Hertfordshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Shenleybury, Hertfordshire
TR19 inspection for Shenleybury, from a team that has been trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Surveys needed before quoting a full clean
- Extracts that have never been grease tested
- Post-clean verification after another contractor’s clean
Common questions in Shenleybury
Can a school canteen extract in Shenleybury be done out of term time?
Yes, and it’s the easiest time to do it. There are about 7 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Shenleybury. You can call 0345 646 2711 or send us an email with the dates the site is empty.
Will you come out to Shenleybury?
Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.
What do you need from me for a quote?
Only a few details: the address, the site type, your opening hours and how we reach the system. Photos and any previous paperwork make it quicker. After that, simply phone us on 0345 646 2711 or use the quote form.
Do you offer maintenance contracts?
Yes. Send details of the systems and how they’re used and we will propose a schedule with a fixed quote.
What accreditations do you have?
We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
Do you check other contractors’ cleans?
It’s an inspection after cleaning, to show what state the system was left in, for our cleans and other firms’ alike.
How often should a kitchen extract be inspected?
Often enough to know the mean stays under 200 microns between cleans. The readings themselves tell you if the interval needs to change.
How do you keep the site clean during the work?
We start with protection: sheeting over floors, worktops and anything close to the work. We tidy up and take our waste away before we leave.
TR19 inspection in Shenleybury
Not every kitchen fits neatly into a calendar. Some kitchens build up grease faster than the minimum intervals assume, and only measurement shows it. Our readings give your risk assessment real numbers to work from. We are often asked to deal with missing access panels found on survey and pre-clean surveys before a first TR19 clean, across wet film thickness tests, pre-clean surveys and insurer audits.
In a village or hamlet like Shenleybury, the kitchens that need extract cleaning are typically a pub, a school, a care home or a hall kitchen, wherever there is one. Every one of them still needs its extract kept clear of grease.
Good records are part of the job. Each visit is written up with photos, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.

- Location
- Shenleybury (WD7)
- Wider area
- Hertfordshire
- Reporting
- Certificate and photo report
- Price
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Updated
- 30 October 2026
What affects the quote in Shenleybury
Your quote is based on your site. We take into account:
- Whether it’s a one-off visit or part of a schedule
- When the work can happen, such as evenings, overnight or weekends
- How many systems or sites are involved
- Access, including roofs, risers and ceiling voids
You will not find a price list here, because the cost depends on the site in front of us. For a fixed quote, ring 0345 646 2711, or email photos, and we’ll talk you through it.
What we need to know
Many jobs can be priced from photos and some basics. Send what you can of the following:
- The times we could work without disrupting the site
- The postcode and the type of business
- The roof, plant room or outside wall the system runs to
- Any previous report or certificate
If you need TR19 inspection in Shenleybury, give us a ring on 0345 646 2711 or drop us a line. Let us know the site type and the opening hours, plus photos or the previous report if they’re to hand. A fixed quote usually follows within one working day.
Aftercare tips
Simple habits between visits make a real difference. We recommend:
- Never cook with filters missing
- Look out for grease drips round the canopy edge
- Do not box in or cover duct access panels
- Flag changes in how much frying the kitchen does
You get a report with the grease readings, where they were taken and pictures of each point. Keep it with your fire safety and TR19 records.
Keep all TR19 records together so you can produce them quickly.
Signs you need TR19 inspection in Shenleybury
TR19® is the benchmark that insurers, fire officers and EHOs refer to. TR19® itself is not law, but the Regulatory Reform (Fire Safety) Order 2005 requires the responsible person to assess and reduce fire risk, and in a kitchen that means keeping grease under control.
Any of these means the system needs a check-up:
- An insurer’s request for a TR19 audit
- Extracts that may be over the 200 micron mean
- Sections of duct that cannot be reached
- Post-clean verification after another contractor’s clean
Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Wyllyotts Manor is about 4.1 miles east), access may need planning.
Comparing quotes
- Proof of accreditation you can verify
- If they look at the system before pricing
- What records you’ll receive afterwards
- How areas they can’t reach will be recorded
What happens if it’s left?
Catching heavy deposits early keeps the fix small. Left alone, grease keeps building between cleans. Rural sites can’t always move to another kitchen or room when something fails.
The cost depends on the size of the system, what state it’s in and how easy it is to reach. You get a fixed price before we start, so there are no surprises.
Why choose Duct Doctor in Shenleybury
- We diagnose before we treat
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Fully insured
- Photo reports with every job
Read how cleaning jobs are priced or how to check a contractor.
Managing agents and facilities teams in Shenleybury
Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we will send a fixed quote.
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We’re happy to deal with either side and send the paperwork to whoever needs it.
Towns and villages near Shenleybury
Other services in Shenleybury
Kitchen extracts in Shenleybury
The FSA’s food hygiene register includes about 8 bars, pubs and nightclubs within 1.5 miles or so of the middle of Shenleybury. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Environmental health officers from Hertsmere council inspect food businesses in Shenleybury. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Before-and-after pictures from each clean are a simple way to show the extract is in hand. Fire safety in Shenleybury falls to Hertfordshire Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Kingsley Green is the nearest hospital to Shenleybury, about 0.7 miles west. Where a hall near St Botolphs, or anywhere in Shenleybury, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Shenleybury is about 3 miles north of Borehamwood, in Hertfordshire. Wherever you are in the WD7 postcode area, we can carry out TR19 inspection at your premises. Shenleybury is one of 381 places in Hertfordshire where we work for commercial clients. Our London page covers sites nearby (16 miles or so).
We cover every part of the WD7 postcode area for TR19 inspection and the roads nearby. If you need TR19 inspection at premises on Hugo Gryn Way, Farm Close and Shenleybury or a nearby road, we can help. We also cover the places around Shenleybury: Broad Colney (1 mile north-west), London Colney (1 mile north), Tyttenhanger (2 miles north), Colney Heath (3 miles north-east) and North Mymms (3 miles east). Larger places within reach include Watford (5 miles south-west), Hemel Hempstead (8 miles north-west), Stevenage (15 miles north), St Albans (4 miles north-west), Welwyn Garden City (8 miles north-east) and Harpenden (8 miles north).
Around Shenleybury
Typical jobs here are in premises near The Black Lion pub, Manor Lodge School and North Mimms Park. Shenleybury’s nearest station is Radlett station, roughly 1.8 miles south-west of the centre. Other landmarks nearby include Hilfield Castle (4 miles south-west) and The Maltings (3.8 miles north-west). Open spaces near Shenleybury include Verulamium Lake and Broad Colney Lakes.
What the work involves, part by part
Schools, hospitals and care homes
Education kitchens need TR19 inspections like any other. Readings show if the interval is right.
Canopy and plenum
We look over the canopy, inside and out, with readings where grease collects.
How it works
On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool first, and floors and nearby surfaces are sheeted. The work itself takes an hour or two for a single kitchen, longer for a large or complex system. A quick note on how to find the site and where to park makes a visit to Shenleybury run smoothly.
- First we look at the system’s cleaning history, if there is one.
- The layout is traced from the canopy to the discharge.
- Access panels are located and any missing ones noted.
- We measure the grease and photograph each point.
- You get a report and a fixed quote for the clean.
Preparing for the visit
- Agree a time when the area can be out of use
- Name a contact who can let us in at the agreed time
- Let us know about parking and loading
How to get a quote
To get a fixed quote, call 0345 646 2711 or use the quote form with the site type, your trading hours and a short description of the system. A few photos and your last certificate or report help a lot. You will typically have a quote within one working day.