Hertfordshire · TR19 inspections and grease testing
Mackerye End TR19 inspection
TR19 inspections and grease testing for Mackerye End, with a survey first and a report with photos at the end. Ask us for a fixed quote.
- Pre-clean surveys before a first TR19 clean
- Missing access panels found on survey
- Kitchens whose menu or hours have changed
How it 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. Somewhere like Mackerye End, lanes, gates and parking are worth mentioning in advance.
- First we book a time that won’t disrupt cooking.
- The system is checked from canopy to discharge.
- We take WFTT or DTT readings at set points along the system.
- We photograph the test points and record any sections we cannot reach.
- The findings go into a report with readings, pictures and a recommended next clean.
How to prepare
- Let us know how we reach the system, including roofs, risers and plant rooms
- Mention any sign-in, permit or induction we need
- Clear loose items from the work area
Getting a quote
Quoting starts with a diagnosis, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work, before we start.
Advice
How we handle TR19 inspection in Mackerye End
After a clean, post-clean verification checks the result, with new readings and photos of the cleaned areas. It gives you evidence of how the system was actually left. Typical jobs include post-clean verification after another contractor’s clean and systems that need surveying before cleaning, on access surveys, pre-clean surveys and deposit thickness tests.
Somewhere as small as Mackerye End, commercial kitchens are few: perhaps a pub, a school or care home kitchen, or a hall used for events. Every one of them still needs its extract kept clear of grease, whatever the size of the place.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we are fully insured.
- Where
- Mackerye End (AL5)
- Region
- Hertfordshire
- Reporting
- Certificate plus before-and-after photos
- Price
- A fixed quote up front
- Hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
What happens if it’s left?
Catching heavy deposits early keeps the fix small. Ignored, the layer only gets thicker. If the system at a site near Mackerye End fails, there may be nowhere nearby to move to.
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, which can make the next visit longer. If you are not sure what’s needed, phone us on 0345 646 2711, or send details by email and we will give you an honest view and a fixed quote.
Why choose Duct Doctor in Mackerye End
- Every job surveyed first
- In business since 2009
- Out-of-hours work and a 24/7 emergency line
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
Take a look at what affects the cost and our accreditations.
Managing agents and facilities teams in Mackerye End
If you look after several sites, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so each one has its own record.
Running several sites is easier with one contractor. We work across London and the South East, so visits at different addresses can be planned together and kept on a regular cycle.
What the work involves, part by part
Canopy and plenum
Clean-looking filters don’t mean a clean plenum. That’s why we test behind them.
Horizontal duct runs
Bends and long runs can hold heavy deposits, well away from where anyone looks.
Mackerye End kitchens: local notes
Food Standards Agency records list about 3 restaurants, cafés and works canteens within 1.5 miles or so of the middle of Mackerye End. A WFTT or DTT reading tells each of those kitchens whether its grease is staying under the 200-micron mean. Kitchens in Mackerye End get their food hygiene inspections from St Albans City council. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. A TR19® certificate and photo report after each clean gives you a record to show an inspector. Fire safety in Mackerye End falls to 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.
Term dates shape school work: for a school like Sauncey Wood Primary School, an extract clean fits neatly into a half-term or summer break. If you run catering at a healthcare site, such as a hospital like St Albans City Hospital about 4.8 miles south, the extract may need cleaning more often than a part-time kitchen.
Mackerye End is about 1 mile north-east of Harpenden, in Hertfordshire. Whatever kind of site you run in Mackerye End, TR19 inspection is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Across Hertfordshire, we cover 381 places, Mackerye End among them. Our Milton Keynes page covers sites nearby (24 miles or so).
Work in AL5 is surveyed, quoted and booked the same way as anywhere else. Neighbouring places we cover for TR19 inspection include Lea Valley (1 mile south), Porter's End (1 mile north), The Folly (1 mile south-east), Blackmore End (1 mile north-east) and Bower Heath (1 mile north-west). Larger places within reach include Watford (12 miles south), Hemel Hempstead (8 miles south-west), Stevenage (8 miles north-east), St Albans (5 miles south), Welwyn Garden City (6 miles east) and Hitchin (9 miles north).
Landmarks near Mackerye End
We work in commercial kitchens and buildings around The Cherry Trees pub, Sir John Lawes School and Lydekker Park. The closest station to Mackerye End is Harpenden station, roughly 1.7 miles south-west. A little further out are St Albans City Hospital (4.8 miles south) and Harpenden Museum (1.9 miles south-west). For a walk, there’s Wheathampstead Local Nature Reserve.
Towns and villages near Mackerye End
More services for Mackerye End
How we price TR19 inspection
The price is fixed before any work begins. It takes into account:
- A single visit or a regular plan
- Site rules, permits and inductions
- Where the site is and how we reach it
- Whether several sites go on one quote
You will not find a price list here, because the cost depends on the site in front of us. Call for a fixed quote, and we will explain what it covers.
Asking for a quote
You do not need the technical terms. Just send:
- How we’d reach plant on a roof or in a plant room
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- The paperwork from the last visit, if you have it
- Wide photos of the system and the area around it
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, you get a fixed price before work begins.
Aftercare tips
Looking after the system between visits is straightforward, and it helps at the next visit:
- Do not box in or cover duct access panels
- Keep grease filters clean and fitted properly
- Keep TR19 certificates, readings and reports together
- 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.
Fit access panels where the survey finds sections cannot be reached, so every part of the duct can be cleaned.
Signs you need TR19 inspection in Mackerye End
When a site in Mackerye End changes owner or cleaning contractor, the records do not always follow. Without them, nobody knows how much grease is in the system or when it was last cleaned.
Clients usually contact us when they notice one of these:
- Ductwork where grease may be over the TR19 limits
- Confirming a clean reached the whole system
- Sections of duct that cannot be reached
- An insurer’s request for a TR19 audit
Where a hall near All Saints, or anywhere in Mackerye End, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Comparing quotes
- Whether the quote shows VAT
- Whether they’re fully insured
- Whether a written report and photos are included
- What’s included in the scope, part by part
Your questions about TR19 inspection in Mackerye End
Who enforces fire safety at workplaces in Mackerye End?
Fire safety enforcement in Mackerye End is handled by Hertfordshire Fire and Rescue Service. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
Who would carry out a food hygiene inspection at a kitchen in Mackerye End?
The local authority for Mackerye End is St Albans City council, and its environmental health team does the inspecting. It helps to keep the extract cleaning records with your food safety paperwork, so they’re ready if asked for.
What types of premises do you cover?
Any commercial site with kitchens or ventilation, from a single café to a large school. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
What information do you need?
The site address, the type of premises and your opening hours, plus photos of the system and your last certificate or report if you have one.
Do you look at the system first?
Yes. Every job is surveyed first, either from pictures and details you send or on a site visit. Then you get a fixed quote.
How often should grease be tested?
Each report recommends when to test and clean next, based on the readings and how the kitchen is used. A risk assessment based on measured grease should set the interval.
How much notice do you need?
For planned work, earlier is better, particularly if your next visit is nearly due. For emergencies, we take calls 24/7.
What does a pre-clean survey involve?
A survey finds out how the system is laid out, how dirty it is and what can be reached, before anyone starts cleaning. Missing access panels are noted so they can be sorted first.