Oxfordshire · Extract fan cleaning
Extract Fan Cleaning in Lewknor
Specialist extract fan cleaning for Lewknor: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- A fan coated in grease inside its housing
- Grease escaping from the fan outlet
- Vibration from an unbalanced impeller
About our extract fan cleaning in Lewknor
If the ducts are the arteries, the fan is the heart. A greasy fan works harder and moves less air. Our job is to clear it, check it runs smoothly and record what we found, before signing it off. We are often asked to deal with grease around the motor and its mounts and a smell of hot grease from the extract, on in-line fans, centrifugal fans and axial fans.
Somewhere as small as Lewknor, commercial kitchens are few: perhaps a pub, a school or care home kitchen, or a hall used for events. Every one of them still needs its extract kept clear of grease, whatever the size of the place.
A written report with pictures follows each visit, so you have a record of what was done and when. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Place
- Lewknor (OX49)
- Wider area
- Oxfordshire
- Paperwork
- TR19® certificate and photo report
- Price
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Page updated
- 30 October 2026

How the job changes from site to site
Inline duct fans
An inline fan can be easy to forget because it’s out of sight. We find it during the survey and include it in the clean.
Kitchens with long cooking hours
When a busy kitchen’s fan fails, cooking stops. A clean fan is less likely to strain, and our 24/7 emergency callout is there if it happens anyway.
What extract fan cleaning can’t fix
Before you book, it helps to know what’s not included:
- A motor that has burnt out
- An undersized fan that cannot cope
- A dirty duct upstream of the fan
If you are not sure, just ring 0345 646 2711 or drop us a line and we will give you a straight answer before you book.
Parts of the system we cover
- Axial fans
- Roof-mounted fans
- Fan housings
- Discharge points
- In-line fans
- Centrifugal fans
Keeping the system healthy
Results last longer with the right care. We suggest:
- Keep the grease filters clean and in place
- Keep records of every fan clean
- Book the fan into every full TR19 clean
- Do not turn the fan off mid-service
When the fan is cleaned as part of a full TR19® Grease clean, a TR19 certificate is issued through the BESCA Vent Hygiene Elite portal. A fan-only clean is recorded in the photo report.
A change in how the fan sounds is worth noting. New noise or vibration often means grease is building on the impeller and early action can save a repair.
Common questions in Lewknor
Can you work in Lewknor outside opening hours?
Yes, nights and weekends are routine for us. The site is handed back ready to open. Tell us your opening hours when you ask for a quote.
Is Lewknor within the area you cover?
Yes. Lewknor is within the area we cover across London and the South East. A survey first, from pictures or a visit, means we arrive with the right kit.
Do you offer maintenance contracts?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, depending on what the system needs.
How often should the extract fan be cleaned?
The fan follows the full system’s interval, from every 3 months for 12 to 16 hours of cooking a day to every 12 months for 2 to 6 hours. Readings may show it needs cleaning more often.
Why has my extract fan got louder?
Build-up on the impeller is a frequent reason, because it unbalances the fan. It can also be wear in the bearings or motor, which our report will flag.
Do you provide a report after cleaning the fan?
A photo report, including the fan’s condition and the next clean date. File it with your other extract records.
Can one contract cover all our sites?
Yes. One number covers all your sites in our area, and visits can be set on a regular cycle.
Is the fan included in a TR19 clean?
Yes. TR19® Grease covers the whole system, fan included. We clean it alongside the canopy, ductwork and discharge.
Common problems we fix in Lewknor
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.
If you notice any of these, it’s worth a diagnosis:
- A fan coated in grease inside its housing
- A fan that has never been cleaned
- A fan that hums, whines or rumbles
- Vibration from an unbalanced impeller
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Thame Community Hospital is the nearest hospital to Lewknor, about 5 miles north.
What to look for in a quote
- When the next visit should be, and why
- Whether the quote is based on a survey or photos
- Whether VAT is included
- What’s included in the scope, part by part
Places near Lewknor
Also in Lewknor
Why deal with it now?
A fan that sounds rough in Lewknor is often telling you the extract needs a clean. Grease on the fan means grease in the duct before it, so it’s worth checking the whole system. A planned visit to Lewknor is easier to arrange than an emergency callout.
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we’ll explain each part.
Why choose Duct Doctor in Lewknor
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- A written report with photos after each visit
- Full insurance on every job
- Ventilation hygiene specialists since 2009
Landlords, agents and facilities managers
We also work for facilities teams across offices, schools and healthcare across Oxfordshire. Larger estates can be phased building by building to keep disruption down.
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party, and the report can go to both.
What extract fan cleaning looks like in Lewknor
In Lewknor, food businesses are inspected by environmental health officers from South Oxfordshire council. Extraction counts as kitchen equipment, so its condition can come up on the day. Our report lists what was cleaned and when, which is useful to have ready. Lewknor sits within the area of Oxfordshire Fire and Rescue Service. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises.
Where a hall near Church of St Margaret, or anywhere in Lewknor, hosts lunch clubs or events, its extract gathers grease just as a café’s does. If you look after a school kitchen, at a school such as Lewknor Church of England Primary School or anywhere near Lewknor, the holidays are the usual time for a TR19® clean.
Lewknor is about 5 miles south of Thame, in Oxfordshire. From the centre of Lewknor to the outskirts, extract fan cleaning is available to all kinds of commercial premises, from a single unit to a large public building. We cover 443 places across Oxfordshire, large and small. Oxford is in our area too, about 12 miles from Lewknor.
We work across the OX49 postcode area for extract fan cleaning and the streets around it. You’ll find streets such as High Street, Weston Road and Lewknor Close, and we cover them all for extract fan cleaning. We also cover South Weston (1 mile north-west), Aston Rowant (1 mile north-east), Postcombe (1 mile north), Shirburn (1 mile south-west) and Kingston Blount (2 miles north-east). Within a short drive, we also cover Oxford (12 miles north-west), Didcot (13 miles west), Abingdon-on-Thames (13 miles west), Thame (5 miles north), Henley-on-Thames (10 miles south) and Benson (7 miles south-west).
Around Lewknor
Typical jobs here are in premises near Ye Olde Leathern Bottle Public House and Icknield Community College. A little further out are Thame Community Hospital (5 miles north). Open spaces near Lewknor include Aston Rowant NNR and Bald Hill.
The process
We turn up at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool before any work starts, and floors and nearby surfaces are sheeted. On site, it takes an hour or two for most single fans. If you can send pictures, we can arrive in Lewknor knowing what to expect.
- We start by checking where the fan sits and how to isolate it.
- Power to the fan is isolated before anyone touches it.
- We remove the grease from the blades, impeller and casing.
- We degrease the fan and housing, taking care around the motor.
- We reassemble, run the fan and photograph the result.
Preparing for the visit
- Let us know how we reach the system, including roofs, risers and plant rooms
- Tell us about site rules, permits or sign-in
- Tell us where we can park and unload
Getting a quote
Here’s what helps us quote: the address, the type of site and when it’s open, a few pictures and any previous report or certificate. Then ring 0345 646 2711 or use the quote form.