Greater London · Extract fan cleaning
Extract fan cleaning in Northwood, Greater London
Extract fan cleaning for Northwood, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- A fan motor running hot under a coat of grease
- A heavily greased fan housing
- An extract fan with no cleaning record
How we handle extract fan cleaning in Northwood
Grease on a fan is not spread evenly. Heavier deposits on some blades throw the impeller off balance, leading to vibration, noise and strain on the motor and bearings. Cleaning the impeller and housing puts that right. The work covers roof-mounted fans, fan housings and in-line fans, and the jobs we see most are a fan shaking on its mounts and rough running from the extract fan.
In a London area like Northwood, 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.
A written report with pictures follows each visit, so you have a record of what was done and when. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.

- Place
- Northwood (HA6)
- Wider area
- Greater London
- Reporting
- TR19® certificate and photo report
- Quotes
- Fixed quote, typically within a working day
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
How the visit works
Your staff do not need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and we take it from there. Before we leave, the area is tidied and the paperwork follows. Getting kit into a London building takes planning, so let us know where we can load and park in Northwood.
- First we locate the fan and agree how it’s safely isolated.
- Power to the fan is isolated before anyone touches it.
- Grease is scraped from the impeller blades and the inside of the housing.
- The fan and its surrounds are degreased, keeping clear of the motor’s electrics.
- The fan is put back into service, checked and photographed.
How to prepare
- Tell us where we can park and unload
- Make sure someone can let us in and lock up afterwards
- Plan for cooking equipment or plant to be off before we arrive
Ask for a quote
Some systems can be priced from pictures; others need a survey. 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.
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Northwood kitchens: local notes
The Food Standards Agency lists about 9 pubs, bars and clubs as registered food businesses within 1.5 miles or so of the middle of Northwood. A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. It’s Hillingdon council that sends environmental health officers to food businesses in Northwood. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Before-and-after pictures from each clean are a simple way to show the extract is in hand. Most London extract cleaning happens at night, after the last service.
Term dates shape school work: for a school like Frithwood Primary School, an extract clean fits neatly into a half-term or summer break. Historic houses near Northwood, such as Headstone Manor about 3.3 miles south-east, are a reminder that older buildings with event kitchens can have long, awkward duct routes.
Northwood is about 3 miles south-east of Rickmansworth, in Greater London. Sites in Northwood get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with pictures. Our area takes in 764 places across Greater London, large and small. London is in our area too, around 16 miles away.
Work in HA6 follows the same survey, fixed quote and written report as everywhere else we cover. You’ll find streets such as Little Stream Close and Sandy Lodge Way, and we cover them all for extract fan cleaning. If your site is just outside Northwood, we cover Eastbury (1 mile north-east), Moor Park (1 mile north-west), Batchworth Heath (1 mile west), Batchworth (2 miles north-west) and Holywell (2 miles north). Larger places within reach include City of Westminster (14 miles south-east), Marylebone (14 miles south-east), Kensington (12 miles south-east), St Pancras (14 miles south-east), Hampstead (11 miles south-east) and Ruislip (3 miles south).
Near you in Northwood
Typical jobs here are in premises near King George V Playing Fields, The Gate Public House and London School of Theology, among other places. Northwood’s nearest station is Carpenders Park station, about 1.7 miles north-east of the centre. Nearby you’ll also find Harlequin Centre (2.9 miles north-east) and Heath Robinson Museum (2.2 miles south-east). Not far away are Dews Farm Sand Pits and Tumbling Bay.
Places near Northwood
More services for Northwood
Part by part
Kitchens with long cooking hours
Kitchens that cook 12 to 16 hours a day put the most grease through their fans. Under BESA guidance, heavy use means cleaning at least every 3 months, fan included.
Impellers and blades
The blades of the impeller do the work, and grease builds up on them unevenly. An uneven coating throws it off balance, so it’s cleaned carefully blade by blade.
FAQs for Northwood
Can a school canteen extract in Northwood be done out of term time?
Yes, and it’s the easiest time to do it. There are about 24 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Northwood. Send us your term dates when you give us a ring on 0345 646 2711 or drop us a line, and we’ll fit the work in.
What do you need to know about parking in Northwood?
London parking can be tight, so details of loading bays and permits help. Working overnight, as we often do in London, usually makes it simpler.
What do you do with what you remove?
We contain it and take it with us. Grease, debris and waste water are collected as the work goes on rather than letting it spread.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Why is my extract fan noisy?
Build-up on the impeller is a frequent reason, since uneven grease makes it run out of balance. Worn bearings and motor problems are others, which our report will flag.
Who is responsible for fire safety on the premises?
The law calls them the responsible person. It’s normally the employer, or whoever controls the building, and where several people have control, each can have duties. If you’re not sure, check your lease and fire risk assessment.
What accreditations do you have?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’re fully insured and have been trading since 2009.
Do you work in Northwood?
Yes. We cover Northwood 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 email photos.
What we are called out for in Northwood
A fan on a roof or hidden in a ceiling void is easy to forget. If it wasn’t included in past cleans, it may hold years of grease, and the report will show it.
It’s time to book a visit if you see:
- An extract fan with no cleaning record
- Vibration from an unbalanced impeller
- A fan that no longer moves enough air
- A motor area thick with grease
Church and community hall kitchens, near Emmanuel Church or anywhere around Northwood, are easy to forget, but their extracts collect grease like any other.
What to look for in a quote
- Which accreditations they hold, and whether you can check them
- If the quote is a fixed price or an estimate
- How they set the interval to the next visit
- What paperwork you get at the end
Why it’s worth doing now in Northwood
Cleaning the fan in Northwood now is a short job: it takes a few hours where there are several fans or heavy deposits. Leaving it means more wear, more noise and a bigger clean later. Choosing the date yourself beats having a fault choose it for you.
Several systems or sites on one quote often makes better use of the time. Tell us about everything you’d like looked at, and you’ll get one fixed quote.
Why Northwood businesses choose us
- One number for every site across the South East and London
- Photo reports with every job
- Full insurance on every job
- CHAS, SafeContractor and ISO 9001
See how cleaning jobs are priced and our accreditations and certificates.
Aftercare tips
Once we’ve finished, these simple steps help:
- Flag smoke lingering at the canopy
- Report grease escaping from the fan
- Run the extract throughout cooking
- Check the report shows the fan was cleaned
A full system clean includes a TR19 certificate from the BESCA Vent Hygiene Elite portal. A fan-only clean is recorded in the photo report.
Do not run the kitchen with the extract off. Grease settles faster when the air stops moving, so keeping it running helps keep it clean.
Managing agents and facilities teams in Northwood
From a single site to a large estate, the standard is the same: a survey first, a fixed quote, the work timed around the site and a report with pictures.
Facilities teams in offices, schools and healthcare sites book us too in Northwood and across Greater London. Work can be phased by floor, building or site to keep disruption down.
How we price extract fan cleaning
The diagnosis comes before the price. The main factors are:
- Site requirements such as sign-in and permits
- Access, including roofs, risers and ceiling voids
- Where the site is and how we reach it
- Whether it’s a one-off visit or part of a schedule
Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we’ll explain each part.
Asking for a quote
When you call or email, these details help:
- Photos showing the whole system and its surroundings
- Close-ups of filters, grilles, hatches or access panels
- Your last certificate, test record or report
- Where the site is and what kind of site it is
Want a quote for extract fan cleaning? Please call 0345 646 2711 or drop us a line and tell us about the site. We will talk you through the work and give you a fixed quote before you commit to anything.