR19 clean, we can put it right, from post-clean checks, access surveys and deposit thickness tests onwards.
Around a smaller place like Boxmoor, kitchen extracts tend to belong to pubs, cafés, takeaways and school or care home kitchens. A kitchen that cooks fewer hours still builds up grease, so cleaning is planned around how much it cooks and what the readings show.
We have been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.

- Place
- Boxmoor (HP1, HP3, HP2)
- Wider area
- Hertfordshire
- Records
- Certificate plus before-and-after photos
- Quotes
- A fixed price before work begins
- Hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
How it works
There are three stages on the day: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, while signing off means the written report and photos. Most of the time goes on the work itself, and that takes an hour or two for a single kitchen, longer for a large or complex system. We plan the journey to Boxmoor and bring what the job is likely to need.
- After the clean, we arrange a time to check the system.
- We open the access points used on the clean.
- Grease readings are taken again at set points.
- We photograph each area to record how it was left.
- The results are reported, with anything missed flagged.
Preparing for the visit
- Let us know when the site is closed or quiet
- Make sure someone can let us in and lock up afterwards
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
Get a fixed quote
The quickest way to a quote is to send photos: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Related advice
TR19 inspection around Boxmoor
The FSA’s data shows about 30 pubs and bars and about 3 hotels, B&Bs and guest houses registered within 1.5 miles or so of the middle of Boxmoor. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Kitchens in Boxmoor get their food hygiene inspections from Dacorum council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Before-and-after photos from each clean are a simple way to show the extract is in hand. Hertfordshire Fire and Rescue Service covers Boxmoor. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
Commuter trade near Hemel Hempstead station can mean long cooking hours, and long hours put a kitchen into BESA’s more frequent cleaning bands. Healthcare kitchens, like those at hospitals such as Hemel Hempstead Hospital (about 0.7 miles north-east), often cook for long hours, which puts them in BESA’s heavier-use bands. Term dates shape school work: for a school like Boxmoor Primary School, an extract clean fits neatly into a half-term or summer break.
Boxmoor is about 1 mile south-west of Hemel Hempstead, in Hertfordshire. Boxmoor gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with pictures. Our Hertfordshire coverage runs to 381 places, and Boxmoor is one of them. You can also see our page for Milton Keynes, roughly 23 miles from Boxmoor.
All of HP1, HP3 and HP2 is within our area for TR19 inspection, from the main roads to the quietest streets. If you need TR19 inspection at premises on Cardy Road, Heath Lane and London Road or anywhere close by, we can help. With the A4251 close by, Boxmoor is easy for our technicians to reach at any hour. We also cover Warner's End (1 mile north), Grovehill (1 mile north-east), Woodhall Farm (1 mile north-east), Apsley (1 mile south-east) and Hemel Hempstead (1 mile north-east). Within a short drive, we also cover Watford (7 miles south-east), St Albans (7 miles east), Welwyn Garden City (13 miles east), Harpenden (8 miles north-east), Hatfield (11 miles east) and Borehamwood (11 miles south-east).
Near you in Boxmoor
Locally, jobs take us to businesses close to Gadebridge Park, The Hemel Hempstead School and Fishery Inn, among other places. There’s a railway station in Boxmoor itself: Hemel Hempstead station. Nearby you’ll also find Hemel Hempstead Hospital (0.7 miles north-east). Green spaces nearby include Long Deans.
What affects the quote in Boxmoor
Before we fix a price, we need to know a few things. We look at:
- Site rules, permits and inductions
- Where the site is and how we reach it
- Whether it’s a one-off visit or part of a schedule
- Access, including roofs, risers and ceiling voids
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 you know where you stand.
What we need to know
When you call or email, these details help:
- Detail shots of panels, filters and grilles
- The paperwork from the last visit, if you have it
- Any symptoms, from odd noises to smells or leaks
- Your opening hours and when the area is out of use
Some systems can be priced from pictures; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, you get a fixed price before we start.
Aftercare tips
A little care between visits keeps the system in better shape. Our advice:
- Keep the route to access panels clear
- Share inspection reports with your insurer or broker when asked
- Flag oily drips near the extract
- Keep to the recommended interval
After the inspection, we send a report showing each reading, its location and photos. Keep it with your fire safety and TR19 records.
Close the access gaps found during inspection, so grease is not left building in hidden parts.
Honest limits
To be straight with you, there are a few things this work won’t fix:
- The responsible person’s own fire risk assessment
- Installation problems, which fall under design guidance such as DW172
- Heavy deposits found on test, which still need cleaning
If you’re not sure, just give us a ring on 0345 646 2711 or send us an email and we’ll give you a straight answer before booking.
Parts of the system we cover
- Insurer audits
- Wet film thickness tests
- Access surveys
- Deposit thickness tests
- Pre-clean surveys
- Post-clean checks
Why deal with it now?
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. A site near Boxmoor that has to close at short notice is hard to cover for.
The price reflects the work, not guesswork. That is why every job is surveyed first, and why the quote is fixed before any work starts.
Why choose Duct Doctor in Boxmoor
- Photo reports with every job
- Accredited under CHAS and SafeContractor, with ISO 9001
- Survey first, then a fixed quote
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Your questions about TR19 inspection in Boxmoor
Can the work in Boxmoor be done at night or at weekends?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Boxmoor needn’t be disturbed. Your opening times are the first thing we ask for.
Do you work in villages like Boxmoor?
Yes, Boxmoor is part of our area, however small the site. A survey first, from pictures or a visit, means we arrive with the right kit.
Do you survey before quoting?
Yes. Every job is surveyed first, from your photos and details, or with a visit where needed. Then you get a fixed quote.
What is grease thickness testing?
Readings are taken using the Wet Film Thickness Test or the Deposit Thickness Test, and set against the TR19® Grease figures.
What do you do with what you remove?
Anything we remove is contained as we work and taken away with us, including grease, debris and dirty water. We don’t leave it behind.
How much time does an inspection need?
It takes a morning or less for one kitchen, more where there are several systems. The visit is timed so cooking isn’t disrupted.
Do you offer maintenance contracts?
Yes, of course. Tell us what you have and how it’s used and we’ll propose a schedule with a fixed quote.
Can you price the work without visiting?
In many cases, yes. With good pictures, the site type and your last report, we can price many jobs. Larger or hidden systems need a survey on site first.
Landlords, agents and facilities managers
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.
Also near Boxmoor
Also in Boxmoor
Different parts, different methods
Extract fan and discharge
Grease on the fan adds to wear. The inspection shows whether it needs cleaning now.
Schools, hospitals and care homes
Inspections are planned around mealtimes and holidays to avoid disruption.