Greater London · Canopy and hood cleaning
Canopy Cleaning in Friern Barnet
Our technicians work in Friern Barnet on canopy cleaning. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- Canopy gutters full of old fat
- Drips from the canopy onto the range
- A plenum thick with grease behind the filters
What happens on the day
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 work takes a few hours for most canopies. Security desks and permits-to-work are routine in London, so let us know what your building in Friern Barnet needs from us.
- We look at the canopy, filters and troughs first.
- Out of hours, the range is switched off, cooled and covered.
- We lift out the filters and scrape the plenum and housing.
- Inside and out, the hood and its troughs are cleaned.
- Filters are refitted, the area cleaned down and the photo report put together.
Preparing for the visit
- Let us know about permits to work or site inductions
- Make sure someone can let us in and lock up afterwards
- Dig out any earlier paperwork for the system
Get a fixed quote
The quickest way to a quote is to send pictures: 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 we can price many jobs without a visit.
Related advice
How we handle canopy cleaning in Friern Barnet
Canopy cleaning is part of every full TR19® Grease clean, but some sites need the canopy done between full cleans. In that case, the report makes clear what was and wasn’t cleaned, so your records stay accurate. The work covers island canopies, grease gutters and plenum chambers, and people most often call us about filters that clog soon after cleaning and drips from the canopy onto the range.
Across London, many commercial kitchens are squeezed into basements and narrow back-of-house spaces, with extract ducts that can climb several floors to discharge at roof level. For a kitchen in Friern Barnet, that usually means a longer system to clean and more access panels to plan around.
The paperwork matters as much as the work. Each visit is written up with pictures, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.

- Location
- Friern Barnet (N11, N12, N10, N20)
- Wider area
- Greater London
- Records
- TR19® certificate and photo report
- Quotes
- A fixed price before we start
- When we work
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
What canopy cleaning can’t fix
Some problems need a different service or another trade:
- A hood that does not cover the cooking line
- Bent or broken filters
- Faulty canopy lights or wiring (a job for an electrician)
Not sure which it is? You can give us a ring on 0345 646 2711 or email us and we will tell you honestly before booking.
Where we work
- Baffle filters
- Wall canopies
- Island canopies
- Plenum chambers
- Grease gutters
- Canopy light fittings
Why act early in Friern Barnet
A canopy clean in Friern Barnet now stops the grease spreading further. It takes a few hours for most canopies, done while the kitchen is closed. Left alone, grease keeps moving into the plenum and duct. Leaving it on a busy London site only adds to the work.
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.
Why choose Duct Doctor in Friern Barnet
- Fixed quotes, normally within one working day
- Photo reports with every job
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Trading since 2009
See how cleaning jobs are priced or our accreditations and certificates.
Your questions about canopy cleaning in Friern Barnet
Do you work overnight in Friern Barnet?
Yes, we can come after you close and finish before you open. That way a site in Friern Barnet does not have to lose a day’s trading. When you call 0345 646 2711, or send details by email, mention when the site is quiet.
Does London parking affect a job in Friern Barnet?
Tell us where a van can stop near your site in Friern Barnet, and about any building rules on loading. Much of our London work is done overnight, which helps.
Do you work with multi-site operators?
Yes. Our area covers London and the South East, so sites at different addresses can be planned together on one programme. Each site gets its own report and pictures.
How much notice should we give?
Earlier is better, especially for out-of-hours work. We normally quote within one working day, and emergencies are covered by our 24/7 line.
What kinds of canopies do you clean?
We clean canopies in commercial kitchens of every kind. Whatever is cooked under it, the canopy is cleaned the same thorough way, with the equipment off and cool.
Is there a survey before the work?
Yes. For many sites, pictures and a few details are enough, and larger or hidden systems get a visit.
How much of the canopy do you clean?
We clean the canopy inside and out, including the seams, troughs and gutters. With the filters out, the plenum and housing are cleaned as well.
How much does canopy cleaning cost in Friern Barnet?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. We fix the price before we start.
Canopy cleaning in Friern Barnet: the local picture
Food Standards Agency data counts about 169 restaurants, cafés and canteens and about 74 sandwich bars and takeaways within about 1.5 miles of central Friern Barnet. Wherever there’s a canopy over the cooking, its hood and plenum collect grease with every service. Kitchens in Friern Barnet get their food hygiene inspections from Barnet council. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Keeping each certificate and photo report on file helps show the extract is looked after. Most London extract cleaning happens at night, after the last service.
If you cook for passing trade around New Southgate station, the extract can be cleaned between your last and first customer. Volunteers running a hall kitchen near St John's Church, or anywhere in Friern Barnet, may not know when the extract was last cleaned, and a grease test settles it. School kitchens, at schools like Holly Park Primary School for example, are usually cleaned in the holidays so no lunches are lost.
Friern Barnet is about 2 miles north-east of Finchley, in Greater London. If you need canopy cleaning in Friern Barnet, it’s easy to get a fixed quote: please ring 0345 646 2711 or send us an email. Our area covers London and the South East, Friern Barnet included. Friern Barnet is one of 764 towns, villages and districts in Greater London we cover for canopy cleaning. There’s also a page for London, about 8 miles away.
Every address in N11, N12, N10 and N20 is covered for canopy cleaning, from the main roads to the quietest streets. Streets in the area include Martock Gardens, Shapwick Close and Radstock Close, all of which we cover for canopy cleaning. With the A406 and B550 close by, Friern Barnet is easy for our technicians to reach at any hour. If your site is just outside Friern Barnet, we cover New Southgate (1 mile east), Brunswick Park (1 mile north), North Finchley (1 mile west), Arnos Grove (1 mile east) and Whetstone (1 mile north-west). Further out, we also cover London (8 miles south), City of Westminster (7 miles south), Marylebone (7 miles south), Kensington (8 miles south), St Pancras (6 miles south) and Shoreditch (7 miles south-east).
Local landmarks in Friern Barnet
In Friern Barnet, that means kitchens and buildings near Francis Skaryna Belarusian Library and Museum, Friary Park and Friern Barnet School and the streets around them. There’s a railway station in Friern Barnet itself: New Southgate station. Other landmarks nearby include Francis Skaryna Belarusian Library and Museum (1.4 miles west) and Grand Arcade (1 mile west). The countryside around Friern Barnet includes Highgate Hill and Darland's Lake.
What affects the quote in Friern Barnet
Before we fix a price, we need to know a few things. We check:
- Whether we need access equipment or extra panels
- Site rules, permits and inductions
- How big the system is
- Travel, parking and unloading
Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
What we need to know
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- Your last certificate, test record or report
- The roof, plant room or outside wall the system runs to
- Detail shots of panels, filters and grilles
- The times we could work without disrupting the site
Need a price for canopy cleaning? Please call 0345 646 2711 or send us an email with a few details about the site. We will talk you through the work and send you a fixed quote before you commit to anything.
Towns and villages near Friern Barnet
More services for Friern Barnet
For landlords and multi-site operators
We regularly work with managing agents. Tell us the site, the work and the access arrangements and we’ll come back with a fixed quote.
Keeping records across a portfolio is half the battle. Each visit produces a dated report with pictures, ready to show insurers, fire officers or EHOs.
Keeping the system healthy
Simple habits between visits make a real difference. Our advice:
- Flag any change in how the canopy behaves
- Wash or exchange the filters on a regular cycle
- Avoid harsh scourers that scratch the canopy
- Keep every filter in place while cooking
After the clean you get a photo report showing the canopy, plenum and housing before and after. It notes what was cleaned and anything we couldn’t reach, so the record is honest and complete.
Empty the grease troughs and cups before they fill. Overflowing troughs are the usual cause of drips onto the range, so make emptying them part of the closing routine.
Staff cleaning versus specialist work
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. Cleaning inside ducts and units is specialist work.
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.