Greater London · Grease filter exchange
Pratt's Bottom grease filter exchange
Need grease filter exchange in Pratt's Bottom? We survey first, give you a fixed quote and work around your opening hours, then sign off with a report and pictures.
- Gaps where filters have been removed
- Hand-washed filters that still look greasy
- Poor airflow through the filters
How we handle grease filter exchange in Pratt's Bottom
Filter exchange sits between full TR19® cleans. Fresh filters help limit what gets into the ductwork though vapour still carries some grease past them. So the canopy, plenum and ducts still need their full TR19 clean. The work covers restaurants and pubs, baffle filters and island canopies, and the jobs we see most are drips falling from the filters onto equipment and a greasy plenum behind the filters.
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 Pratt's Bottom, that normally means a longer system to clean and more access panels to plan around.
For insurers and inspectors, the record counts. That’s why every job is written up in a report with pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Location
- Pratt's Bottom (BR6, TN14)
- Region
- Greater London
- Reporting
- Photo report after each visit
- Quotes
- A fixed quote up front
- Hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026

What grease filter exchange looks like in Pratt's Bottom
The FSA’s data shows about 3 bars, pubs and nightclubs registered within roughly a mile and a half of the centre of Pratt's Bottom. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Fire safety in Pratt's Bottom falls to London Fire Brigade. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. Most London extract cleaning happens at night, after the last service.
Commuter trade near Knockholt station can mean long cooking hours, and long hours put a kitchen into BESA’s more frequent cleaning bands. Church and community hall kitchens, near All Souls' Church or anywhere around Pratt's Bottom, are easy to forget, but their extracts collect grease like any other.
Pratt's Bottom is about 3 miles south of Orpington, in Greater London. For grease filter exchange in and around Pratt's Bottom, it’s easy to get a fixed quote: please call 0345 646 2711 or drop us a line. We work across South East England and London, Pratt's Bottom included. Pratt's Bottom is one of 764 places in Greater London we cover for grease filter exchange. You can also see our page for London, about 14 miles away.
We work across the BR6 and TN14 postcode area for grease filter exchange and the roads nearby. We cover sites on Orchard Road, Runciman Close and Downs View Close and nearby roads. We also cover the places around Pratt's Bottom: Halstead (1 mile south-east), Chelsfield (1 mile north-east), Bopeep (1 mile north-east), Badgers Mount (1 mile east) and Maypole (1 mile north-east). Larger places within reach include London (14 miles north-west), Shoreditch (15 miles north-west), Whitechapel (14 miles north-west), Stockwell (13 miles north-west), Orpington (3 miles north) and Wimbledon (15 miles west).
What’s near Pratt's Bottom
Typical jobs here are in premises near Hewitt's Chalk Bank and Green Street Green Primary School and the streets around them. For rail, the closest station is Knockholt station, roughly 0.8 miles east of the centre. Well-known places in the area include Crofton Roman Villa (2.4 miles north-west) and Lullingstone Castle (3.8 miles east). Not far away are Betsom's Hill and Downe Bank Nature Reserve.
Staff cleaning versus specialist work
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, they should report it rather than try to fix it. We can diagnose it and quote.
The process
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. On site, the work takes a short visit, depending on how many filters the canopies hold. Expect the work in Pratt's Bottom to happen after your last customer leaves, not during trading.
- First, we record the size, type and number of filters in each canopy.
- Together we set how often the filters should be changed.
- 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.
- Anything we notice, such as bent filters or a dirty plenum, is pointed out.
Before we arrive
- Arrange a key holder or contact on site
- Agree a time when the area can be out of use
- Mention any parking or loading restrictions
Getting a quote
To get a fixed quote, give us a ring on 0345 646 2711 or use the quote form 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. We typically come back within one working day.
Related advice
How the job changes from site to site
Baffle filters
Baffle filters are a common choice for commercial canopies. They do not clean themselves, because the grease they collect builds up.
Mesh filters
Mesh traps grease between its layers, which makes hand-washing hard work.
What we’re called out for in Pratt's Bottom
Hand-washed filters often come back still greasy. Grease hides in the folds of a baffle or the layers of a mesh and a sink wash rarely reaches it.
Clients normally contact us after spotting something like this:
- Drips falling from the filters onto equipment
- Grease filters clogged with grease
- Grease left in baffles after washing
- Grease collecting in the filter channels
Healthcare kitchens cannot easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Pratt's Bottom is Orpington Hospital, about 1.6 miles north-west.
What to look for in a quote
- Whether the work can be done while the site is closed
- Whether they’re fully insured
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether a survey comes first
Nearby places to Pratt's Bottom
Other services in Pratt's Bottom
Leave it or put it right?
When filters block, extraction suffers. The kitchen gets hotter and smokier while the fan strains. Keeping filters clean keeps the extract working properly. Every month a London system goes without attention adds to what has to be done later.
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Why us?
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- We are fully insured
- CHAS and SafeContractor accredited, with ISO 9001
- Out-of-hours work and a 24/7 emergency line
Take a look at how cleaning jobs are priced or our accreditations.
What affects the cost of grease filter exchange
The quote reflects the site in front of us. We take into account:
- Whether it’s a one-off visit or part of a schedule
- The condition we find in the survey
- How many systems or sites are involved
- Working hours and out-of-hours timing
The cost depends on how big the system is, what state it’s in and access to every part of it. You get a fixed price before work begins, so there are no surprises.
Helping us quote
When you call or email, these details help:
- When the site is open and when it’s quiet
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- A few general shots of the system
- The site address and the type of premises
For grease filter exchange in Pratt's Bottom, call 0345 646 2711 or email us. Tell us what kind of premises it is and when it’s open, and send pictures or your last report if you can. A fixed quote normally follows within one working day.
Honest limits
Some problems need a different service or another trade:
- A noisy or failed extract fan
- Grease behind the filters that a swap cannot remove
- Cooking smells reaching neighbours, which need odour control
If you’re not sure, just call us on 0345 646 2711, or send details by email and we will give you a straight answer before you book.
What we work on in Pratt's Bottom
- Mesh filters
- Wall canopies
- School and hospital kitchens
- Restaurants and pubs
- Baffle filters
- Island canopies
Questions from Pratt's Bottom
Who enforces fire safety at workplaces in Pratt's Bottom?
Pratt's Bottom is in the area of London Fire Brigade. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
Who would carry out a food hygiene inspection at a kitchen in Pratt's Bottom?
In Pratt's Bottom, it’s Bromley 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.
What if some of our filters are damaged?
We check every filter at each visit. Any that are bent or damaged are flagged since a poor fit lets grease past.
How much notice do you need?
Book as early as you can for planned work, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.
How long does grease filter exchange take?
It depends on the size of the system, but for a typical site it takes less than an hour in most kitchens. We will give you a better idea when we quote.
Do you survey before quoting?
Yes. Every job is surveyed first, either from pictures and details you send or on a site visit. A fixed quote follows.
Do you clean filters as well as exchanging them?
Yes. Cleaning your existing filters is an option, and others prefer a straight swap. We make sure the canopy is ready for service either way.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.