Greater London · TR19 inspections and grease testing
TR19 inspections and grease testing in Peaks Hill, Greater London
Professional TR19 inspection in and around Peaks Hill, timed so the site keeps working and finished with a written report and photos.
- Kitchens taken over with no cleaning records
- Extracts that may be over the 200 micron mean
- Kitchens whose menu or hours have changed
About our TR19 inspection in Peaks Hill
Under TR19® Grease, the mean grease thickness should stay at or below 200 microns between cleans, while a reading of 500 microns or more anywhere calls for immediate spot cleaning. Testing is how you know where your system stands. The work covers deposit thickness tests, pre-clean surveys and wet film thickness tests, and people most often call us about uncertainty over how often to clean and sections of duct that can’t be reached.
London kitchens tend to trade late and open early, so work in Peaks Hill is normally booked for the night or the early hours. Before the clean, we agree loading, parking and roof access with whoever manages the building.
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, and we are fully insured.
- Location
- Peaks Hill (CR8, SM6)
- Region
- Greater London
- Reporting
- Certificate and photo report
- Price
- A fixed quote up front
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Checked
- 30 October 2026

Leave it or put it right?
Without readings, you are guessing when to clean. If grease reaches 500 microns anywhere, TR19® Grease calls for immediate spot cleaning, which you won’t know without measuring. Choosing the date yourself beats having a fault choose it for you.
What you pay depends on the size of the system, what state it’s in and access to every part of it. We give you a fixed price before work begins, so you know where you stand.
Why choose Duct Doctor in Peaks Hill
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- We diagnose before we treat
- Accredited under CHAS and SafeContractor, with ISO 9001
- A single point of contact for sites across the South East and London
Staff cleaning versus specialist work
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
Towns and villages near Peaks Hill
What else we do in Peaks Hill
The process
We turn up at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool first, and floors and nearby surfaces are sheeted. The work itself takes a morning or less for one kitchen, more where there are several systems. For a job in Peaks Hill, tell us about loading bays, permits, lifts and roof access when you book.
- After the clean, we arrange a time to check the system.
- The same access points are opened up.
- We repeat the WFTT or DTT readings.
- We photograph each area to record how it was left.
- We report the findings and flag any areas that need more work.
Getting ready for the visit
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Clear loose items from the work area
- Mention any parking or loading restrictions
Get a fixed quote
Some systems can be priced from photos; others need a survey. 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.
Advice
Between visits
A little care between visits keeps the system in better shape. We recommend:
- Share inspection reports with your insurer or broker when asked
- Report grease dripping from the canopy
- Flag changes in how much frying the kitchen does
- Keep TR19 certificates, readings and reports together
If any reading is 500 microns or more, the report flags it for immediate spot cleaning, and we can arrange it.
Regular grease readings keep the cleaning interval honest. It shows if build-up is speeding up.
Peaks Hill: your questions answered
Which fire service covers Peaks Hill?
Peaks Hill is in the area of London Fire Brigade. TR19® isn’t law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
Can school kitchens in Peaks Hill be cleaned in the holidays?
Yes, holiday work suits schools best. Food Standards Agency records list about 24 schools, colleges and universities with registered kitchens within about a mile and a half of Peaks Hill. You can phone us on 0345 646 2711, or email photos with the dates the site is empty.
What’s TR19?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Do you offer maintenance contracts?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, depending on what the system needs.
What about areas you can’t get to?
They’re marked on the report. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
Which sectors do you work in?
All kinds of commercial and public premises: kitchens, offices, schools, healthcare, retail, leisure and food production. Work is timed around how each site runs.
What is grease thickness testing?
Readings are taken using the Wet Film Thickness Test or the Deposit Thickness Test, then compare them with the TR19® Grease figures.
What accreditations do you have?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We’ve been trading since 2009 and we’re fully insured.
How we price TR19 inspection
Before we fix a price, we need to know a few things. We check:
- Site requirements such as sign-in and permits
- A single visit or a regular plan
- Whether we need access equipment or extra panels
- What state the system is in
What you pay reflects the actual work. That’s why we survey first, from photos or on site, and why the quote is fixed before any work starts.
What to send for a quote
When you call or email, these details help:
- A few general shots of the system
- Problems your staff have spotted
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Detail shots of panels, filters and grilles
Quotes are quick. Call or email with a few details and you’ll typically have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
Part by part
Restaurants, pubs and hotels
BESA’s minimum for heavy use of 12 to 16 hours a day is a clean every 3 months, with testing showing whether more is needed.
Vertical risers
Access to risers is often limited. The survey shows exactly what access there is.
Grease, kitchens and Peaks Hill
The FSA’s food hygiene register shows about 102 restaurants, cafés and canteens and about 73 takeaways and sandwich shops within about 1.5 miles of central Peaks Hill. Where they cook under a canopy, a grease reading is the way to tell whether the extract is due a clean. Kitchens in Peaks Hill get their food hygiene inspections from Croydon council. Extraction counts as kitchen equipment, so its condition can come up on the day. A dated certificate in the maintenance file answers the question before it’s asked. London Fire Brigade covers Peaks Hill. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract.
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Purley War Memorial Hospital is the nearest hospital to Peaks Hill, about 0.7 miles east. Volunteers running a hall kitchen near Church of St Mark, or anywhere in Peaks Hill, may not know when the extract was last cleaned, and a grease test settles it. Commuter trade near Purley station can mean long cooking hours, and long hours put a kitchen into BESA’s more frequent cleaning bands.
Peaks Hill is about 1 mile north-west of Purley, in Greater London. If you need TR19 inspection in Peaks Hill, please give us a ring on 0345 646 2711 or email us for a fixed quote. Our area covers London and the South East, Peaks Hill included. Our area takes in 764 places across Greater London, large and small. London is in our area too, about 11 miles from Peaks Hill.
Postcode districts we cover here for TR19 inspection: CR8 and SM6. TR19 inspection is available to premises on Furze Lane, Birch Lane and Plough Lane and nearby roads. With the A2022 close by, Peaks Hill is easy for our technicians to reach at any hour. Close by, we work in Russell Hill (1 mile north), Roundshaw (1 mile north), Woodcote (1 mile south-west), Purley (1 mile south-east) and Woodcote Green (1 mile west). Within a short drive, we also cover London (11 miles north), City of Westminster (12 miles north), Marylebone (12 miles north), Kensington (11 miles north), St Pancras (13 miles north) and Shoreditch (13 miles north).
What’s near Peaks Hill
Around Peaks Hill, our work takes us to kitchens and buildings near Carshalton Park, Margaret Roper Catholic Primary School and The Foxley Hatch pub and the streets around them. Peaks Hill’s nearest station is Purley station, about 0.8 miles south-east. A little further out are St George's Walk (2.4 miles north-east) and Croydon Airport Visitor Centre (1 mile north-east). The countryside around Peaks Hill includes Duppas Hill and Roundshaw Downs.
For landlords and multi-site operators
When the building owner and the occupier are different, the lease normally sets out who maintains what. We can quote either party, and the report can go to both.
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so each one has its own record.