Greater London · Ductwork cleaning
Cannon Hill ductwork cleaning
Cleaning of kitchen extract ductwork, horizontal runs and vertical risers through access panels in Cannon Hill, surveyed first and signed off with a written report and pictures. Call for a fixed quote.
- Thick deposits at the bottom of a vertical duct
- Gaps where access panels were never fitted
- A grease test showing the duct is overdue
For landlords and multi-site operators
Running several sites is easier with one contractor. We work across London and the South East, so visits at different addresses can be planned together and kept to a regular schedule.
We regularly work with managing agents. Send the address, what’s needed and how access works, and we’ll send a fixed quote.
Ductwork cleaning in Cannon Hill
The ductwork is where an extract clean is won or lost. Sections with no way in can go uncleaned for years. We open up every reachable section and record any we cannot reach, so you know exactly where you stand. The work covers multi-storey ducts, access panels and attenuators, and common reasons people get in touch are grease leaking from duct joints and hardened, baked-on grease in long horizontal runs.
London kitchens tend to trade late and open early, so extract cleaning in Cannon Hill is typically 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’ve been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Where
- Cannon Hill (SW20, SM4, KT3)
- Region
- Greater London
- Paperwork
- Certificate plus before-and-after pictures
- Quotes
- A fixed quote up front
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
Places near Cannon Hill
What else we do in Cannon Hill
How the visit works
The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. The work on site takes from a few hours to more than one visit, depending on duct length and access, and we clear up before we go. We fit London jobs around the building rather than the other way round, so a visit in Cannon Hill is normally out of hours.
- We start by working out how the duct runs and where it can be opened.
- Grease readings are taken at set points along the duct.
- Through the access panels, thick grease is removed by hand first.
- Next the ducts and risers are degreased, using whatever suits the deposit.
- Readings and photos are repeated and any section we couldn’t reach is recorded.
Preparing for the visit
- Agree a time when the area can be out of use
- Clear the space around the work
- Let us know about parking and loading
Ask for a quote
Every quote begins with a look at the system, either from pictures and details you send or from a site visit. Then we send a fixed price so you know the cost before any work starts.
Related advice
Why act early in Cannon Hill
There’s no law that names TR19. The Fire Safety Order 2005 makes the responsible person assess and reduce fire risk, including the grease inside the extract ductwork. In a London building, a problem in a duct, damper or fan rarely stays in one unit.
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will explain each part.
What you get with us
- Photo reports with every job
- One number for every site across the South East and London
- We’re fully insured
- Evenings, overnight and weekends, plus 24/7 emergency callout
Take a look at our cost guide or our accreditations and certificates.
Part by part
Bends and transitions
The join where the canopy meets the duct is a common hotspot. We reach it from the plenum side where possible.
Attenuators and discharge
Near the discharge, the air has cooled the most, so it can collect more grease than expected. We include it in the clean and the readings.
Honest limits
Some problems need a different service or another trade:
- An extract fan that has stopped working
- Ductwork that’s corroded, split or holed (that needs a ductwork contractor)
- Ductwork that was poorly designed
If in doubt, call 0345 646 2711 or use the quote form and we’ll say what we think before booking.
Where we work
- Vertical risers
- Horizontal duct runs
- Attenuators
- Bends and junctions
- Access panels
- Multi-storey ducts
Ductwork cleaning around Cannon Hill
The FSA’s data shows about 27 pubs and bars and about 4 hotels and guest houses registered across Cannon Hill and its immediate surroundings (about a mile and a half). Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. The fire and rescue service for Cannon Hill is London Fire Brigade. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. Overnight is the normal time to clean a London kitchen extract, so trading is not affected.
Where a hall near St James Merton, or anywhere in Cannon Hill, hosts lunch clubs or events, its extract gathers grease just as a café’s does. A kitchen near South Merton station that serves breakfast and dinner can run its extract twelve hours or more, which shortens the cleaning interval. Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; St. Anthony's Hospital is the nearest hospital to Cannon Hill, about 1.5 miles south.
Cannon Hill is about 1 mile north-west of Morden, in Greater London. Whether your site is in the middle of Cannon Hill or further out, ductwork cleaning is available to all kinds of commercial premises, from a single unit to a large public building. Cannon Hill is one of 764 places in Greater London we cover for ductwork cleaning. We also work in London, about 9 miles from Cannon Hill.
Here we cover the SW20, SM4 and KT3 postcode area for ductwork cleaning. You’ll find streets such as Aylward Road, Camborne Road and Botsford Road, all of which we cover for ductwork cleaning. Neighbouring places we cover for ductwork cleaning include Bushey Mead (1 mile north-west), Raynes Park (1 mile west), Wimbledon Chase (1 mile north), West Barnes (1 mile west) and Merton Park (1 mile north-east). Within a short drive, we also cover London (9 miles north-east), City of Westminster (8 miles north), Marylebone (9 miles north), Kensington (7 miles north), St Pancras (10 miles north-east) and Shoreditch (11 miles north-east).
Landmarks near Cannon Hill
Around Cannon Hill, our work takes us to kitchens and buildings near The Edward Rayne pub, Cannon Hill Common and Harris Academy Wimbledon and the streets around them. The closest station to Cannon Hill is South Merton station, roughly 0.5 miles north-east. Nearby you’ll also find St. Anthony's Hospital (1.5 miles south) and Wimbledon Museum (1.6 miles north). Open spaces near Cannon Hill include Cherry Wood and Henman Hill.
What affects the cost of ductwork cleaning
We quote each job individually. This is what makes a difference:
- Access, including roofs, risers and ceiling voids
- The size of the system
- The condition we find in the survey
- Site rules, permits and inductions
No two sites are the same, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Asking for a quote
When you call or email, these details help:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- The roof, plant room or outside wall the system runs to
- The times we could work without disrupting the site
- Wide photos of the system and the area around it
For a fixed quote, call 0345 646 2711, or email photos and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. We normally come back within one working day.
Staff cleaning versus specialist work
Logging matters as much as cleaning. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, next to our reports.
If your staff spot something 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.
Questions from Cannon Hill
Can you work in Cannon Hill outside opening hours?
Yes, nights and weekends are routine for us. The work in Cannon Hill can fit around your hours. Just ring 0345 646 2711 or send us an email with your opening times and we will plan around them.
Can school kitchens in Cannon Hill be cleaned in the holidays?
Yes, and it’s the easiest time to do it. There are about 34 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Cannon Hill. Tell us your holiday dates and we’ll book the visit for when the site is empty.
What happens if there are not enough access panels?
Sections out of reach are written down on the report, in line with TR19. New panels can be fitted to reach them in future.
Which accreditations do you hold?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We’re fully insured and have been trading since 2009.
What shows that the ducts need a clean?
Start with the date of the last clean. If it’s overdue, or there isn’t one, a clean is due, and grease readings will confirm how urgent it is.
Will I get a report after the ducts are cleaned?
A photo report, with readings and before and after photos, plus a TR19 certificate for a full system clean. It also gives a recommended next clean date.
Who is responsible for fire safety on the premises?
Under the Regulatory Reform (Fire Safety) Order 2005, it’s the responsible person: normally the employer or whoever controls the premises. In shared or managed buildings, a landlord, facilities manager or managing agent can share the duty.
What do you do to protect the area?
Floors and surfaces near the work are sheeted before any work starts, and waste is contained as we go. At the end, the area is cleaned down.