Hertfordshire · Extract fan cleaning
The Folly extract fan cleaning
Professional extract fan cleaning in and around The Folly, timed so the site keeps working and signed off in writing with photos.
- A fan motor running hot under a coat of grease
- A fan coated in grease inside its housing
- Fat spreading onto the roof or wall by the fan
Extract fan cleaning in The Folly
A clean fan is not a repaired fan. Anything that looks worn or damaged goes on the report, and we also repair and replace extract fans. You will know whether the fan just needed cleaning or something more. If you are dealing with a motor area thick with grease and a fan shaking on its mounts, we can help.
Somewhere as small as The Folly, commercial kitchens are few: perhaps a pub, a school or care home kitchen, or a hall used for events. Each still has a canopy and duct that collect grease.
For insurers and inspectors, the record counts. That’s why every job is written up in a report with pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.

- Place
- The Folly (AL4)
- Region
- Hertfordshire
- Reporting
- Certificate plus before-and-after pictures
- Quotes
- A fixed quote up front
- Working hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Between visits
No system stays clean for ever, but care slows the build-up. A few tips:
- Note any drop in extraction at the canopy
- Notice when the fan starts to sound different
- Keep the grease filters clean and in place
- Report grease escaping from the fan
Once it’s clean, the fan is closed up and run to check it’s working smoothly. If anything seems wrong, from vibration to wear, we note it, so you can plan any repair.
A change in how the fan sounds is worth noting. Rattles, hums or shaking can be early signs of build-up or wear and early action can save a repair.
Nearby places to The Folly
What else we do in The Folly
How the job changes from site to site
Inline duct fans
Inline fans sit within the duct run, often above a ceiling. We get to them through the duct or casing, once they’re isolated.
Fan housings and motors
Belt-driven fans have a drive belt and pulleys that can collect grease. We clean around them and note any wear for your records.
What happens on the day
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool before work begins, and floors and nearby surfaces are sheeted. The work itself takes a couple of hours per fan, depending on its size and the build-up. For a village or hamlet like The Folly, tell us about narrow lanes, gates and parking when you book.
- 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.
- We run the fan and note its condition in the photo report.
Getting ready for the visit
- Move anything stored near the system
- Arrange a key holder or contact on site
- Dig out any earlier paperwork for the system
Getting a quote
For extract fan cleaning in The Folly, ring 0345 646 2711 or send us an email. Tell us what kind of premises it is and when it’s open, and send pictures or your last report if you can. We typically send a fixed quote within one working day.
Advice
The Folly kitchens: local notes
The FSA’s food hygiene register shows about 11 cafés, restaurants and staff canteens within 1.5 miles or so of the middle of The Folly. Grease builds up on fan blades and housings in kitchens like these, unbalancing the impeller. Fire safety in The Folly falls to Hertfordshire Fire and Rescue Service. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel. Environmental health officers from St Albans City council inspect food businesses in The Folly. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Keeping each certificate and photo report on file helps show the extract is looked after.
Church and community hall kitchens, near St Helen's Church or anywhere around The Folly, are easy to forget, but their extracts collect grease like any other. Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Shaw's Corner is about 2 miles north-east), access may need planning. If you run catering at a healthcare site, such as a hospital like St Albans City Hospital about 4.2 miles south, the extract may need cleaning more often than a part-time kitchen.
The Folly is about 2 miles east of Harpenden, in Hertfordshire. Whether your site is in the middle of The Folly or further out, extract fan cleaning is available to all kinds of commercial premises, from a single unit to a large public building. Across Hertfordshire, we cover 381 places, The Folly among them. There’s also a page for London, about 24 miles away.
Here we cover the AL4 postcode area for extract fan cleaning. Whether your site is on Folly Fields and Lower Luton Road or anywhere close by, we can help. Other places close to The Folly include Lea Valley (1 mile west), Amwell (1 mile south), Mackerye End (1 mile north-west), Blackmore End (1 mile north) and Batford (1 mile west). Larger places within reach include Watford (11 miles south), Hemel Hempstead (8 miles south-west), Stevenage (8 miles north-east), St Albans (5 miles south), Welwyn Garden City (5 miles east) and Hitchin (9 miles north).
Landmarks near The Folly
In The Folly, that means kitchens and buildings near Sir John Lawes School and The Cherry Trees pub, among other places. For rail, the closest station is Harpenden station, roughly 2 miles west of the centre. A little further out are St Albans City Hospital (4.2 miles south) and Harpenden Museum (2.2 miles west). Green spaces nearby include Wheathampstead Local Nature Reserve.
Your questions about extract fan cleaning in The Folly
Can you get to a site in The Folly?
Yes. Villages and rural sites across the South East are part of our work, The Folly included. Just mention lanes, gates or anything else about the site when you book.
Which environmental health team covers The Folly?
Food hygiene inspections in The Folly are carried out by St Albans City council. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.
Do we need to close while you work?
Not typically. Booking the work out of hours means the site can carry on as normal. Bigger sites can be done in stages so parts stay in use.
Are you insured?
Yes. We carry full insurance, and we’ve been trading since 2009.
Can you come out in an emergency?
Yes. There’s a 24/7 emergency line, for problems that can’t wait. Ring any time and tell us what’s happened.
Is TR19 cleaning required by law?
No. The law sets the duty; TR19® is the benchmark used to show it’s met. Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person has to manage fire risk, and without records, many insurers may refuse or reduce a claim.
What about areas you cannot get to?
Anything we cannot reach goes on the report, with a note of where it is, and we explain what access is needed, for example new access panels.
Do you provide a report after cleaning the fan?
Before and after pictures go into a report, with anything we noticed. A full clean adds a TR19 certificate from the BESCA Vent Hygiene Elite portal.
Managing agents and facilities teams in The Folly
We regularly work with managing agents. Send the address, what’s needed and how access works, and we will send a fixed quote.
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so records stay tidy.
What affects the cost of extract fan cleaning
Your quote is based on your site. We take into account:
- The size of the system
- Working hours and out-of-hours timing
- How easy every part is to reach
- Whether several sites go on one quote
Combining work into one visit or one programme can make for a more efficient booking. Mention every system or site you need covered, and you will get one fixed quote.
Asking for a quote
We can often survey from photos. Try to include:
- Where the site is and what kind of site it is
- Any previous report or certificate
- The times we could work without disrupting the site
- Detail shots of panels, filters and grilles
There’s no standard price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, and then give you a fixed quote. To start, give us a ring on 0345 646 2711 or drop us a line.
What extract fan cleaning can’t fix
Before you book, it helps to know what’s not included:
- Electrical faults in the fan’s supply or controls (an electrician’s job)
- An undersized fan that can’t cope
- A motor that has burnt out
If in doubt, call 0345 646 2711 or use the quote form and we’ll say what we think before booking.
Where we work
- In-line fans
- Discharge points
- Fan housings
- Roof-mounted fans
- Axial fans
- Centrifugal fans
Leave it or put it right?
Vibration from an unbalanced impeller does not stay small. It can wear the bearings and lead to failure and a kitchen cannot cook safely without extraction. Cleaning it early is far less disruptive. Out of sight is the usual reason a rural system goes too long without attention.
Working hours, access and the scale of the site all affect the cost. Each of those is built into the quote and give you a fixed price before work begins.
Why book with us
- A single point of contact for sites across the South East and London
- Photo reports with every job
- We diagnose before we treat
- In business since 2009
Take a look at how cleaning jobs are priced or our accreditations and certificates.