Greater London · Extract fan repair and replacement
Extract fan repair and replacement in Downham, Greater London
One call covers repair and replacement of kitchen extract fans, fan motors and worn fan parts in Downham: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- A knocking noise from the extract fan
- An extract that vibrates through the ductwork
- A fan worn beyond sensible repair
Extract fan repair in Downham, done properly
Everything a kitchen extract does depends on the fan. Once it turns noisy, sluggish or stops altogether, the kitchen gets hot and smoky very quickly. Our engineers track down the fault and fix it, by repairing the fan or replacing it. If you’re dealing with a whining or grinding extract motor and a worn or slipping fan belt, we can help.
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 Downham. Work can be done after service, so the kitchen loses as little time as possible.
Think of the report as the system’s health record: dated, with pictures, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Where
- Downham (BR1, SE6, SE12)
- Region
- Greater London
- Paperwork
- Report and photos after the visit
- Price
- Fixed quote, usually within a working day
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Keeping the system healthy
To keep the system working properly between visits:
- Never run the extract with filters missing
- Keep the grease filters clean and fitted
- Report new noises from the fan early
- Keep a record of any trips or stoppages
Where parts need ordering, we explain what that means for the kitchen until we return. We then come back and fit them at a time that suits your service.
A slipping belt or a loose mount is a small job. Ignored, they can lead to bigger failures so early attention pays.
Places near Downham
Also in Downham
Why act early in Downham
Left alone, vibration spreads its damage. Fixings work loose and joints in the ductwork can be strained, so a small repair can grow into a bigger one. London buildings are shared, so a fire or failure in one system can reach the neighbours above and beside you.
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 work begins.
Why choose Duct Doctor in Downham
- Every visit written up, with pictures
- A fixed price before any work starts
- Survey first, then a fixed quote
- Trading since 2009
Extract fans in Downham
Food Standards Agency records list about 152 restaurants, cafés and canteens and about 80 takeaways in and around Downham, up to about a mile and a half out. Every one of them that cooks under a canopy depends on its extract fan to keep cooking. London extract fans are often at the end of long duct runs, on roofs or in basements. In Downham, food businesses are inspected by environmental health officers from Lewisham council. A kitchen with no working extract can fall short of the suitable and sufficient ventilation food hygiene rules expect. So a failed fan is worth fixing before the next service, not the next month.
A fan that rarely runs, like one in a hall kitchen near St Barnabas or elsewhere in Downham, can seize between uses. If you run a kitchen close to Grove Park station and the extract fan is getting noisy, a planned repair after closing beats a breakdown at the rush.
Downham is about 2 miles north of Bromley, in Greater London. For extract fan repair in and around Downham, it’s easy to get a fixed quote: please ring 0345 646 2711, or send details by email. Our area covers London and the South East, including Downham. Downham is one of 764 places in Greater London we cover for extract fan repair. We also work in London, about 7 miles from Downham.
Work in BR1, SE6 and SE12 follows the same survey, fixed quote and written report as everywhere else we cover. Whether your site is on Shaw Road, Arcus Road and Brook Lane or a nearby road, our technicians can take on the work. Nearby, we also carry out extract fan repair in Plaistow (1 mile south), Grove Park (1 mile north-east), Sundridge (1 mile south-east), Chinbrook (1 mile east) and Bellingham (1 mile west). We also work in nearby towns such as London (7 miles north-west), City of Westminster (9 miles north-west), Marylebone (9 miles north-west), Kensington (10 miles north-west), St Pancras (9 miles north-west) and Shoreditch (8 miles north-west).
Near you in Downham
In Downham, that means kitchens and buildings near Holy Trinity College Bromley, Downham Fields and Bonus Pastor Catholic College and the streets around them. The nearest railway station is Grove Park station, about 0.8 miles north-east. Well-known places in the area include The Glades (1.6 miles south) and Greenwich Castle (3.6 miles north). Not far away are Summer Hill and Downham Woodland Walk.
How it works
Your trading hours come first. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes an hour or two to diagnose, then longer if parts or a new fan are needed. Expect the work in Downham to happen after your last customer leaves, not during trading.
- A visit is booked, in the evening or overnight if that suits.
- We isolate the extract and open the fan housing.
- Bearings, drive, impeller, motor and mounts are inspected.
- You hear whether repair or replacement makes sense, with a fixed quote.
- The fan is repaired or replaced, then checked running.
How to prepare
- Name a contact who can let us in at the agreed time
- Move anything stored near the system
- Agree a time when the area can be out of use
How to get a quote
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before we start.
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Common problems we fix in Downham
Fixings and anti-vibration mounts work loose or perish over time. Then every vibration is passed into the duct and the building, which is where knocking and rattling often come from.
Keep an eye out for any of the following:
- A squealing belt on start-up
- An extract fan that has stopped working
- A fan that whines, hums or grinds
- A fan rattling in its housing
For school kitchens, at schools like Rangefield Primary School for example, a planned fan repair in the holidays avoids losing lunches in term time.
What to look for in a quote
- Whether inaccessible sections are listed on the report
- If they look at the system before pricing
- What’s included in the scope, part by part
- Whether they recommend a next date
Honest limits
Before you book, it helps to know what’s not included:
- Smells from the discharge that need odour control equipment
- Grease throughout the ductwork, which needs a full TR19 clean
- Problems with the electrical supply to the fan (an electrician’s job)
Not sure which it is? You can give us a ring on 0345 646 2711 or use the quote form and we’ll tell you honestly before booking.
Where we work
- Fan motors
- Bearings
- Roof and wall fans
- Belts and pulleys
- Fan housings
- Kitchen extract fans
Staff cleaning versus specialist work
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
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.
How we price extract fan repair
Sites vary more than people expect. The main factors:
- Where the site is and how we reach it
- One-off work versus a regular cycle
- How easy every part is to reach
- Site rules, permits and inductions
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are not sure what’s needed, phone us on 0345 646 2711, or email photos for straight advice and a fixed quote.
Asking for a quote
There’s no need for technical detail. Just send:
- Your opening hours and when the area is out of use
- Close-ups of filters, grilles, hatches or access panels
- The postcode and the type of business
- Any previous report or certificate
Here’s what helps us quote: the address, the type of site and when it’s open, photos of the system and any previous report or certificate. Once you have those, phone us on 0345 646 2711 or drop us a line.
Downham questions
Who do I call if an extract fan fails in Downham?
Our emergency line runs 24/7, and Downham is within the area we cover. Call 0345 646 2711 and tell us what the fan is doing, or not doing. Tell us where the fan is and how to reach it.
Who carries out food hygiene inspections in Downham?
In Downham, it’s Lewisham council that carries out food hygiene inspections. Keeping the fan serviced is easier than explaining a broken one on inspection day.
Are you accredited?
Duct Doctor is 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.
Can you supply and fit a replacement fan?
Yes. If repair isn’t sensible, we replace the fan. The replacement has to suit the ductwork and the cooking before recommending a unit.
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.
What happens to the waste?
Waste is contained during the work and removed when we leave, from grease and debris to used cleaning water. None of it is left on site.
Does the report say when we need you again?
Yes. We put a recommended next date on the report. BESA’s minimum intervals for kitchen extracts range from 3-monthly for heavy use to 12-monthly for light use, while fire dampers are tested at least annually.
Do we lose a day’s trading?
Not usually. Visits are timed for when the area is closed, such as overnight or at a weekend, so you keep your normal hours.