Hertfordshire · Extract fan cleaning
Extract Fan Cleaning in South Mimms
Professional extract fan cleaning in and around South Mimms, booked around your opening hours and signed off in writing with photos.
- Thick grease on the impeller and casing
- A fan that hums, whines or rumbles
- Grease stains around the discharge
South Mimms questions
Who would carry out a food hygiene inspection at a kitchen in South Mimms?
Food hygiene inspections in South Mimms are carried out by Hertsmere council. It helps to keep the extract cleaning records with your food safety paperwork, so they’re ready if asked for.
Which fire authority looks after South Mimms?
It’s Hertfordshire Fire and Rescue Service, which covers South Mimms. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
Do you repair extract fans as well as clean them?
Anything beyond cleaning is flagged, with what we found. We offer extract fan repair and replacement, and if it fails outright, our 24/7 emergency line is there.
Do you offer maintenance contracts?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
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.
Is the fan included in a TR19 clean?
Yes, the fan is cleaned as part of TR19. Anything that cannot be reached is recorded, so the record is accurate.
Can you work evenings and weekends?
Yes, and that is how we prefer to work. The visit is timed for when the area is not in use, whether that is late evening, overnight or a weekend.
Extract fan cleaning for kitchens and businesses in South Mimms
Kitchen extract fans come in different forms: fans on the roof, fans built into the duct run, and fans on an outside wall. Each is isolated and opened in its own way and the survey shows us how to reach it. The work covers fan housings, roof-mounted fans and in-line fans, and people most often call us about a fan that no longer moves enough air and a fan left out of previous cleans.
In a small place like South Mimms, kitchens are often in older or extended buildings, with long single-storey duct runs, and those horizontal sections are where grease settles. Access, parking and timings are agreed before the day.
Accreditations are easy to claim and worth checking. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Where
- South Mimms (EN6)
- Region
- Hertfordshire
- Reporting
- TR19® certificate and photo report
- Quote
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What the work involves, part by part
Roof-mounted fans
Many kitchen extracts end at a fan on the roof. They’re cleaned where safe access allows, and anything we cannot reach is recorded.
Wall fans
Wall fans often have a short duct, so grease reaches them quickly. They can need regular attention, which grease readings will show.
How we price extract fan cleaning
Sites vary more than people expect. What affects the quote:
- The number of sites or systems
- Working hours and out-of-hours timing
- Parking and loading at the site
- Access, including roofs, risers and ceiling voids
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we’ll go through it with you.
What we need to know
To help us quote quickly, please include:
- A few general shots of the system
- How we’d reach plant on a roof or in a plant room
- Where the site is and what kind of site it is
- Any access panels or hatches you can see
There’s no standard price list, because every site is different. We look at your system first, from photos or on a visit, then send a fixed quote. To start, call us on 0345 646 2711, or email photos.
What a clean won’t put right
An honest diagnosis matters more to us than a booking, so here’s what extract fan cleaning won’t do:
- An undersized fan that can’t cope
- Grease in the canopy and ductwork
- A motor that has burnt out
If you are not sure, just give us a ring on 0345 646 2711 or email us and we’ll give you a straight answer before booking.
Where we work
- Axial fans
- Roof-mounted fans
- Fan housings
- Centrifugal fans
- Discharge points
- In-line fans
Signs you need extract fan cleaning in South Mimms
The cooler the air, the more grease drops out, and a fan out on a roof or wall often sits where the air is coolest. That makes it a natural place for grease to settle.
Signs it’s time to call us include:
- Burning smells from the fan area
- A fan that hums, whines or rumbles
- A fan shaking on its mounts
- Weak extraction at the canopy
Healthcare kitchens, like those at hospitals such as Shenley Hospital (about 2.7 miles west), often cook for long hours, which puts them in BESA’s heavier-use bands.
Questions to ask before booking
- Whether the price is fixed
- Which accreditations they hold, and whether you can check them
- How they set the interval to the next visit
- Whether a survey comes first
How it works
Your trading hours come first. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we are in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes a few hours where there are several fans or heavy deposits. A quick note on how to find the site and where to park makes a visit to South Mimms run smoothly.
- We find the fan and check how it’s reached and how it’s isolated.
- The fan is isolated so it cannot start while we work.
- The impeller and the housing around it are scraped clean.
- Blades, housing and the area around the motor are degreased with care.
- It’s closed up, run and checked, and pictures go into your report.
How to prepare
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Plan for cooking equipment or plant to be off before we arrive
- Move anything stored near the system
How to get a quote
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and we can price many jobs without a visit.
Related advice
What extract fan cleaning looks like in South Mimms
The FSA’s data shows about 4 pubs, bars and clubs registered in South Mimms and the streets around it, up to about 1.5 miles out. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Kitchens in South Mimms get their food hygiene inspections from Hertsmere council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Before-and-after photos from each clean are a simple way to show the extract is in hand. Hertfordshire Fire and Rescue Service covers South Mimms. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk.
Term dates shape school work: for a school like St Giles' CofE Primary School, an extract clean fits neatly into a half-term or summer break. Volunteers running a hall kitchen near Church of St Giles, or anywhere in South Mimms, may not know when the extract was last cleaned, and a grease test settles it.
South Mimms is about 2 miles west of Potters Bar, in Hertfordshire. Across the EN6 area, we can carry out extract fan cleaning at your premises. South Mimms is one of 381 places in Hertfordshire we cover for commercial clients. There’s also a page for London, about 15 miles away.
Every address in EN6 is covered for extract fan cleaning, from the main roads to the quietest streets. Whether your site is on St Giles' Avenue, Blanche Lane and Greyhound Lane or a nearby road, our technicians can take on the work. Close by, we work in Ridge (1 mile south-west), Dancers Hill (1 mile south-east), Kitts End (2 miles south-east), Well End (2 miles south-west) and Green Street (2 miles south-west). We also work in nearby towns such as Watford (8 miles west), Hemel Hempstead (11 miles west), Stevenage (15 miles north), St Albans (6 miles north-west), Welwyn Garden City (7 miles north) and Harpenden (10 miles north-west).
What’s near South Mimms
Around South Mimms, our work takes us to kitchens and buildings near The White Hart Public House, North Mimms Park and Dame Alice Owen's School. The nearest railway station is Potters Bar station, about 1.6 miles east of the centre. Well-known places in the area include Spires Shopping Centre (2.9 miles south-east) and Shenley Hospital (2.7 miles west). For a walk, there’s Darland's Lake and Furzefield Wood and Lower Halfpenny.
What staff can safely do
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We can diagnose it and quote.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, next to our reports.
What happens if it’s left?
A fan clean in South Mimms does not take long: it takes an hour or two for one fan, longer when it’s hard to reach. Leaving it means more wear, more noise and a bigger clean later. A planned visit to South Mimms is easier to arrange than an emergency callout.
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
Why book with us
- Every job surveyed first
- Full insurance on every job
- One number for every site across the South East and London
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
See our cost guide or our accreditations.