Hertfordshire · TR19 inspections and grease testing
TR19 Inspection in Colney Street
TR19 inspection in Colney Street, surveyed first and signed off with a written report and photos. Call for a fixed quote.
- Missing TR19 certificates or history
- Parts of the system left out of past cleans
- Systems that need surveying before cleaning
TR19 inspection in Colney Street
BESA’s minimum cleaning frequencies depend on how long the kitchen cooks each day: heavy use (12 to 16 hours a day) every 3 months, moderate use (6 to 12 hours) every 6 months and light use (2 to 6 hours) every 12 months. Those are minimums, and grease readings help set the real interval. If you have uncertainty over how often to clean and missing access panels found on survey, we can put it right.
For a kitchen in or near Colney Street, the visit is planned around opening hours and the journey, and the clean itself is the same full TR19® job as in any town: canopy to discharge, then a TR19® certificate and a photo report.
The report is your system’s health record: a dated account with photos of everything we did. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Where
- Colney Street (AL2, WD7)
- Wider area
- Hertfordshire
- Paperwork
- TR19® certificate and photo report
- Quotes
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Checked
- 30 October 2026

What TR19 inspection looks like in Colney Street
According to Food Standards Agency records, there are about 7 bars, pubs and nightclubs across Colney Street and its immediate surroundings (about a mile and a half). Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Hertfordshire Fire and Rescue Service covers Colney Street. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. In Colney Street, food businesses are inspected by environmental health officers from St Albans City council. 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.
Bursars and site managers at schools such as Park Street Church of England Voluntary Aided Primary School tend to book extract cleaning for when the kitchen is empty. Church and community hall kitchens, near Church of the Holy Trinity or anywhere around Colney Street, are easy to forget, but their extracts collect grease like any other. Historic houses near Colney Street, such as High Elms Manor about 2.9 miles west, are a reminder that older buildings with event kitchens can have long, awkward duct routes.
Colney Street is about 3 miles south of St Albans, in Hertfordshire. Sites in Colney Street get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where needed and a written report with photos. Our area takes in 381 places across Hertfordshire, large and small. Our London page covers sites nearby, about 18 miles away.
Postcode districts we cover here for TR19 inspection: AL2 and WD7. You’ll find streets such as Old Parkbury Lane, Ventura Park and Radlett Road, and we cover them all for TR19 inspection. If your site is just outside Colney Street, we cover Frogmore (1 mile north-west), Park Street (1 mile north-west), How Wood (1 mile north-west), Bricket Wood (2 miles west) and Chiswell Green (2 miles north-west). We also work in nearby towns such as Watford (4 miles south-west), Hemel Hempstead (6 miles north-west), Stevenage (15 miles north-east), St Albans (3 miles north), Welwyn Garden City (8 miles north-east) and Harpenden (8 miles north).
Local landmarks in Colney Street
Typical jobs here are in premises near The George and Dragon Public House and Samuel Ryder Academy, among other places. Colney Street’s nearest station is How Wood station, roughly 1 mile north-west of the centre. Well-known places in the area include Kingsley Green (1 mile east) and The Maltings (2.9 miles north). For a walk, there’s Verulamium Lake and Broad Colney Lakes.
Places near Colney Street
What else we do in Colney Street
How the visit works
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Afterwards, the area is left tidy and the written report follows. A few photos of the system help us make the most of a visit to a place like Colney Street.
- We go through any past certificates and reports.
- 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.
- We report back with readings and a fixed quote.
Preparing for the visit
- Move anything stored near the system
- Name a contact who can let us in at the agreed time
- Allow time for equipment near the work to be turned off and cool down
Getting a quote
Need a price for TR19 inspection? Please call us on 0345 646 2711 or use the quote form with a few details about the site. We will talk you through the work and give you a fixed quote before you commit to anything.
Advice
Why act early in Colney Street
A pre-clean survey avoids surprises on the night. Access problems are spotted in advance rather than on the night, so the clean covers the whole system. Systems in rural buildings are often out of sight and out of mind.
Every site is different, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
Why us?
- CHAS, SafeContractor and ISO 9001
- A written report with photos after every visit
- Fixed quotes from a survey or photos
- Survey first, then a fixed quote
Read what affects the cost or our accreditations and certificates.
What the work involves, part by part
Canopy and plenum
Filters can look fine while the plenum behind them is heavily coated. So we measure behind the filters, not just in front.
Schools, hospitals and care homes
School and college kitchens still need their extract checked. Testing shows whether the interval suits.
Keeping the system healthy
Think of this as the after-treatment advice, in brief:
- Diary the next grease test and clean
- Store grease readings where your insurer can see them
- Flag oily drips near the extract
- Clean or swap grease filters as often as the kitchen needs
The report recommends when the system should next be cleaned and tested, from the measured grease and the kitchen’s hours.
Fit access panels where the survey finds sections can’t be reached, so grease is not left building in hidden parts.
Managing agents and facilities teams in Colney Street
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We can quote either party, and the report can go to both.
Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept on a regular cycle.
Questions from Colney Street
Can you work in Colney Street outside opening hours?
Yes, nights and weekends are routine for us. Your customers, staff or residents in Colney Street needn’t be disturbed. Tell us your opening hours when you ask for a quote.
Is Colney Street within the area you cover?
Yes, we work in villages as well as towns, and Colney Street is covered. A survey first, from pictures or a visit, means we arrive with the right kit.
Is TR19 a legal requirement?
No, not in itself. The Fire Safety Order 2005 still requires the responsible person to manage fire risk, which in a kitchen includes grease in the extract. Many insurance policies also require TR19 adherence.
What is a WFTT or DTT grease test?
Grease thickness testing measures the layer of grease on the duct surfaces, using the Wet Film Thickness Test (WFTT) or Deposit Thickness Test (DTT). Each reading is recorded in microns.
What does TR19 mean?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping and expects a risk-based approach.
Are you accredited?
We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
Which kinds of sites do you work on?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, plus food production and leisure sites.
Can one contract cover all our sites?
Yes. Tell us the addresses and what each needs and you’ll get one fixed quote.
What your team can do, and what needs us
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.
Staff cleaning and specialist work are not the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
What affects the cost of TR19 inspection
We don’t publish a price list, because no two systems are the same. What we look at:
- When the work can happen, such as evenings, overnight or weekends
- Whether it’s a one-off visit or part of a schedule
- Whether we need access equipment or extra panels
- Whether several sites go on one quote
You won’t find a price list here, because the cost depends on the site in front of us. Call for a fixed quote, and we will talk you through it.
What to send for a quote
A few details help us quote accurately. When you get in touch, it helps to send:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Problems your staff have spotted
- Your opening hours and when the area is out of use
- Where the site is and what kind of site it is
There’s no standard price list, because no two systems are the same. We look at your system first, from pictures or on a visit, and then send you a fixed quote. To get going, ring 0345 646 2711 or send us an email.