Greater London · Grease filter exchange

Grease filter exchange in Finchley, Greater London

Professional grease filter exchange in and around Finchley, timed so the site keeps working and finished with a written report and pictures.

  • Weak extraction at the canopy
  • Filters that leave gaps in the canopy
  • Gaps where filters have been removed

Book grease filter exchange in Finchley

How we price grease filter exchange

There’s no set price list, because sites vary so much. What we look at:

  • A single visit or a regular plan
  • When the work can happen, such as evenings, overnight or weekends
  • The size of the system
  • Site requirements such as sign-in and permits

Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we’ll go through it with you.

What we need to know

You do not need the technical terms. Just send:

  • Your opening hours and when the area is out of use
  • Close-ups of filters, grilles, hatches or access panels
  • Photos showing the whole system and its surroundings
  • The paperwork from the last visit, if you have it

Getting a quote does not take long. 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.

Grease filter exchange for kitchens and businesses in Finchley

Grease filters are the first line of defence in a kitchen extract. Their job is to stop grease getting further into the system, but only while they’re reasonably clean. With grease filter exchange, clean filters replace greasy ones at regular intervals. The work covers school and hospital kitchens, baffle filters and mesh filters, and the jobs we see most are missing filters in the filter bank and grease dripping from the canopy.

London kitchens tend to trade late and open early, so extract cleaning in Finchley is typically done overnight, after the last service. Before the clean, we agree loading, parking and roof access with whoever manages the building.

Think of the report as the system’s health record: a dated account with pictures of everything we did. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal and sits alongside the report.

Place
Finchley (N3, N2, N12, NW11)
Wider area
Greater London
Records
Photo report after every visit
Quotes
A fixed price before work begins
When we work
When your site is closed, plus a 24/7 line
Telephone
0345 646 2711
Reviewed
30 October 2026
Duct Doctor duct and vent cleaning vans lined up in a car park with the team

Common questions in Finchley

Who inspects food businesses in Finchley?

In Finchley, it’s Barnet council that carries out food hygiene inspections. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.

Do you clean school canteen extracts around Finchley out of term?

Yes. The holidays are the usual time for school work. The FSA’s register shows about 48 schools and colleges with food registrations within roughly a mile and a half of Finchley. Tell us your holiday dates and we’ll book the visit for when the site is empty.

Does the report say when we need you again?

Yes. Every report includes a recommended date for the next visit, based on what we found and how the system is used.

What if some of our filters are damaged?

Each filter is looked at when we exchange. We tell you about any that are damaged, because gaps let grease into the plenum.

Is Finchley in your area?

Yes. Finchley is part of the area we cover, as part of our area across London and the South East.

Do I get a report after the visit?

Yes. Each visit ends with a written report and pictures, showing what was done, anything we couldn’t reach and when the next visit is due. Where the work is a TR19® Grease clean, there’s also a certificate issued through the BESCA Vent Hygiene Elite portal.

Which kinds of sites do you work on?

Any commercial site with kitchens or ventilation, from a single café to a large school. We work with hotels, schools, care homes, offices, retail and leisure sites.

Do you work with multi-site operators?

Yes. One number covers all your sites in our area, with visits on a regular schedule.

Different parts, different methods

Mesh filters

Mesh traps grease between its layers, so a quick rinse rarely gets it clean.

The plenum

Clean filters reduce the grease reaching the plenum, but it still needs cleaning as part of TR19.

Why deal with it now?

Grease-loaded filters are a fire risk in their own right. A flare-up on the range can reach them and grease in the duct can carry a fire further. Keeping filters clean takes some of that fuel away. London sites work long hours, and the longer a job is left, the bigger it gets.

The price reflects the work, not guesswork. That is why every job is surveyed first, and why the quote is fixed before work begins.

Why book with us

  • We diagnose before we treat
  • CHAS and SafeContractor accredited, with ISO 9001
  • We’re fully insured
  • A written report with pictures after each visit

Take a look at our cost guide or our accreditations.

Honest limits

Before you book, it helps to know what’s not included:

  • A canopy that needs a proper clean
  • An extract that was undersized from the start
  • Grease already built up in the ductwork, which needs a full TR19 clean

If in doubt, give us a ring on 0345 646 2711 or email us and we will say what we think.

What we work on in Finchley

  • Mesh filters
  • Wall canopies
  • Restaurants and pubs
  • School and hospital kitchens
  • Baffle filters
  • Island canopies

Grease filter exchange around Finchley

There are about 180 restaurants, cafés and canteens and about 55 takeaways in Finchley and the streets around it, up to about 1.5 miles out, according to the Food Standards Agency’s register. Any of those kitchens with a canopy relies on its filters to catch grease before it reaches the duct. Night work suits London kitchens, and roads and loading bays tend to be quieter too. Finchley sits within the area of London Fire Brigade. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.

A hall kitchen that only cooks for events, whether near St Paul's Finchley or elsewhere in Finchley, still needs its extract cleaned, just less often. Healthcare kitchens, like those at hospitals such as Finchley Memorial Hospital (about less than half a mile north-east), often cook for long hours, which puts them in BESA’s heavier-use bands. If you look after a school kitchen, at a school such as Manorside Primary School or anywhere near Finchley, the holidays are the usual time for a TR19® clean.

Finchley is about 6 miles north of City of Westminster, in Greater London. From the centre of Finchley to the outskirts, we cover grease filter exchange for every kind of premises, from a single unit to a large public building. 764 places in Greater London are on our list, large and small. For sites nearby, see our London page, about 8 miles away.

All of N3, N2, N12 and NW11 is within our area for grease filter exchange, from the main roads to the quietest streets. You’ll find streets such as Station Road, Chaplin Square and Market Place, all of which we cover for grease filter exchange. Finchley is on the B1462, which makes it straightforward for our technicians to reach for out-of-hours visits. If your site is just outside Finchley, we cover Church End (1 mile west), Woodside Park (1 mile north), North Finchley (1 mile north), Friern Barnet (2 miles north-east) and Oakleigh Park (2 miles north). Further out, we also cover London (8 miles south-east), City of Westminster (6 miles south), Marylebone (6 miles south), Kensington (7 miles south), St Pancras (6 miles south-east) and Shoreditch (7 miles south-east).

What’s near Finchley

Around Finchley, our work takes us to kitchens and buildings near The Elephant Inn, Bishop Douglass School and Francis Skaryna Belarusian Library and Museum, among other places. Other local landmarks include Victoria Park (less than half a mile north) and Woodhouse College (1 mile north-east). The nearest railway station is New Southgate station, roughly 1.9 miles north-east. Nearby you’ll also find Finchley Memorial Hospital (under half a mile north-east) and Grand Arcade (1 mile north). The countryside around Finchley includes Highgate Hill and Lakeside Nature Reserve.

Map of Finchley © OpenStreetMap contributors

In-house cleaning or a specialist?

Staff cleaning and specialist work aren’t the same thing. 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. That part needs specialist access and equipment.

Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. That’s our job.

What we do, step by step

We start by comparing what we find with the survey or your pictures. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes a short visit, depending on how many filters the canopies hold. We fit London jobs around the building rather than the other way round, so a visit in Finchley is usually out of hours.

  1. We look at the canopies and the condition of the filters.
  2. We note any filters that are bent, damaged or missing.
  3. We exchange the dirty filters for a clean set.
  4. We check the filters are seated and the canopy is ready to use.
  5. Anything that needs attention, such as a greasy plenum, is pointed out.

Preparing for the visit

  • Let us know about parking and loading
  • Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
  • Mention any sign-in, permit or induction we need

How to get a quote

Quoting starts with a diagnosis, either from photos and details you send or from a site visit. After that, you get a fixed price for the work, before work begins.

Ask for a quote

Related advice

Between visits

Think of this as the after-treatment advice, short and simple:

  • Never cook with the extract switched off
  • Make sure no filter is left out
  • Keep filter exchange and TR19 cleaning on the same plan
  • Tell us if a filter is bent or damaged

Nothing changes for your staff, except one less greasy job. Just keep the canopy clear for the next visit and let us know of any changes to opening hours.

Filter exchange and TR19 cleaning work best together. Setting both up on a schedule means neither slips.

BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London