Hertfordshire · TR19 inspections and grease testing
TR19 inspections in Thundridge
TR19 inspections and grease testing for Thundridge, with a survey first and a report with photos at the end. Ask us for a fixed quote.
- Heavy grease suspected in the plenum or ducts
- Kitchen extract systems with no recent grease readings
- Pre-clean surveys before a first TR19 clean
Keeping the system healthy
Looking after the system between visits is straightforward, and it helps at the next visit:
- Send TR19 audit reports to your insurer on request
- Keep grease filters clean and fitted properly
- Book the next test on the date in the report
- Don’t box in or cover duct access panels
Readings of 500 microns or more are highlighted as needing immediate spot cleaning, and we can arrange it.
Fit access panels where the survey finds sections can’t be reached, so every part of the duct can be cleaned.
TR19 inspection in Thundridge
A pre-clean survey looks at the whole system, from canopy to discharge. We check where the access panels are and whether every section can be reached, and record grease readings at set points. Common call-outs are for extracts that have never been grease tested and parts of the system left out of past cleans, on deposit thickness tests, insurer audits and access surveys.
Rural kitchens often have long, low duct runs through a roof space or along an outside wall, and those horizontal sections are where grease settles. Access, parking and timings are agreed before the day.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Location
- Thundridge (SG12)
- Region
- Hertfordshire
- Reporting
- Certificate plus before-and-after photos
- Quote
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
How the visit works
The first job on site is protection: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. It takes a couple of hours for a typical kitchen extract system, and we clear up before we go. Rural roads and tight entrances are worth telling us about before a visit to Thundridge.
- 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.
- We report the findings and flag any areas that need more work.
How to prepare
- Dig out any earlier paperwork for the system
- Tell us the best time to work, such as after service or at a weekend
- Mention any locked doors, roof access or ceiling voids
Ask for a quote
We don’t publish a price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, phone us on 0345 646 2711, or send details by email.
Advice
Leave it or put it right?
Surveying first means the clean goes to plan. Missing access panels, hidden duct runs and awkward fans are found before the cleaners arrive, and the quote reflects the real job. A fault that closes a site in a village like Thundridge affects everyone who depends on it.
Combining work into one visit or one programme often makes better use of the time. Tell us about everything you’d like looked at, and you’ll get one fixed quote.
Why choose Duct Doctor in Thundridge
- A fixed price before any work starts
- CHAS and SafeContractor accredited, with ISO 9001
- Every job surveyed first
- A single point of contact for sites across the South East and London
Read our cost guide and how to check a contractor.
Thundridge questions
Who carries out food hygiene inspections in Thundridge?
That is East Hertfordshire council, whose environmental health officers carry out food hygiene inspections in Thundridge. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
Can you get to a site in Thundridge?
Yes, Thundridge is part of our area, however small the site. Let us know about access, parking and anything unusual about getting there when you book.
What does TR19 inspection cost?
It depends on the site, so we quote each one individually. For a quote, call 0345 646 2711, or send details by email with the site type, opening hours and a few photos.
What do you do to protect the area?
Protection goes down first: floor sheeting and covers over nearby surfaces and equipment. We tidy up and take our waste away before we leave.
What happens to the waste?
It’s contained and taken away. Grease, debris and waste water are collected as the work goes on rather than letting it spread.
How do you measure grease in a kitchen extract?
WFTT and DTT are the two methods for measuring grease thickness, in microns. Readings are taken at set points through the system.
Can you price the work without visiting?
In many cases, yes. Photos of the system and the access, plus your opening hours and last report, are often enough. Larger or hidden systems need a survey on site first.
Which kinds of sites do you work on?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
What affects the quote in Thundridge
The price is fixed before any work begins. It’s based on:
- How big the system is
- Whether it’s a one-off visit or part of a schedule
- Parking and loading at the site
- When the work can happen, such as evenings, overnight or weekends
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.
Asking for a quote
What to send for a quote:
- Where the site is and what kind of site it is
- The roof, plant room or outside wall the system runs to
- Photos showing the whole system and its surroundings
- Your opening hours and when the area is out of use
Some systems can be priced from pictures; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
What we’re called out for in Thundridge
Menus, opening hours and cooking styles change over time, and more frying or longer hours mean more grease. The old cleaning schedule may not match the kitchen any more.
The symptoms we are asked about most are:
- Systems that need surveying before cleaning
- Cleaning intervals that may not suit the kitchen
- Sites with gaps in their extract records
- Missing access panels found on survey
For schools such as Thundridge Church of England Primary School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed.
Questions to ask before you book
- What insurance they carry
- Which accreditations they hold, and whether you can check them
- When the next visit should be, and why
- What’s included in the scope, part by part
Thundridge kitchens: local notes
Food Standards Agency records include about 3 bars, pubs and nightclubs and about 3 hotels, B&Bs and guest houses in Thundridge and the streets around it, up to about 1.5 miles out. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. In Thundridge, food businesses are inspected by environmental health officers from East Hertfordshire council. Extraction counts as kitchen equipment, so its condition can come up on the day. A TR19® certificate and photo report after each clean gives you a record to show an inspector. Thundridge sits within the area of Hertfordshire Fire and Rescue Service. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises.
Healthcare kitchens cannot easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Thundridge is Hertford County Hospital, about 3.6 miles south-west. If you run catering at a historic house or estate in the area (Much Hadham Palace is about 4.8 miles east), event kitchens in older buildings often have awkward duct runs that need planning.
Thundridge is about 1 mile north of Ware, in Hertfordshire. Whether your site is in the middle of Thundridge or further out, TR19 inspection is available to all kinds of commercial premises, from small sites to large estates. We cover 381 places across Hertfordshire, large and small. For sites nearby, see our London page (23 miles or so).
Every address in SG12 is within our area for TR19 inspection, from the main roads to the quietest streets. Local streets include Woodlands Road, Cold Christmas Lane and Ducketts Wood, and we cover them all for TR19 inspection. If your site is just outside Thundridge, we cover Wadesmill (1 mile north), Cold Christmas (1 mile east), High Cross (1 mile north), Ware (1 mile south) and Tonwell (2 miles west). Larger places within reach include Stevenage (8 miles north-west), St Albans (14 miles south-west), Bishop's Stortford (8 miles east), Welwyn Garden City (7 miles west), Harpenden (14 miles west) and Hitchin (13 miles north-west).
Near you in Thundridge
In Thundridge, that means kitchens and buildings near Sow & Pigs pub and The Chauncy School and the streets around them. For rail, the closest station is Ware station, roughly 1.8 miles south. Nearby you’ll also find Hertford County Hospital (3.6 miles south-west) and Barrowfield (2.5 miles south). Green spaces nearby include King's Meads.
Places near Thundridge
Also in Thundridge
Honest limits
An honest diagnosis matters more to us than a booking, so here’s what TR19 inspection won’t do:
- The responsible person’s own fire risk assessment
- Ductwork that was designed or installed badly
- Heavy deposits found on test, which still need cleaning
Not sure which it is? You can give us a ring on 0345 646 2711 or email us and we will tell you honestly.
Parts of the system we cover
- Insurer audits
- Wet film thickness tests
- Post-clean checks
- Pre-clean surveys
- Access surveys
- Deposit thickness tests
Managing agents and facilities teams in Thundridge
From a single site to a large estate, you get the same standard: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side and send the paperwork to whoever needs it.