Greater London · Extract fan cleaning
Extract Fan Cleaning in Harlesden
Need extract fan cleaning in Harlesden? We survey first, give you a fixed quote and work around your opening hours, then sign off with a report and pictures.
- Vibration from an unbalanced impeller
- A smell of hot grease from the extract
- Rough running from the extract fan
Extract fan cleaning for kitchens and businesses in Harlesden
Duct Doctor has been cleaning kitchen extract fans since 2009. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we’re fully insured, with CHAS, SafeContractor and ISO 9001. The work covers in-line fans, fan housings and discharge points, and common reasons people get in touch are grease stains around the discharge and a fan that no longer moves enough air.
In a London area like Harlesden, a kitchen extract often passes through shared space on its way out: a riser, a service void, the floors above. Grease in a duct like that is a fire risk to the whole building, not just the kitchen, so a regular TR19® clean protects everyone in it.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.

- Place
- Harlesden (NW10, W3, NW26)
- Wider area
- Greater London
- Reporting
- Certificate plus before-and-after pictures
- Quotes
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Managing agents and facilities teams in Harlesden
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so records stay tidy.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.
What affects the cost of extract fan cleaning
Your quote is based on your site. We consider:
- The size of the system
- The times the site is available
- Parking and loading at the site
- The number of sites or systems
Kitchens, offices, schools and hospitals are all priced 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 will go through it with you.
What to send for a quote
There’s no need for technical detail. Just send:
- Any symptoms, from odd noises to smells or leaks
- The postcode and the type of business
- A few general shots of the system
- Your opening hours and when the area is out of use
The quickest way to a quote is to send photos: 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 we can price many jobs without a visit.
Also near Harlesden
Other services in Harlesden
Different parts, different methods
Kitchens with long cooking hours
A fan in a long-hours kitchen runs for most of the day, which means grease and wear add up quickly. Cleaning on time helps keep it running.
Roof-mounted fans
Roof fans also discharge grease onto the roof around them, so the outlet area is checked too. Heavy staining is noted on the report.
When it’s something else
We won’t sell you work that doesn’t address the problem, so here are the limits:
- A fan that is too small for the system (a design question)
- Grease in the canopy and ductwork
- A motor that has burnt out
If in doubt, phone us on 0345 646 2711, or email photos and we’ll say what we think.
What the work covers
- In-line fans
- Centrifugal fans
- Axial fans
- Discharge points
- Fan housings
- Roof-mounted fans
Harlesden: your questions answered
Which fire service covers Harlesden?
It’s London Fire Brigade, which covers Harlesden. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
Can you work in Harlesden outside opening hours?
Yes, we can come after you close and finish before you open. Your customers, staff or residents in Harlesden needn’t be disturbed. Your opening times are the first thing we ask for.
Can you look after several sites?
Yes. Our area covers London and the South East, so sites at different addresses can be planned together on one programme. Each site gets its own report and photos.
Do you have insurance?
Yes. Full insurance covers our work, and we’ve been trading since 2009.
How often does the fan need cleaning?
With the whole system, at intervals set by BESA guidance: from 3-monthly for heavy use to 12-monthly for light use. Some fans need attention sooner.
Do you work in Harlesden?
Yes. We work in Harlesden and the rest of Greater London, as part of our work across South East England and London. For a fixed quote, give us a ring on 0345 646 2711 or use the quote form.
What does extract fan cleaning cost?
Every site is different, so each gets its own fixed quote. To get one, call us on 0345 646 2711 or use the quote form with the site type, opening hours and a few pictures.
Is TR19 cleaning required by law?
No. TR19® itself isn’t law; it’s a BESA specification. The law is the Regulatory Reform (Fire Safety) Order 2005, which makes the responsible person assess and reduce fire risk, and cleaning to TR19® is the recognised way to show grease is under control.
Grease, kitchens and Harlesden
The FSA’s food hygiene register includes about 31 pubs and bars across Harlesden and its immediate surroundings (about a mile and a half). Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Harlesden sits within the area of 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. Kitchens in Harlesden get their food hygiene inspections from Brent council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Before-and-after photos from each clean are a simple way to show the extract is in hand.
For schools such as John Keble CofE Primary School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed. A kitchen near Willesden Junction station that serves breakfast and dinner can run its extract twelve hours or more, which shortens the cleaning interval. Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Central Middlesex Hospital is the nearest hospital to Harlesden, about 1 mile west.
Harlesden is about 4 miles west of City of Westminster, in Greater London. Whether your site is in the middle of Harlesden or further out, extract fan cleaning is available to all kinds of commercial premises, from small sites to large estates. Harlesden is one of 764 places in Greater London we cover for extract fan cleaning. For sites nearby, see our London page, about 7 miles away.
Work in NW10, W3 and NW26 is surveyed, quoted and booked the same way as anywhere else. You’ll find streets such as Fry Road, Wood Road and Park Road, all of which we cover for extract fan cleaning. Other places close to Harlesden include College Park (1 mile south-east), Old Oak Common (1 mile south), Church End (1 mile north), Stonebridge (1 mile north-west) and Willesden Green (1 mile north-east). Within a short drive, we also cover London (7 miles east), City of Westminster (4 miles east), Marylebone (5 miles east), Kensington (3 miles south-east), St Pancras (6 miles east) and Shoreditch (7 miles east).
Near you in Harlesden
In Harlesden, that means kitchens and buildings near St Claudine's Catholic School for Girls, Royal Oak Inn and Roundwood Park, among other places. There’s a railway station in Harlesden itself: Willesden Junction station. Other landmarks nearby include Central Middlesex Hospital (1 mile west) and Brent Museum and Archives (1.1 miles north-east). Open spaces near Harlesden include Castlebar Hill and The Long Water.
What your team can do, and what needs us
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, alongside our reports.
How it works
Protection comes first: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. It takes an hour or two for one fan, longer when it’s hard to reach, and we clear up before we go. For a job in Harlesden, tell us about loading bays, permits, lifts and roof access when you book.
- First we check the fan’s condition and how it sounds.
- With the fan isolated, the housing is opened.
- Each blade is cleaned so the impeller runs evenly.
- Housing, outlet and the area around the motor are cleaned.
- We run the fan and note its condition in the photo report.
Before we arrive
- Let us know about permits to work or site inductions
- Let us know how we reach the system, including roofs, risers and plant rooms
- Allow time for equipment near the work to be turned off and cool down
How to get a quote
There’s no standard price list, because no two systems are the same. We look at your system first, from photos or on a visit, and then give you a fixed quote. To start, give us a ring on 0345 646 2711, or email photos.
Advice
Aftercare tips
Here’s the after-treatment advice, short and simple:
- Leave a clear route to the fan
- Notice when the fan starts to sound different
- Report grease escaping from the fan
- File the fan’s report with your other records
We take away the grease and dirty water from the fan clean. On a roof or outside wall, we leave the surrounding area tidy.
A change in how the fan sounds is worth noting. New noise or vibration often means grease is building on the impeller, and catching it early keeps it a cleaning job.