Greater London · Ductwork cleaning
Ductwork cleaning in Northwood, Greater London
Ductwork cleaning for Northwood, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Duct runs with no cleaning record
- A duct clean needed for an insurer
- Thick deposits at the bottom of a vertical duct
Managing agents and facilities teams in Northwood
Multi-site operators often want one contractor and one number. We work across London and the South East, so visits at different addresses can be planned together and kept on a regular cycle.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
Ductwork cleaning in Northwood, done properly
Grease in a duct is hidden, which is exactly why it’s dangerous. Flames pulled in from the cooking line can ignite it, carrying a fire along the duct and into rooms far from the kitchen. Cleaning the duct takes that fuel away. Common call-outs are for thick crusts of old grease along the duct and a rancid smell from the extract duct, across vertical risers, multi-storey ducts and horizontal duct runs.
London kitchens tend to trade late and open early, so work in Northwood 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.
We have 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 carry full insurance.
- Location
- Northwood (HA6)
- Wider area
- Greater London
- Records
- TR19® certificate and photo report
- Quote
- Fixed quote, normally within a working day
- When we work
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Fixed quotes for ductwork cleaning in Northwood
Every site gets its own quote. This is what makes a difference:
- The size of the system
- The number of sites or systems
- The condition of the system
- Any permits to work or inductions
Working hours, access and the scale of the site can all change the price. We take each of them into account and give you a fixed price before any work starts.
Helping us quote
Before you ask for a quote, gather:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- The times we could work without disrupting the site
- Detail shots of panels, filters and grilles
- Any symptoms, from odd noises to smells or leaks
To get a fixed quote, ring 0345 646 2711 or email us 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 typically come back within one working day.
Do you need ductwork cleaning in Northwood?
The further the air travels from the cooking, the cooler it gets. Cooling air drops its grease onto the inside of the duct, which is why ducts go on gathering grease well beyond the filters.
Look out for these warning signs:
- Proof of duct cleaning for the insurer
- Thick deposits at the bottom of a vertical duct
- A rancid smell from the extract duct
- Gaps where access panels were never fitted
Bursars and site managers at schools such as Frithwood Primary School tend to book extract cleaning for when the kitchen is empty.
Before booking anyone
- How areas they can’t reach will be recorded
- What paperwork you get at the end
- Whether the price is fixed
- If they look at the system before pricing
Places near Northwood
What else we do in Northwood
Questions from Northwood
Can you clean school kitchen extracts in Northwood during the holidays?
Yes, holiday work suits schools best. With about 24 schools and colleges on the FSA’s register within roughly a mile and a half of Northwood, it pays to plan holiday dates ahead. Send us your term dates when you call 0345 646 2711 or email us, and we’ll fit the work in.
How do you handle parking and loading in Northwood?
Parking and loading in London need planning, so tell us about bays, permits and building rules when you book. Much of our London work is done overnight, which helps.
Can you look after several sites?
Yes. Tell us the addresses and what each needs and you’ll get one fixed quote.
How do you know if the ductwork needs cleaning?
Drips, smells and weak extraction are clues, but measuring is the reliable way to know. A WFTT or DTT reading gives a clear answer.
Which kinds of sites do you work on?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, as well as food production and leisure sites.
Is there a survey before the work?
Yes. For many sites, photos and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
How long does it take to clean extract ducts?
It depends on the length of the duct, the number of access panels and how much grease there is. Typically it takes a few hours for a short run, longer for long runs and tall risers.
What if parts of the system can’t be reached?
We record them on the report, with a note of where it is, and we explain what access is needed, such as extra access panels in ductwork.
When something else is needed
We’d rather tell you now than book work that will not help, so here are the limits:
- A duct that’s too small or badly routed for the kitchen (a design issue)
- Sections that can’t be reached safely without new access (those are recorded, and panels can be fitted)
- A worn-out fan that needs replacing
Not sure which it is? You can phone us on 0345 646 2711 or send us an email and we will tell you honestly before booking.
Where we work
- Multi-storey ducts
- Bends and junctions
- Access panels
- Attenuators
- Horizontal duct runs
- Vertical risers
Between visits
Results last longer with the right care. We suggest:
- Report any grease dripping from duct joints
- Do not block access panels with shelving or stock
- Keep grease filters clean and fitted whenever you cook
- File each certificate and photo report in the maintenance log
You will have a recommended date for the next clean, worked out from the grease we found and how long you cook each day, in line with BESA guidance.
Run the extract the whole time the kitchen is cooking. When the air stops, grease settles in the duct, so switching off early adds to the build-up.
The process
We work around your opening hours, not the other way round. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the work takes a shift or more, depending on the length of the runs and the number of access points. Security desks and permits-to-work are routine in London, so let us know what your building in Northwood needs from us.
- First we diagnose: the route, the access and the grease levels.
- You get a fixed price before work starts.
- We clean section by section, working from panel to panel.
- Bends, risers and the base of each riser get extra attention.
- The duct is signed off with readings, photos and a next clean date.
Preparing for the visit
- Let us know how we reach the system, including roofs, risers and plant rooms
- Clear loose items from the work area
- Tell us where we can park and unload
How to get a quote
To help us quote: the address, the type of site and when it’s open, a few photos and any previous report or certificate. Once you have those, ring 0345 646 2711 or send us an email.
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How the job changes from site to site
Access panels
We can fit new access panels where the duct needs them, so the next clean reaches more of the system. The survey shows where they’re needed.
Horizontal duct runs
Flat runs of duct link the canopy to the riser or the outside wall. They collect grease as the air cools and slows, and we clean them section by section through access panels.
Kitchen extracts in Northwood
Look up Northwood on the FSA’s food hygiene register and you will find about 51 restaurants, cafés and canteens and about 26 takeaways in and around Northwood, up to about a mile and a half out. Behind every canopy among them is a run of ductwork that collects grease out of sight. Northwood sits within the area of 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.
Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Headstone Manor is about 3.3 miles south-east), access may need planning. A hall kitchen that only cooks for events, whether near Emmanuel Church or elsewhere in Northwood, still needs its extract cleaned, just less often.
Northwood is about 3 miles south-east of Rickmansworth, in Greater London. From the centre of Northwood to the outskirts, we cover ductwork cleaning for every kind of premises, from a single unit to a large public building. 764 places in Greater London are on our list, from busy centres to quieter spots. Our London page covers sites nearby (16 miles or so).
Work in HA6 is surveyed, quoted and booked the same way as anywhere else. We cover sites on Little Stream Close and Sandy Lodge Way and the roads around them. Neighbouring places we cover for ductwork cleaning include Eastbury (1 mile north-east), Moor Park (1 mile north-west), Batchworth Heath (1 mile west), Batchworth (2 miles north-west) and Holywell (2 miles north). Further out, we also cover City of Westminster (14 miles south-east), Marylebone (14 miles south-east), Kensington (12 miles south-east), St Pancras (14 miles south-east), Hampstead (11 miles south-east) and Ruislip (3 miles south).
Near you in Northwood
Typical jobs here are in premises near King George V Playing Fields, The Gate Public House and London School of Theology, among other places. Northwood’s nearest station is Carpenders Park station, roughly 1.7 miles north-east. Other landmarks nearby include Harlequin Centre (2.9 miles north-east) and Heath Robinson Museum (2.2 miles south-east). Not far away are Dews Farm Sand Pits and Tumbling Bay.