Greater London · Ductwork cleaning
Force Green ductwork cleaning
Cleaning of kitchen extract ductwork, horizontal runs and vertical risers through access panels for commercial sites in Force Green and across Greater London. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Duct runs that can’t be reached
- Thick crusts of old grease along the duct
- Readings above 200 microns from a grease thickness test
Ductwork cleaning in Force Green
Every duct has its own route. A few metres to an outside wall, or a riser up through the building to a roof fan. We map the route during the survey and finds every access point before we quote. If you have readings above 200 microns from a grease thickness test and grease leaking from duct joints, we can help, from multi-storey ducts, bends and junctions and vertical risers onwards.
In London, few kitchens can spare a day to close, so extract cleaning in Force Green is typically done overnight, after the last service. Parking, loading and access to the roof are agreed with the building before the night of the clean.
Each visit ends with a written report and pictures, so there’s a dated record of the work. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Where
- Force Green (TN16)
- Wider area
- Greater London
- Records
- TR19® certificate and photo report
- Price
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
What we’re called out for in Force Green
A duct with too few access doors can’t be fully cleaned. Sections between panels go uncleaned, sometimes since the system was installed, and grease there keeps thickening unseen.
These are the problems we see most often:
- Readings above 200 microns from a grease thickness test
- Gaps where access panels were never fitted
- Ductwork that has never been cleaned
- A rancid smell from the extract duct
Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Quebec House is about 0.8 miles south), access may need planning.
Before you book anyone
- What insurance they carry
- What hours they’ll be on site
- Proof of accreditation you can verify
- What paperwork you get at the end
Questions from Force Green
Which environmental health team covers Force Green?
Food hygiene inspections in Force Green are carried out by Sevenoaks council. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
Do you work at weekends in Force Green?
Yes, out-of-hours work is a big part of what we do. Your customers, staff or residents in Force Green needn’t be disturbed. Your opening times are the first thing we ask for.
How much notice do you need?
The more notice, the better, particularly for night and weekend visits. Quotes usually come back within one working day, and there’s a 24/7 line for emergencies.
Who is responsible for fire safety on the premises?
The law calls them the responsible person. That is generally the employer or the person in control of the premises, and in shared buildings more than one person can have duties. Your lease and fire risk assessment should make it clear.
Do you have a 24/7 line?
Yes. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line and we will talk you through the next steps.
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.
Do you install duct access panels?
Yes, we install duct access panels. We place them where they help most, and we’ll recommend where.
Will we have to shut during the visit?
Not usually. The area we’re working in has to be out of use while we are there, so the visit goes in a quiet slot.
When it’s something else
In fairness, some problems need a different fix:
- Faulty fire dampers
- Undersized or badly laid-out ducts
- A worn-out fan that needs replacing
Not sure which it is? You can call 0345 646 2711 or send us an email and we will tell you honestly.
Parts of the system we cover
- Horizontal duct runs
- Attenuators
- Multi-storey ducts
- Bends and junctions
- Vertical risers
- Access panels
What happens if it’s left?
BESA guidance says grease shouldn’t exceed a mean of 200 microns between cleans. Anywhere that reaches 500 microns or more needs immediate spot cleaning. Putting off the clean only pushes readings higher. In a London building, a problem in a duct, damper or fan rarely stays in one unit.
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we’ll explain each part.
Why Force Green businesses choose us
- We’re fully insured
- Trading since 2009
- Survey first, then a fixed quote
- CHAS, SafeContractor and ISO 9001
See how cleaning jobs are priced and how to check a contractor.
Keeping the system healthy
Looking after the system between visits is straightforward, and it makes the next visit easier:
- Check readings when the menu changes
- Keep access panels clear of stored items
- Keep grease filters clean and fitted whenever you cook
- Keep your cleaning records together
You will have a recommended date for the next clean, based on the readings and your daily cooking hours, in line with BESA guidance.
Some signs mean the duct needs attention sooner: drips from the ductwork, stale smells or a noisy fan. A grease thickness test can confirm whether a spot clean is needed.
Places near Force Green
What else we do in Force Green
The process
Before we leave, we walk the area with whoever is on site. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. All told, the work takes from a few hours to more than one visit, depending on duct length and access. Night and weekend working is normal for us in London, and a site in Force Green is no exception.
- 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.
- We take extra care at bends and at the foot of risers.
- Readings, photos and a recommended next clean date complete the job.
How to prepare
- Tell us where we can park and unload
- Make sure someone can let us in and lock up afterwards
- Have your last certificate or report to hand
Getting a quote
Quoting starts with a diagnosis, from your pictures and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work, before any work starts.
Advice
Force Green kitchens: local notes
Look up Force Green on the FSA’s food hygiene register and you’ll find about 19 cafés, restaurants and staff canteens and about 10 takeaways and sandwich shops in Force Green and the streets around it, up to about 1.5 miles out. Wherever those kitchens cook under a canopy, the horizontal runs and risers need cleaning as well as the hood. In Force Green, food businesses are inspected by environmental health officers from Sevenoaks council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. A dated certificate in the maintenance file answers the question before it’s asked. The fire and rescue service for Force Green 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.
Church and community hall kitchens, near Church of St Mary the Virgin or anywhere around Force Green, are easy to forget, but their extracts collect grease like any other. Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Force Green is Tandridge Priory, about 2.7 miles south-west.
Force Green is about 5 miles west of Sevenoaks, in Greater London. We provide ductwork cleaning for businesses, landlords and public buildings in Force Green and the rest of Greater London. Force Green is one of 764 towns, villages and districts in Greater London where we work for commercial clients. Our London page covers sites nearby, about 17 miles away.
Postcode districts we cover here for ductwork cleaning: TN16. Nearby, we also carry out ductwork cleaning in Westerham (1 mile south), South Street (2 miles north-west), Moorhouse Bank (2 miles south-west), Tatsfield (2 miles north-west) and Titsey (2 miles west). We also work in nearby towns such as Orpington (7 miles north), New Cross (14 miles north), Thornton Heath (12 miles north-west), Croydon (10 miles north-west), East Dulwich (14 miles north-west) and Plumstead (14 miles north).
Landmarks near Force Green
Locally, jobs take us to businesses close to The Olde House At Home Public House, among other places. The closest station to Force Green is Oxted station, roughly 3.8 miles south-west of the centre. Nearby you’ll also find Tandridge Priory (2.7 miles south-west). Not far away are Dryhill Nature Reserve and Betsom's Hill.
How the job changes from site to site
Vertical risers
Cleaning a riser needs access along its height. Any part that cannot be safely reached is recorded.
Bends and transitions
Grease tends to pile up at elbows. We clean it back by hand and with degreaser, and readings are taken there before and after.
Landlords, agents and facilities managers
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We can quote either party, and the report can go to both.
Whether it’s one building or many, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with pictures.