Greater London · Grease filter exchange
Carshalton grease filter exchange
Grease filter exchange for businesses, landlords and public buildings in Carshalton. CHAS, SafeContractor and ISO 9001, and fully insured.
- A canopy that drips grease
- Bent or damaged filters that do not sit properly
- Poor airflow through the filters
Grease filter exchange for kitchens and businesses in Carshalton
Good filters only work when they fit properly. Gaps in the filter bank are a direct route into the plenum and every filter is checked when we swap them. Damaged filters are flagged so they can be replaced. The work covers mesh filters, wall canopies and island canopies, and common reasons people get in touch are a canopy that drips grease and grease left in baffles after washing.
London kitchens tend to trade late and open early, so extract cleaning in Carshalton 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.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we are fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Place
- Carshalton (SM5, SM1, SM6)
- Wider area
- Greater London
- Reporting
- Report and photos after the visit
- Quote
- Fixed quote, normally within a working day
- Hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
Carshalton kitchens: local notes
The Food Standards Agency lists about 36 pubs and bars as registered food businesses across Carshalton and its immediate surroundings (about a mile and a half). Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. In London, kitchens are typically cleaned overnight, when the kitchen is closed and loading is easier. Environmental health officers from Sutton council inspect food businesses in Carshalton. Extraction counts as kitchen equipment, so its condition can come up on the day. A TR19® certificate and photo report after each clean gives you a record to show an inspector.
If you run a café or takeaway near Carshalton station, early starts and late finishes leave little time to clean, so overnight extract cleaning suits. If you run a church or community hall kitchen, near Church of All Saints or elsewhere in Carshalton, its extract still collects grease from every lunch and event.
Carshalton is about 4 miles south-east of Wimbledon, in Greater London. Across the SM5 area, we can take on grease filter exchange. Across Greater London, we cover 764 places, and Carshalton is one of them. You can also see our page for London, about 10 miles away.
Grease filter exchange in SM5, SM1 and SM6 follows the same survey, fixed quote and written report as everywhere else we cover. Whether your site is on Station Road, High Street and The Square or a nearby road, our technicians can take on the work. With the B277 and B278 close by, Carshalton is simple for us to get to at any hour. We also cover The Wrythe (1 mile north), Wallington (1 mile east), St Helier (1 mile north-west), Rosehill (1 mile north-west) and Benhilton (1 mile west). We also work in nearby towns such as London (10 miles north), City of Westminster (10 miles north), Marylebone (10 miles north), Kensington (9 miles north), St Pancras (11 miles north) and Shoreditch (12 miles north).
Landmarks near Carshalton
Typical jobs here are in premises near The Railway Tavern, Carshalton Park and Sutton College of Learning for Adults and the streets around them. Carshalton has its own railway station: Carshalton station. Other landmarks nearby include St Helier Hospital (1 mile north-west) and Centrale Croydon (2.9 miles east). The countryside around Carshalton includes Duppas Hill and Sutton Ecology Centre Grounds.
What the work involves, part by part
The plenum
With good filters, less grease ends up in the plenum, but it still needs cleaning as part of TR19.
Busy restaurant and pub kitchens
Heavy cooking means more grease reaching every part of the system. Regular changes help protect the ductwork.
Also near Carshalton
Also in Carshalton
Carshalton: your questions answered
Can a school canteen extract in Carshalton be done out of term time?
Yes. The holidays are the usual time for school work. With about 35 schools and colleges on the FSA’s register within roughly a mile and a half of Carshalton, it pays to plan holiday dates ahead. Just give us a ring on 0345 646 2711 or email us with your term dates and we will plan around them.
Which fire authority looks after Carshalton?
Fire safety enforcement in Carshalton is handled by London Fire Brigade. Records of extract cleaning are a sensible thing to have ready if a fire safety officer carries out an audit.
What happens to the dirty filters?
We take them away to be cleaned, so your staff don’t have to wash them. Clean filters go straight in.
Is there a cleaning option for the filters we have?
Yes, filter cleaning is available. We will check your filters first because bent or damaged ones may need replacing.
Can you look after several sites?
Yes. We work across South East England and London, so we can schedule a run of sites on one programme. Each site gets its own report and photos.
Do you cover Carshalton?
Yes. We cover Carshalton and across Greater London, within our South East and London area. To book, give us a ring on 0345 646 2711 or send us an email.
Do we need to close the kitchen while filters are changed?
A filter change is quick and can be timed around service. The canopy shouldn’t be used without filters, so we swap them in one go.
How far ahead should we book?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and if it’s an emergency, call us any time.
Between visits
Think of this as the after-treatment advice, short and simple:
- Book full TR19 cleans alongside filter changes
- Watch for grease drips between visits
- Mention it if the kitchen gets busier
- Keep every filter in place during service
Your team carries on as normal, without the filter washing. Make sure we can reach the canopy on exchange day and let us know of any changes to opening hours.
Bent or missing filters let grease straight past. Replacing them early protects the plenum and ductwork.
How it works
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. Before we leave, the area is tidied and the paperwork follows. Many London buildings have a managing agent, a security desk or a permit-to-work system, so tell us who to contact in Carshalton.
- First, we check the canopies and the filters in them.
- We note any filters that are bent, damaged or missing.
- We exchange the dirty filters for a clean set.
- We check the filters are seated and the canopy is ready to use.
- We tell you if the plenum or canopy needs a clean.
How to prepare
- Tell us about site rules, permits or sign-in
- Allow time for equipment near the work to be turned off and cool down
- Make sure someone can let us in and lock up afterwards
How to get a quote
There’s no standard price list, because every site is different. We look at your system first, from pictures or on a visit, and then send you a fixed quote. To get going, call us on 0345 646 2711 or use the quote form.
Advice
Leave it or put it right?
Leaving filters too long pushes more grease into the plenum and ducts. The ductwork then loads up faster and grease readings can rise between cleans. London sites work long hours, and the longer a job is left, the bigger it gets.
A single site or a whole portfolio, the quote is built the same way: the work involved, the access and the timing. The price is fixed before we start.
Why choose Duct Doctor in Carshalton
- CHAS and SafeContractor accredited, with ISO 9001
- We diagnose before we treat
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Trading since 2009
See what affects the cost and our accreditations and certificates.
Do you need grease filter exchange in Carshalton?
Filters get bent and damaged with handling. A bent filter doesn’t seat properly, leaving gaps for grease to slip through.
Signs it’s time to call us include:
- Bent or damaged filters that don’t sit properly
- Filters that come out of the sink still dirty
- Smoke and heat lingering under the hood
- Blocked baffle filters
A hospital like St Helier Hospital, about 1 mile north-west, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
Questions to ask before booking
- What’s included in the scope, part by part
- What insurance they carry
- Which accreditations they hold, and whether you can check them
- If they look at the system before pricing
When something else is needed
We’ll always give you a straight diagnosis, so here’s what this work cannot put right:
- A heavily greased plenum or canopy, which needs cleaning to TR19
- An extract that was undersized from the start
- Grease deep in the extract system
If you are not sure, just ring 0345 646 2711 or use the quote form and we’ll give you a straight answer.
Where we work
- Wall canopies
- Restaurants and pubs
- School and hospital kitchens
- Mesh filters
- Baffle filters
- Island canopies
What affects the cost of grease filter exchange
Every site gets its own quote. This is what makes a difference:
- Whether several sites go on one quote
- The times the site is available
- Travel, parking and unloading
- The condition of the system
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.
Asking for a quote
Before you ask for a quote, gather:
- How we’d reach plant on a roof or in a plant room
- Your last certificate, test record or report
- Wide photos of the system and the area around it
- Detail shots of panels, filters and grilles
Quotes are quick. Call or email with a few details and you will usually have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.