Hertfordshire · Extract fan cleaning
Extract Fan Cleaning in London Colney
Extract fan cleaning for businesses, landlords and public buildings in London Colney. CHAS, SafeContractor and ISO 9001, and fully insured.
- A fan left out of previous cleans
- A heavily greased fan housing
- Grease escaping from the fan outlet
When to call us in London Colney
A greasy fan in London Colney is fuel at the end of the duct. A fire in the duct can reach the fan and the grease around it, and a hot, struggling motor does not help.
Signs it’s time to call us include:
- Less air being pulled from the kitchen
- A smell of hot grease from the extract
- A fan left out of previous cleans
- Vibration from an unbalanced impeller
Where a hall near Church of St Peter, or anywhere in London Colney, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Questions to ask before booking
- Whether a written report and pictures are included
- What insurance they carry
- If the quote is a fixed price or an estimate
- If they look at the system before pricing
Extract fan cleaning for kitchens and businesses in London Colney
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’re dealing with a smell of hot grease from the extract and a fan shaking on its mounts, we can put it right.
Around a smaller place like London Colney, kitchen extracts tend to belong to pubs, cafés, takeaways and school or care home kitchens. Quieter kitchens still collect grease in the duct, just more slowly, so cleaning is planned around how much it cooks and what the readings show.
Accreditations are easy to claim and worth checking. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Place
- London Colney (AL2, AL1)
- Wider area
- Hertfordshire
- Paperwork
- Certificate plus before-and-after pictures
- Price
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What the work involves, part by part
Impellers and blades
Coated blades move less air. Scraping and degreasing them restores their shape, so the fan can run as intended.
Fan housings and motors
The housing around the impeller catches grease flung off the blades. We clean it along with the blades.
Kitchen extracts in London Colney
Food Standards Agency records include about 10 pubs, bars and clubs across London Colney and its immediate surroundings (about a mile and a half). Any of them serving cooked food has an extract to keep clean, from canopy to discharge. London Colney is covered by Hertfordshire Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. It’s St Albans City council that sends environmental health officers to food businesses in London Colney. 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.
If you look after a school kitchen, at a school such as Bowmansgreen Primary School or anywhere near London Colney, the holidays are the usual time for a TR19® clean. Batchwood Hall, about 3.9 miles north-west, is one of the historic houses near London Colney; if you run event catering at a venue like that, cleans can be booked between functions.
London Colney is about 2 miles south-east of St Albans, in Hertfordshire. From the centre of London Colney to the outskirts, extract fan cleaning is available to all kinds of commercial premises, from a single unit to a large public building. London Colney is one of 381 towns, villages and districts in Hertfordshire where we work for extract fan cleaning. You can also see our page for London, about 18 miles away.
Here we cover the AL2 and AL1 postcode area for extract fan cleaning. If you need extract fan cleaning at premises on High Street, London Road and Haseldine Road or a nearby road, we can help. Other places close to London Colney include Broad Colney (1 mile south), Tyttenhanger (1 mile north), Shenleybury (1 mile south), Sleapshyde (2 miles north-east) and Colney Heath (2 miles north-east). Larger places within reach include Watford (6 miles south-west), Hemel Hempstead (7 miles west), Stevenage (14 miles north), Welwyn Garden City (7 miles north-east), Harpenden (7 miles north) and Hoddesdon (12 miles east).
Around London Colney
In London Colney, that means kitchens and buildings near White Horse pub, Highfield Park and Samuel Ryder Academy, among other places. For rail, the closest station is Park Street station, about 1.9 miles west of the centre. Well-known places in the area include Napsbury Hospital (0.5 miles west) and St Albans Musical Museum (2.6 miles north-west). Not far away are Verulamium Lake and Broad Colney Lakes.
Common questions in London Colney
Who inspects food businesses in London Colney?
Food hygiene inspections in London Colney are carried out by St Albans City council. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
Can a school canteen extract in London Colney be done out of term time?
Yes, out-of-term visits are normal for schools. Around London Colney, the Food Standards Agency lists about 9 schools and colleges with registered kitchens within a mile and a half or so. You can ring 0345 646 2711 or use the quote form with the dates the site is empty.
What does extract fan cleaning cost?
Every site is different, so each gets its own fixed quote. To get one, call 0345 646 2711, or send details by email with the site type, opening hours and a few pictures.
Are you insured?
Yes. Duct Doctor is fully insured, and the details are available on request.
Can you work evenings and weekends?
Yes, and that’s how we prefer to work. The visit is timed for when the area is not in use, such as late evening, overnight or a weekend.
What information do you need?
Only a few details: where it is, what kind of site, when it’s open and the access. Photos and the last report help too. After that, simply call us on 0345 646 2711 or use the quote form.
Which accreditations do you hold?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We have been trading since 2009 and we are fully insured.
Should the extract fan be cleaned as part of TR19?
Yes. TR19® Grease covers the whole system, fan included. It’s isolated, opened and cleaned along with the canopy, plenum, filters, ducts and discharge.
Keeping the system healthy
Think of this as the after-treatment advice, short and simple:
- Keep each photo report with the maintenance log
- Listen for new noises or vibration from the fan
- Flag smoke lingering at the canopy
- Watch for grease marks around the outlet
The area around the fan is left clean, with waste grease removed. On a roof or outside wall, we leave the surrounding area tidy.
Stick to the interval for the full extract. Regular full cleans keep the fan from building up heavy deposits, in line with BESA guidance.
Nearby places to London Colney
Other services in London Colney
How the visit works
The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. It takes a couple of hours per fan, depending on its size and the build-up, and we clear up before we go. Tell us about any gates, ladders or locked plant areas at your site near London Colney when you book.
- We locate the fan and plan how to reach and isolate it.
- We isolate the power before opening the housing.
- Grease is scraped off the impeller blades and casing.
- The fan is degreased, taking care around the motor.
- It’s closed up, run, checked and photographed for the report.
Before we arrive
- Clear loose items from the work area
- Let us know how we reach the system, including roofs, risers and plant rooms
- Arrange a key holder or contact on site
Ask for a quote
To get a fixed quote, give us a ring on 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. We usually come back within one working day.
Advice
When something else is needed
An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:
- A dirty duct upstream of the fan
- A faulty speed controller or isolator
- Damaged fan blades
If in doubt, call 0345 646 2711 or send us an email and we’ll say what we think before booking.
Where we work
- Roof-mounted fans
- In-line fans
- Axial fans
- Discharge points
- Centrifugal fans
- Fan housings
Leave it or put it right?
Grease on a roof fan can also escape outside. It marks the area around the outlet and leaves more fuel outside, which is one more reason to keep it clean. You choose the date of a planned visit, and a breakdown never asks.
Combining work into one visit or one programme can make for a more efficient booking. Mention every system or site you need covered and we’ll price it together.
What you get with us
- CHAS and SafeContractor accredited, with ISO 9001
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Fixed quotes from a survey or photos
- In business since 2009
See our cost guide or our accreditations.
Landlords, agents and facilities managers
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
We also work for facilities teams across offices, schools and healthcare in London Colney and across Hertfordshire. Work can be phased by floor, building or site around the people who use them.