Oxfordshire · Extract fan cleaning
Extract fan cleaning in Crowell, Oxfordshire
Extract fan cleaning in Crowell from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- A motor area thick with grease
- Thick grease on the impeller and casing
- Vibration from an unbalanced impeller
About our extract fan cleaning in Crowell
Any fan serving a kitchen in Crowell is cleaned the same careful way as anywhere else: we isolate it, open the housing, scrape the impeller and degrease the lot. Your report shows the impeller as we found it and as we left it. Common call-outs are for vibration from an unbalanced impeller and weak extraction at the canopy, across axial fans, discharge points and roof-mounted fans.
Work in a small place like Crowell starts with a call to agree access and timings, and the clean covers the whole system, as it would anywhere: canopy to discharge, then a TR19® certificate and a photo report.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.

- Place
- Crowell (OX39)
- Wider area
- Oxfordshire
- Paperwork
- Certificate and photo report
- Quotes
- A fixed price before any work starts
- Hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Crowell: your questions answered
Is Crowell within the area you cover?
Yes. Villages and rural sites across the South East are part of our work, Crowell included. Photos of the system and directions to the site help us plan the visit.
Can the work in Crowell be done at night or at weekends?
Yes. We work evenings, overnight and at weekends. Your customers, staff or residents in Crowell needn’t be disturbed. Just phone us on 0345 646 2711, or email photos with your opening times and we will plan around them.
What types of premises do you cover?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
How long does extract fan cleaning take?
Allow a few hours where there are several fans or heavy deposits. Your quote will give an idea.
Should the extract fan be cleaned as part of TR19?
Yes, a full TR19 clean includes the fan. If a fan cannot be reached, the report says so, so you always know what was cleaned.
Does the law say we must follow TR19?
No. TR19® itself is not law; it’s a BESA specification. The legal duty comes from the Regulatory Reform (Fire Safety) Order 2005: the responsible person must assess and reduce fire risk, and cleaning to TR19® is the recognised way to show grease is under control.
How often should the extract fan be cleaned?
It’s cleaned with the whole extract, 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.
Do you survey before quoting?
Yes, always. Diagnosis comes before treatment: the survey shows what needs doing and what access we need and the fixed quote is built on it.
How we price extract fan cleaning
We quote each job individually. This is what makes a difference:
- Travel, parking and unloading
- When the work can happen, such as evenings, overnight or weekends
- One-off work versus a regular cycle
- Any permits to work or inductions
We don’t list prices on the website, because each job is priced on what it involves. For a fixed quote, give us a ring on 0345 646 2711 or email us, and we will talk you through it.
What we need to know
To help us quote quickly, send us:
- Detail shots of panels, filters and grilles
- A few general shots of the system
- The paperwork from the last visit, if you have it
- How we’d reach plant on a roof or in a plant room
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, the quote is fixed before any work is booked.
Crowell kitchens: local notes
There are about 5 cafés, restaurants and staff canteens within 1.5 miles or so of the middle of Crowell, according to the Food Standards Agency’s register. The fan at the end of each of those extracts collects grease that slows it and wears the motor. Fire safety in Crowell falls to 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. In Crowell, food businesses are inspected by environmental health officers from South Oxfordshire council. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. A TR19® certificate and photo report after each clean gives you a record to show an inspector.
School kitchens, at schools like Mill Lane Community Primary School for example, are usually cleaned in the holidays so no lunches are lost. If you run catering at a healthcare site, such as a hospital like Thame Community Hospital about 4.2 miles north-west, the extract may need cleaning more often than a part-time kitchen.
Crowell is about 4 miles south-east of Thame, in Oxfordshire. Wherever you are in the OX39 postcode area, we cover extract fan cleaning for commercial sites. Crowell is one of 443 places in Oxfordshire we cover for commercial clients. You can also see our page for Oxford, roughly 14 miles from Crowell.
Postcode districts we cover here for extract fan cleaning: OX39. Close by, we work in Kingston Blount (1 mile west), Oakley (1 mile north-east), Crowell Hill (1 mile south-east), Aston Rowant (1 mile south-west) and Postcombe (2 miles west). Larger places within reach include Oxford (14 miles west), Didcot (15 miles west), Abingdon-on-Thames (15 miles west), Thame (4 miles north-west), Henley-on-Thames (11 miles south) and Benson (9 miles south-west).
What’s near Crowell
Around Crowell, our work takes us to kitchens and buildings near The Shepherd's Crook pub. For rail, the closest station is Princes Risborough station, about 3.9 miles north-east of the centre. Nearby you will also find Thame Community Hospital (4.2 miles north-west). For a walk, there’s Oakley Hill nature reserve and Bald Hill.
What happens if it’s left?
A fan that sounds rough in Crowell is often telling you the extract needs a clean. If the fan is coated, the duct before it normally is too so a full TR19 clean may be due. Rural sites can’t always move to another kitchen or room when something fails.
Every site is different, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all make a difference.
Why Crowell businesses choose us
- CHAS, SafeContractor and ISO 9001
- In business since 2009
- A fixed price before any work starts
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
Read our cost guide and our accreditations.
Landlords, agents and facilities managers
Facilities teams in offices, schools and healthcare sites book us too in Crowell and across Oxfordshire. Larger estates can be phased building by building around the people who use them.
Multi-site operators often want one contractor and one number. We cover South East England and London, so a run of sites can go into one programme and kept on a regular cycle.
Places near Crowell
More services for Crowell
Common problems we fix in Crowell
A fan collects more grease when the filters let more through. When filters do not seal, grease goes straight through to the fan, so the fan takes far more than it should.
If you notice any of these, it’s worth a diagnosis:
- A fan that hums, whines or rumbles
- Grease stains around the discharge
- A smell of hot grease from the extract
- Vibration from an unbalanced impeller
Church and community hall kitchens, near Church of the Nativity of the Blessed Virgin Mary or anywhere around Crowell, are easy to forget, but their extracts collect grease like any other.
Questions to ask before booking
- What records you will receive afterwards
- What happens if part of the system can’t be accessed
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- How they set the interval to the next visit
What a clean will not put right
Not every problem is solved by extract fan cleaning, and we’d rather say so up front. It doesn’t solve:
- A faulty speed controller or isolator
- An impeller that’s bent or split
- A dirty duct upstream of the fan
If you’re not sure, just give us a ring on 0345 646 2711 or send us an email and we will give you a straight answer before booking.
What the work covers
- Axial fans
- Roof-mounted fans
- Discharge points
- Centrifugal fans
- In-line fans
- Fan housings
Different parts, different methods
Wall fans
A wall fan pushes the air straight outside. We isolate it, then clean the blades and housing.
Inline duct fans
Inline fans can be in tight spaces, so we plan how to reach and clean them. Anything out of reach is recorded.
What we do, step by step
Our technicians bring everything the work needs, from protective sheeting to tools and access equipment. All we need from you is clear access and the right equipment switched off. On site, the work takes a few hours where there are several fans or heavy deposits. Somewhere as small as Crowell, the date and timings are agreed with you well before the day.
- 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.
- Blades, housing and surrounds are degreased with care around the electrics.
- It’s closed up, run, checked and photographed for the report.
How to prepare
- Plan for cooking equipment or plant to be off before we arrive
- Arrange a key holder or contact on site
- Let us know about permits to work or site inductions
Get a fixed quote
Need a price for extract fan cleaning? Please give us a ring on 0345 646 2711, or email photos and tell us about the site. We will explain what we’d do and send a fixed quote before you commit to anything.