Greater London · Extract fan repair and replacement
Extractor fan repair in St John's Wood
Our technicians work in St John's Wood on extract fan repair and replacement. Fixed quotes, work around your opening hours and photo reports as standard.
- A knocking noise from the extract fan
- Vibration spreading from the fan into the ducts
- A fan worn beyond sensible repair
Do you need extract fan repair in St John's Wood?
Kitchen extract fans in St John's Wood face the same conditions as anywhere else: heat, grease, steam and long running hours. Condensation can corrode parts, and age catches up with every fan in the end.
Common reasons sites call us include:
- Vibration spreading from the fan into the ducts
- A belt-driven fan that squeals
- A fan rattling in its housing
- A fan that won’t start at all
Holidays are the time to replace a tired kitchen fan at schools such as George Eliot Primary School, rather than mid-term.
What to look for in a quote
- How areas they cannot reach will be recorded
- How VAT is shown on the quote
- Whether they recommend a next date
- If the quote is a fixed price or an estimate
Extract fan repair in St John's Wood, done properly
If an extract fan in St John's Wood is struggling or has stopped, we find the cause and quote a fixed price to repair or replace it. For a fan that fails during service, there’s a 24/7 emergency callout. The work covers fan motors, fan housings and belts and pulleys, and the jobs we see most are a fan running too slowly to clear the kitchen and a fan that whines, hums or grinds.
Replacing a fan in a London building often means working at height or in a tight plant space, with parking and lifting to arrange in St John's Wood. Repairs can be done out of hours so the kitchen keeps trading.
We have been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Where
- St John's Wood (NW8, NW6, NW3)
- Wider area
- Greater London
- Paperwork
- Photo report after every visit
- Quotes
- A fixed quote up front
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Aftercare tips
Results last longer with the right care. We suggest:
- Clean or change filters on schedule
- Keep the area around the fan controls clear
- Avoid lowering the speed to quieten a fault
- Never run the extract with filters missing
Clean filters help a repaired fan stay that way. Less grease on the impeller means less wear and the quieter it runs.
A slipping belt or a loose mount is a small job. Left for months, they can damage the motor or bearings so early attention pays.
Extract fan repair in St John's Wood: local notes
There are about 1,034 restaurants, cafés and canteens and about 301 takeaways and sandwich shops within 1.5 miles or so of the middle of St John's Wood, according to the Food Standards Agency’s register. Every one of them that cooks under a canopy depends on its extract fan to keep cooking. Environmental health officers from Camden council inspect food businesses in St John's Wood. A kitchen with no working extract can fall short of the suitable and sufficient ventilation food hygiene rules expect. A kitchen without a working fan has a problem to fix quickly. Lifting a replacement fan onto a London roof can need a loading slot and the building’s agreement.
Occasional-use kitchens, such as a hall kitchen near Church of All Souls or elsewhere in St John's Wood, are where a stiff or seized fan can turn up. If you run a kitchen close to South Hampstead station and the extract fan is getting noisy, a planned repair after closing beats a breakdown at the rush.
St John's Wood is about 1 mile south of Hampstead, in Greater London. We provide extract fan repair for businesses, landlords and public buildings in St John's Wood and the rest of Greater London. Across Greater London, we cover 764 places, and St John's Wood is one of them.
All of NW8, NW6 and NW3 is covered for extract fan repair, from the main roads to the quietest streets. If you need extract fan repair at premises on The Lane, Hall Road and Hill Road or anywhere close by, our technicians can take on the work. With the A5205 close by, St John's Wood is easy for our technicians to reach for extract fan repair. Neighbouring places we cover for extract fan repair include South Hampstead (1 mile north), Swiss Cottage (1 mile north), Primrose Hill (1 mile north-east), Lisson Grove (1 mile south) and Haverstock (1 mile north-east). We also work in nearby towns such as London (4 miles south-east), Kensington (3 miles south-west), St Pancras (3 miles east), Shoreditch (4 miles east), Walthamstow (7 miles north-east) and Hoxton (4 miles east).
Around St John's Wood
We work in commercial kitchens and buildings around Cecil Sharp House, Primrose Hill and Arnold House School, among other places. You’ll also find Quintin Kynaston Community Academy (under half a mile north-west) and Cafe Med pub (under half a mile north-west). St John's Wood has its own railway station: South Hampstead station. A little further out are Hospital of St John and St Elizabeth (less than half a mile south) and Montfichet's Tower (3.5 miles south-east). Not far away are The Long Water and Primrose Hill.
How it works
We’re used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. The visit itself takes a few hours on site, depending on the fault and the access to the fan. Night and weekend working is normal for us in London, and a site in St John's Wood is no exception.
- We start with the symptoms, such as rattling, humming, slow running or a fan that won’t start.
- Power to the fan is isolated before we open the housing.
- The impeller, bearings, belts or drive, motor and mounts are all inspected.
- You get our diagnosis and a fixed quote to repair or replace.
- The repair or replacement is carried out and the fan is run and checked.
Getting ready for the visit
- Agree a time when the area can be out of use
- Let us know how we reach the system, including roofs, risers and plant rooms
- Make sure equipment near the work can be switched off and left to cool
How to get a quote
Want a quote for extract fan repair? Please phone us on 0345 646 2711 or drop us a line with a few details about the site. We will talk you through the work and send you a fixed quote before you commit to anything.
Advice
When it’s something else
In fairness, there are a few things this work will not fix:
- Faults in the building’s electrical supply, which need an electrician
- Faults on the gas side of an interlock system, which need a Gas Safe registered engineer
- Smells from the discharge that need odour control equipment
If in doubt, call us on 0345 646 2711 or use the quote form and we’ll say what we think.
Parts of the system we cover
- Bearings
- Fan housings
- Roof and wall fans
- Kitchen extract fans
- Fan motors
- Belts and pulleys
Also near St John's Wood
What else we do in St John's Wood
What affects the quote in St John's Wood
The survey tells us what the work involves. We look at:
- The condition of the system
- The size of the system
- One-off work versus a regular cycle
- Whether several sites go on one quote
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are unsure, call 0345 646 2711, or email photos and we’ll give you an honest view and a fixed quote.
What we need to know
A few details help us quote accurately. With your enquiry, please include:
- Any access panels or hatches you can see
- Problems your staff have spotted
- The site address and the type of premises
- Wide pictures of the system and the area around it
If you need extract fan repair in St John's Wood, give us a ring on 0345 646 2711 or send us an email. Let us know the site type and the opening hours, plus pictures or the previous report if they’re to hand. We usually send a fixed quote within one working day.
For landlords and multi-site operators
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements and we’ll come back with a fixed quote.
We also work for facilities teams across offices, schools and healthcare across Greater London. Work can be phased by floor, building or site around the people who use them.
St John's Wood questions
Who would carry out a food hygiene inspection at a kitchen in St John's Wood?
Kitchens in St John's Wood are inspected by Camden council’s environmental health officers. If the extract fan has failed, it’s worth having the repair booked, and the details to hand, before an officer visits.
Is parking a problem for work in St John's Wood?
London parking can be tight, so details of loading bays and permits help. Where restrictions apply in the day, an evening or overnight visit usually gets round them.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line, for problems that cannot wait. Ring any time and tell us what’s happened.
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 are fully insured.
Can you look after several sites?
Yes. Tell us the addresses and what each needs and we’ll quote them together.
What should go in our maintenance log?
Everything that shows the system is looked after: our reports and pictures, any certificates and your in-house logs. A single log for each site works best.
Can you repair a fan rather than replace it?
That depends on what we find. After diagnosing, we explain whether it can be repaired, then give you a fixed quote.
How much notice should we give?
The more notice, the better, particularly for night and weekend visits. We normally quote within one working day, and there’s a 24/7 line for emergencies.
Why act early in St John's Wood
Where the cooking gas supply is interlocked with the extract, a failed fan can stop the kitchen cooking. Even without an interlock, cooking without extraction is not sensible and fixing the fan early avoids a forced shutdown. London buildings are shared, so a fire or failure in one system can reach the neighbours above and beside you.
No two sites are the same, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
Why choose Duct Doctor in St John's Wood
- Fixed quotes from a survey or pictures
- Survey first, then a fixed quote
- One number for every site across the South East and London
- Out-of-hours work and a 24/7 emergency line
Take a look at our cost guide and how to check a contractor.