Hertfordshire · Extract fan repair and replacement
The Folly extract fan repair
We cover The Folly for extract fan repair and replacement. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- An extract fan that rattles or knocks
- A fan worn beyond sensible repair
- An overheating extract motor
Landlords, agents and facilities managers
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We are happy to deal with either side and send the paperwork to whoever needs it.
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Every building has its own written report, so each one has its own record.
Extract fan repair in The Folly, done properly
Working on a fan in The Folly means switching the extract off first, so the job is fitted around the kitchen’s hours. Evenings, overnight and weekends are all possible and there’s a 24/7 emergency line if the fan fails while you are cooking. We are often asked to deal with a humming noise from the fan motor and an extract that vibrates through the ductwork, across fan motors, fan housings and bearings.
For a fan repair in or near The Folly, the more you tell us about the fan, the better the first visit: a photo of the fan, the details on its label and the access arrangements help us plan.
Insurers, fire officers and environmental health officers all look at records. That is 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
- Report and pictures after the visit
- Quotes
- A fixed price before we start
- When we work
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
When something else is needed
In fairness, there are a few things this work will not fix:
- Problems with the electrical supply to the fan (an electrician’s job)
- An extract system that was undersized from the start
- Problems with the gas supply or its interlock valve
If in doubt, phone us on 0345 646 2711 or drop us a line and we will say what we think.
Where we work
- Kitchen extract fans
- Fan motors
- Roof and wall fans
- Belts and pulleys
- Fan housings
- Bearings
Looking after it afterwards
So the system stays in good health:
- Keep the grease filters clean and fitted
- Keep the area around the fan controls clear
- Write down when the fan misbehaves
- Report new noises from the fan early
We run the fan and check it’s steady before we go. We explain the fault and the fix, and anything else we noticed is pointed out.
Small faults, like a worn belt, are quick to fix. Left for months, they can damage the motor or bearings so early attention pays.
The Folly questions
What if my kitchen extract fan stops in The Folly at night?
Extract fan emergencies in The Folly are covered around the clock. Call 0345 646 2711 and tell us what the fan is doing, or not doing. Let us know whether the fan is silent, noisy or tripping the power.
Is The Folly within the area you cover?
Yes. Villages and rural sites across the South East are part of our work, The Folly included. Let us know about access, parking and anything unusual about getting there when you book.
Does the law say we must follow TR19?
No. TR19® itself isn’t 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 TR19® is the benchmark for showing that grease in the extract is under control.
How much notice do you need?
For planned work, earlier is better, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.
What makes a kitchen extract fan rattle or whine?
An unbalanced, greasy impeller vibrates and that is one of the most common reasons. Bearings, belts and mountings can also be to blame.
How do you keep the site clean during the work?
With sheeting and covers, before anything else happens. The work is kept contained and leave the area clean.
What happens if you cannot reach some of it?
We never leave them off the paperwork. You will know exactly which parts weren’t reached and why, and we can quote to improve the access.
Do you look at the system first?
Yes. We always survey first, from your pictures and details, or with a visit where necessary. Then you get a fixed quote.
Fixed quotes for extract fan repair in The Folly
We do not publish a price list, because sites vary so much. The quote depends on:
- Access, including roofs, risers and ceiling voids
- A single visit or a regular plan
- How many systems or sites are involved
- What state the system is in
One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. You will have a fixed price before we start.
What to send for a quote
A few details help us quote accurately. With your enquiry, please include:
- The roof, plant room or outside wall the system runs to
- The site address and the type of premises
- The paperwork from the last visit, if you have it
- Any access panels or hatches you can see
Want a quote for extract fan repair? Please ring 0345 646 2711 or email us with a few details about the site. We will talk you through the work and give you a fixed quote before you commit to anything.
Extract fans in The Folly
Food Standards Agency data counts about 11 cafés, restaurants and staff canteens within 1.5 miles or so of the middle of The Folly. Wherever they cook under a canopy, a failed extract fan stops the kitchen. The Folly, about 24 miles from central London, is within our usual area. Visits are booked around your hours, evenings and weekends included. Kitchens in The Folly get their food hygiene inspections from St Albans City council. Food hygiene rules expect food premises to have suitable and sufficient ventilation. So a failed fan is worth fixing before the next service, not the next month.
A fan that rarely runs, like one in a hall kitchen near St Helen's Church or elsewhere in The Folly, can seize between uses.
The Folly is about 2 miles east of Harpenden, in Hertfordshire. Across the AL4 area, we can carry out extract fan repair at your premises. Our area takes in 381 places across Hertfordshire, from busy centres to quieter spots. There’s also a page for London, roughly 24 miles from The Folly.
Our technicians cover all of AL4 for extract fan repair and the streets around it. Extract fan repair is available to premises on Folly Fields and Lower Luton Road and the roads around them. Neighbouring places we cover for extract fan repair 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). Within a short drive, we also cover 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
Typical jobs here are in premises near Sir John Lawes School and The Cherry Trees pub. For rail, the closest station is Harpenden station, about 2 miles west of the centre. Other landmarks nearby include St Albans City Hospital (4.2 miles south) and Harpenden Museum (2.2 miles west). For a walk, there’s Wheathampstead Local Nature Reserve.
Part by part
Fan controls
Where the fault is in the building’s electrical supply, an electrician is needed. If that’s the cause, we’ll say so so you know who to call.
Motors and bearings
An overheating motor is a warning sign. The cause might be grease restricting the airflow or the motor may be near the end of its life.
Towns and villages near The Folly
What else we do in The Folly
What we are called out for in The Folly
Bearings wear out with heat and long hours. As they wear, you hear a whine or a rumble, and if they’re left they can seize.
Clients normally contact us after spotting one of these:
- An extract fan that rattles or knocks
- A fan that keeps cutting out
- Vibration spreading from the fan into the ducts
- A fan that will not start at all
Holidays are the time to replace a tired kitchen fan at schools such as St Helen's Church of England Primary School, rather than mid-term.
Before booking anyone
- What happens if part of the system cannot be accessed
- If they look at the system before pricing
- Proof of accreditation you can verify
- Whether the work can be done while the site is closed
The process
We are used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. The visit itself takes a few hours for most repairs, longer for a full fan replacement. If the van will struggle with a lane or gateway near The Folly, let us know and we will plan around it.
- First, you tell us the symptoms: noise, shaking, weak extraction or no power.
- With the fan safely isolated, we open it up for a proper look.
- Each part is checked in turn: motor, bearings, drive, impeller and fixings.
- You hear what’s wrong and what it will cost, with a fixed quote, before we go ahead.
- We fix or replace the fan, then test it running before we leave.
Before we arrive
- Tell us where we can park and unload
- Mention any sign-in, permit or induction we need
- Agree a time when the area can be out of use
How to get a quote
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.