Greater London · Grease filter exchange
Grease filter exchange in Aldwych, Greater London
We cover Aldwych for grease filter exchange. Fixed quotes, work around your opening hours and photo reports as standard.
- Hand-washed filters that still look greasy
- Staff short of time to wash filters
- Poor airflow through the filters
Grease filter exchange for kitchens and businesses in Aldwych
Baffle filters and mesh filters both fill with grease. Once they’re clogged, airflow drops and the extract struggles. Regular exchange keeps the air moving. Common call-outs are for grease building up behind the canopy filters and gaps where filters have been removed, across mesh filters, restaurants and pubs and wall canopies.
In London, few kitchens can spare a day to close, so extract cleaning in Aldwych is typically done overnight, after the last service. Parking, loading and access to the roof are agreed with the building before the night of the clean.
It’s worth checking any contractor’s accreditations. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.

- Where
- Aldwych (W1D, WC2H, W1F)
- Region
- Greater London
- Paperwork
- Photo report after each visit
- Quotes
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Updated
- 30 October 2026
What we are called out for in Aldwych
However long the kitchen cooks each day, the filters see every minute of it. A kitchen that cooks all day loads its filters quickly so changes need to come round sooner.
If you notice any of these, it’s worth a diagnosis:
- Grease collecting in the filter channels
- Filters that leave gaps in the canopy
- Smoke and heat lingering under the hood
- Filters so greasy the air can barely pass
If you run a church or community hall kitchen, near St Mary le Strand or elsewhere in Aldwych, its extract still collects grease from every lunch and event.
Comparing quotes
- What paperwork you get at the end
- Proof of accreditation you can verify
- When the next visit should be, and why
- Whether the quote shows VAT
Staff cleaning versus specialist work
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Also near Aldwych
More services for Aldwych
Leave it or put it right?
Once filters are saturated, more grease gets past them. The ductwork then loads up faster and grease readings can rise between cleans. In Aldwych, as across London, ductwork often passes through shared risers and other people’s space.
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we will explain each part.
Why Aldwych businesses choose us
- Fixed quotes from a survey or pictures
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- We diagnose before we treat
- One contact for all your sites in London and the South East
Take a look at how cleaning jobs are priced and how to check a contractor.
Common questions in Aldwych
Who carries out food hygiene inspections in Aldwych?
Food hygiene inspections in Aldwych are carried out by Westminster council. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
How do you handle parking and loading in Aldwych?
Tell us where a van can stop near your site in Aldwych, and about any building rules on loading. Much of our London work is done overnight, which helps.
Is filter exchange enough instead of a full extract clean?
It doesn’t. Filters do not catch everything, so grease still reaches the ductwork and the whole system still needs its TR19 clean.
What do you do with what you remove?
It leaves the site with us when we go. During the work, it’s contained to keep the area clean.
Do you handle baffle and mesh filters?
We exchange baffle and mesh filters. At the start, we note what your canopies use so every set we bring fits.
Do you survey before quoting?
Yes. Every job is surveyed first, either from pictures and details you send or on a site visit. Then you get a fixed quote.
What should go in our maintenance log?
Every certificate and report from each visit, filed in the maintenance log with your in-house cleaning records. BESA advises that certificates record the date, location and technician.
Are you insured?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
Honest limits
A few issues sit outside what this work can do:
- Grease behind the filters that a swap cannot remove
- Smell complaints that need odour control equipment
- Extraction problems caused by the fan rather than the filters
If in doubt, phone us on 0345 646 2711 or drop us a line and we will say what we think before booking.
What we work on in Aldwych
- Wall canopies
- School and hospital kitchens
- Mesh filters
- Island canopies
- Restaurants and pubs
- Baffle filters
How it works
Before we leave, we walk the area with whoever is on site. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. All told, the work takes less than an hour in most kitchens. Many London buildings have a managing agent, a security desk or a permit-to-work system, so tell us who to contact in Aldwych.
- First, we record the size, type and number of filters in each canopy.
- A change schedule is agreed to match the kitchen’s cooking hours.
- On each visit, the dirty filters come out of the canopy.
- Clean, dry filters are fitted in their place, with no gaps left between them.
- If a filter is damaged or the plenum needs attention, we tell you.
Getting ready for the visit
- Mention any sign-in, permit or induction we need
- Allow time for equipment near the work to be turned off and cool down
- Mention any parking or loading restrictions
Getting a quote
For a fixed quote, ring 0345 646 2711 or email us and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. We usually come back within one working day.
Advice
Grease filter exchange in Aldwych: the local picture
The FSA’s data shows about 539 pubs and bars and about 234 hotels, B&Bs and guest houses registered in and around Aldwych, up to about a mile and a half out. A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. The fire and rescue service for Aldwych is London Fire Brigade. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel. Overnight is the normal time to clean a London kitchen extract, so trading isn’t affected.
Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Aldwych is St Philip's Hospital, about under half a mile north. Commuter trade near London Charing Cross station can mean long cooking hours, and long hours put a kitchen into BESA’s more frequent cleaning bands.
Aldwych is about 1 mile north-west of London, in Greater London. We provide grease filter exchange for businesses, landlords and public buildings in Aldwych and the rest of Greater London. 764 places in Greater London are on our list, from busy centres to quieter spots.
Work in W1D, WC2H and W1F is surveyed, quoted and booked the same way as anywhere else. If you need grease filter exchange at premises on Shoe Lane, Drury Lane and New Square or a nearby road, our technicians can take on the work. With the A4 and A301 close by, Aldwych is simple for us to get to for grease filter exchange. We also cover the places around Aldwych: Clare Market (1 mile north), Covent Garden (1 mile west), Temple Bar (1 mile east), Temple (1 mile east) and Adelphi (1 mile south-west). We also work in nearby towns such as Kensington (4 miles west), Walthamstow (6 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).
What’s near Aldwych
Locally, jobs take us to businesses close to Ye Old White Horse pub, Lincoln's Inn Fields and Mercers' School. Also close by are LSE Shaw Library (less than half a mile north-east) and London Nautical School (0.6 miles south-east). Aldwych’s nearest station is London Charing Cross station, about 0.5 miles south-west. A little further out are Montfichet's Tower (0.7 miles east) and Gabriel's Wharf (0.5 miles south-east). For a walk, there’s Barnsbury Wood and Ludgate Hill.
Between visits
How long the results last depends on use and care. We suggest:
- Book full TR19 cleans alongside filter changes
- Never leave gaps in the filter bank
- Look out for drips from the canopy
- Report damaged filters so they can be replaced
Once the clean filters are in, the kitchen can cook straight away. We take the greasy filters with us for cleaning.
Bent or missing filters let grease straight past. Replacing them early protects the plenum and ductwork.
Landlords, agents and facilities managers
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so each one has its own record.