Greater London · Canopy and hood cleaning
Canopy and hood cleaning in Ashburton, Greater London
Canopy and hood cleaning for businesses, landlords and public buildings in Ashburton. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Grease channels that no longer drain
- A hood coated in old grease
- Smoke hanging around the canopy during service
Part by part
Plenums and filter housings
The rails and channels that hold the filters collect grease. We clean them so the filters sit tight and leave no gaps.
Pub and hotel kitchens
Few pubs and hotels can shut the kitchen for a day. Canopy cleans are done late at night or early in the morning so the kitchen keeps trading.
How we handle canopy cleaning in Ashburton
A greasy canopy tells an inspector a lot before they’ve opened anything. Under the surface, the plenum behind the filters is typically in a worse state. We clean both, so the canopy is clean where it shows and where it does not. If you’re dealing with a canopy flagged at an environmental health inspection and heavy deposits behind the grease filters, we can put it right.
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 Ashburton, that normally means a longer system to clean and more access panels to plan around.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Place
- Ashburton (CR0, SE25, CR9)
- Region
- Greater London
- Records
- Certificate plus before-and-after pictures
- Quotes
- Fixed quote, typically within a working day
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Ashburton questions
Can parking be tricky for a job in Ashburton?
London parking can be tight, so details of loading bays and permits help. If the building has a loading slot system, we’ll book into it.
Do you do school kitchen extract cleaning in Ashburton in the summer holidays?
Yes, and it’s the easiest time to do it. With about 20 schools and colleges on the FSA’s register within roughly a mile and a half of Ashburton, it pays to plan holiday dates ahead. Booking early in the term gives the best choice of holiday dates.
Does a canopy clean meet TR19?
Canopy cleaning is part of TR19, not the whole of it. Your report lists exactly what was cleaned so nobody mistakes it for a full system clean.
How much of the canopy do you clean?
All of it: the outer surfaces, the inner skin, the seams and the troughs. We also remove the filters and clean the plenum and housing behind them, since that is where grease hides.
Are you accredited?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
Do you have a 24/7 line?
Yes, day and night, every day of the year. Office hours are Monday to Friday, 8am to 6pm, with the emergency line covering every other hour.
What do you do to protect the area?
With sheeting and covers, before anything else happens. We keep the work contained and leave the area clean.
How long does canopy cleaning take?
Size and build-up decide it. As a guide, it takes an hour or two for one small canopy, longer where there are several.
Kitchen extracts in Ashburton
There are about 119 cafés, restaurants and staff canteens and about 113 sandwich bars and takeaways across Ashburton and its immediate surroundings (about a mile and a half), according to the Food Standards Agency’s register. Where they cook under a hood, the plenum behind the filters is where grease hides. Environmental health officers from Croydon council inspect food businesses in Ashburton. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Keeping each certificate and photo report on file helps show the extract is looked after. Most London extract cleaning happens at night, after the last service.
If you run a café or takeaway near Norwood Junction station, early starts and late finishes leave little time to clean, so overnight extract cleaning suits. A hall kitchen that only cooks for events, whether near Church of St Luke or elsewhere in Ashburton, still needs its extract cleaned, just less often.
Ashburton is about 6 miles south of New Cross, in Greater London. We carry out canopy cleaning for commercial premises of every kind in Ashburton and the rest of Greater London. Across Greater London, we cover 764 places, Ashburton among them. There’s also a page for London, about 8 miles away.
All of CR0, SE25 and CR9 is within our area for canopy cleaning, from busy streets to back roads. Whether your site is on Long Lane, Tudor Road and Coe Avenue or anywhere close by, we can help. We also cover the places around Ashburton: Woodside (1 mile north), Addiscombe (1 mile south), Shirley Oaks (1 mile south-east), Monks Orchard (1 mile south-east) and Shirley (1 mile south-east). Larger places within reach include London (8 miles north), City of Westminster (9 miles north-west), Marylebone (10 miles north), Kensington (10 miles north-west), St Pancras (10 miles north) and Shoreditch (10 miles north).
What’s near Ashburton
In Ashburton, that means kitchens and buildings near Oasis Academy Shirley Park, Ashburton Park and The Beehive pub and the streets around them. For rail, the closest station is Norwood Junction station, roughly 0.7 miles north-west. Nearby you’ll also find National Psychosis Unit (1.7 miles east) and Whitgift Centre (1.6 miles south-west). For a walk, there’s Duppas Hill and Bramley Bank.
When it’s something else
An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:
- Faulty canopy lights or wiring (a job for an electrician)
- A dirty extract fan further along the system
- Filters that no longer seal in the housing
If in doubt, phone us on 0345 646 2711 or send us an email and we’ll say what we think.
What we work on in Ashburton
- Baffle filters
- Island canopies
- Grease gutters
- Canopy light fittings
- Plenum chambers
- Wall canopies
Towns and villages near Ashburton
More services for Ashburton
What we do, step by step
When we arrive, we check the system against the survey or the pictures you sent. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes a few hours, depending on the size of the canopy and how much grease has built up. Many London buildings have a managing agent, a security desk or a permit-to-work system, so tell us who to contact in Ashburton.
- Diagnosis first: we look behind the filters as well as at the hood.
- Equipment is turned off and cooled, and the area under the canopy is protected.
- Heavy deposits come off by hand, then the surfaces are degreased.
- We finish the plenum, troughs and canopy and check them over.
- You get photos of the result and a recommended date for the next clean.
Before we arrive
- Tell us the best time to work, such as after service or at a weekend
- Dig out any earlier paperwork for the system
- Mention any sign-in, permit or induction we need
Getting a quote
We do not publish a price list, because every site is different. We look at your system first, from pictures or on a visit, and then give you a fixed quote. To start, ring 0345 646 2711 or use the quote form.
Advice
Fixed quotes for canopy cleaning in Ashburton
Sites vary more than people expect. The main factors:
- The number of sites or systems
- Working hours and out-of-hours timing
- Whether we need access equipment or extra panels
- Any permits to work or inductions
No two sites are the same, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all play a part.
Asking for a quote
When you contact us, these details help:
- Close-ups of filters, grilles, hatches or access panels
- Any symptoms, from odd noises to smells or leaks
- The paperwork from the last visit, if you have it
- Where the plant sits or the system leaves the building, such as a roof or outside wall
Some systems can be priced from pictures; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before work begins.
Looking after it afterwards
How long the results last depends on use and care. Here’s what we suggest:
- Flag any change in how the canopy behaves
- Leave the extract running until cooking stops
- Refit filters the right way round and fully seated
- Wash or exchange the filters on a regular cycle
File the report alongside your fire risk assessment where an inspector can see it. Photos of a clean canopy and plenum make the record easy to follow.
Tell us if the canopy starts dripping or the filters clog sooner than usual. More drips or quicker clogging often mean the cleaning interval needs looking at, which a grease thickness test can confirm.
Common problems we fix in Ashburton
Most canopies have troughs or channels that catch running grease. Left to fill up, they spill over, so fat ends up running down the front of the hood.
Common reasons sites call us are:
- Poor capture at the hood
- Grease dripping from the canopy edge
- Greasy streaks across the canopy
- Wet, greasy drips from the hood
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; National Psychosis Unit is the nearest hospital to Ashburton, about 1.7 miles east.
Before you book anyone
- Whether the quote is based on a survey or photos
- When they can work, and whether that is outside your opening hours
- What’s included in the scope, part by part
- Proof of insurance
For landlords and multi-site operators
Multi-site operators often want one contractor and one number. We work across London and the South East, so a run of sites can go into one programme and kept on a regular cycle.
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements and we’ll come back with a fixed quote.