Kent · Extract fan cleaning
Extract Fan Cleaning in Cotman's Ash
Extract fan cleaning in Cotman's Ash from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- A heavily greased fan housing
- Grease stains around the discharge
- An extract fan with no cleaning record
Aftercare tips
Results last longer with the right care. Here’s what we suggest:
- Never cook with a filter missing
- Listen for new noises or vibration from the fan
- Note any drop in extraction at the canopy
- Check the report shows the fan was cleaned
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.
The fan stays cleaner when less grease gets past the canopy. Keep the grease filters clean, fitted and in place, and replace any that are damaged.
Extract fan cleaning in Cotman's Ash, done properly
In Cotman's Ash, as everywhere we work, the fan follows a set routine: isolated first, then opened, scraped and degreased. The result is photographed for your records. The work covers axial fans, in-line fans and roof-mounted fans, and the jobs we see most are grease stains around the discharge and a fan motor running hot under a coat of grease.
In a small place like Cotman's Ash, kitchens are often in older or extended buildings, with long single-storey duct runs, where grease settles in the flat sections. We agree access and timings in advance.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Location
- Cotman's Ash (TN15)
- Region
- Kent
- Reporting
- TR19® certificate and photo report
- Quote
- Fixed quote, usually within a working day
- Hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
What happens on the day
Before we leave, we walk the area with whoever is on site. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. All told, the work takes an hour or two for one fan, longer when it’s hard to reach. A quick note on how to find the site and where to park makes a visit to Cotman's Ash run smoothly.
- First we check the fan’s condition and how it sounds.
- With the fan isolated, the housing is opened.
- 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.
Preparing for the visit
- Find the previous report, if there is one
- Agree a time when the area can be out of use
- Plan for cooking equipment or plant to be off before we arrive
Ask for a quote
Some systems can be priced from photos; others need a survey. 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.
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Multi-site and managed buildings
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We can quote either party and send the paperwork to whoever needs it.
Multi-site operators often want one contractor and one number. We work across London and the South East, so a run of sites can go into one programme and kept to a regular schedule.
Do you need extract fan cleaning in Cotman's Ash?
Grease on a fan is a fire risk, in Cotman's Ash as anywhere. If grease in the duct catches, the fan and its housing can feed the fire, and a hot, struggling motor does not help.
It’s time to book a visit if you see:
- Thick grease on the impeller and casing
- Weak extraction at the canopy
- A fan left out of previous cleans
- A fan motor running hot under a coat of grease
A hospital like Sevenoaks Hospital, about 2.8 miles south-west, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
What to look for in a quote
- What records you will receive afterwards
- What’s included in the scope, part by part
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether the figure could change on the day
Also near Cotman's Ash
More services for Cotman's Ash
Cotman's Ash: your questions answered
Which council inspects kitchens in Cotman's Ash?
Kitchens in Cotman's Ash are inspected by Sevenoaks council’s environmental health officers. It helps to keep the extract cleaning records with your food safety paperwork, so they’re ready if asked for.
Can school kitchens in Cotman's Ash be cleaned in the holidays?
Yes, holiday work suits schools best. Around Cotman's Ash, the Food Standards Agency lists about 4 schools and colleges with registered kitchens within a mile and a half or so. You can give us a ring on 0345 646 2711 or send us an email with the dates the site is empty.
Does a TR19 kitchen extract clean cover the fan?
Yes, it should be. The whole system is cleaned, from the canopy to the discharge, and the fan is a key part of it, so it’s cleaned too.
How much does extract fan cleaning cost in Cotman's Ash?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. We fix the price before any work starts.
Which accreditations do you hold?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
What happens to the waste?
Anything we remove is contained as we work and taken away with us, from grease and debris to used cleaning water. None of it is left on site.
Can you come out in an emergency?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
How much notice do you need?
Book as early as you can for planned work, especially if the next clean or test is due soon. For emergencies, we take calls 24/7.
Different parts, different methods
Wall fans
Grease can mark the outside wall around the fan. The outlet is checked as well as the fan.
Impellers and blades
A clean impeller shows any damage: chips, distortion or wear. Anything we see goes on the report.
Kitchen extracts in Cotman's Ash
In Cotman's Ash, food businesses are inspected by environmental health officers from Sevenoaks council. Extraction counts as kitchen equipment, so its condition can come up on the day. Keeping each certificate and photo report on file helps show the extract is looked after. Cotman's Ash is covered by Kent 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.
Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Lullingstone Castle is about 3.4 miles north-west), access may need planning. Volunteers running a hall kitchen near Church of Saint Mary the Virgin, or anywhere in Cotman's Ash, may not know when the extract was last cleaned, and a grease test settles it.
Cotman's Ash is about 3 miles north-east of Sevenoaks, in Kent. Wherever you are in the TN15 postcode area, we cover extract fan cleaning for commercial sites. Across Kent, we cover 922 places, and Cotman's Ash is one of them. There’s also a page for Maidstone, roughly 13 miles from Cotman's Ash.
Work in TN15 is surveyed, quoted and booked the same way as anywhere else. Close by, we work in Woodlands (1 mile north-east), Heaverham (1 mile south-east), Knatts Valley (1 mile north), Romney Street (1 mile north-west) and Kemsing (1 mile south-west). Within a short drive, we also cover Maidstone (13 miles east), Dartford (9 miles north), Sevenoaks (3 miles south-west), Royal Tunbridge Wells (13 miles south), Gravesend (10 miles north-east) and Tonbridge (8 miles south).
Local landmarks in Cotman's Ash
Around Cotman's Ash, our work takes us to kitchens and buildings near The Rising Sun pub and Kemsing Down, among other places. The closest station to Cotman's Ash is Kemsing station, roughly 1.4 miles south. Other landmarks nearby include Kemsing Castle Bank (0.9 miles south-west) and Sevenoaks Hospital (2.8 miles south-west). Open spaces near Cotman's Ash include Dryhill Nature Reserve.
Fixed quotes for extract fan cleaning in Cotman's Ash
The price is fixed before any work begins. It takes into account:
- Where the site is and how we reach it
- How easy every part is to reach
- How many systems or sites are involved
- One-off work versus a regular cycle
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we’ll go through it with you.
Asking for a quote
Many jobs can be priced from photos and some basics. Useful things to send:
- Detail shots of panels, filters and grilles
- The paperwork from the last visit, if you have it
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- The times we could work without disrupting the site
There’s no standard price list, because no two systems are the same. We look at your system first, from pictures or on a visit, and then give you a fixed quote. To get going, ring 0345 646 2711 or use the quote form.
What your team can do, and what needs us
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. What they cannot safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.