Hertfordshire · TR19 inspections and grease testing
Coleman Green TR19 inspection
TR19 inspections and grease testing for businesses, landlords and public buildings in Coleman Green. CHAS, SafeContractor and ISO 9001, and fully insured.
- Extracts that have never been grease tested
- Pre-clean surveys before a first TR19 clean
- Confirming a clean reached the whole system
TR19 inspection in Coleman Green, done properly
Before any clean in Coleman Green, we survey the canopy, plenum, filters, ducts, fan and discharge. We check where the access panels are and whether every section can be reached, and record grease readings at set points. The work covers access surveys, post-clean checks and wet film thickness tests, and the jobs we see most are uncertainty over how often to clean and sites with gaps in their extract records.
In a village or hamlet like Coleman Green, the kitchens that need extract cleaning are normally a pub, a school, a care home or a hall kitchen, wherever there is one. Each still has a canopy and duct that collect grease.
Duct Doctor has been trading since 2009, and we’re 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.
- Where
- Coleman Green (AL4)
- Region
- Hertfordshire
- Paperwork
- Certificate and photo report
- Price
- A fixed price before any work starts
- Hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Updated
- 30 October 2026
When it’s something else
TR19 inspection cannot fix everything, and we will tell you before work begins. It won’t put right:
- Ductwork that was designed or installed badly
- Fire safety duties beyond the extract system
- Hidden runs that need access panels first
Not sure which it is? You can call us on 0345 646 2711 or send us an email and we will tell you honestly.
What the work covers
- Insurer audits
- Wet film thickness tests
- Deposit thickness tests
- Pre-clean surveys
- Access surveys
- Post-clean checks
Coleman Green: your questions answered
Do you work at weekends in Coleman Green?
Yes, nights and weekends are routine for us. The site is handed back ready to open. Just give us a ring on 0345 646 2711 or send us an email with your opening times and we’ll plan around them.
Do you work in villages like Coleman Green?
Yes, Coleman Green is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.
Is TR19 cleaning the law?
No. It’s the benchmark rather than the law. Without TR19 records, an insurance claim can be reduced or refused, so following it is the sensible course.
What types of premises do you cover?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
How much does TR19 inspection cost in Coleman Green?
Size, condition, access and working hours all affect the cost. Call for a fixed quote and we’ll normally reply within one working day.
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. Then call us on 0345 646 2711 or email us.
How much notice should we give?
That depends on the slot you want and the size of the job. Tell us your preferred dates when you ask for a quote, and if it’s an emergency, call us any time.
At what point does grease need cleaning?
TR19® Grease says the mean shouldn’t exceed 200 microns between cleans, and anywhere at 500 microns or more needs spot cleaning right away.
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 it goes on the report too. All told, the work takes a morning or less for one kitchen, more where there are several systems. Somewhere as small as Coleman Green, the date and timings are agreed with you well before the day.
- First we look at the system’s cleaning history, if there is one.
- We follow the extract from canopy to discharge.
- We note where access panels are and where more are needed.
- Grease readings are taken and photos recorded.
- You get a report and a fixed quote for the clean.
Preparing for the visit
- Plan for cooking equipment or plant to be off before we arrive
- Dig out any earlier paperwork for the system
- Let us know about parking and loading
How to get a quote
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and many jobs can be priced from that alone.
Related advice
Kitchen extracts in Coleman Green
Food Standards Agency records list about 11 restaurants, cafés and canteens across Coleman Green and its immediate surroundings (about a mile and a half). Each kitchen extract among them can be measured for grease to set the right cleaning interval. Hertfordshire Fire and Rescue Service covers Coleman Green. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel. Environmental health officers from St Albans City council inspect food businesses in Coleman Green. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. A dated certificate in the maintenance file answers the question before it’s asked.
A hospital like Hill End Hospital, about 3.6 miles south, is the kind of site where a kitchen may cook for patients, staff and visitors all day. Shaw's Corner, about 2.5 miles north, is one of the historic houses near Coleman Green; if you run event catering at a venue like that, cleans can be booked between functions.
Coleman Green is about 3 miles north-west of Hatfield, in Hertfordshire. Across the AL4 area, we can take on TR19 inspection. Our area takes in 381 places across Hertfordshire, large and small. There’s also a page for London, roughly 22 miles from Coleman Green.
Our technicians cover all of AL4 for TR19 inspection and the streets around it. Streets in the area include Coleman Green Lane and Darblay Close, and we cover them all for TR19 inspection. We also cover Cooper's Green (2 miles south), Lemsford (2 miles east), Jersey Farm (2 miles south-west), Stanborough (2 miles east) and Smallford (3 miles south). We also work in nearby towns such as Watford (11 miles south-west), Hemel Hempstead (8 miles west), Stevenage (9 miles north-east), St Albans (4 miles south-west), Welwyn Garden City (4 miles east) and Harpenden (3 miles north-west).
Landmarks near Coleman Green
Locally, jobs take us to businesses close to Sandringham School and John Bunyan pub, among other places. The nearest railway station is Welwyn Garden City station, about 3.1 miles east. Other landmarks nearby include Howard Centre (3.1 miles east) and The Bunker at Hatfield Police Station (2.8 miles south-east). The countryside around Coleman Green includes Wheathampstead Local Nature Reserve and Verulamium Lake.
Part by part
Vertical risers
Risers carry the extract up through the building. Grease can run down and collect at the base, so we check there.
Canopy and plenum
The canopy itself is checked inside and out, with readings where grease collects.
Also near Coleman Green
More services for Coleman Green
Signs you need TR19 inspection in Coleman Green
Insurers, fire officers and environmental health officers look to TR19® as the benchmark. 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.
If you notice any of these, it’s worth a diagnosis:
- Confirming a clean reached the whole system
- Kitchens whose menu or hours have changed
- Systems cleaned on a calendar with no measurements
- An insurer’s request for a TR19 audit
Term dates shape school work: for a school like Beech Hyde Primary School and Nursery, an extract clean fits neatly into a half-term or summer break.
Comparing quotes
- Proof of insurance
- Whether a survey comes first
- Whether they recommend a next date
- When they can work, and whether that is outside your opening hours
Managing agents and facilities teams in Coleman Green
Whether it’s one building or many, the standard is the same: diagnosis, a fixed price, work booked around your hours and a written report with pictures.
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.
Looking after it afterwards
How long the results last depends on use and care. We suggest:
- Flag changes in how much frying the kitchen does
- Keep canopy edges and gutters wiped down
- Clean or swap grease filters as often as the kitchen needs
- Have the latest report ready for insurance renewals
You get a report with the grease readings, where they were taken and photos of each point. Keep it with your fire safety and TR19 records.
Revisit the cleaning interval whenever the menu or hours change. Fresh readings show whether it needs to change.
Leave it or put it right?
Catching heavy deposits early keeps the fix small. Ignored, the layer only gets thicker. Equipment tucked in a roof space or outbuilding near Coleman Green rarely gets looked at unless someone books it.
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before work begins.
Why book with us
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Trading since 2009
- Fixed quotes, typically within one working day
- One contact for all your sites in London and the South East
Take a look at our cost guide and our accreditations and certificates.