Hertfordshire · TR19 inspections and grease testing
Waterdale TR19 inspection
For TR19 inspections, grease thickness testing, pre-clean surveys and post-clean verification in Waterdale, one call is all it takes: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Extracts that have never been grease tested
- Sections of duct that cannot be reached
- Sites with gaps in their extract records
About our TR19 inspection in Waterdale
BESA’s minimum cleaning frequencies depend on how long the kitchen cooks each day: every 3 months for heavy use of 12 to 16 hours a day, every 6 months for moderate use of 6 to 12 hours, and every 12 months for light use of 2 to 6 hours. Those are minimums, and grease readings help set the real interval. We are often asked to deal with extracts that have never been grease tested and surveys needed before quoting a full clean, on pre-clean surveys, access surveys and post-clean checks.
Work in a small place like Waterdale starts with a call to agree access and timings, and the clean covers the whole system, as it would anywhere: canopy to discharge, then a TR19® certificate and a photo report.
For insurers and inspectors, the record counts. So every job comes with a written report and photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Location
- Waterdale (WD25)
- Wider area
- Hertfordshire
- Paperwork
- TR19® certificate and photo report
- Price
- Fixed quote, usually within a working day
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
How we price TR19 inspection
A fixed price needs a few facts first. We check:
- The times the site is available
- One-off work versus a regular cycle
- The size of the system
- Any permits to work or inductions
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we will explain each part.
What to send for a quote
Before you ask for a quote, gather:
- Close-ups of filters, grilles, hatches or access panels
- When the site is open and when it’s quiet
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Any previous report or certificate
For a fixed quote, give us a ring on 0345 646 2711 or email us and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. You will usually have a quote within one working day.
What the work involves, part by part
Vertical risers
Risers can be hard to get into. We record what can and can’t be reached.
Schools, hospitals and care homes
School and college kitchens still need their extract checked. Readings show if the interval is right.
When it’s something else
TR19 inspection can’t fix everything, and we’d rather say so up front. It doesn’t solve:
- The responsible person’s own fire risk assessment
- Design faults in the extract system
- Hidden runs that need access panels first
If in doubt, phone us on 0345 646 2711 or drop us a line and we’ll say what we think.
What we work on in Waterdale
- Post-clean checks
- Wet film thickness tests
- Access surveys
- Pre-clean surveys
- Deposit thickness tests
- Insurer audits
Common questions in Waterdale
Which fire service covers Waterdale?
It’s Hertfordshire Fire and Rescue Service, which covers Waterdale. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
Can you clean school kitchen extracts in Waterdale during the holidays?
Yes. Half-terms and the summer break are the natural time for school work. There are about 14 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Waterdale. You can call us on 0345 646 2711 or drop us a line with the dates the site is empty.
What information do you need?
Some photos and a quick description of the system plus the address and your hours. If we need more, we will ask.
How much does TR19 inspection cost?
The cost depends on the size of the system, its condition, access and timing. Ask us for a fixed quote, typically ready within one working day.
What does a pre-clean survey involve?
We survey, measure and photograph the system first. We can work from pictures and details, or visit, as suits the job.
How often should a kitchen extract be inspected?
Often enough to know the mean stays under 200 microns between cleans. If readings rise, the interval should shorten.
What is post-clean verification?
Post-clean verification is a check after a clean, with fresh grease readings and photos. It can follow our own cleans or another contractor’s.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Common problems we fix in Waterdale
When a site in Waterdale changes owner or cleaning contractor, the records don’t always follow. With no history, the current state of the extract is a guess.
Common reasons sites call us include:
- Extracts that have never been grease tested
- Ductwork where grease may be over the TR19 limits
- An insurer’s request for a TR19 audit
- Pre-clean surveys before a first TR19 clean
For schools such as Parmiter's School, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed.
What to look for in a quote
- Exactly which parts of the system are covered
- What hours they’ll be on site
- How VAT is shown on the quote
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
How it works
At the end of the visit, someone from your team can look over the work with us. Anything we couldn’t reach or that needs attention is pointed out there and then, and the same goes into the written report. All told, the work takes around an hour or two per canopy and duct system. In a small place like Waterdale, the journey is planned ahead and the visit arranged around the site’s hours.
- The visit is arranged for when the kitchen is not busy.
- Every part of the system is examined, end to end.
- Grease thickness is measured at set points by 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
- Move anything stored near the system
- Arrange a key holder or contact on site
- Mention any locked doors, roof access or ceiling voids
How to get a quote
Need a price for TR19 inspection? Please give us a ring on 0345 646 2711, or email photos and tell us about the site. We’ll explain what we’d do and send a fixed quote before anything is booked.
Advice
Grease, kitchens and Waterdale
The FSA’s data shows about 12 pubs and bars registered within 1.5 miles or so of the middle of Waterdale. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Food hygiene inspections in Waterdale are the job of Three Rivers council’s environmental health team. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Before-and-after photos from each clean are a simple way to show the extract is in hand. Waterdale sits within the area of Hertfordshire Fire and Rescue Service. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Leavesden Hospital is the nearest hospital to Waterdale, about 0.8 miles south-west. Volunteers running a hall kitchen near Church of All Saints, or anywhere in Waterdale, may not know when the extract was last cleaned, and a grease test settles it.
Waterdale is about 3 miles north of Watford, in Hertfordshire. Wherever you are in the WD25 postcode area, we cover TR19 inspection for commercial sites. Waterdale is one of 381 towns, villages and districts in Hertfordshire we cover for TR19 inspection. London is in our area too, about 19 miles from Waterdale.
Work in WD25 is surveyed, quoted and booked the same way as anywhere else. We also cover Bricket Wood (1 mile east), How Wood (2 miles north-east), Chiswell Green (2 miles north-east), Appspond (2 miles north) and Park Street (2 miles north-east). We also work in nearby towns such as Watford (3 miles south), Hemel Hempstead (4 miles north-west), St Albans (4 miles north-east), Welwyn Garden City (10 miles north-east), Harpenden (8 miles north) and Cheshunt (14 miles east).
Around Waterdale
In Waterdale, that means kitchens and buildings near Woodside Playing Fields, The Black Boy Public House and Mount Pleasant Lane Primary School and the streets around them. The closest station to Waterdale is Bricket Wood station, roughly 1.3 miles east of the centre. Other landmarks nearby include Hilfield Castle (4.4 miles south-east) and Charter Place (3.6 miles south). Green spaces nearby include Longspring Wood and Verulamium Lake.
What happens if it’s left?
Finding a hotspot early means a targeted spot clean rather than a bigger problem later. Left alone, grease keeps building between cleans. Our emergency line runs 24/7, but a planned visit to Waterdale is calmer for everyone.
You won’t find a price list here, because each job is priced on what it involves. Call for a fixed quote, and we will explain what it covers.
Why Waterdale businesses choose us
- A single point of contact for sites across the South East and London
- Work around your opening hours, with 24/7 emergency cover
- CHAS and SafeContractor accredited, with ISO 9001
- We diagnose before we treat
See how cleaning jobs are priced or our accreditations and certificates.
Nearby places to Waterdale
Also in Waterdale
Landlords, agents and facilities managers
We also work for facilities teams across offices, schools and healthcare in Waterdale and across Hertfordshire. Work can be phased by floor, building or site to keep disruption down.
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 the report can go to both.