Greater London · Canopy and hood cleaning
Canopy Cleaning in Crooked Billet
Canopy cleaning across Crooked Billet and nearby, timed so the site keeps working and finished with a written report and pictures.
- Filters that clog soon after cleaning
- Overflowing grease troughs and gutters
- Heavy deposits behind the grease filters
Why it’s worth doing now in Crooked Billet
If the canopy waits for the next full clean, grease keeps adding up. Some kitchens need the canopy cleaning more often than the whole system, and readings or a look behind the filters will show it. Shared walls, risers and roofs mean a problem at one London site seldom stays put.
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered and we’ll price it together.
Why choose Duct Doctor in Crooked Billet
- Survey first, then a fixed quote
- CHAS and SafeContractor accredited, with ISO 9001
- One number for every site across the South East and London
- Photo reports with every job
Canopy cleaning for kitchens and businesses in Crooked Billet
Duct Doctor has cleaned canopies and hoods since 2009. As a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, we treat the canopy as one part of a whole system, and we are fully insured, with CHAS, SafeContractor and ISO 9001. If you have smoke hanging around the canopy during service and overflowing grease troughs and gutters, we can put it right.
Across London, many commercial kitchens are squeezed into basements and narrow back-of-house spaces, and the duct may run up through several floors before it discharges at the roof. In Crooked Billet, as elsewhere in the capital, a long duct run means more access points to open and more grease to remove.
The paperwork matters as much as the work. You get a written report with pictures after each visit, listing what was done, anything we couldn’t reach and when the next visit is due. File it in your maintenance log so it’s to hand when an insurer or inspector asks.
- Location
- Crooked Billet (SW19, SW20)
- Wider area
- Greater London
- Reporting
- Certificate plus before-and-after photos
- Price
- Fixed quote, normally within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
How the visit works
The visit has three parts: set-up, the treatment itself and the sign-off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with pictures. The middle part takes longest, which takes a few hours for most canopies. Security desks and permits-to-work are routine in London, so let us know what your building in Crooked Billet needs from us.
- We start by checking the canopy, filters and plenum.
- The range is turned off and allowed to cool before we cover it.
- We remove the grease filters and clean the plenum and filter housing.
- Inside and out, the canopy and its grease channels are degreased.
- We refit the filters, clear up and photograph the finished canopy.
Before we arrive
- Clear the space around the work
- Tell us about site rules, permits or sign-in
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
Ask for a quote
Getting a quote doesn’t take long. Send a few details and pictures, and we typically reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Read more
Common problems we fix in Crooked Billet
Grease that runs down the inside of a canopy gathers in its gutters and troughs. If they’re not emptied, they fill and overflow, and grease ends up dripping from the canopy edge.
These are the problems we see most often:
- A canopy that no longer draws the smoke away
- Grease dripping from the canopy edge
- A hood coated in old grease
- Grease filters blocking between washes
If you run a café or takeaway near Raynes Park station, early starts and late finishes leave little time to clean, so overnight extract cleaning suits.
Comparing quotes
- Which accreditations they hold, and whether you can check them
- What’s included in the scope, part by part
- Whether they recommend a next date
- Whether they’re fully insured
Places near Crooked Billet
More services for Crooked Billet
In-house cleaning or a specialist?
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.
Kitchen extracts in Crooked Billet
The Food Standards Agency lists about 32 bars, pubs and nightclubs and about 6 hotels and guest houses as registered food businesses within about 1.5 miles of central Crooked Billet. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. In London, kitchens are typically cleaned overnight, when the kitchen is closed and loading is easier. Food hygiene inspections in Crooked Billet are the job of Merton council’s environmental health team. Extraction counts as kitchen equipment, so its condition can come up on the day. Before-and-after photos from each clean are a simple way to show the extract is in hand.
If you run catering at a healthcare site, such as a hospital like Atkinson Morley Hospital about 0.5 miles south-west, the extract may need cleaning more often than a part-time kitchen. Volunteers running a hall kitchen near Christ Church, or anywhere in Crooked Billet, may not know when the extract was last cleaned, and a grease test settles it.
Crooked Billet is about 1 mile west of Wimbledon, in Greater London. We provide canopy cleaning for businesses, landlords and public buildings in Crooked Billet and the rest of Greater London. Our area takes in 764 places across Greater London, large and small. For sites nearby, see our London page (8 miles or so).
Work in SW19 and SW20 follows the same survey, fixed quote and written report as everywhere else we cover. That includes premises on Camp Road, Mckay Road and Pepys Road and nearby roads. Neighbouring places we cover for canopy cleaning include Copse Hill (1 mile south-west), Wimbledon (1 mile east), Bushey Mead (1 mile south), Wimbledon Chase (1 mile south-east) and Kingston Vale (1 mile north-west). Further out, we also cover London (8 miles north-east), City of Westminster (7 miles north-east), Marylebone (8 miles north-east), Kensington (6 miles north), St Pancras (9 miles north-east) and Shoreditch (10 miles north-east).
Around Crooked Billet
We work in commercial kitchens and buildings around Hollymount School, Cannizaro Park and Ursuline Preparatory School. Crooked Billet’s nearest station is Raynes Park station, roughly 0.9 miles south of the centre. Other landmarks nearby include Southside Wandsworth (2.7 miles north-east) and Wimbledon Museum (0.5 miles east). The countryside around Crooked Billet includes Kew Gardens Lake and Henman Hill.
What affects the cost of canopy cleaning
Some jobs are bigger than they look, and some smaller. The main factors:
- How many systems or sites are involved
- Whether it’s a one-off visit or part of a schedule
- The condition of the system
- Working hours and out-of-hours timing
One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. The price is fixed before work begins.
Asking for a quote
When you contact us, these details help:
- Close-ups of filters, grilles, hatches or access panels
- Any previous report or certificate
- The times we could work without disrupting the site
- Wide photos of the system and the area around it
Some systems can be priced from photos; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
Looking after it afterwards
A little care between visits keeps the system in better shape. Our advice:
- Flag any change in how the canopy behaves
- Keep filters on a set cleaning routine
- Empty the grease troughs before they fill
- Give the canopy a wipe after service
A before and after photo report follows the clean. The report lists what was cleaned and any part we couldn’t get to, so the record is honest and complete.
Wipe the canopy surfaces at the end of each day. It does not reach the plenum, but it stops the outside building up.
Common questions in Crooked Billet
Can the work in Crooked Billet be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. Your customers, staff or residents in Crooked Billet needn’t be disturbed. Just call 0345 646 2711, or email photos with your opening times and we will plan around them.
Can you clean school kitchen extracts in Crooked Billet during the holidays?
Yes, and it’s the easiest time to do it. Around Crooked Billet, the Food Standards Agency lists about 28 schools and colleges with registered kitchens within a mile and a half or so. You can ring 0345 646 2711 or use the quote form with the dates the site is empty.
What information do you need?
Only a few details: the address, the site type, your opening hours and how we reach the system. Photos and the last report help too. Then call us on 0345 646 2711, or send details by email.
Why is my canopy dripping grease?
Grease that builds up inside the canopy has to go somewhere. Once the troughs and plenum are full, it runs down and drips, often mixed with condensation. A thorough clean stops it.
Are the filters cleaned too?
The filters come out so the plenum behind them can be cleaned, and they’re cleaned before going back in. Any that are damaged are noted on the report.
Are you accredited?
We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
Who is responsible for fire safety on the premises?
In the words of the Fire Safety Order 2005, it’s the responsible person. It’s normally the employer, or whoever controls the building, and in shared buildings more than one person can have duties. Your lease and fire risk assessment should make it clear.
Which canopies and hoods do you clean?
We clean canopies in commercial kitchens of every kind. Whatever is cooked under it, the canopy is cleaned the same thorough way, with the equipment off and cool.
What canopy cleaning can’t fix
Some problems need a different service or another trade:
- Grease in the duct runs and risers behind the canopy
- A fan that can’t pull enough air because it’s worn out
- Filters that no longer seal in the housing
If you are not sure, just ring 0345 646 2711, or send details by email and we’ll give you a straight answer before you book.
What we work on in Crooked Billet
- Island canopies
- Grease gutters
- Plenum chambers
- Baffle filters
- Canopy light fittings
- Wall canopies