Greater London · Extract fan cleaning
Extract fan cleaning in Harmondsworth, Greater London
Extract fan cleaning for businesses, landlords and public buildings in Harmondsworth. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Vibration from an unbalanced impeller
- Grease stains around the discharge
- A fan left out of previous cleans
Landlords, agents and facilities managers
Facilities teams in offices, schools and healthcare sites book us too in Harmondsworth and across Greater London. Larger estates can be phased building by building to keep disruption down.
Records are where multi-site compliance often slips. Each visit produces a dated report with pictures, so you can show an insurer or inspector what was done at each site.
Extract fan cleaning in Harmondsworth
Kitchen extract fans come in different forms: fans on the roof, fans built into the duct run, and fans on an outside wall. Each is isolated and opened in its own way, and we plan that during the survey. The work covers in-line fans, axial fans and roof-mounted fans, and people most often call us about weak extraction at the canopy and hot, greasy smells near the fan.
Across London, many commercial kitchens are squeezed into basements and narrow back-of-house spaces, and the duct may run up through several floors before it discharges at the roof. In Harmondsworth, as elsewhere in the capital, a long duct run means more access points to open and more grease to remove.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.

- Location
- Harmondsworth (UB7, TW6)
- Region
- Greater London
- Reporting
- TR19® certificate and photo report
- Quote
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
How it works
Protection comes first: floors, worktops and anything near the work are covered. Then we make the system safe and start. The work on site takes an hour or two for one fan, longer when it’s hard to reach, and the area is cleaned down before we leave. Most London sites can’t stop for the day, so work in Harmondsworth is normally done overnight, early in the morning or at weekends.
- We locate the fan and plan how to reach and isolate it.
- It’s isolated so it can’t run while we work.
- We scrape the heavy grease from the blades and housing.
- The fan is degreased, taking care around the motor.
- It’s closed up, run, checked and photographed for the report.
How to prepare
- Let us know when the site is closed or quiet
- Tell us about site rules, permits or sign-in
- Clear loose items from the work area
How to get a quote
Here’s what helps us quote: where the site is, what it is and its opening hours, photos of the system and any previous report or certificate. Once you have those, phone us on 0345 646 2711 or email us.
Advice
Harmondsworth: your questions answered
Which fire authority looks after Harmondsworth?
It’s London Fire Brigade, which covers Harmondsworth. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
Do you clean school canteen extracts around Harmondsworth out of term?
Yes. Half-terms and the summer break are the natural time for school work. Food Standards Agency records list about 11 schools, colleges and universities with registered kitchens within about a mile and a half of Harmondsworth. You can ring 0345 646 2711 or send us an email with the dates the site is empty.
Can the work be done while we are closed?
Yes. Evenings, nights and weekends are normal working hours for us, so the site doesn’t lose a service.
How much notice do you need?
For planned work, earlier is better, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
Does the law say we must follow TR19?
No. TR19® is BESA’s specification, not legislation. The legal duty comes from the Regulatory Reform (Fire Safety) Order 2005: the responsible person must assess and reduce fire risk, and TR19® is the benchmark for showing that grease in the extract is under control.
Do you have insurance?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
What’s TR19?
A BESA specification, with two parts that matter most here: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It is not legislation, but it’s the standard people check against.
Who is the responsible person?
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.
Leave it or put it right?
Without a working extract fan, a kitchen cannot cook safely. Grease is often where fan trouble begins, so keeping it clean is part of keeping it running. We also offer a 24/7 emergency callout if the worst happens. For a site in Harmondsworth, fitting the work in overnight now is far easier than closing at short notice later.
Putting the work off seldom saves money. Problems in a system tend to grow, which can make the next visit longer. If you are not sure what’s needed, call us on 0345 646 2711, or send details by email for straight advice and a fixed quote.
Why Harmondsworth businesses choose us
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Full insurance on every job
- Survey first, then a fixed quote
- Every visit written up, with pictures
What your team can do, and what needs us
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
Different parts, different methods
Wall fans
Grease can mark the outside wall around the fan. The outlet is checked as well as the fan.
Inline duct fans
Inline fans sit within the duct run, often above a ceiling. We get to them through the duct or casing, once they’re isolated.
How we price extract fan cleaning
Every site gets its own quote. This is what makes a difference:
- The times the site is available
- The condition of the system
- The number of sites or systems
- Parking and loading at the site
A single site or a whole portfolio, the quote is built the same way: the work involved, the access and the timing. You will have a fixed price before any work starts.
What to send for a quote
Before you ask for a quote, gather:
- The paperwork from the last visit, if you have it
- The roof, plant room or outside wall the system runs to
- Close-ups of filters, grilles, hatches or access panels
- Where the site is and what kind of site it is
We do not publish a price list, because every site is different. Instead, we look at your site first, from photos or a survey, and then give you a fixed quote. To get going, ring 0345 646 2711 or email us.
Harmondsworth kitchens: local notes
The FSA’s food hygiene register includes about 14 pubs, bars and clubs and about 12 hotels, B&Bs and guest houses within 1.5 miles or so of the middle of Harmondsworth. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Harmondsworth sits within the area of London Fire Brigade. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. Overnight is the normal time to clean a London kitchen extract, so trading is not affected.
A hospital like Harlington, about 1.4 miles east, is the kind of site where a kitchen may cook for patients, staff and visitors all day. For schools such as Harmondsworth Primary School, kitchen extract cleaning is usually booked for the holidays, when the canteen is closed. A hall kitchen that only cooks for events, whether near Church of St Mary or elsewhere in Harmondsworth, still needs its extract cleaned, just less often.
Harmondsworth is about 1 mile south-west of West Drayton, in Greater London. Harmondsworth gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with photos. Our Greater London coverage runs to 764 places, Harmondsworth among them. You can also see our page for London, about 17 miles away.
Extract fan cleaning in UB7 and TW6 is surveyed, quoted and booked the same way as anywhere else. If you need extract fan cleaning at premises on Moor Lane, Hatch Lane and High Street or anywhere close by, our technicians can take on the work. Neighbouring places we cover for extract fan cleaning include Longford (1 mile south-west), Sipson (1 mile north-east), Heathrow (2 miles south-east), Harlington (2 miles east) and Stanwell (2 miles south). Larger places within reach include City of Westminster (14 miles east), Marylebone (14 miles east), Kensington (12 miles east), Hampstead (14 miles east), Ruislip (7 miles north-east) and Brompton (14 miles east).
Near you in Harmondsworth
We work in commercial kitchens and buildings around Harlington Community School and The Five Bells Inn, among other places. The closest station to Harmondsworth is Heathrow Terminal 5 Rail station, about 1 mile south of the centre. A little further out are British Airways Heritage Collection (3.5 miles north) and Harlington (1.4 miles east). The countryside around Harmondsworth includes Crane Meadows and Staines Reservoirs.
Places near Harmondsworth
More services for Harmondsworth
What extract fan cleaning can’t fix
Not every problem is solved by extract fan cleaning, and we will tell you before any work starts. It does not solve:
- A cracked or broken impeller (it needs replacing)
- An undersized fan that cannot cope
- A fan that will not start
Not sure which it is? You can give us a ring on 0345 646 2711 or use the quote form and we will tell you honestly before you book.
What we work on in Harmondsworth
- Roof-mounted fans
- Centrifugal fans
- Discharge points
- In-line fans
- Axial fans
- Fan housings