Greater London · Grease filter exchange

Barnet grease filter exchange

Grease filter exchange in Barnet, surveyed first and signed off with a written report and photos. Call for a fixed quote.

  • Filter washing that keeps being missed
  • Grease dripping from the canopy
  • Filters so greasy the air can barely pass

Grease filter exchange across Barnet

Grease filter exchange in Barnet, done properly

The filters in the canopy are the first thing cooking vapour meets. Their job is to stop grease getting further into the system and they do it best when they’re clean. With grease filter exchange, clean filters replace greasy ones at regular intervals. Typical jobs include a canopy that drips grease and a greasy plenum behind the filters, across mesh filters, island canopies and school and hospital kitchens.

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

It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.

Place
Barnet (EN5, EN4, N20, N11)
Region
Greater London
Reporting
Report and photos after the visit
Quote
A fixed quote up front
When we work
Overnight and weekend work, 24/7 emergency callout
Phone
0345 646 2711
Page updated
30 October 2026
The Duct Doctor team standing beside their branded white and blue vans

When to call us in Barnet

Wherever you are, Barnet included, filter washing is the job that gets skipped when the kitchen is busy. It only takes a couple of missed weeks for filters to fill with grease.

It’s time to book a visit if you see:

  • Filters that come out of the sink still dirty
  • A canopy that drips grease
  • Staff short of time to wash filters
  • A greasy plenum behind the filters

If you look after a school kitchen, at a school such as Grasvenor Avenue Infant School or anywhere near Barnet, the holidays are the usual time for a TR19® clean.

Before booking anyone

  • Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
  • What insurance they carry
  • What records you’ll receive afterwards
  • When the next visit should be, and why

Choosing a duct cleaning contractor

Between visits

How long the results last depends on use and care. Here’s what we suggest:

  • Wipe the outside of the canopy as part of daily cleaning
  • Always run the extract while cooking
  • Report damaged filters so they can be replaced
  • Do not let the full clean slip because filters are changed

If the plenum behind the filters looks greasy, we say so. It can be a sign that a full TR19® clean is due, and we can arrange it.

Dripping filters are a clear sign they’re full. A clean set straight away cuts the grease in the canopy, and it’s worth checking the plenum too.

For landlords and multi-site operators

Managing agents often deal with us directly. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.

We also work for facilities teams across offices, schools and healthcare across Greater London. Work can be phased by floor, building or site around the people who use them.

Grease, kitchens and Barnet

There are about 109 cafés, restaurants and staff canteens and about 43 sandwich bars and takeaways within roughly a mile and a half of the centre of Barnet, 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. Food hygiene inspections in Barnet are the job of Barnet council’s environmental health team. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Our report lists what was cleaned and when, which is useful to have ready.

Where a hall near St John's United Reformed Church, or anywhere in Barnet, hosts lunch clubs or events, its extract gathers grease just as a café’s does. Commuter trade near New Barnet station can mean long cooking hours, and long hours put a kitchen into BESA’s more frequent cleaning bands.

Barnet is about 9 miles east of Watford, in Greater London. Anywhere in EN5, we cover grease filter exchange for commercial sites. Barnet is one of 764 towns, villages and districts in Greater London where we work for commercial clients. London is in our area too, about 11 miles from Barnet.

Grease filter exchange in EN5, EN4, N20 and N11 is surveyed, quoted and booked the same way as anywhere else. Local streets include Station Road, High Street and Sambroke Square, and we cover them all for grease filter exchange. Barnet is on the B193 and A1081, so it’s easy for us to get to for out-of-hours visits. Close by, we work in Underhill (1 mile west), New Barnet (1 mile east), Monken Hadley (1 mile north-west), Hadley Wood (1 mile north-east) and Cockfosters (1 mile east). Within a short drive, we also cover London (11 miles south), City of Westminster (9 miles south), Marylebone (9 miles south), Kensington (10 miles south), St Pancras (9 miles south) and Shoreditch (10 miles south-east).

Landmarks near Barnet

Typical jobs here are in premises near Queen Elizabeth's Girls' School, The Railway Tavern and Highlands Gardens, among other places. The closest station to Barnet is New Barnet station, roughly 0.6 miles east of the centre. Well-known places in the area include Barnet General Hospital (1.2 miles west) and Francis Skaryna Belarusian Library and Museum (2.1 miles south). Open spaces near Barnet include Darland's Lake and Greenhill Gardens.

Map of Barnet © OpenStreetMap contributors

The process

On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool before any work starts, and floors and nearby surfaces are sheeted. On site, it takes anything from a few minutes to an hour or so, depending on the number of filters. Before any visit in Barnet, we agree where the van can stop and how equipment reaches the system.

  1. We record the number, size and type of your filters.
  2. We set the interval with you.
  3. The dirty set is lifted out.
  4. A clean set is fitted and checked for gaps.
  5. The dirty filters leave with us and the next visit is booked.

Preparing for the visit

  • Tell us the best time to work, such as after service or at a weekend
  • Mention any parking or loading restrictions
  • Arrange a key holder or contact on site

Get a fixed quote

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. Once you have those, phone us on 0345 646 2711 or email us.

Get a price

Read more

Common questions in Barnet

What do you need to know about parking in Barnet?

Tell us where a van can stop near your site in Barnet, and about any building rules on loading. Where restrictions apply in the day, an evening or overnight visit usually gets round them.

Who inspects food businesses in Barnet?

That is Barnet council, whose environmental health officers carry out food hygiene inspections in Barnet. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.

What types of filter do you exchange?

Both baffle filters and mesh filters are covered. At the start, we note what your canopies use so every set we bring fits.

Is there a cleaning option for the filters we have?

We can. Cleaning your existing filters is an option, and others prefer a straight swap. We make sure the canopy is ready for service either way.

Do you survey before quoting?

Yes. Every job is surveyed first, from your pictures and details, or with a visit where necessary. A fixed quote follows.

Can you give a price for filter changes?

Pricing depends on the kitchen, so we quote once we know your filters and schedule. You get a fixed price before the service starts.

How do you protect the area?

By covering it before any work starts. The work is kept contained and leave the area clean.

Do you provide a certificate or report?

Yes. Every visit ends with a written report and photos, covering the work, any areas we couldn’t access and the recommended next date. Kitchen extract cleans to TR19® Grease also get a certificate through the BESCA Vent Hygiene Elite portal.

In-house cleaning or a specialist?

Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.

A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.

When something else is needed

We will always give you a straight diagnosis, so here’s what this work can’t put right:

  • An extract that was undersized from the start
  • Extraction problems caused by the fan rather than the filters
  • A heavily greased plenum or canopy, which needs cleaning to TR19

If you’re not sure, just call us on 0345 646 2711 or send us an email and we will give you a straight answer before booking.

What we work on in Barnet

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

What affects the quote in Barnet

There’s no set price list, because no two systems are the same. What we look at:

  • Site rules, permits and inductions
  • When the work can happen, such as evenings, overnight or weekends
  • Parking and loading at the site
  • One-off work versus a regular cycle

Leaving it longer rarely makes the work cheaper. 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 us and we’ll give you an honest view and a fixed quote.

What to send for a quote

There’s no need for technical detail. It helps if you can send:

  • Close-ups of filters, grilles, hatches or access panels
  • The roof, plant room or outside wall the system runs to
  • Photos showing the whole system and its surroundings
  • The site address and the type of premises

For a fixed quote, call us on 0345 646 2711, or send details by email and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. You will usually have a quote within one working day.

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