Greater London · Grease filter exchange
Grease Filter Exchange in High Barnet
Specialist grease filter exchange for High Barnet: a survey, a fixed price, careful work and proper paperwork. Call for a fixed quote.
- Filters so greasy the air can barely pass
- Filter washing that keeps being missed
- Filters that come out of the sink still dirty
Landlords, agents and facilities managers
We regularly work with managing agents. Tell us the site, the work and the access arrangements, and we will send a fixed quote.
From a single site to a large estate, you get the same standard: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.
How we handle grease filter exchange in High Barnet
Grease filters are the first line of defence in a kitchen extract. Their job is to stop grease getting further into the system and they do it best when they’re clean. Our grease filter exchange service swaps dirty filters for clean ones on a schedule. The work covers baffle filters, wall canopies and island canopies, and the jobs we see most are smoke and heat lingering under the hood and filters so greasy the air can barely pass.
Kitchens in High Barnet, like many across London, can share a building with flats or offices, with the duct running up through shared risers. Grease in a duct like that is a fire risk to the whole building, not just the kitchen, which is why keeping it clean to TR19® matters.
Good records are part of the job. You get a written report with pictures after each visit, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Place
- High Barnet (EN5)
- Wider area
- Greater London
- Paperwork
- Written report with pictures
- Quote
- A fixed quote up front
- Hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
How the visit works
The visit has three parts: set-up, the treatment itself and the sign-off. Getting ready means protecting surfaces and switching off what needs to be off, while signing off means the written report and pictures. The middle part takes longest, which takes well under an hour for most canopies. Night and weekend working is normal for us in London, and a site in High Barnet is no exception.
- We look at the canopies and the condition of the filters.
- We note any filters that are bent, damaged or missing.
- Greasy filters are swapped for clean ones.
- We check the filters are seated and the canopy is ready to use.
- Anything that needs attention, such as a greasy plenum, is pointed out.
Preparing for the visit
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Tell us about site rules, permits or sign-in
- Plan for cooking equipment or plant to be off before we arrive
Getting a quote
Need a price for grease filter exchange? Please phone us on 0345 646 2711 or email us with a few details about the site. We’ll talk you through the work and give you a fixed quote before anything is booked.
Related advice
Why act early in High Barnet
Grease dripping from the canopy is a sign the filters can’t hold any more. Drips land on surfaces and equipment below, which an EHO may well notice. In a London building, a problem in a duct, damper or fan rarely stays in one unit.
You won’t find a price list here, because the cost depends on the site in front of us. Call for a fixed quote, and we’ll talk you through it.
Why choose Duct Doctor in High Barnet
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Out-of-hours work and a 24/7 emergency line
- Each visit written up, with photos
- Ventilation hygiene specialists since 2009
Take a look at what affects the cost or how to check a contractor.
Staff cleaning versus specialist work
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that is where we come in.
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. Leave those to us.
What the work involves, part by part
Mesh filters
Mesh filters use layers of metal mesh to trap grease. They clog quickly in a busy kitchen and need frequent attention.
School, care home and staff kitchens
For kitchens closed in the holidays, visits can be timed around term or rota, keeping the filters ready for the busy weeks.
High Barnet questions
Do you clean school canteen extracts around High Barnet out of term?
Yes, and it’s the easiest time to do it. There are about 21 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of High Barnet. Tell us your holiday dates and we’ll book the visit for when the site is empty.
Which council inspects kitchens in High Barnet?
The local authority for High Barnet is Barnet council, and its environmental health team does the inspecting. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.
What happens to the dirty filters?
We take them away to be cleaned, so your staff do not have to wash them. A clean set is fitted in their place.
Do you have insurance?
Yes. Duct Doctor is fully insured, and the details are available on request.
Can we book visits on a schedule?
Yes. Scheduled maintenance plans are part of what we do, set at the interval the system needs. Each report recommends when the next visit should be.
What about areas you can’t get to?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
Which accreditations do you hold?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’ve been trading since 2009 and we’re fully insured.
How long does the visit take?
That depends on how much there is to do, but for a typical site it takes less than an hour in most kitchens. We’ll confirm it with the quote.
Honest limits
To be straight with you, some problems need a different fix:
- Greasy ducts and risers that a filter change will not reach
- Grease behind the filters that a swap can’t remove
- Odours from the discharge that filters won’t stop
Not sure which it is? You can call us on 0345 646 2711 or send us an email and we will tell you honestly.
What the work covers
- School and hospital kitchens
- Baffle filters
- Restaurants and pubs
- Wall canopies
- Mesh filters
- Island canopies
Fixed quotes for grease filter exchange in High Barnet
The diagnosis comes before the price. The main factors are:
- One-off work versus a regular cycle
- The times the site is available
- The condition we find in the survey
- Whether several sites go on one quote
When the work has to happen, how we reach it and how big the site is can all change the price. Each of those is built into the quote, and the price is fixed before we start.
What we need to know
Photos and a few facts are often enough to price the work. Send what you can of the following:
- Your opening hours and when the area is out of use
- Photos showing the whole system and its surroundings
- Close-ups of filters, grilles, hatches or access panels
- Problems your staff have spotted
Quotes are quick. Send a few details and photos, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
What grease filter exchange looks like in High Barnet
Food Standards Agency records include about 22 bars, pubs and nightclubs within about 1.5 miles of central High Barnet. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Environmental health officers from Barnet council inspect food businesses in High Barnet. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. A TR19® certificate and photo report after each clean gives you a record to show an inspector. London Fire Brigade covers High Barnet. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract.
Bursars and site managers at schools such as Foulds School tend to book extract cleaning for when the kitchen is empty. Healthcare kitchens, like those at hospitals such as Barnet General Hospital (about 0.5 miles south-west), often cook for long hours, which puts them in BESA’s heavier-use bands. A hall kitchen that only cooks for events, whether near Christ Church or elsewhere in High Barnet, still needs its extract cleaned, just less often.
High Barnet is about 1 mile north-west of Barnet, in Greater London. Whatever kind of site you run in High Barnet, grease filter exchange is something we can help with. We can work out of hours so the site keeps running. 764 places in Greater London are on our list, from busy centres to quieter spots. London is in our area too, about 12 miles from High Barnet.
Postcode districts we cover here for grease filter exchange: EN5. Grease filter exchange is available to premises on Byng Road, Park Road and Kings Road and the roads around them. Being close to the A1081, High Barnet is easy for our technicians to reach at any hour. We also cover the places around High Barnet: Hadley (1 mile east), Arkley (1 mile south-west), Kitts End (1 mile north), Totteridge (1 mile south) and Rowley Green (2 miles west). We also work in nearby towns such as London (12 miles south-east), City of Westminster (10 miles south), Marylebone (10 miles south), Kensington (11 miles south), St Pancras (10 miles south-east) and Shoreditch (11 miles south-east).
Near you in High Barnet
We work in commercial kitchens and buildings around Susi Earnshaw Theatre School, The White Lion pub and Queen Elizabeth's School. The nearest railway station is Hadley Wood station, about 1.6 miles north-east. A little further out are Spires Shopping Centre (less than half a mile east) and Barnet General Hospital (0.5 miles south-west). For a walk, there’s Barnet Countryside Centre and Darland's Lake.