Greater London · Grease filter exchange
Westerham grease filter exchange
A scheduled grease filter exchange, swapping dirty canopy filters for clean ones in Westerham, surveyed first and signed off with a written report and pictures. Call for a fixed quote.
- Grease filters clogged with grease
- Grease building up behind the canopy filters
- Drips falling from the filters onto equipment
Kitchen extracts in Westerham
The FSA’s food hygiene register shows about 19 restaurants, cafés and canteens and about 10 takeaways in and around Westerham, up to about a mile and a half out. Swapping filters on a schedule keeps kitchens like these drawing air properly. It’s Sevenoaks council that sends environmental health officers to food businesses in Westerham. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Keeping each certificate and photo report on file helps show the extract is looked after. Overnight is the normal time to clean a London kitchen extract, so trading is not affected.
Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Quebec House is about 0.2 miles south-east), access may need planning. Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Tandridge Priory is the nearest hospital to Westerham, about 2.2 miles south-west.
Westerham is about 5 miles west of Sevenoaks, in Greater London. Across the TN16 area, we cover grease filter exchange for commercial sites. We cover 764 places across Greater London, from busy centres to quieter spots. For sites nearby, see our London page, about 17 miles away.
Every address in TN16 is within our area for grease filter exchange, from busy streets to back roads. That includes premises on Market Square, London Road and High Street and nearby roads. Westerham sits on or near the A25 and B2024, so getting to you is simple for grease filter exchange. We also cover Force Green (1 mile north), Moorhouse Bank (1 mile south-west), Goodley Stock (2 miles south), The Chart (2 miles south-west) and South Street (2 miles north-west). Further out, we also cover Orpington (8 miles north), New Cross (15 miles north), Thornton Heath (12 miles north-west), Croydon (10 miles north-west), East Dulwich (15 miles north-west) and Plumstead (15 miles north).
Landmarks near Westerham
Locally, jobs take us to businesses close to The Olde House At Home Public House and the streets around them. The nearest railway station is Hurst Green station, roughly 3.4 miles south-west. Other landmarks nearby include Tandridge Priory (2.2 miles south-west). For a walk, there’s Betsom's Hill and Dryhill Nature Reserve.
Grease filter exchange in Westerham
Washing filters in the kitchen sink is messy and easily missed on a busy week. With a filter exchange, we bring a clean set and take the dirty one away, so the canopy is never left without filters. If you have damaged filters letting grease past and smoke and heat lingering under the hood, we can put it right.
In London, few kitchens can spare a day to close, so extract cleaning in Westerham is normally done overnight, after the last service. Parking, loading and access to the roof are agreed with the building before the night of the clean.
Insurers, fire officers and environmental health officers all look at records. That is why every job is written up in a report with photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Place
- Westerham (TN16)
- Wider area
- Greater London
- Reporting
- Written report with pictures
- Price
- Fixed quote, typically within a working day
- Hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026

Do you need grease filter exchange in Westerham?
Repeated removal and washing takes its toll on filters. A bent filter doesn’t seat properly, leaving gaps for grease to slip through.
Clients typically contact us after spotting one of these:
- Filters that come out of the sink still dirty
- Grease filters clogged with grease
- Bent or damaged filters that don’t sit properly
- Filters left unwashed on busy weeks
A hall kitchen that only cooks for events, whether near Church of St Mary the Virgin or elsewhere in Westerham, still needs its extract cleaned, just less often.
Comparing quotes
- What insurance they carry
- How areas they cannot reach will be recorded
- If they look at the system before pricing
- Whether the whole system is included, or only the parts that are easy to reach
Managing agents and facilities teams in Westerham
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Every building has its own written report, so each one has its own record.
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.
Between visits
Simple habits between visits make a real difference. Our advice:
- Wipe the outside of the canopy as part of daily cleaning
- Tell us if the menu or opening hours change
- Watch for grease drips between visits
- Keep every filter in place during service
We tell you if we spot anything in the canopy that needs attention. It can be a sign that a full TR19® clean is due and we can book that in.
Saturated filters let more grease through. Getting onto a regular exchange now keeps grease out of the plenum and ductwork until the next TR19 clean.
Staff cleaning versus specialist work
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We can diagnose it and quote.
Staff cleaning and specialist work are not the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they don’t reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Why act early in Westerham
Clogged filters choke the extract. The kitchen gets hotter and smokier, and the fan works harder to pull air through. A regular exchange keeps the airflow where it should be. In a London building, a problem in a duct, damper or fan rarely stays in one unit.
One small site or a whole estate, we price it on the same basis: what needs doing, how we get to it and when. You will have a fixed price before any work starts.
Why choose Duct Doctor in Westerham
- One number for every site across the South East and London
- Ventilation hygiene specialists since 2009
- Fixed quotes, typically within one working day
- Evenings, overnight and weekends, plus 24/7 emergency callout
Part by part
Canopy filter housings
Every exchange includes a check of how the filters sit since a gap is a route for grease.
Baffle filters
Baffle filters use overlapping metal blades that force the air to change direction. Grease is thrown out of the airstream and collects on the baffles.
What we do, step by step
Your staff do not need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and we take it from there. Afterwards, the area is left tidy and the written report follows. In a London area like Westerham, parking, loading and building access are planned before the day of the work.
- The filters in each canopy are measured and counted.
- An exchange schedule is agreed to suit your cooking.
- On each visit, we remove the greasy filters.
- Clean filters go in and we check they sit snugly.
- We take the greasy set away and confirm the next date.
How to prepare
- Let us know about parking and loading
- Let us know how we reach the system, including roofs, risers and plant rooms
- Agree a time when the area can be out of use
How to get a quote
To help us quote: the address, the type of site and when it’s open, a few photos and any previous report or certificate. Then ring 0345 646 2711 or email us.
Advice
Questions from Westerham
Who is the fire and rescue service for Westerham?
London Fire Brigade is the fire and rescue service for Westerham. Records of extract cleaning are a sensible thing to have ready if a fire safety officer carries out an audit.
Who inspects food businesses in Westerham?
The local authority for Westerham is Sevenoaks council, and its environmental health team does the inspecting. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
How regularly do grease filters need exchanging?
That depends on the cooking. Kitchens that fry and grill all day need changes more often than lighter ones. We agree the interval with you.
Do you work in Westerham?
Yes. Westerham is part of the area we cover, as part of our area across London and the South East.
What if some of our filters are damaged?
Filters that no longer fit properly need replacing. We’ll show you which ones on the visit.
What should go in our maintenance log?
Visit reports, certificates and your in-house cleaning logs. Insurers, fire officers and EHOs may all ask to see them, so keep them together and easy to find.
Do you offer emergency callouts?
Yes, day and night, every day of the year. Our office is open from 8am to 6pm on weekdays, with the emergency line covering every other hour.
Does a filter exchange replace TR19 cleaning?
No, the two work together. A TR19® clean deals with the whole system, with a certificate and photo report.