Greater London · Extract fan repair and replacement

Childs Hill extract fan repair

Extract fan repair and replacement for businesses, landlords and public buildings in Childs Hill. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.

  • A fan shaking on its mountings
  • An overheating extract motor
  • A fan that whines, hums or grinds

Extract fan repair in Childs Hill

How we handle extract fan repair in Childs Hill

Extract fan repair starts with a diagnosis. A noisy fan might need cleaning, new bearings or a new belt, while a fan that won’t start may have a motor or control fault. You hear what we have found before any work goes ahead. If you are dealing with a whining or grinding extract motor and an extract fan that has stopped working, we can put it right.

In London, getting a new fan to the roof or plant room can take planning, and in Childs Hill, parking and lifting are part of that. Work can be done after service, so the kitchen loses as little time as possible.

Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.

Duct Doctor duct and vent cleaning vans lined up in a car park with the team
Location
Childs Hill (NW2, NW3, NW11)
Wider area
Greater London
Reporting
Written report with photos
Quote
A fixed price before work begins
Hours
Out of hours as standard, 24/7 emergency line
Phone
0345 646 2711
Reviewed
30 October 2026

Common problems we fix in Childs Hill

Some grease always slips past the filters and reaches the fan. Deposits gather on the blades, never quite evenly, so the fan runs out of balance and starts to vibrate and rattle.

It’s time to book a visit if you see:

  • An old fan that needs replacing
  • A whining or grinding extract motor
  • An extract fan that rattles or knocks
  • Weak extraction and a smoky kitchen

If you run a church or community hall kitchen, near All Saints or elsewhere in Childs Hill, an extract fan that rarely runs can seize or fail when it’s needed.

Questions to ask before you book

  • What records you will receive afterwards
  • How they set the interval to the next visit
  • If they look at the system before pricing
  • What hours they’ll be on site

Choosing a duct cleaning contractor

The process

Protection comes first: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. It takes an hour or two to diagnose, then longer if parts or a new fan are needed, and the area is cleaned down before we leave. Loading bays, visitor permits and roof access are the first things we ask about for a site in Childs Hill.

  1. A visit is booked, in the evening or overnight if that suits.
  2. We isolate the extract and open the fan housing.
  3. We inspect every moving part and the fixings.
  4. You hear whether repair or replacement makes sense, with a fixed quote.
  5. The fan is repaired or replaced, then checked running.

Getting ready for the visit

  • Make sure equipment near the work can be switched off and left to cool
  • Arrange a key holder or contact on site
  • Clear the space around the work

How to get a quote

We don’t publish a price list, because every site is different. Instead, we look at your site first, from photos or a survey, and then send you a fixed quote. To get going, call 0345 646 2711 or drop us a line.

Ask for a quote

Advice

When something else is needed

Not every problem is solved by extract fan repair, and we’d rather say so up front. It doesn’t solve:

  • Grease throughout the ductwork, which needs a full TR19 clean
  • Wiring and supply faults beyond the fan itself
  • A system that needs redesigning rather than repairing

Not sure which it is? You can phone us on 0345 646 2711, or email photos and we’ll tell you honestly.

Parts of the system we cover

  • Kitchen extract fans
  • Roof and wall fans
  • Fan motors
  • Bearings
  • Belts and pulleys
  • Fan housings

For landlords and multi-site operators

Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we’re happy to quote for all of it.

Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party, and the report can go to both.

What your team can do, and what needs us

Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.

For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. Cleaning inside ducts and units is specialist work.

Looking after it afterwards

No system stays clean for ever, but care slows the build-up. Our tips:

  • Report new noises from the fan early
  • Keep all filters fitted while cooking
  • Keep the grease filters clean and fitted
  • Make sure the fan is cleaned with the rest of the system

Once the fan is running smoothly, keep the filters clean. Less grease on the impeller means less wear and fewer faults.

Clogged filters make the fan strain. Keeping filters clean eases the strain and helps prevent overheating.

Part by part

Roof and wall-mounted fans

An external fan’s rattle can be heard outside. It’s often down to loose mounts or worn bearings.

Fan controls

We check the controls as part of every diagnosis, because a fan that won’t start is not always a failed motor.

Questions from Childs Hill

Who carries out food hygiene inspections in Childs Hill?

Kitchens in Childs Hill are inspected by Barnet 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.

Do you work at weekends in Childs Hill?

Yes, we can come after you close and finish before you open. Your customers, staff or residents in Childs Hill needn’t be disturbed. Your opening times are the first thing we ask for.

How far ahead should we book?

The more notice, the better, especially for out-of-hours work. Quotes normally come back within one working day, and emergencies are covered by our 24/7 line.

How long does an extract fan repair take?

A typical repair takes an hour or two to diagnose, then longer if parts or a new fan are needed including running the fan afterwards. We’ll fit it around the kitchen’s hours where possible.

Is it worth cleaning the extract while you’re fixing the fan?

Often it makes sense to do both. A full clean takes in the whole extract, including the fan, with a certificate and photo report.

What if parts of the system can’t be reached?

They’re marked on the report. In ductwork, new access panels are often the answer, which we can install.

Do you recommend a next date?

Yes. We put a recommended next date on the report. For kitchen extracts, BESA’s minimum intervals run from every 3 months for heavy use to every 12 months for light use, and fire dampers need testing at least once a year.

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 on one programme. Each site gets its own report and photos.

What extract fan repair looks like in Childs Hill

Look up Childs Hill on the FSA’s food hygiene register and you will find about 303 cafés, restaurants and staff canteens and about 100 sandwich bars and takeaways in and around Childs Hill, up to about a mile and a half out. For any of them with a canopy, the extract fan is what keeps the kitchen usable. Lifting a replacement fan onto a London roof can need a loading slot and the building’s agreement. Food hygiene inspections in Childs Hill are the job of Barnet council’s environmental health team. Food premises are expected to have suitable and sufficient ventilation under food hygiene rules. So a failed fan is worth fixing before the next service, not the next month.

If you run a school kitchen, at a school such as All Saints' CofE Primary School NW2 or nearby, a fan that’s getting noisy is best repaired in the holidays before it fails in term. For kitchens close to Cricklewood station, a fan that stops mid-service needs fixing fast, and our emergency line runs 24/7.

Childs Hill is about 1 mile north-west of West Hampstead, in Greater London. Childs Hill gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where needed and a written report with photos. 764 places in Greater London are on our list, from busy centres to quieter spots. We also work in London, around 6 miles away.

Postcode districts we cover here for extract fan repair: NW2, NW3 and NW11. Extract fan repair is available to premises on Nant Road, Ridge Road and Garth Road and nearby roads. Close by, we work in Fortune Green (1 mile south), West Hampstead (1 mile south-east), Golders Green (1 mile north), North End (1 mile north-east) and Vale of Health (1 mile east). Within a short drive, we also cover London (6 miles south-east), City of Westminster (4 miles south-east), Marylebone (4 miles south-east), Kensington (4 miles south), St Pancras (4 miles south-east) and Shoreditch (6 miles south-east).

Around Childs Hill

We work in commercial kitchens and buildings around St Vedasts School For Boys, Hampstead School and The Old Bull and Bush pub, among other places. For rail, the closest station is Cricklewood station, roughly 0.7 miles south-west. Well-known places in the area include O2 Centre (1.2 miles south-east) and New End Hospital (0.9 miles east). Not far away are Parliament Hill and Westbere Copse.

Map of Childs Hill © OpenStreetMap contributors
BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London