Hertfordshire · Extract fan repair and replacement
Extract Fan Repair in Nettleden
Professional extract fan repair in and around Nettleden, booked around your opening hours and signed off in writing with pictures.
- A fan worn beyond sensible repair
- A knocking noise from the extract fan
- An extract that vibrates through the ductwork
Extract fan repair in Nettleden
If an extract fan in Nettleden is struggling or has stopped, we find the cause and quote a fixed price for the repair or the replacement. When the fan gives up mid-service, our 24/7 emergency line is there. The work covers bearings, belts and pulleys and roof and wall fans, and people most often call us about an old fan that needs replacing and a motor that trips out or overheats.
For a fan repair in or near Nettleden, the more you tell us about the fan, the better the first visit: photos of the fan, its rating plate and how to reach it all help.
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 carry full insurance.

- Place
- Nettleden (HP1)
- Region
- Hertfordshire
- Reporting
- Report and pictures after the visit
- Quote
- Fixed quote, typically within a working day
- Hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Staff cleaning versus specialist work
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.
How the job changes from site to site
Roof and wall-mounted fans
Fans outside are exposed to rain and condensation. Rust on fixings and housings is a frequent find.
Direct-drive fans
An impeller coated in grease vibrates straight into the motor bearings. Sometimes a clean is all it needs as long as the bearings are still sound.
Extract fans in Nettleden
Look up Nettleden on the FSA’s food hygiene register and you’ll find about 6 restaurants, cafés and canteens and about 3 takeaways within roughly a mile and a half of the centre of Nettleden. Every one of them that cooks under a canopy depends on its extract fan to keep cooking. We cover Nettleden, about 27 miles from central London, as part of our work across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site. Environmental health officers from Dacorum council inspect food businesses in Nettleden. Ventilation is part of food hygiene law, which expects it to be suitable and sufficient. That’s one more reason not to keep cooking with a broken fan.
If you manage a school such as Great Gaddesden Church of England Primary School and the kitchen fan is getting louder, the next break is the time to deal with it. If you run a church or community hall kitchen, near Church of St Lawrence or elsewhere in Nettleden, an extract fan that rarely runs can seize or fail when it’s needed.
Nettleden is about 3 miles north-east of Berkhamsted, in Hertfordshire. Whether your site is in the middle of Nettleden or further out, we cover extract fan repair for every kind of premises, from a single unit to a large public building. We cover 381 places across Hertfordshire, large and small. You can also see our page for Milton Keynes, roughly 20 miles from Nettleden.
Postcode districts we cover here for extract fan repair: HP1. Nearby, we also carry out extract fan repair in Frithsden (1 mile south-west), Great Gaddesden (1 mile north-east), Potten End (1 mile south), Fields End (2 miles south) and Ashridge (2 miles north-west). Larger places within reach include Watford (10 miles south-east), Hemel Hempstead (3 miles south-east), St Albans (9 miles east), Welwyn Garden City (14 miles east), Harpenden (8 miles east) and Hatfield (12 miles east).
What’s near Nettleden
Around Nettleden, our work takes us to kitchens and buildings near John F Kennedy Catholic School and the streets around them. Nettleden’s nearest station is Berkhamsted station, roughly 2.2 miles south-west. A little further out are Hemel Hempstead Hospital (3.1 miles south-east). Green spaces nearby include Long Deans.
What extract fan repair can’t fix
Extract fan repair cannot fix everything, and we’ll tell you before work begins. It does not solve:
- Smells from the discharge that need odour control equipment
- Gas interlock faults that a Gas Safe registered engineer must deal with
- Ductwork designed too small for the kitchen’s cooking
Not sure which it is? You can ring 0345 646 2711 or use the quote form and we will tell you honestly before booking.
What we work on in Nettleden
- Bearings
- Belts and pulleys
- Fan motors
- Fan housings
- Roof and wall fans
- Kitchen extract fans
What we do, step by step
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the work takes a few hours on site, depending on the fault and the access to the fan. Somewhere like Nettleden, lanes, gates and parking are worth mentioning in advance.
- We agree a time to attend, out of hours if needed.
- The extract is switched off and the fan opened up.
- We inspect every moving part and the fixings.
- You hear whether repair or replacement makes sense, with a fixed quote.
- We complete the work and check the fan runs smoothly.
How to prepare
- Tell us where we can park and unload
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Agree a time when the area can be out of use
Ask for a quote
For a fixed quote, call 0345 646 2711 or send us an email with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. We typically come back within one working day.
Advice
Nettleden: your questions answered
Can you come out to a failed extract fan in Nettleden out of hours?
We run a 24/7 emergency line for failed extract fans, and Nettleden is part of our area. Phone 0345 646 2711 and we will talk through the fault and access. If you can, stop cooking until the fan is checked.
Which environmental health team covers Nettleden?
Kitchens in Nettleden are inspected by Dacorum council’s environmental health officers. Keeping the fan serviced is easier than explaining a broken one on inspection day.
Does the law say we must follow TR19?
No. The law sets the duty; TR19® is the benchmark used to show it’s met. Under the Fire Safety Order 2005, the responsible person must reduce fire risk, and without records, many insurers may refuse or reduce a claim.
Do I get a report after the visit?
Yes. It’s your proof that the work was done: a dated report with photos, listing the work and any areas we couldn’t reach.
How long does an extract fan repair take?
As a guide, it takes anything from an hour or two to a full visit, depending on the fault. Where parts need ordering, we will explain the timescale.
Do you work with multi-site operators?
Yes. We work across South East England and London, so sites at different addresses can be planned together as one programme. Every site has its own report.
Do you have insurance?
Yes. We’re fully insured, and we can share the details when you need them.
Will you fit a new fan if ours cannot be repaired?
Yes, when repair doesn’t make sense. We check the duct size and the extract the kitchen needs before recommending a unit.
Nearby places to Nettleden
More services for Nettleden
Keeping the system healthy
Good habits slow the build-up between visits. A few tips:
- Keep a record of any trips or stoppages
- Get a noisy fan checked rather than slowed down
- Never run the extract with filters missing
- Keep access to the fan controls unobstructed
If parts have to be ordered, we tell you how the kitchen can carry on in the meantime. The fan is completed on a return visit at a time that suits your service.
Clogged filters make the fan strain. Keeping filters clean eases the strain and protects the motor.
Multi-site and managed buildings
Running several sites is easier with one contractor. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We’re happy to deal with either side and send the paperwork to whoever needs it.
Leave it or put it right?
In Nettleden, as elsewhere, an extract fan may well sit outside on a wall or roof, so its noise doesn’t stay in the kitchen. Dealing with the fault brings the noise back down before neighbours notice. Planning a trip to Nettleden ahead is easier for everyone than a rushed one.
The cost depends on how big the system is, what state it’s in and how easy it is to reach. We give you a fixed price before we start, so you know where you stand.
Why book with us
- One contact for all your sites in London and the South East
- A written report with photos after each visit
- Trading since 2009
- CHAS and SafeContractor accredited, with ISO 9001
See what affects the cost or our accreditations and certificates.