Greater London · Grease filter exchange
Grease filter exchange in Oval, Greater London
Grease filter exchange across Oval and nearby, booked around your opening hours and signed off in writing with photos.
- Filters that leave gaps in the canopy
- A canopy running with filters missing
- Grease building up behind the canopy filters
About our grease filter exchange in Oval
In Oval, our filter exchange runs on a schedule set by how much the kitchen cooks. Busy kitchens need changes more often while a lighter kitchen can go longer. The interval is agreed before the first visit. If you are dealing with damaged filters letting grease past and weak extraction at the canopy, we can put it right.
London kitchens are often tucked into basements or the back of a building, with extract ducts that can climb several floors to discharge at roof level. For a kitchen in Oval, that usually means a longer system to clean and more access panels to plan around.
Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Where
- Oval (SW8, SW9, SW1P)
- Wider area
- Greater London
- Reporting
- Report and pictures after the visit
- Quotes
- A fixed price before work begins
- Working hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Signs you need grease filter exchange in Oval
Every fry, grill and sauté sends grease-laden vapour upwards. Much of it is trapped by the filters so they gradually clog and airflow falls away.
Common reasons sites call us are:
- Poor airflow through the filters
- Blocked baffle filters
- Grease building up behind the canopy filters
- Grease dripping from the canopy
A hospital like The Gordon Hospital, about 1 mile north-west, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
What your quote should include
- When they can work, and whether that is outside your opening hours
- Whether the figure could change on the day
- Whether the whole system is included, or only the parts that are easy to reach
- Whether the quote is based on a survey or photos
Common questions in Oval
Can you work in Oval outside opening hours?
Yes, out-of-hours work is a big part of what we do. It means the site in Oval keeps running as normal. Your opening times are the first thing we ask for.
Who is the fire and rescue service for Oval?
Oval is in the area of London Fire Brigade. TR19® isn’t law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
How much does a filter exchange service cost?
Pricing depends on the kitchen, so we quote once we know your filters and schedule. We give you a fixed quote before the service starts.
What if some of our filters are damaged?
A badly damaged filter should be replaced. We will show you which ones when we find them.
What accreditations do you have?
We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we are fully insured.
What if parts of the system cannot be reached?
Anything we cannot reach goes on the report, with a note of where it is, and we tell you what would make it reachable, for example new access panels.
What paperwork should we keep on file?
Each report and certificate we give you, filed in the maintenance log with your in-house cleaning records. BESA says certificates should show the date, location and technician.
Do you take the used filters away?
We do. Used filters go with us to be cleaned while a clean set goes in.
Managing agents and facilities teams in Oval
Facilities teams in offices, schools and healthcare sites book us too across Greater London. Work can be phased by floor, building or site to keep disruption down.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.
What happens on the day
Everything the job needs comes with us, from protective sheeting to tools and access equipment. All we need from you is clear access and the right equipment switched off. The visit takes a short visit, depending on how many filters the canopies hold. If your building in Oval has sign-in rules, permits or key holders, mention them when you book.
- First, we check the canopies and the filters in them.
- Any damaged or missing filters are noted.
- We exchange the dirty filters for a clean set.
- The filters are checked for fit before we go.
- Anything that needs attention, such as a greasy plenum, is pointed out.
How to prepare
- Mention any locked doors, roof access or ceiling voids
- Let us know about parking and loading
- Clear loose items from the work area
Get a fixed quote
Quoting starts with a diagnosis, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work, before work begins.
Read more
Looking after it afterwards
Looking after the system between visits is straightforward, and it makes the next visit easier:
- Make sure we can reach the canopy on exchange day
- Look out for drips from the canopy
- Mention it if the kitchen gets busier
- Always run the extract while cooking
Between visits, check that every filter is still in place. A missing filter leaves a gap for grease, so let us know if one goes missing or gets damaged.
A kitchen that is getting busier needs its filters changed more often. Changing the interval early stops grease building up unseen in the ducts.
What staff can safely do
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, alongside our reports.
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, which is where we come in.
Nearby places to Oval
Other services in Oval
What the work involves, part by part
School, care home and staff kitchens
Visits can be planned around holidays and quieter periods, keeping the filters ready for the busy weeks.
The plenum
Heavy grease in the plenum often follows clogged or missing filters, or that a full clean is due.
Grease, kitchens and Oval
The FSA’s data shows about 156 pubs and bars and about 64 hotels and B&Bs registered within about 1.5 miles of central Oval. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Night work suits London kitchens, and roads and loading bays tend to be quieter too. The fire and rescue service for Oval is London Fire Brigade. 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.
School kitchens, at schools like St Stephen's Church of England Primary School for example, are typically cleaned in the holidays so no lunches are lost. If you cook for passing trade around Vauxhall station, the extract can be cleaned between your last and first customer.
Oval is about 1 mile north of Stockwell, in Greater London. Across the SW8 area, we can carry out grease filter exchange at your premises. We cover 764 places across Greater London, large and small.
Work in SW8, SW9 and SW1P is surveyed, quoted and booked the same way as anywhere else. We cover sites on Lett Road, Rita Road and Wyvil Road and the roads around them. Being close to the A203 and A3204, Oval is simple for us to get to for grease filter exchange. Nearby, we also carry out grease filter exchange in Kennington (1 mile north), South Lambeth (1 mile south-west), Little Portugal (1 mile south), North Brixton (1 mile south-east) and Vauxhall (1 mile north). Further out, we also cover City of Westminster (3 miles north-west), Marylebone (3 miles north-west), Kensington (4 miles west), St Pancras (3 miles north), Shoreditch (4 miles north-east) and Walthamstow (8 miles north-east).
Around Oval
Around Oval, our work takes us to kitchens and buildings near Vauxhall Park, Lambeth Palace Library and St Peter's School. Other local landmarks include Archbishop Tenison's Church of England School (less than half a mile north-east) and Crown and Thistle pub (less than half a mile south-west). Oval has its own railway station: Vauxhall station. A little further out are Type Museum (0.5 miles south) and The Gordon Hospital (1 mile north-west). For a walk, there’s Bellenden Road Nature Garden and Ludgate Hill.
Why act early in Oval
Dripping canopies and greasy smells often start with the filters. Drips land on surfaces and equipment below and that’s the kind of thing inspectors look for. In Oval, as across London, ductwork often passes through shared risers and other people’s space.
The cost depends on how big the system is, what state it’s in and how easy it is to reach. You get a fixed price before work begins, so there are no surprises.
Why choose Duct Doctor in Oval
- In business since 2009
- A fixed price before any work starts
- A single point of contact for sites across the South East and London
- We’re fully insured
See our cost guide and how to check a contractor.