Greater London · Extract fan repair and replacement
Extract fan repair and replacement in Mapesbury, Greater London
Repair and replacement of kitchen extract fans, fan motors and worn fan parts in Mapesbury, surveyed first and signed off with a written report and pictures. Ask us for a fixed quote.
- A worn or slipping fan belt
- A fan that keeps cutting out
- Vibration spreading from the fan into the ducts
How we price extract fan repair
We don’t publish a price list, because sites vary so much. The quote depends on:
- What state the system is in
- Site requirements such as sign-in and permits
- When the work can happen, such as evenings, overnight or weekends
- The number of sites or systems
What you pay reflects the actual work. That’s why every job is surveyed first, and why the quote is fixed before any work starts.
Helping us quote
Before you ask for a quote, gather:
- When the site is open and when it’s quiet
- The site address and the type of premises
- Wide photos of the system and the area around it
- Close-ups of filters, grilles, hatches or access panels
To get a fixed quote, call 0345 646 2711 or use the quote form and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. You’ll typically have a quote within one working day.
About our extract fan repair in Mapesbury
Think of it as a check-up for the fan: we hear the symptoms, find the cause and put it right. The aim is steady, quiet extraction and a clear explanation of what was done. If you have a fan that keeps cutting out and poor airflow at the canopy, we can help.
In London, getting a new fan to the roof or plant room can take planning, with parking and lifting to arrange in Mapesbury. Repairs can be done out of hours so the kitchen keeps trading.
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.
- Where
- Mapesbury (HA9, HA0, NW10)
- Wider area
- Greater London
- Records
- Report and photos after the visit
- Price
- A fixed quote up front
- Hours
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
Also near Mapesbury
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What staff can safely do
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
Your questions about extract fan repair in Mapesbury
Does London parking affect a job in Mapesbury?
We plan it in advance, so let us know about loading bays, permits and access rules at the building. Working overnight, as we often do in London, normally makes it simpler.
Can you come out to a failed extract fan in Mapesbury out of hours?
Mapesbury is covered, and our emergency callout runs 24/7. Call 0345 646 2711 and tell us what the fan is doing, or not doing. If you can, stop cooking until the fan is checked.
Which sectors do you work in?
Commercial premises of every kind: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.
How much does an extract fan repair cost?
We price each job after finding the cause. Repair, parts or a full replacement all cost differently, so call 0345 646 2711, or send details by email and we will arrange a diagnosis.
What about areas you cannot get to?
They’re listed in the report, never skipped quietly. You’ll know exactly which parts weren’t reached and why, and we can quote to improve the access.
Does a fan repair include cleaning the ductwork?
A fan repair on its own doesn’t include the ductwork. We’ll tell you what we see, so you can decide whether to book a TR19 clean.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Can we book visits on a schedule?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.
Keeping the system healthy
Aftercare is simple, and it helps at the next visit:
- Book regular TR19 cleaning, which includes the fan
- Keep a record of any trips or stoppages
- Make sure staff know who to call if the fan fails
- Clean or change filters on schedule
Where parts need ordering, we explain what that means for the kitchen until we return. The fan is completed on a return visit outside your busiest hours.
Noise is typically the first sign of a fan problem. Getting it checked now means a planned repair rather than an emergency during service.
Different parts, different methods
Impellers and housings
Grease settles inside the fan housing as well as on the blades. We check both, and cleaning can form part of the repair.
Belt-driven fans
In a belt-driven fan, the motor drives the impeller by belt. Worn belts squeal and slow the fan down, so we check the pulleys and bearings as well.
What we do, step by step
When we arrive, we check the system against the survey or the photos you sent. Anything unexpected is raised with you before we go further. After that, the work takes part of a day for most faults, with a return visit if parts have to be ordered. Many London buildings have a managing agent, a security desk or a permit-to-work system, so tell us who to contact in Mapesbury.
- 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.
- 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.
Before we arrive
- Arrange a key holder or contact on site
- Plan for cooking equipment or plant to be off before we arrive
- Tell us about site rules, permits or sign-in
How to get a quote
Getting a quote doesn’t take long. Send a few details and pictures, and we usually reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Related advice
What happens if it’s left?
In kitchens with an interlocked gas supply, no extract can mean no cooking. Without extraction, the heat and fumes build up fast, so a failing fan is worth dealing with early. Shared walls, risers and roofs mean a problem at one London site seldom stays put.
Working hours, access and the scale of the site can all change the price. We take each of them into account and give you a fixed price before any work starts.
Why choose Duct Doctor in Mapesbury
- In business since 2009
- Work around your opening hours, with 24/7 emergency cover
- Photo reports with every job
- Accredited under CHAS and SafeContractor, with ISO 9001
See our cost guide and our accreditations.
Common problems we fix in Mapesbury
Grease that gets past the filters ends up on the fan. Deposits gather on the blades, never quite evenly, so the fan runs out of balance and the noise follows.
Any of these means the system needs a check-up:
- An extract that vibrates through the ductwork
- A dead fan motor
- A humming noise from the fan motor
- An extract fan that rattles or knocks
Hall kitchens near St Michael the Archangel, or anywhere around Mapesbury, often use their fans only now and then, and an idle fan can stick.
Questions to ask before you book
- What happens if part of the system can’t be accessed
- Which accreditations they hold, and whether you can check them
- If they look at the system before pricing
- If the quote is a fixed price or an estimate
What extract fan repair looks like in Mapesbury
Food Standards Agency data counts about 204 restaurants, cafés and works canteens and about 234 sandwich bars and takeaways within 1.5 miles or so of the middle of Mapesbury. Those that cook under a canopy rely on a fan that runs every hour they’re open. In Mapesbury, food businesses are inspected by environmental health officers from Brent council. 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. A failed fan in a London kitchen usually means a closed kitchen, so access details help us plan the repair.
If you cook near Wembley Stadium station, long trading hours wear fan belts and bearings, so noise and vibration are worth reporting early. School kitchens can’t easily serve lunch without extraction, so if you look after one at a school like St Joseph's RC Infant School, fix a failing fan before term starts.
Mapesbury is about 1 mile south-east of Wembley, in Greater London. Every kind of commercial site in Mapesbury, we can take on extract fan repair. Visits can be booked for evenings, overnight or weekends so trading is not interrupted. Across Greater London, we cover 764 places, Mapesbury among them. There’s also a page for London, roughly 9 miles from Mapesbury.
Here we cover the HA9, HA0 and NW10 postcode area for extract fan repair. If you need extract fan repair at premises on London Road, Harrow Road and Cecil Avenue or a nearby road, our technicians can take on the work. If your site is just outside Mapesbury, we cover Tokyngton (1 mile south-east), Stonebridge Park (1 mile south-east), Wembley Park (1 mile north), Wembley (1 mile north-west) and Brent Park (1 mile east). We also work in nearby towns such as London (9 miles south-east), City of Westminster (6 miles south-east), Marylebone (6 miles east), Kensington (5 miles south-east), St Pancras (7 miles east) and Shoreditch (9 miles east).
Around Mapesbury
In Mapesbury, that means kitchens and buildings near The Swaminarayan School, Hilton London Wembley pub and St. Raphael's Edible Garden, among other places. Mapesbury has its own railway station: Wembley Stadium station. Nearby you’ll also find Brent Museum and Archives (2.2 miles east) and Neasden Hospital (0.9 miles east). The countryside around Mapesbury includes Fox Wood and Middle Lake.