Greater London · Extract fan repair and replacement
Extractor fan repair in Fortis Green
Our technicians work in Fortis Green on repair and replacement of kitchen extract fans, fan motors and worn fan parts. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- An extract fan that rattles or knocks
- A fan shaking on its mountings
- An old fan that needs replacing
What happens on the day
The visit has three parts: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, while signing off means the written report and photos. The middle part takes longest, which takes part of a day for most faults, with a return visit if parts have to be ordered. Night and weekend working is normal for us in London, and a site in Fortis Green is no exception.
- We take details of the symptoms and book a time that suits the kitchen.
- On site, the fan is safely isolated.
- We diagnose the fault, checking the controls as well as the fan.
- You get a fixed price for putting it right.
- We fix the fault and run the fan to check it.
Getting ready for the visit
- Tell us the best time to work, such as after service or at a weekend
- Find the previous report, if there is one
- Make sure equipment near the work can be switched off and left to cool
Ask for a quote
The quickest way to a quote is to send photos: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and we can price many jobs without a visit.
Advice
Extract fan repair for kitchens and businesses in Fortis Green
Grease and fans don’t mix. Deposits on the impeller throw it out of balance and the vibration wears out bearings and fixings. So when we repair extract fan, we look at the grease too and can arrange a TR19® clean of the whole system at the same time. Typical jobs include a belt-driven fan that squeals and poor airflow at the canopy, on fan housings, roof and wall fans and bearings.
Replacing a fan in a London building often means working at height or in a tight plant space, and in Fortis Green, parking and lifting are part of that. Repairs can be done out of hours so the kitchen keeps trading.
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.

- Where
- Fortis Green (N10, N2, N6)
- Region
- Greater London
- Paperwork
- Report and pictures after the visit
- Price
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
FAQs for Fortis Green
Can you come out to a failed extract fan in Fortis Green out of hours?
Extract fan emergencies in Fortis Green are covered around the clock. Use 0345 646 2711, our emergency number, at any time. Details of the make and model help us plan the repair.
Who would carry out a food hygiene inspection at a kitchen in Fortis Green?
That is Haringey council, whose environmental health officers carry out food hygiene inspections in Fortis Green. An officer may ask how the kitchen is ventilated, so keep repair records with your maintenance file.
Are you fully insured?
Yes. We’re fully insured, and the details are available on request.
Which accreditations do you hold?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We have been trading since 2009 and we’re fully insured.
What about areas you can’t get to?
They’re marked on the report. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
Can you set up regular visits?
Yes. Send details of the systems and how they’re used and we will propose a schedule with a fixed quote.
Which kinds of sites do you work on?
Any commercial site with kitchens or ventilation, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
What do you do to protect the area?
Protection goes down first: sheeting over floors, worktops and anything close to the work. The area is left tidy, with our waste taken away.
How we price extract fan repair
Every site gets its own quote. These are the things that affect it:
- One-off work versus a regular cycle
- Parking and loading at the site
- Whether we need access equipment or extra panels
- The size of the system
Several systems or sites on one quote often makes better use of the time. Tell us about everything you’d like looked at and we’ll price it together.
Helping us quote
When you contact us, it’s useful to have:
- The postcode and the type of business
- Any symptoms, from odd noises to smells or leaks
- Close-ups of filters, grilles, hatches or access panels
- Photos showing the whole system and its surroundings
Here’s what helps us quote: where the site is, what it is and its opening hours, pictures of the system and the last certificate or report, if there is one. Then give us a ring on 0345 646 2711 or drop us a line.
Managing agents and facilities teams in Fortis Green
If you look after several sites, we can plan visits across the whole estate and price them together. Every building has its own written report, so records stay tidy.
Whether it’s one building or many, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with photos.
Staff cleaning versus specialist work
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
In-house cleaning and specialist cleaning do different jobs. 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. That part needs specialist access and equipment.
What happens if it’s left?
Left alone, vibration spreads its damage. It loosens fixings, strains duct connections and wears the housing and the eventual repair is larger. In a London building, a problem in a duct, damper or fan rarely stays in one unit.
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. You will have a fixed price before work begins.
Why choose Duct Doctor in Fortis Green
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- One contact for all your sites in London and the South East
- Fixed quotes, usually within one working day
- Evenings, overnight and weekends, plus 24/7 emergency callout
See how cleaning jobs are priced or how to check a contractor.
Extract fan repair in Fortis Green: local notes
There are about 169 cafés, restaurants and staff canteens and about 60 takeaways within 1.5 miles or so of the middle of Fortis Green, according to the Food Standards Agency’s register. Those that cook under a canopy rely on a fan that runs every hour they’re open. Food hygiene inspections in Fortis Green are the job of Haringey council’s environmental health team. A kitchen with no working extract can fall short of the suitable and sufficient ventilation food hygiene rules expect. That makes a fan repair urgent rather than something to put off. Lifting a replacement fan onto a London roof can need a loading slot and the building’s agreement.
A fan that rarely runs, like one in a hall kitchen near United Reformed Church or elsewhere in Fortis Green, can seize between uses.
Fortis Green is about 1 mile south-east of Finchley, in Greater London. Whether your site is in the middle of Fortis Green or further out, we cover extract fan repair for every kind of premises, from a single unit to a large public building. Fortis Green is one of 764 towns, villages and districts in Greater London where we work for commercial clients. For sites nearby, see our London page, about 7 miles away.
Every address in N10, N2 and N6 is covered for extract fan repair, from the main roads to the quietest streets. Extract fan repair is available to premises on Hill Road, Durham Road and Steeds Road and nearby roads. Being close to the A504, Fortis Green is simple for us to get to for extract fan repair. We also cover the places around Fortis Green: Muswell Hill (1 mile east), East Finchley (1 mile west), Highgate (1 mile south), Crouch End (1 mile south-east) and Hampstead Garden Suburb (2 miles south-west). Further out, we also cover London (7 miles south), City of Westminster (5 miles south), Marylebone (5 miles south), Kensington (7 miles south), St Pancras (5 miles south) and Shoreditch (6 miles south-east).
What’s near Fortis Green
We work in commercial kitchens and buildings around Tollington School, Cherry Tree Wood and The Clissold Arms. The nearest railway station is Alexandra Palace station, roughly 1.4 miles east. A little further out are Kenwood House (1.6 miles south-west) and Grand Arcade (1.8 miles north-west). For a walk, there’s Highgate Hill and Glebelands Local Nature Reserve.
Part by part
Fan controls
Speed controllers and isolators sit between the supply and the fan. A control fault can leave the fan dead or stuck at one speed.
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.
What we’re called out for in Fortis Green
Some grease always slips past the filters and reaches the fan. It builds up on the impeller blades unevenly, so the fan runs out of balance and the noise follows.
Common reasons sites call us are:
- Weak extraction and a smoky kitchen
- A squealing belt on start-up
- An extract fan that rattles or knocks
- A humming noise from the fan motor
For school kitchens, at schools like Fortismere School for example, a planned fan repair in the holidays avoids losing lunches in term time.
What your quote should include
- What happens if part of the system cannot be accessed
- Whether a written report and photos are included
- Proof of insurance
- Whether a survey comes first