Greater London · Extract fan cleaning
Extract Fan Cleaning in North Finchley
Our technicians work in North Finchley on extract fan cleaning. Out-of-hours visits, a fixed quote and a written report with photos on every job.
- Hot, greasy smells near the fan
- An extract fan that vibrates or rattles
- Rough running from the extract fan
Extract fan cleaning in North Finchley
The extract fan is the heart of the system: it draws the air through the canopy and ductwork and pushes it outside. Grease that gets past everything else ends up on its blades and housing and we clean it off. If you are dealing with an extract fan with no cleaning record and burning smells from the fan area, we can help.
Across London, many commercial kitchens are squeezed into basements and narrow back-of-house spaces, with extract ducts that can climb several floors to discharge at roof level. For a kitchen in North Finchley, that normally means a longer system to clean and more access panels to plan around.
The report is your system’s health record: a dated account with pictures of everything we did. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Place
- North Finchley (N12, N20, N11)
- Region
- Greater London
- Paperwork
- Certificate plus before-and-after pictures
- Price
- A fixed price before work begins
- When we work
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What affects the cost of extract fan cleaning
Before we fix a price, we need to know a few things. We look at:
- Access, including roofs, risers and ceiling voids
- Where the site is and how we reach it
- How big the system is
- Any permits to work or inductions
The price reflects the work, not guesswork. That’s why every job is surveyed first, and why the quote is fixed before work begins.
What we need to know
When you call or email, it’s useful to have:
- The times we could work without disrupting the site
- Any symptoms, from odd noises to smells or leaks
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Detail shots of panels, filters and grilles
Getting a quote does not take long. Call or email with a few details and you will normally have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
Leave it or put it right?
A fan that sounds rough in North Finchley is often telling you the extract needs a clean. Grease on the fan means grease in the duct before it so a full TR19 clean may be due. It’s better booked as a planned job in North Finchley than handled as an emergency.
The cost depends on how big the system is, what state it’s in and access to every part of it. We give you a fixed price before we start, so you know where you stand.
Why choose Duct Doctor in North Finchley
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Photo reports with every job
- In business since 2009
- Out-of-hours work and a 24/7 emergency line
See our cost guide and how to check a contractor.
Landlords, agents and facilities managers
Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept on a regular cycle.
Whether it’s one building or many, you get the same standard: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.
What extract fan cleaning looks like in North Finchley
The FSA’s data shows about 32 bars, pubs and nightclubs registered within about 1.5 miles of central North Finchley. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. North Finchley is covered by London Fire Brigade. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. London jobs typically start after the last service, with loading and roof access agreed with the building first.
Heath Hall, about 2.9 miles south, is one of the historic houses near North Finchley; if you run event catering at a venue like that, cleans can be booked between functions. A hospital like Finchley Memorial Hospital, about 0.8 miles south, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
North Finchley is about 1 mile north of Finchley, in Greater London. We carry out extract fan cleaning for businesses, landlords and public buildings in North Finchley and the rest of Greater London. Our Greater London coverage runs to 764 places, North Finchley among them. You can also see our page for London, roughly 9 miles from North Finchley.
All of N12, N20 and N11 is covered for extract fan cleaning, from busy streets to back roads. Streets in the area include High Road, Lodge Lane and Percy Road, all of which we cover for extract fan cleaning. North Finchley sits on or near the A1000, so getting to you is simple for evening and night visits. We also cover the places around North Finchley: Woodside Park (1 mile west), Oakleigh Park (1 mile north), Whetstone (1 mile north), Friern Barnet (1 mile east) and Finchley (1 mile south). Within a short drive, we also cover London (9 miles south-east), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (8 miles south), St Pancras (7 miles south) and Shoreditch (8 miles south-east).
Landmarks near North Finchley
Typical jobs here are in premises near Friary Park, Woodhouse College and The Bohemia pub. You’ll also find Francis Skaryna Belarusian Library and Museum (0.5 miles west) and St Michael's Catholic Grammar School (under half a mile south-west). The nearest railway station is New Southgate station, about 1.4 miles east of the centre. Well-known places in the area include Finchley Memorial Hospital (0.8 miles south) and Francis Skaryna Belarusian Library and Museum (0.5 miles west). Open spaces near North Finchley include Darland's Lake and Glebelands Local Nature Reserve.
What staff can safely do
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. That’s our job.
Common questions in North Finchley
Can you clean school kitchen extracts in North Finchley during the holidays?
Yes, holiday work suits schools best. Around North Finchley, the Food Standards Agency lists about 40 schools and colleges with registered kitchens within a mile and a half or so. Tell us your holiday dates and we’ll book the visit for when the site is empty.
Is parking a problem for work in North Finchley?
Tell us where a van can stop near your site in North Finchley, and about any building rules on loading. If the building has a loading slot system, we will book into it.
Can the work be done while we are closed?
Yes. Evenings, nights and weekends are normal working hours for us, so the site does not lose a service.
Are you fully insured?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
Will we have to shut during the visit?
Not typically. We need the work area to ourselves while we are on site, so we book a time when it would be closed anyway.
Why has my extract fan got louder?
An unbalanced impeller, normally from uneven grease, is a common cause. After cleaning, we’ll tell you if wear or damage is also involved.
Is there a survey before the work?
Yes, every time. Diagnosis comes before treatment: the survey tells us what the system needs and how to reach it and the fixed quote is built on it.
Do you need to turn the fan off to clean it?
We always isolate the fan first, so it can’t run during the clean. That means the extract is off, so we clean while the kitchen is closed.
Honest limits
To be straight with you, some problems need a different fix:
- Damaged fan blades
- A fan that won’t start
- Grease in the duct and canopy before the fan (those need a full TR19 clean)
If you’re not sure, just phone us on 0345 646 2711 or send us an email and we’ll give you a straight answer.
What the work covers
- Discharge points
- Fan housings
- Centrifugal fans
- Roof-mounted fans
- Axial fans
- In-line fans
Also near North Finchley
What else we do in North Finchley
Common problems we fix in North Finchley
Grease builds up unevenly on the blades. The difference throws the impeller off balance, wearing bearings and mounts. What starts as a grease problem can become a mechanical one.
Any of these means the system needs a check-up:
- A motor area thick with grease
- Thick grease on the impeller and casing
- An extract fan that vibrates or rattles
- Weak extraction at the canopy
Term dates shape school work: for a school like Sacks Morasha Jewish Primary School, an extract clean fits neatly into a half-term or summer break.
What to look for in a quote
- Whether inaccessible sections are listed on the report
- What insurance they carry
- When the next visit should be, and why
- Whether the quote is based on a survey or photos
What happens on the day
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Before we leave, the area is tidied and the paperwork follows. Night and weekend working is normal for us in London, and a site in North Finchley is no exception.
- We start by checking where the fan sits and how to isolate it.
- The fan is isolated so it cannot start while we work.
- The impeller and the housing around it are scraped clean.
- The fan and its surrounds are degreased, keeping clear of the motor’s electrics.
- We reassemble, run the fan and photograph the result.
Before we arrive
- Allow time for equipment near the work to be turned off and cool down
- Move anything stored near the system
- Find the previous report, if there is one
How to get a quote
The quickest way to a quote is to send pictures: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.