Greater London · Ductwork cleaning
Ductwork cleaning in Harlesden, Greater London
Need ductwork cleaning in Harlesden? We diagnose first, fix the price and book the work around your hours, then sign off with a report and photos.
- A duct nobody has opened in years
- A rancid smell from the extract duct
- Duct runs that cannot be reached
Ductwork cleaning in Harlesden, done properly
Duct Doctor has cleaned kitchen extract ductwork since 2009, working across London and the South East. As a BESCA Vent Hygiene Elite member, our duct cleaning is done to BESA TR19® Grease, and our certificates are issued through the BESCA Vent Hygiene Elite portal. The work covers horizontal duct runs, multi-storey ducts and access panels, and people most often call us about sections of duct with no access panels and grease pooling at the foot of the riser.
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. For a kitchen in Harlesden, that usually means a longer system to clean and more access panels to plan around.
The paperwork matters as much as the work. Each visit is written up with photos, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Place
- Harlesden (NW10, W3, NW26)
- Wider area
- Greater London
- Paperwork
- TR19® certificate and photo report
- Quotes
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Why it’s worth doing now in Harlesden
Old grease in a duct for a kitchen in Harlesden doesn’t stay soft. It bakes into a hard layer that takes far longer to remove, which makes each delayed clean a bigger one. London sites work long hours, and the longer a job is left, the bigger it gets.
One small site or a whole estate, we price it on the same basis: the work involved, the access and the timing. The price is fixed before work begins.
Why us?
- We diagnose before we treat
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Fully insured
- Photo reports with every job
Take a look at our cost guide or how to check a contractor.
Harlesden: your questions answered
Do you do school kitchen extract cleaning in Harlesden in the summer holidays?
Yes. The holidays are the usual time for school work. Food Standards Agency records list about 45 schools, colleges and universities with registered kitchens within about a mile and a half of Harlesden. Just ring 0345 646 2711 or drop us a line with your term dates and we will plan around them.
Which fire service covers Harlesden?
Fire safety enforcement in Harlesden is handled by London Fire Brigade. It’s worth keeping your fire risk assessment, TR19® certificates and photo reports together, ready to show.
Do we have to stop cooking while the ducts are cleaned?
We clean while the kitchen is closed, evenings, overnight or at weekends. Equipment and the extract are switched off while we work.
How do you keep the site clean during the work?
We cover floors and nearby surfaces with sheeting before work begins, and anything we remove is contained. Before we leave, we tidy up and clean down.
What does ductwork cleaning cost?
We do not publish prices, because the cost depends on the job: how big it is, what state it’s in, how we reach it and the working hours. You get a fixed price before we start.
What about areas you can’t get to?
Anything we can’t reach goes on the report, with a note of where it is, and we tell you what would make it reachable, such as extra access panels in ductwork.
Is a quote from photos possible?
In many cases, yes. Photos of the system and the access, plus your opening hours and last report, are often enough. Where we cannot see enough, we arrange a survey.
Do you look at the system first?
Yes, always. We diagnose before we treat: the survey tells us what the system needs and how to reach it, and the quote is based on that.
Also near Harlesden
More services for Harlesden
Grease, kitchens and Harlesden
Food Standards Agency records list about 269 cafés, restaurants and staff canteens and about 168 takeaways within roughly a mile and a half of the centre of Harlesden. Where they cook under a canopy, grease does not stop at the filters: it settles along the duct and up the riser. London jobs usually start after the last service, with loading and roof access agreed with the building first. Harlesden 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.
Commuter trade near Willesden Junction station can mean long cooking hours, and long hours put a kitchen into BESA’s more frequent cleaning bands. For schools such as John Keble CofE Primary School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed.
Harlesden is about 4 miles west of City of Westminster, in Greater London. Sites in Harlesden get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with pictures. Across Greater London, we cover 764 places, Harlesden among them. We also work in London, about 7 miles from Harlesden.
Every address in NW10, W3 and NW26 is within our area for ductwork cleaning, from busy streets to back roads. Ductwork cleaning is available to premises on Fry Road, Wood Road and Park Road and nearby roads. Neighbouring places we cover for ductwork cleaning include College Park (1 mile south-east), Old Oak Common (1 mile south), Church End (1 mile north), Stonebridge (1 mile north-west) and Willesden Green (1 mile north-east). Further out, we also cover London (7 miles east), City of Westminster (4 miles east), Marylebone (5 miles east), Kensington (3 miles south-east), St Pancras (6 miles east) and Shoreditch (7 miles east).
Around Harlesden
We work in commercial kitchens and buildings around St Claudine's Catholic School for Girls, Royal Oak Inn and Roundwood Park. Harlesden has its own railway station: Willesden Junction station. A little further out are Central Middlesex Hospital (1 mile west) and Brent Museum and Archives (1.1 miles north-east). Not far away are Castlebar Hill and The Long Water.
What we do, step by step
We start by comparing what we find with the survey or your photos. If anything is different, we talk it through with the person on site before carrying on. From there, it takes from a few hours to more than one visit, depending on duct length and access. If your building in Harlesden has sign-in rules, permits or key holders, mention them when you book.
- The duct route is surveyed and every access point found.
- We take grease readings along the route.
- Out of hours, the area is protected and the access panels opened.
- Thick grease is scraped out, then the runs and risers are degreased.
- Panels are closed, readings and photos repeated, and unreachable sections recorded.
Before we arrive
- Tell us about site rules, permits or sign-in
- Agree a time when the area can be out of use
- Clear the space around the work
Getting a quote
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, you get a fixed price before any work starts.
Read more
What a clean won’t put right
Not every problem is solved by ductwork cleaning, and we will tell you before any work starts. It doesn’t solve:
- A failed fan motor at the end of the duct (a fan repair job)
- Duct sealed behind fixed ceilings or walls
- Ductwork that was poorly designed
Not sure which it is? You can phone us on 0345 646 2711 or drop us a line and we’ll tell you honestly before booking.
Parts of the system we cover
- Vertical risers
- Access panels
- Attenuators
- Bends and junctions
- Horizontal duct runs
- Multi-storey ducts
How we price ductwork cleaning
Every site gets its own quote. These are the things that affect it:
- The condition we find in the survey
- Whether it’s a one-off visit or part of a schedule
- The times the site is available
- Where the site is and how we reach it
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’ll explain each part.
What to send for a quote
When you contact us, it’s useful to have:
- Your opening hours and when the area is out of use
- Any previous report or certificate
- The roof, plant room or outside wall the system runs to
- Close-ups of filters, grilles, hatches or access panels
There’s no standard price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To start, call us on 0345 646 2711, or email photos.
How the job changes from site to site
Vertical risers
Risers are cleaned through panels at different levels. Any part that cannot be safely reached is recorded.
Multi-storey and shared buildings
A duct that climbs several floors may be cleaned over more than one visit. Visits are planned around the building’s hours, out of hours where possible.
Do you need ductwork cleaning in Harlesden?
Many ducts don’t have enough access panels. Sections between panels go uncleaned, sometimes since the system was installed, and grease there keeps thickening unseen.
Look out for any of the following:
- An insurer asking for TR19 evidence
- Grease pooling at the foot of the riser
- A rancid smell from the extract duct
- Hardened, baked-on grease in long horizontal runs
A hall kitchen that only cooks for events, whether near Church of All Souls or elsewhere in Harlesden, still needs its extract cleaned, just less often.
Before you book anyone
- What happens if part of the system cannot be accessed
- Whether they’re fully insured
- Whether the work can be done while the site is closed
- Whether the price is fixed
Aftercare tips
Think of this as the after-treatment advice, short and simple:
- Flag drips from the duct right away
- Ask for a grease thickness test if the kitchen gets busier
- Do not block access panels with shelving or stock
- Book the next clean before the recommended date
Every panel we open is refitted when we finish, and the surrounding area is left clean. Waste grease and water are taken away.
Grease that never reaches the duct never needs cleaning out of it. Clean, properly seated filters are the duct’s best protection.