Greater London · Ductwork cleaning
Duct cleaning in Keston
Cleaning of kitchen extract ductwork, horizontal runs and vertical risers through access panels for commercial sites in Keston and across Greater London. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Grease seeping out of the duct seams
- Duct runs that can’t be reached
- Duct runs with no cleaning record
How we handle ductwork cleaning in Keston
Nobody sees duct grease building, so nobody notices it until something goes wrong. A flare-up drawn up from the range can light it, and fire can then run along the ductwork to other parts of the building. Removing it is the whole point. Typical jobs include ductwork that has never been cleaned and duct runs that can’t be reached, on vertical risers, attenuators and bends and junctions.
In a London area like Keston, a kitchen extract often passes through shared space on its way out: a riser, a service void, the floors above. A duct fire there can reach parts of the building far from the range, so a regular TR19® clean protects everyone in it.
Think of the report as the system’s health record: dated, with pictures, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Location
- Keston (BR2)
- Region
- Greater London
- Paperwork
- TR19® certificate and photo report
- Quotes
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
What staff can safely do
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We’ll take a look and give you a fixed quote.
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. That part needs specialist access and equipment.
Places near Keston
Also in Keston
Part by part
Attenuators and discharge
The last section of duct before the discharge is often the coolest, so it can collect more grease than expected. It’s tested and cleaned along with the rest.
Horizontal duct runs
A long flat run cannot be cleaned from one end. Where the gaps between panels are too long, we record what couldn’t be reached and can fit extra panels.
The process
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and the same goes into the written report. The visit takes a shift or more, depending on the length of the runs and the number of access points. Security desks and permits-to-work are routine in London, so let us know what your building in Keston needs from us.
- First we diagnose: the route, the access and the grease levels.
- A fixed quote follows, based on what we found.
- Each section is cleaned in turn through its access panel.
- We take extra care at bends and at the foot of risers.
- Readings, pictures and a recommended next clean date complete the job.
How to prepare
- Allow time for equipment near the work to be turned off and cool down
- Tell us where we can park and unload
- Tell us the best time to work, such as after service or at a weekend
Get a fixed quote
Quotes are quick. Call or email with a few details and you’ll usually have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
Read more
Keston kitchens: local notes
Look up Keston on the FSA’s food hygiene register and you’ll find about 15 restaurants, cafés and canteens and about 5 takeaways within roughly a mile and a half of the centre of Keston. Where they cook under a canopy, grease doesn’t stop at the filters: it settles along the duct and up the riser. Food hygiene inspections in Keston are the job of Bromley council’s environmental health team. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Before-and-after pictures from each clean are a simple way to show the extract is in hand. The fire and rescue service for Keston is London Fire Brigade. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk.
Bursars and site managers at schools such as Keston Church of England Primary School tend to book extract cleaning for when the kitchen is empty. If your kitchen is in a listed or historic building, like the houses around Keston (Down House is about 2.2 miles south-east), fitting access panels needs care.
Keston is about 3 miles south of Bromley, in Greater London. If you need ductwork cleaning in Keston, please give us a ring on 0345 646 2711 or email us for a fixed quote. Our area covers London and the South East, Keston included. Our area takes in 764 places across Greater London, from busy centres to quieter spots. There’s also a page for London, about 11 miles away.
We work across the BR2 postcode area for ductwork cleaning and the streets around it. Local streets include Church Road, Greys Park Close and Heathfield Road, and we cover them all for ductwork cleaning. We also cover the places around Keston: Nash (1 mile west), Farthing Street (1 mile south-east), Locksbottom (1 mile north-east), Leaves Green (2 miles south) and Hayes (2 miles north-west). Further out, we also cover London (11 miles north-west), City of Westminster (13 miles north-west), Marylebone (13 miles north-west), Kensington (14 miles north-west), St Pancras (13 miles north-west) and Shoreditch (12 miles north).
Landmarks near Keston
Around Keston, our work takes us to kitchens and buildings near South Park, Ravens Wood School and The Greyhound pub and the streets around them. Keston’s nearest station is Hayes (Kent) station, roughly 1.5 miles north-west of the centre. Well-known places in the area include Princess Royal University Hospital (1.1 miles east) and Bethlem Museum of the Mind (1.5 miles north). Not far away are West Kent Golf Course nature reserve and Summer Hill.
Leave it or put it right?
Grease narrows the duct and slows the air. The fan works harder, the kitchen gets hotter and smoke lingers at the canopy, and grease may start to leak from joints. A booked night’s work in Keston costs you no trading time; an unplanned closure does.
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. You’ll have a fixed price before work begins.
Why book with us
- In business since 2009
- Fully insured
- One number for every site across the South East and London
- Fixed quotes from a survey or photos
Signs you need ductwork cleaning in Keston
A duct with too few access doors cannot be fully cleaned. Stretches with no way in may never have been touched, and the grease there keeps building out of sight.
Any of these means the system needs a check-up:
- Heavy grease at the base of a riser
- Years of grease along the duct floor
- Readings above 200 microns from a grease thickness test
- Duct runs with no cleaning record
Where a hall near Keston Parish Church, or anywhere in Keston, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
What your quote should include
- Whether the figure could change on the day
- Whether the whole system is included, or only the parts that are easy to reach
- Whether they recommend a next date
- Whether the quote is based on a survey or photos
Questions from Keston
Can parking be tricky for a job in Keston?
We plan it in advance, so let us know about loading bays, permits and access rules at the building. Night visits tend to make loading easier on London streets.
Who is the fire and rescue service for Keston?
Fire safety enforcement in Keston is handled by London Fire Brigade. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
How can I tell if my extract ducts are dirty?
A grease thickness test gives the answer. Readings are taken by Wet Film Thickness Test (WFTT) or Deposit Thickness Test (DTT). A mean above 200 microns, or 500 microns at any point, means it’s due.
Do you offer emergency callouts?
Yes, day and night, every day of the year. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
Can one contract cover all our sites?
Yes. We work across South East England and London, so sites at different addresses can be planned together as one programme. Each site gets its own report and pictures.
How long does it take to clean extract ducts?
It takes a shift or more, depending on the length of the runs and the number of access points. We’ll confirm the time when we quote.
Which sectors do you work in?
All kinds of commercial and public premises: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. Work is timed around how each site runs.
How do you protect the area?
We start with protection: floor sheeting and covers over nearby surfaces and equipment. The area is left tidy, with our waste taken away.
What affects the quote in Keston
We quote each job individually. This is what makes a difference:
- The number of sites or systems
- The times the site is available
- How easy every part is to reach
- One-off work versus a regular cycle
The price reflects the work, not guesswork. That’s why every job is surveyed first, and the price is agreed before we start.
What we need to know
There’s no need for technical detail. It helps if you can send:
- Photos showing the whole system and its surroundings
- The roof, plant room or outside wall the system runs to
- Where the site is and what kind of site it is
- Detail shots of panels, filters and grilles
Every quote begins with a look at the system, from your pictures and details or, where that is not enough, a survey on site. Then we send a fixed price, before any work starts.
Between visits
Results last longer with the right care. Here’s what we suggest:
- Make sure filters are seated properly
- Diarise the next duct clean
- Store the certificate with the fire risk assessment
- Report any grease dripping from duct joints
Grease readings are taken again at the same set points, so the report shows the before and after figures. Before and after photos sit next to the numbers.
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.