Greater London · Extract fan repair and replacement
Extract fan repair and replacement in Crook Log, Greater London
Need extract fan repair in Crook Log? We survey first, send you a fixed quote and work around your opening hours, finishing with a written report and pictures.
- A knocking noise from the extract fan
- A belt-driven fan that squeals
- An extract fan that has stopped working
When it’s something else
A few issues sit outside what this work can do:
- Faults in the building’s electrical supply, which need an electrician
- Odour complaints that need filtration rather than a fan repair
- Gas interlock faults that a Gas Safe registered engineer must deal with
If in doubt, give us a ring on 0345 646 2711, or email photos and we’ll say what we think.
What we work on in Crook Log
- Bearings
- Fan housings
- Kitchen extract fans
- Fan motors
- Roof and wall fans
- Belts and pulleys
Extract fan repair for kitchens and businesses in Crook Log
Every fan job begins with finding the fault. 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’ve found before any work goes ahead. The work covers belts and pulleys, bearings and roof and wall fans, and people most often call us about a humming noise from the fan motor and a fan that keeps cutting out.
Replacing a fan in a London building often means working at height or in a tight plant space, and in Crook Log, parking and lifting are part of that. Repairs can be done out of hours so the kitchen keeps trading.
Good records are part of the job. Each visit is written up with pictures, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Where
- Crook Log (DA7, DA6, DA16)
- Region
- Greater London
- Records
- Written report with photos
- Quotes
- A fixed price before any work starts
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Updated
- 30 October 2026

Why act early in Crook Log
A fan that’s running slowly is not clearing the kitchen properly. The kitchen becomes an uncomfortable place to work and grease has more chance to settle on surfaces and in the duct. In Crook Log, a planned overnight visit is much easier than closing unexpectedly.
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Why choose Duct Doctor in Crook Log
- A fixed price before any work starts
- Out-of-hours work and a 24/7 emergency line
- Survey first, then a fixed quote
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Take a look at what affects the cost or our accreditations and certificates.
What staff can safely do
Staff cleaning and specialist work aren’t the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
Different parts, different methods
Belt-driven fans
Squealing at start-up often points to a belt. We check the belt condition, tension and alignment and renew them where necessary.
Impellers and housings
A damaged or corroded impeller cannot simply be cleaned. It may be replaced on its own, or with the whole fan.
Fixed quotes for extract fan repair in Crook Log
The survey tells us what the work involves. We look at:
- How easy every part is to reach
- Site requirements such as sign-in and permits
- What state the system is in
- Where the site is and how we reach it
Putting the work off seldom saves money. Problems in a system tend to grow, which can make the next visit longer. If you are unsure, call us on 0345 646 2711 or use the quote form and we will give you an honest view and a fixed quote.
Asking for a quote
You do not need the technical terms. It helps if you can send:
- Close-ups of filters, grilles, hatches or access panels
- Your opening hours and when the area is out of use
- Any previous report or certificate
- Any symptoms, from odd noises to smells or leaks
Quotes are quick. Send a few details and pictures, and we typically reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Extract fans in Crook Log
There are about 154 restaurants, cafés and canteens and about 86 sandwich bars and takeaways within about 1.5 miles of central Crook Log, according to the Food Standards Agency’s register. 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 Crook Log are the job of Bexley council’s environmental health team. Food hygiene rules expect food premises to have suitable and sufficient ventilation. A kitchen without a working fan has a problem to fix quickly.
If you run a kitchen close to Bexleyheath station and the extract fan is getting noisy, a planned repair after closing beats a breakdown at the rush. A fan that rarely runs, like one in a hall kitchen near Trinity Baptist Church or elsewhere in Crook Log, can seize between uses. School kitchens can’t easily serve lunch without extraction, so if you look after one at a school like Crook Log Primary School, fix a failing fan before term starts.
Crook Log is about 3 miles south-east of Plumstead, in Greater London. Sites in Crook Log get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with photos. Crook Log is one of 764 towns, villages and districts in Greater London we cover for extract fan repair. London is in our area too, about 10 miles from Crook Log.
All of DA7, DA6 and DA16 is within our area for extract fan repair, from busy streets to back roads. That includes premises on Bean Road, Lion Road and Alers Road and the roads around them. If your site is just outside Crook Log, we cover Upton (1 mile east), Bexleyheath (1 mile east), Welling (1 mile west), Blendon (1 mile south) and Bexley (1 mile south). Further out, we also cover London (10 miles west), City of Westminster (13 miles west), Marylebone (12 miles west), Kensington (14 miles west), St Pancras (11 miles north-west) and Shoreditch (10 miles north-west).
Landmarks near Crook Log
In Crook Log, that means kitchens and buildings near Danson Park, St Columba's Catholic Boys' School and The Crook Log Public House and the streets around them. There’s a railway station in Crook Log itself: Bexleyheath station. Nearby you’ll also find Bexley Museum (1.7 miles south-east) and Broadway Shopping Centre (0.9 miles east). The countryside around Crook Log includes Summer Hill and Wansunt Pit.
What happens on the day
We turn up at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool before any work starts, and floors and nearby surfaces are sheeted. The work itself takes a few hours on site, depending on the fault and the access to the fan. Security desks and permits-to-work are routine in London, so let us know what your building in Crook Log needs from us.
- We start with the symptoms, such as rattling, humming, slow running or a fan that won’t start.
- 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.
- Once the work is done, we run the fan and check it’s steady and quiet.
Before we arrive
- Clear loose items from the work area
- Let us know how we reach the system, including roofs, risers and plant rooms
- Agree a time when the area can be out of use
Ask for a quote
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and many jobs can be priced from that alone.
Advice
Questions from Crook Log
Which council inspects kitchens in Crook Log?
The local authority for Crook Log is Bexley council, and its environmental health team does the inspecting. An officer may ask how the kitchen is ventilated, so keep repair records with your maintenance file.
Can the work in Crook Log be done at night or at weekends?
Yes, nights and weekends are routine for us. The work in Crook Log can fit around your hours. Let us know the hours you are closed and we’ll book within them.
What types of premises do you cover?
All kinds of commercial and public premises: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. We fit the work around how the site operates.
Do you replace extract fans as well as repair them?
We can. Replacing a fan is part of our fits and repairs work and we’ll talk you through what’s involved.
What will a fan repair or replacement cost?
The cost depends on what’s wrong and how easy the fan is to reach. We diagnose first and give you a fixed price before any work starts.
How far ahead should we book?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and if it’s an emergency, call us any time.
Can you set up regular visits?
Yes. We run scheduled maintenance contracts, set at the interval the system needs. The report from each visit recommends the next date.
Who is the responsible person?
The Fire Safety Order 2005 calls them the responsible person: normally the employer or whoever controls the premises. Landlords, facilities managers and managing agents can also hold responsibility.
Managing agents and facilities teams in Crook Log
Multi-site operators often want one contractor and one number. We work across London and the South East, so visits at different addresses can be planned together and kept on a regular cycle.
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.