Greater London · Ductwork cleaning
Duct cleaning in Cockfosters
Ductwork cleaning across Cockfosters and nearby, booked around your opening hours and signed off in writing with pictures.
- Gaps where access panels were never fitted
- Thick crusts of old grease along the duct
- Grease leaking from duct joints
Ductwork cleaning for kitchens and businesses in Cockfosters
We treat ductwork like a doctor treats arteries: diagnose where grease has built up, clear it and confirm the result. Grease readings before and after give you the evidence, alongside before and after pictures. If you have hardened, baked-on grease in long horizontal runs and duct runs that can’t be reached, we can help, from access panels, attenuators and bends and junctions onwards.
London kitchens tend to trade late and open early, so work in Cockfosters 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.
Nothing is signed off by word of mouth: a dated report with photos of the work, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. It shows what was done and what, if anything, couldn’t be reached.
- Place
- Cockfosters (EN4, N14)
- Wider area
- Greater London
- Reporting
- Certificate and photo report
- Price
- A fixed price before work begins
- Working hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
Common problems we fix in Cockfosters
Slow air leaves the most grease behind. Long horizontal runs, bends, changes in size and the foot of a riser all collect more, and those are the points we pay most attention to.
It’s time to book a visit if you see:
- Ductwork that has never been cleaned
- Fat dripping from the ductwork
- Grease pooling at the foot of the riser
- A rancid smell from the extract duct
School kitchens, at schools like Trent CofE Primary School for example, are usually cleaned in the holidays so no lunches are lost.
What your quote should include
- Whether the whole system is included, or only the parts that are easy to reach
- Whether the quote is based on a survey or pictures
- How they set the interval to the next visit
- Whether the work can be done while the site is closed
How we price ductwork cleaning
There’s no set price list, because no two systems are the same. The quote depends on:
- One-off work versus a regular cycle
- Where the site is and how we reach it
- How big the system is
- How easy every part is to reach
We do not list prices on the website, because each job is priced on what it involves. Call for a fixed quote, and we’ll explain what it covers.
Asking for a quote
To speed up the quote, please include:
- Wide photos of the system and the area around it
- The roof, plant room or outside wall the system runs to
- The postcode and the type of business
- The times we could work without disrupting the site
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
Part by part
Horizontal duct runs
Grease settles on the floor of a flat duct run. Thick deposits are scraped out by hand before degreasing, then the walls and roof are cleaned too.
Attenuators and discharge
Some systems have attenuators to reduce noise, and their linings can soak up grease. They’re cleaned where possible and recorded if not.
The process
A visit follows the same order every time: sheeting and protection first, make the system safe, carry out the ductwork cleaning, tidy up and leave you the report. On site, the work takes a shift or more, depending on the length of the runs and the number of access points. Before any visit in Cockfosters, we agree where the van can stop and how equipment reaches the system.
- First the duct route is traced and every access point noted.
- We measure grease thickness at set points before cleaning.
- Access panels are opened and heavy deposits scraped out by hand.
- Horizontal runs and risers are then degreased by the method that suits the deposit.
- We test again, take photos and note any part that couldn’t be reached.
How to prepare
- Clear loose items from the work area
- Agree a time when the area can be out of use
- Make sure equipment near the work can be switched off and left to cool
Getting a quote
The quickest way to a quote is to send pictures: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and many jobs can be priced from that alone.
Related advice
Staff cleaning versus specialist work
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.
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We’ll take a look and give you a fixed quote.
FAQs for Cockfosters
Do you work overnight in Cockfosters?
Yes, nights and weekends are routine for us. The work in Cockfosters can fit around your hours. Let us know the hours you are closed and we will book within them.
Who would carry out a food hygiene inspection at a kitchen in Cockfosters?
Kitchens in Cockfosters are inspected by Enfield council’s environmental health officers. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
How is kitchen extract ductwork cleaned?
We get into the duct through its access panels. Heavy grease is scraped out by hand, then the surfaces are degreased with a method that suits the deposit, such as degreasers, hot water or steam.
How much notice should we give?
Earlier is better, particularly for night and weekend visits. Quotes typically come back within one working day, and there’s a 24/7 line for emergencies.
Who is the responsible person?
Under the Regulatory Reform (Fire Safety) Order 2005, it’s the responsible person: often the employer, owner or occupier. Landlords, facilities managers and managing agents can also hold responsibility.
What’s TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
How long will the duct clean take?
Allow 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.
What happens if there aren’t enough access panels?
We clean everything we can reach and record what we cannot. Extra panels can be installed, and we can do that for you.
Places near Cockfosters
More services for Cockfosters
Leave it or put it right?
Booking the duct clean in Cockfosters now keeps it a planned job. The work takes a shift or more, depending on the length of the runs and the number of access points, done out of hours so the kitchen keeps cooking. London sites work long hours, and the longer a job is left, the bigger it gets.
When the work has to happen, how we reach it and how big the site is all affect the cost. We take each of them into account, and the price is fixed before work begins.
Why us?
- Ventilation hygiene specialists since 2009
- Accredited under CHAS and SafeContractor, with ISO 9001
- Fixed quotes from a survey or photos
- Survey first, then a fixed quote
See what affects the cost or our accreditations and certificates.
Ductwork cleaning in Cockfosters: the local picture
Look up Cockfosters on the FSA’s food hygiene register and you will find about 71 restaurants, cafés and works canteens and about 29 takeaways and sandwich shops within about 1.5 miles of central Cockfosters. Where they cook under a canopy, grease does not stop at the filters: it settles along the duct and up the riser. Food hygiene inspections in Cockfosters are the job of Enfield council’s environmental health team. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Before-and-after photos from each clean are a simple way to show the extract is in hand. London Fire Brigade covers Cockfosters. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises.
For kitchens close to New Barnet station, where the day often starts early and ends late, the extract can be cleaned overnight. Where a hall near Christ Church, or anywhere in Cockfosters, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Cockfosters is about 1 mile east of Barnet, in Greater London. Wherever you are in the EN4 postcode area, we can take on ductwork cleaning. We cover 764 places across Greater London, from busy centres to quieter spots. London is in our area too, around 11 miles away.
We cover every part of the EN4 and N14 postcode area for ductwork cleaning and the roads nearby. We cover sites on Park Road, Grove Road and Bevan Road and the roads around them. With the A111 close by, Cockfosters is easy for our technicians to reach at any hour. Nearby, we also carry out ductwork cleaning in New Barnet (1 mile south-west), Hadley Wood (1 mile north-west), East Barnet (1 mile south), Oakwood (1 mile south-east) and Osidge (1 mile south-east). Larger places within reach include London (11 miles south), City of Westminster (10 miles south), Marylebone (9 miles south), Kensington (11 miles south), St Pancras (9 miles south) and Shoreditch (9 miles south).
What’s near Cockfosters
Around Cockfosters, our work takes us to kitchens and buildings near The Cock Inn, Trent School Cockfosters and Belmont Open Space, among other places. The closest station to Cockfosters is New Barnet station, about 0.8 miles west of the centre. A little further out are Francis Skaryna Belarusian Library and Museum (2.8 miles south-west) and Chase Farm Hospital (2.5 miles north-east). For a walk, there’s Covert Way and Darland's Lake.
Managing agents and facilities teams in Cockfosters
We regularly work with managing agents. Send the address, what’s needed and how access works and we’ll come back with a fixed quote.
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We can quote either party, and the report can go to both.