Greater London · Ductwork cleaning
Duct cleaning in Pratt's Bottom
One call covers ductwork cleaning in Pratt's Bottom, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- A grease test showing the duct is overdue
- Grease pooling at the foot of the riser
- Grease leaking from duct joints
About our ductwork cleaning in Pratt's Bottom
Each extract duct we take on in Pratt's Bottom goes through the full routine: we test the grease first, remove thick deposits by hand and degrease what’s left. Readings are taken again afterwards and pictures go into your report. Common call-outs are for gaps where access panels were never fitted and a rancid smell from the extract duct, on vertical risers, multi-storey ducts and attenuators.
London kitchens are often tucked into basements or the back of a building, with extract ducts that can climb several floors to discharge at roof level. For a kitchen in Pratt's Bottom, that usually means a longer system to clean and more access panels to plan around.
We’ve been trading since 2009, as 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.
- Place
- Pratt's Bottom (BR6, TN14)
- Wider area
- Greater London
- Paperwork
- TR19® certificate and photo report
- Quote
- Fixed quote, normally within a working day
- When we work
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Leave it or put it right?
Grease left in a duct in Pratt's Bottom hardens over time. It bakes into a hard layer that takes far longer to remove, so the later the clean, the bigger the job. Shared walls, risers and roofs mean a problem at one London site seldom stays put.
A single site or a whole portfolio, the quote is built the same way: the work involved, the access and the timing. You’ll have a fixed price before we start.
What you get with us
- Each visit written up, with pictures
- A fixed price before any work starts
- Trading since 2009
- Out-of-hours work and a 24/7 emergency line
See our cost guide or our accreditations.
What we do, step by step
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool first, and floors and nearby surfaces are sheeted. On site, it takes a few hours for a short run, longer for long runs and tall risers. In Pratt's Bottom, as across London, we usually work overnight or at weekends and hand the site back ready to open.
- First we diagnose: the route, the access and the grease levels.
- You get a fixed price before work starts.
- Each section is cleaned in turn through its access panel.
- Bends, risers and the base of each riser get extra attention.
- The duct is signed off with readings, photos and a next clean date.
Getting ready for the visit
- Dig out any earlier paperwork for the system
- Mention any parking or loading restrictions
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
Get a fixed quote
There’s no standard price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, and then send you a fixed quote. To start, call us on 0345 646 2711 or use the quote form.
Related advice
Different parts, different methods
Access panels
Every section of duct is cleaned through an access panel. Where there are none, those sections can’t be cleaned and the report has to say so.
Vertical risers
Risers carry the extract up through the building to the roof. Grease runs down the walls and gathers at the base, which is one of the points we test.
Places near Pratt's Bottom
More services for Pratt's Bottom
Landlords, agents and facilities managers
Records are where multi-site compliance often slips. Each visit ends with a dated report and photos, ready to show insurers, fire officers or EHOs.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.
Between visits
Results last longer with the right care. We suggest:
- Check readings when the menu changes
- Store the certificate with the fire risk assessment
- Don’t block access panels with shelving or stock
- Report any grease dripping from duct joints
You will have a recommended date for the next clean, based on the readings and your daily cooking hours, in line with BESA guidance.
Keep to the cleaning interval on the report. A change in cooking hours may change the interval under BESA guidance, and grease thickness testing will show it.
What ductwork cleaning cannot fix
A few issues sit outside what this work can do:
- A failed fan motor at the end of the duct (a fan repair job)
- Duct sections that need replacing
- Ductwork that was poorly designed
If in doubt, give us a ring on 0345 646 2711, or send details by email and we will say what we think before you book.
What the work covers
- Attenuators
- Vertical risers
- Multi-storey ducts
- Access panels
- Horizontal duct runs
- Bends and junctions
Grease, kitchens and Pratt's Bottom
Food Standards Agency records include about 3 bars, pubs and nightclubs within roughly a mile and a half of the centre of Pratt's Bottom. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Most London extract cleaning happens at night, after the last service. The fire and rescue service for Pratt's Bottom is London Fire Brigade. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.
For schools such as Pratts Bottom Primary School, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed. If you cook for passing trade around Knockholt station, the extract can be cleaned between your last and first customer.
Pratt's Bottom is about 3 miles south of Orpington, in Greater London. Across the BR6 area, we can carry out ductwork cleaning at your premises. Pratt's Bottom is one of 764 places in Greater London where we work for ductwork cleaning. Our London page covers sites nearby, about 14 miles away.
Every address in BR6 and TN14 is covered for ductwork cleaning, from busy streets to back roads. Streets in the area include Orchard Road, Runciman Close and Downs View Close, all of which we cover for ductwork cleaning. If your site is just outside Pratt's Bottom, we cover Halstead (1 mile south-east), Chelsfield (1 mile north-east), Bopeep (1 mile north-east), Badgers Mount (1 mile east) and Maypole (1 mile north-east). Within a short drive, we also cover London (14 miles north-west), Shoreditch (15 miles north-west), Whitechapel (14 miles north-west), Stockwell (13 miles north-west), Orpington (3 miles north) and Wimbledon (15 miles west).
Landmarks near Pratt's Bottom
We work in commercial kitchens and buildings around Hewitt's Chalk Bank and Green Street Green Primary School. Pratt's Bottom’s nearest station is Knockholt station, roughly 0.8 miles east of the centre. A little further out are Crofton Roman Villa (2.4 miles north-west) and Lullingstone Castle (3.8 miles east). Open spaces near Pratt's Bottom include Betsom's Hill and Downe Bank Nature Reserve.
Pratt's Bottom questions
Can school kitchens in Pratt's Bottom be cleaned in the holidays?
Yes. Half-terms and the summer break are the natural time for school work. With about 3 schools and colleges on the FSA’s register within roughly a mile and a half of Pratt's Bottom, it pays to plan holiday dates ahead. Send us your term dates when you call us on 0345 646 2711 or use the quote form, and we will fit the work in.
Is parking a problem for work in Pratt's Bottom?
We plan it in advance, so let us know about loading bays, permits and access rules at the building. Working overnight, as we often do in London, usually makes it simpler.
What is TR19?
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.
Can you fit access panels in our ductwork?
Yes, we do. We’ll point out where panels are needed, and fitting them means future cleans are more complete.
What if part of the duct cannot be reached?
Ductwork needs access to be cleaned. We record those sections on the report and can fit access panels.
Do you cover Pratt's Bottom?
Yes. Our technicians work in Pratt's Bottom, as part of our area across London and the South East.
How often should kitchen ducts be cleaned?
The minimum depends on how long the kitchen cooks each day: every 3 months for 12 to 16 hours, 6 months for 6 to 12 hours and 12 months for 2 to 6 hours. Measured grease sets the real interval.
What if parts of the system can’t be reached?
Anything we can’t reach goes on the report, with pictures where possible, and we explain what access is needed, such as extra access panels in ductwork.
What we’re called out for in Pratt's Bottom
Wherever the kitchen is, in Pratt's Bottom or elsewhere, the duct fills in the same way: daily cooking hours, the menu and the state of the filters. BESA guidance sets minimum intervals of 3, 6 or 12 months depending on daily use.
If you notice any of these, it’s worth a diagnosis:
- Grease pooling at the foot of the riser
- Gaps where access panels were never fitted
- Fat dripping from the ductwork
- A rancid smell from the extract duct
If you run catering at a healthcare site, such as a hospital like Orpington Hospital about 1.6 miles north-west, the extract may need cleaning more often than a part-time kitchen.
Questions to ask before you book
- What insurance they carry
- Whether the quote is based on a survey or photos
- How they set the interval to the next visit
- Which accreditations they hold, and whether you can check them