Greater London · Grease filter exchange
Grease Filter Exchange in Crooked Billet
One call covers grease filter exchange in Crooked Billet, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Grease filters clogged with grease
- Filters left unwashed on busy weeks
- Grease dripping from the canopy
Grease filter exchange in Crooked Billet, done properly
In Crooked Billet, our filter exchange runs on a schedule set by how much the kitchen cooks. Busy kitchens need changes more often, lighter ones less. The interval is agreed before the first visit. We’re often asked to deal with blocked baffle filters and missing filters in the filter bank, on restaurants and pubs, school and hospital kitchens and baffle filters.
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 Crooked Billet, that typically means a longer system to clean and more access panels to plan around.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
- Where
- Crooked Billet (SW19, SW20)
- Wider area
- Greater London
- Records
- Written report with pictures
- Price
- A fixed price before any work starts
- When we work
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Updated
- 30 October 2026
What we do, step by step
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the work takes a short visit, depending on how many filters the canopies hold. Getting kit into a London building takes planning, so let us know where we can load and park in Crooked Billet.
- We count and measure the filters in every canopy.
- Together we set how often the filters should be changed.
- At each visit, the greasy filters are lifted out.
- We fit clean filters and check they sit snugly in the housing.
- We flag any damaged filters or anything wrong with the canopy.
Before we arrive
- Plan for cooking equipment or plant to be off before we arrive
- Mention any locked doors, roof access or ceiling voids
- Mention any sign-in, permit or induction we need
Getting a quote
We don’t publish a price list, because no two systems are the same. We look at your system first, from pictures or on a visit, then send a fixed quote. To start, call 0345 646 2711 or send us an email.
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Nearby places to Crooked Billet
Also in Crooked Billet
Staff cleaning versus specialist work
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.
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
Common questions in Crooked Billet
Can you come to Crooked Billet after we close?
Yes, we can come after you close and finish before you open. It means the site in Crooked Billet keeps running as normal. Just ring 0345 646 2711, or email photos with your opening times and we’ll plan around them.
Which fire authority looks after Crooked Billet?
London Fire Brigade is the fire and rescue service for Crooked Billet. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
Do you have a 24/7 line?
Yes. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we will talk you through the next steps.
Which grease filters does the service cover?
The common types of grease filter: baffle and mesh. Tell us what you have when you ring 0345 646 2711 or use the quote form and we will confirm it on site.
Is there a cleaning option for the filters we have?
Yes, filter cleaning is available. The first step is looking at the filters you have, as damaged ones may be better replaced.
Do we lose a day’s trading?
Not typically. Out-of-hours visits keep the disruption down. Bigger sites can be done in stages to keep things running.
How regularly do grease filters need exchanging?
There’s no single answer. The schedule is based on how heavily you cook and can change if your kitchen gets busier.
Are you accredited?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’ve been trading since 2009 and we are fully insured.
Part by part
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.
Busy restaurant and pub kitchens
High-output kitchens clog filters quickly. They often need the shortest exchange interval.
What happens if it’s left?
Some kitchens in Crooked Billet wash filters themselves to save the cost of a service, and that can work if it’s done thoroughly and on time. When it does not happen reliably, an exchange makes it automatic. It’s better booked as a planned job in Crooked Billet than handled as an emergency.
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
What you get with us
- Ventilation hygiene specialists since 2009
- Out-of-hours work and a 24/7 emergency line
- We diagnose before we treat
- One contact for all your sites in London and the South East
Read how cleaning jobs are priced and how to check a contractor.
Common problems we fix in Crooked Billet
Washing filters by hand does not always get them clean. Grease lodges deep in baffles and mesh and a sink wash rarely reaches it.
Look out for these warning signs:
- Grease building up behind the canopy filters
- Grease left in baffles after washing
- Grease dripping from the canopy
- Damaged filters letting grease past
A hall kitchen that only cooks for events, whether near Christ Church or elsewhere in Crooked Billet, still needs its extract cleaned, just less often.
What your quote should include
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether they’re fully insured
- What hours they’ll be on site
- Whether the whole system is included, or only the parts that are easy to reach
Aftercare tips
How long the results last depends on use and care. We suggest:
- Report a dripping canopy early
- Keep every filter in place during service
- Keep filter exchange and TR19 cleaning on the same plan
- Keep the extract on whenever the range is in use
If the plenum behind the filters looks greasy, we say so. That might mean bringing a TR19® clean forward and we can book that in.
Dripping filters are a clear sign they’re full. Changing them now reduces the fuel above the cooking, and it’s worth checking the plenum too.
Fixed quotes for grease filter exchange in Crooked Billet
Your quote is based on your site. We take into account:
- Whether it’s a one-off visit or part of a schedule
- Where the site is and how we reach it
- How big the system is
- What state the system is in
What you pay reflects the actual work. That’s why we survey first, from pictures or on site, and the price is agreed before any work starts.
What we need to know
To speed up the quote, send us:
- Where the site is and what kind of site it is
- Problems your staff have spotted
- Photos showing the whole system and its surroundings
- Where the plant sits or the system leaves the building, such as a roof or outside wall
To get a fixed quote, give us a ring on 0345 646 2711 or drop us a line 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. You’ll usually have a quote within one working day.
Grease, kitchens and Crooked Billet
The Food Standards Agency lists about 32 pubs and bars and about 6 hotels, B&Bs and guest houses as registered food businesses in and around Crooked Billet, up to about a mile and a half out. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Crooked Billet is covered by London Fire Brigade. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. Most London extract cleaning happens at night, after the last service.
Bursars and site managers at schools such as Wimbledon College tend to book extract cleaning for when the kitchen is empty. If you run a café or takeaway near Raynes Park station, early starts and late finishes leave little time to clean, so overnight extract cleaning suits.
Crooked Billet is about 1 mile west of Wimbledon, in Greater London. Anywhere in SW19, we can carry out grease filter exchange at your premises. We cover 764 places across Greater London, large and small. We also work in London, around 8 miles away.
Here we cover the SW19 and SW20 postcode area for grease filter exchange. Local streets include Camp Road, Mckay Road and Pepys Road, and we cover them all for grease filter exchange. Other places close to Crooked Billet include Copse Hill (1 mile south-west), Wimbledon (1 mile east), Bushey Mead (1 mile south), Wimbledon Chase (1 mile south-east) and Kingston Vale (1 mile north-west). Within a short drive, we also cover London (8 miles north-east), City of Westminster (7 miles north-east), Marylebone (8 miles north-east), Kensington (6 miles north), St Pancras (9 miles north-east) and Shoreditch (10 miles north-east).
Around Crooked Billet
Around Crooked Billet, our work takes us to kitchens and buildings near Hollymount School, Cannizaro Park and Ursuline Preparatory School, among other places. The closest station to Crooked Billet is Raynes Park station, about 0.9 miles south of the centre. A little further out are Southside Wandsworth (2.7 miles north-east) and Wimbledon Museum (0.5 miles east). Open spaces near Crooked Billet include Kew Gardens Lake and Henman Hill.