Greater London · Grease filter exchange
Grease filter exchange in Clapham, Greater London
Grease filter exchange for Clapham, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Filter washing that keeps being missed
- Grease filters clogged with grease
- A canopy running with filters missing
Grease filter exchange for kitchens and businesses in Clapham
Each visit is quick and tidy. The greasy filters come out, clean ones go in, and we check they’re seated with no gaps. Anything that needs attention is pointed out. Common call-outs are for bent or damaged filters that don’t sit properly and poor airflow through the filters, on island canopies, wall canopies and mesh filters.
London kitchens tend to trade late and open early, so work in Clapham is normally booked for the night or the early hours. Before the clean, we agree loading, parking and roof access with whoever manages the building.
Duct Doctor has been trading since 2009, as 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.
- Place
- Clapham (SW4, SW8, SW9)
- Region
- Greater London
- Paperwork
- Written report with pictures
- Quote
- Fixed quote, usually within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Part by part
School, care home and staff kitchens
A longer exchange interval may suit lighter cooking. The interval is set to fit.
The plenum
The plenum is the space behind the filters. Grease that gets past the filters settles there.
Grease filter exchange in Clapham: the local picture
There are about 757 restaurants, cafés and works canteens and about 239 sandwich bars and takeaways within about 1.5 miles of central Clapham, according to the Food Standards Agency’s register. Swapping filters on a schedule keeps kitchens like these drawing air properly. Clapham is covered by London Fire Brigade. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. It’s Lambeth council that sends environmental health officers to food businesses in Clapham. Extraction counts as kitchen equipment, so its condition can come up on the day. A dated certificate in the maintenance file answers the question before it’s asked.
Where a hall near St Paul's Church, or anywhere in Clapham, hosts lunch clubs or events, its extract gathers grease just as a café’s does. Bursars and site managers at schools such as Clapham Manor Primary School tend to book extract cleaning for when the kitchen is empty.
Clapham is about 3 miles north of Streatham, in Greater London. Whatever kind of site you run in Clapham, grease filter exchange is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Clapham is one of 764 towns, villages and districts in Greater London we cover for commercial clients.
Here we cover the SW4, SW8 and SW9 postcode area for grease filter exchange. That includes premises on Grafton Square, Clapham High Street and Houghton Square and nearby roads. Being close to the B224 and B303, Clapham is simple for us to get to at any hour. If your site is just outside Clapham, we cover Stockwell (1 mile east), Little Portugal (1 mile north-east), Clapham Park (1 mile south), South Lambeth (1 mile north-east) and Brixton (1 mile south-east). Further out, we also cover London (3 miles north-east), City of Westminster (3 miles north), Marylebone (4 miles north), Kensington (4 miles north-west), St Pancras (4 miles north) and Shoreditch (5 miles north-east).
Near you in Clapham
Around Clapham, our work takes us to kitchens and buildings near Lambeth Academy, Larkhall Park and Trinity Academy, among other places. There’s a railway station in Clapham itself: Clapham High Street station. Other landmarks nearby include Baynard's Castle (3.5 miles north-east) and Harrods (2.6 miles north-west). Green spaces nearby include Battersea Park Lake and Knight's Hill.
Fixed quotes for grease filter exchange in Clapham
The price is fixed before any work begins. It’s based on:
- How big the system is
- How easy every part is to reach
- Working hours and out-of-hours timing
- Site requirements such as sign-in and permits
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before we start.
What to send for a quote
Photos and a few facts are often enough to price the work. Useful things to send:
- How we’d reach plant on a roof or in a plant room
- A few general shots of the system
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Your opening hours and when the area is out of use
Here’s what helps us quote: where the site is, what it is and its opening hours, a few photos and any previous report or certificate. Then call us on 0345 646 2711, or send details by email.
Do you need grease filter exchange in Clapham?
The type of cooking matters. Frying, grilling and chargrilling produce far more grease than steaming or baking so no single schedule suits every kitchen.
What we are most often called out for:
- Weak extraction at the canopy
- Gaps where filters have been removed
- Filters left unwashed on busy weeks
- Filters that come out of the sink still dirty
If you cook for passing trade around Clapham High Street station, the extract can be cleaned between your last and first customer.
Questions to ask before booking
- Whether inaccessible sections are listed on the report
- Whether the whole system is included, or only the parts that are easy to reach
- If the quote is a fixed price or an estimate
- Whether the work can be done while the site is closed
What a clean won’t put right
Some problems need a different service or another trade:
- Greasy ducts and risers that a filter change won’t reach
- A fan that’s failing or too weak for the system
- Cooking smells reaching neighbours, which need odour control
Not sure which it is? You can ring 0345 646 2711 or email us and we’ll tell you honestly before you book.
What we work on in Clapham
- Mesh filters
- School and hospital kitchens
- Island canopies
- Restaurants and pubs
- Wall canopies
- Baffle filters
FAQs for Clapham
What do you need to know about parking in Clapham?
We plan it in advance, so let us know about loading bays, permits and access rules at the building. Much of our London work is done overnight, which helps.
Do you work overnight in Clapham?
Yes, nights and weekends are routine for us. The work in Clapham can fit around your hours. Let us know the hours you are closed and we’ll book within them.
Is TR19 a legal requirement?
No. The law sets the duty; TR19® is the benchmark used to show it’s met. Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person has to manage fire risk, and many insurers can refuse or reduce a claim without proof of cleaning.
What paperwork should we keep on file?
Everything that shows the system is looked after: reports, certificates, pictures and your own cleaning or check logs. A single log for each site works best.
What does TR19 mean?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping and expects a risk-based approach.
How often should grease filters be changed?
That depends on the cooking. Kitchens that fry and grill all day need changes more often than kitchens that cook less. We agree the interval with you.
Where do the greasy filters go?
Yes. The dirty filters are taken away for cleaning and the clean set stays in the canopy.
What if some of our filters are damaged?
Damaged filters do not seat properly and let grease through. We flag any we find so they can be replaced.
Aftercare tips
A little care between visits keeps the system in better shape. Our advice:
- Make sure we can reach the canopy on exchange day
- Keep filter exchange and TR19 cleaning on the same plan
- Don’t refit a filter that is bent
- Keep every filter in place during service
Between visits, check that every filter is still in place. A missing filter leaves a gap for grease so tell us if you need a replacement.
Bent or missing filters let grease straight past. Replacing them early protects the plenum and ductwork.
Nearby places to Clapham
Other services in Clapham
Staff cleaning versus specialist work
Staff cleaning and specialist work aren’t 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. That part needs specialist access and equipment.
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.
How the visit works
Before we leave, we walk the area with whoever is on site. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. All told, the work takes less than an hour in most kitchens. Managed blocks in London often need contractors booked in ahead, and we are happy to deal with the agent directly for a site in Clapham.
- First, we check the canopies and the filters in them.
- We note any filters that are bent, damaged or missing.
- Greasy filters are swapped for clean ones.
- 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 where we can park and unload
- Let us know how we reach the system, including roofs, risers and plant rooms
- Tell us the best time to work, such as after service or at a weekend
Ask for a quote
Want a quote for grease filter exchange? Please phone us on 0345 646 2711 or email us and tell us about the site. We will talk you through the work and send you a fixed quote before anything is booked.