Buckinghamshire · Extract fan cleaning
Extract fan cleaning in Thorney, Buckinghamshire
Cleaning of kitchen extract fans, impellers, fan housings and discharge points in Thorney, surveyed first and signed off with a written report and pictures. Ask us for a fixed quote.
- Vibration from an unbalanced impeller
- Fat spreading onto the roof or wall by the fan
- A smell of hot grease from the extract
What extract fan cleaning looks like in Thorney
The FSA’s data shows about 11 pubs, bars and clubs and about 3 hotels and guest houses registered across Thorney and its immediate surroundings (about a mile and a half). Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Environmental health officers from Buckinghamshire council inspect food businesses in Thorney. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. A dated certificate in the maintenance file answers the question before it’s asked. The fire and rescue service for Thorney is Buckinghamshire Fire and Rescue Service. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract.
School kitchens, at schools like St Catherine Catholic Primary School for example, are typically cleaned in the holidays so no lunches are lost. A kitchen near Iver station that serves breakfast and dinner can run its extract twelve hours or more, which shortens the cleaning interval.
Thorney is about 3 miles south-west of Hillingdon, in Buckinghamshire. We carry out extract fan cleaning for commercial premises of every kind in Thorney and the rest of Buckinghamshire. Thorney is one of 263 places in Buckinghamshire we cover for commercial clients. We also work in London, about 17 miles from Thorney.
Here we cover the SL0 postcode area for extract fan cleaning. If your site is just outside Thorney, we cover West Drayton (1 mile east), Yiewsley (1 mile north-east), Cowley (2 miles north), Uxbridge (3 miles north) and Hillingdon (3 miles north-east). We also work in nearby towns such as High Wycombe (14 miles north-west), Chesham (15 miles north), Marlow (13 miles west), Amersham (13 miles north), Beaconsfield (10 miles north-west) and Chalfont St Peter (8 miles north).
Near you in Thorney
In Thorney, that means kitchens and buildings near The North Star pub and Stockley Academy and the streets around them. The closest station to Thorney is Iver station, about 0.7 miles north-west. A little further out are The Pavilions (3 miles north) and Hillingdon Hospital (2 miles north-east). For a walk, there’s Uxbridge Moor and Staines Reservoirs.
Extract fan cleaning in Thorney, done properly
Every TR19® Grease clean includes the extract fan, but a fan can also need attention on its own, especially when it has started to vibrate or sound rough. Where only the fan is cleaned, the report says so. Typical jobs include a fan left out of previous cleans and weak extraction at the canopy, across roof-mounted fans, fan housings and centrifugal fans.
For a kitchen in or near Thorney, the visit is planned around opening hours and the journey, and the clean covers the whole system, as it would anywhere: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we’ve been trading since 2009.
- Where
- Thorney (SL0)
- Wider area
- Buckinghamshire
- Reporting
- Certificate and photo report
- Price
- A fixed price before we start
- Working hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026

Keeping the system healthy
Aftercare is simple, and it helps at the next visit:
- Make sure the fan is included each time
- Leave a clear route to the fan
- Notice when the fan starts to sound different
- Keep the fan on whenever the range is lit
File the photo report with your other extract records. It gives a dated record of the fan’s condition, which helps if anything changes later.
Make sure the fan is reachable. Clear access means it’s never left out of a clean, whether it’s on a roof, in a ceiling or on a wall.
Do you need extract fan cleaning in Thorney?
A fan collects more grease when the filters let more through. Missing, damaged or badly fitted filters let grease travel the whole system, so the fan takes far more than it should.
Clients usually contact us when they notice one of these:
- A smell of hot grease from the extract
- A fan that hums, whines or rumbles
- Less air being pulled from the kitchen
- An extract fan with no cleaning record
Church and community hall kitchens, near St. Leonard's or anywhere around Thorney, are easy to forget, but their extracts collect grease like any other.
Questions to ask before booking
- What hours they’ll be on site
- Exactly which parts of the system are covered
- Whether they’re fully insured
- What records you will receive afterwards
What happens if it’s left?
A fan that fails mid-service can stop a kitchen cooking. Many fan problems start with grease, so keeping it clean is part of keeping it running. If it does fail, our 24/7 emergency line is there. With notice, the visit to Thorney can be fitted around your bookings and events.
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before any work starts.
Why choose Duct Doctor in Thorney
- We diagnose before we treat
- We are fully insured
- Ventilation hygiene specialists since 2009
- Accredited under CHAS and SafeContractor, with ISO 9001
See our cost guide and how to check a contractor.
When something else is needed
An honest diagnosis matters more to us than a booking, so here’s what extract fan cleaning will not do:
- A failed motor or worn bearings (that needs a fan repair or replacement)
- An undersized fan that can’t cope
- Wiring faults to the fan
If you are not sure, just ring 0345 646 2711, or send details by email and we’ll give you a straight answer.
Parts of the system we cover
- Discharge points
- Fan housings
- Roof-mounted fans
- In-line fans
- Centrifugal fans
- Axial fans
What staff can safely do
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
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. Leave those to us.
Towns and villages near Thorney
What else we do in Thorney
Questions from Thorney
Do you work in villages like Thorney?
Yes, Thorney is part of our area, however small the site. Just mention lanes, gates or anything else about the site when you book.
Which fire authority looks after Thorney?
Thorney is in the area of Buckinghamshire Fire and Rescue Service. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
Which sectors do you work in?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
Can the work be done while we’re closed?
Yes. Give us your opening hours with your enquiry and we’ll book around them.
How do you keep the site clean during the work?
Protection goes down first: floor sheeting and covers over nearby surfaces and equipment. We tidy up and take our waste away before we leave.
Can you set up regular visits?
Yes. We run scheduled maintenance contracts, set at the interval the system needs. The report from each visit recommends the next date.
What makes a kitchen extract fan vibrate?
Grease on the blades and housing is one of the usual causes, because it unbalances the fan. Worn bearings and motor problems are others, which our report will flag.
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.
The process
At the end of the visit, someone from your team can look over the work with us. Anything we couldn’t reach or that needs attention is pointed out there and then, and the same goes into the written report. The visit takes a couple of hours per fan, depending on its size and the build-up. The timing of a visit to Thorney is set by you, and the travel is our side of the planning.
- Diagnosis first: we look for grease, noise and vibration.
- Once isolated, we open the fan up.
- Each blade is cleaned so the impeller runs evenly.
- We clean the casing, the outlet and around the motor.
- The fan goes back into service with a report on its condition.
How to prepare
- Let us know about permits to work or site inductions
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Clear loose items from the work area
Get a fixed quote
To help us quote: where the site is, what it is and its opening hours, pictures of the system and the last certificate or report, if there is one. Then phone us on 0345 646 2711 or drop us a line.
Read more
How the job changes from site to site
Impellers and blades
Grease on the leading edges of the blades cuts the fan’s efficiency. Scraping and degreasing them restores their shape, so the fan can run as intended.
Wall fans
Smaller kitchens may extract through a fan on an outside wall. We isolate it, then clean the blades and housing.