Greater London · Ductwork cleaning
South Harrow ductwork cleaning
Ductwork cleaning for South Harrow and the surrounding area: diagnosis first, then a fixed quote, the work and a report with photos. Call for a fixed quote.
- Duct runs with no cleaning record
- A duct clean needed for an insurer
- Smells of old cooking grease from the ductwork
Ductwork cleaning in South Harrow
Not sure when the ductwork was last cleaned? Tell us about the system when you ring 0345 646 2711 or use the quote form, and we’ll give you a fixed quote for ductwork cleaning, normally within one working day. If you have a rancid smell from the extract duct and duct runs that can’t be reached, we can put it right, from bends and junctions, multi-storey ducts and vertical risers onwards.
London kitchens tend to trade late and open early, so extract cleaning in South Harrow is typically done overnight, after the last service. Before the clean, we agree loading, parking and roof access with whoever manages the building.
Think of the report as the system’s health record: a dated account with pictures of everything we did. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal, ready for your insurer.
- Location
- South Harrow (HA2, HA1, UB5)
- Wider area
- Greater London
- Paperwork
- TR19® certificate and photo report
- Quotes
- A fixed price before we start
- When we work
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
What staff can safely do
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but they don’t reach the grease that builds up further in. That part needs specialist access and equipment.
Staff cleaning does not replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.
Aftercare tips
A little care between visits keeps the system in better shape. We recommend:
- Run the extract fan throughout service
- Keep to the interval on the report
- Get panels fitted where the duct couldn’t be cleaned
- Tell us if grease leaks from the ductwork
You will have a recommended date for the next clean, based on the readings and your daily cooking hours, in line with BESA guidance.
Book the next duct clean before the date passes. If the kitchen starts cooking longer hours, the interval may need to shorten, and grease thickness testing will show it.
Common problems we fix in South Harrow
Air cools as it moves away from the canopy. As it cools, the grease it carries condenses onto the duct walls, so duct runs keep collecting grease long after the canopy.
Keep an eye out for these warning signs:
- Smells of old cooking grease from the ductwork
- Sections of duct with no access panels
- Fat dripping from the ductwork
- A duct clean needed for an insurer
If you run catering at a healthcare site, such as a hospital like Clementine Churchill Hospital about 0.9 miles east, the extract may need cleaning more often than a part-time kitchen.
Comparing quotes
- What records you will receive afterwards
- When the next visit should be, and why
- Whether the price is fixed
- Exactly which parts of the system are covered
How it works
There’s very little for your team to do on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Afterwards, the area is left tidy and the written report follows. Loading bays, visitor permits and roof access are the first things we ask about for a site in South Harrow.
- We start by working out how the duct runs and where it can be opened.
- We measure grease thickness at set points before cleaning.
- Access panels are opened and heavy deposits scraped out by hand.
- The duct is degreased with the method that suits the grease, from degreasers to hot water or steam.
- We test again, take pictures and note any part that couldn’t be reached.
Before we arrive
- Let us know how we reach the system, including roofs, risers and plant rooms
- Tell us where we can park and unload
- Let us know when the site is closed or quiet
Ask for a quote
We do not publish a price list, because every site is different. We look at your system first, from photos or on a visit, then send a fixed quote. To get going, give us a ring on 0345 646 2711 or drop us a line.
Advice
Nearby places to South Harrow
Other services in South Harrow
Fixed quotes for ductwork cleaning in South Harrow
The survey tells us what the work involves. We look at:
- Whether it’s a one-off visit or part of a schedule
- Travel, parking and unloading
- The scale of the work
- Site rules, permits and inductions
What you pay depends on how big the system is, what state it’s in and access to every part of it. We give you a fixed price before we start, so you know where you stand.
Asking for a quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- How we’d reach plant on a roof or in a plant room
- Where the site is and what kind of site it is
- When the site is open and when it’s quiet
Here’s what helps us quote: the address, the type of site and when it’s open, pictures of the system and the last certificate or report, if there is one. Once you have those, give us a ring on 0345 646 2711 or drop us a line.
Honest limits
A few issues sit outside what this work can do:
- Fire dampers that don’t close (they need testing and remedials)
- Ductwork that was poorly designed
- A worn-out fan that needs replacing
Not sure which it is? You can ring 0345 646 2711 or use the quote form and we’ll tell you honestly.
Where we work
- Horizontal duct runs
- Access panels
- Bends and junctions
- Multi-storey ducts
- Attenuators
- Vertical risers
South Harrow kitchens: local notes
The Food Standards Agency lists about 30 bars, pubs and nightclubs and about 4 hotels, B&Bs and guest houses as registered food businesses within about 1.5 miles of central South Harrow. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Kitchens in South Harrow get their food hygiene inspections from Harrow council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Our report lists what was cleaned and when, which is useful to have ready. In London, kitchens are usually cleaned overnight, when the kitchen is closed and loading is easier.
Bursars and site managers at schools such as The Welldon Park Academy tend to book extract cleaning for when the kitchen is empty. Commuter trade near Northolt Park station can mean long cooking hours, and long hours put a kitchen into BESA’s more frequent cleaning bands.
South Harrow is about 1 mile south of Harrow, in Greater London. South Harrow gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with photos. South Harrow is one of 764 towns, villages and districts in Greater London we cover for ductwork cleaning. There’s also a page for London, about 12 miles away.
Work in HA2, HA1 and UB5 is surveyed, quoted and booked the same way as anywhere else. Whether your site is on Park Lane, Grange Road and Dudley Road or anywhere close by, we can help. We also cover Roxeth (1 mile north-east), Harrow (1 mile north), Harrow on the Hill (1 mile east), Rayners Lane (1 mile north-west) and Northolt (1 mile south-west). Larger places within reach include London (12 miles east), City of Westminster (9 miles east), Marylebone (9 miles east), Kensington (8 miles south-east), St Pancras (10 miles east) and Shoreditch (12 miles east).
Landmarks near South Harrow
Typical jobs here are in premises near Orley Farm School, Northwick Park and St Dominic's Sixth Form College and the streets around them. South Harrow’s nearest station is Northolt Park station, about 0.5 miles south-west. A little further out are St. George's Shopping Centre (1.3 miles north-east) and Kodak Museum (2 miles north). The countryside around South Harrow includes Middle Lake and Northala Fields.
Questions from South Harrow
Who enforces fire safety at workplaces in South Harrow?
It’s London Fire Brigade, which covers South Harrow. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
Do you clean school canteen extracts around South Harrow out of term?
Yes, and it’s the easiest time to do it. There are about 21 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of South Harrow. Tell us your holiday dates and we will book the visit for when the site is empty.
Do I get a certificate for ductwork cleaning?
You get a photo report with before and after photos, plus a TR19 certificate when the whole system is cleaned. Keep both in the maintenance log.
Do you survey before quoting?
Yes. For many sites, pictures and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
How can I tell if my extract ducts are dirty?
Signs include grease dripping from joints, smells and a fan working harder, but measuring is the reliable way to know. A WFTT or DTT reading gives a clear answer.
Which accreditations do you hold?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
Can you come out in an emergency?
Yes. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we will advise on what to do next.
Will the duct clean disrupt the kitchen?
We clean while the kitchen is closed, evenings, overnight or at weekends. The extract and cooking equipment need to be off.
What happens if it’s left?
A dirty duct is something insurers ask about. Many policies require TR19 cleaning, and a claim may be refused or reduced without evidence. A certificate that covers the ductwork is what they want to see. In South Harrow, as across London, ductwork often passes through shared risers and other people’s space.
We do not list prices on the website, because each job is priced on what it involves. Call for a fixed quote, and we’ll explain what it covers.
What you get with us
- A written report with photos after every visit
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Survey first, then a fixed quote
- Full insurance on every job
Take a look at our cost guide and how to check a contractor.