Greater London · Canopy and hood cleaning
Canopy Cleaning in North Harrow
Canopy cleaning in North Harrow from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Condensation and grease dripping together
- Smoke hanging around the canopy during service
- Grease filters blocking between washes
Canopy cleaning in North Harrow
A kitchen team can wipe the outside of a canopy, but the seams, gutters and inner skin need more. Thick deposits are scraped off by hand, then the surfaces degreased to suit what’s there, using hot water or steam where it helps. The work covers island canopies, baffle filters and wall canopies, and the jobs we see most are wet, greasy drips from the hood and a greasy hood noticed by an inspector.
London kitchens tend to trade late and open early, so extract cleaning in North Harrow is usually 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: dated, with photos, and showing what was done. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal and sits alongside the report.
- Where
- North Harrow (HA2, HA1, HA5)
- Wider area
- Greater London
- Records
- Certificate plus before-and-after photos
- Quote
- A fixed quote up front
- Working hours
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
How it works
We start by comparing what we find with the survey or your photos. Anything unexpected is raised with you before we go further. After that, the work takes a few hours for most canopies. If your building in North Harrow has sign-in rules, permits or key holders, mention them when you book.
- We look at the canopy, filters and troughs first.
- Out of hours, the range is switched off, cooled and covered.
- With the filters removed, the plenum and filter channels are cleaned.
- The canopy shell, seams, troughs and gutters are degreased inside and out.
- Filters are refitted, the area cleaned down and the photo report put together.
How to prepare
- Find the previous report, if there is one
- Let us know when the site is closed or quiet
- Tell us where we can park and unload
Ask for a quote
We don’t publish a price list, because no two systems are the same. We look at your system first, from photos or on a visit, then send a fixed quote. To get going, phone us on 0345 646 2711, or send details by email.
Advice
Different parts, different methods
Plenums and filter housings
Behind neglected filters, the plenum can be heavily coated. We remove thick grease by hand, then degrease.
Island canopies
Everything about an island canopy is on show, so the finish matters. We degrease it thoroughly and photograph the result.
Why deal with it now?
Getting the canopy cleaned in North Harrow now saves a bigger job later. The work takes part of a shift for most kitchens, more where there are several canopies or heavy deposits, done while the kitchen is closed. Left alone, grease keeps moving into the plenum and duct. London buildings are shared, so a fire or failure in one system can reach the neighbours above and beside you.
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 any work starts.
Why choose Duct Doctor in North Harrow
- Fully insured
- A fixed price before any work starts
- Out-of-hours work and a 24/7 emergency line
- Trading since 2009
See our cost guide and how to check a contractor.
How we price canopy cleaning
The quote reflects the site in front of us. We take into account:
- How many systems or sites are involved
- How easy every part is to reach
- A single visit or a regular plan
- The times the site is available
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered, and you’ll get one fixed quote.
Asking for a quote
Many jobs can be priced from photos and some basics. Useful things to send:
- Close-ups of filters, grilles, hatches or access panels
- How we’d reach plant on a roof or in a plant room
- The site address and the type of premises
- A few general shots of the system
For canopy cleaning in North Harrow, call 0345 646 2711 or use the quote form. Tell us what kind of premises it is and when it’s open, and send pictures or your last report if you can. A fixed quote typically follows within one working day.
What canopy cleaning can’t fix
Canopy cleaning cannot fix everything, and we’d rather say so up front. It won’t put right:
- A light fitting that does not work
- Weak extraction caused by a failing fan motor
- A hood that doesn’t cover the cooking line
If in doubt, call 0345 646 2711 or drop us a line and we will say what we think.
Where we work
- Baffle filters
- Plenum chambers
- Wall canopies
- Canopy light fittings
- Island canopies
- Grease gutters
What staff can safely do
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. That is our job.
FAQs for North Harrow
Which fire authority looks after North Harrow?
It’s London Fire Brigade, which covers North Harrow. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
Can you work in North Harrow outside opening hours?
Yes. We work evenings, overnight and at weekends. That way a site in North Harrow doesn’t have to lose a day’s trading. Let us know the hours you’re closed and we’ll book within them.
Do you clean inside the canopy as well as outside?
All of it: the outer surfaces, the inner skin, the seams and the troughs. The plenum behind the filters is included, since that is where grease hides.
What should I send you?
Where the site is, what it is and when it’s open, plus pictures of the system and your last certificate or report if you have one.
Is TR19 cleaning required by law?
No. The law sets the duty, and TR19® is the recognised benchmark for meeting it. Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person has to manage fire risk, and many insurers can refuse or reduce a claim without proof of cleaning.
What accreditations do you have?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We have been trading since 2009 and we are fully insured.
Can we book visits on a schedule?
Yes, of course. Tell us what you have and how it’s used and we’ll propose a schedule with a fixed quote.
Are you insured?
Yes, we are fully insured. CHAS and SafeContractor accreditation sit alongside it, for sites that check contractor safety.
More services for North Harrow
Canopy cleaning in North Harrow: the local picture
The FSA’s data shows about 25 pubs and bars and about 4 hotels and guest houses registered within about 1.5 miles of central North Harrow. A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. Kitchens in North Harrow get their food hygiene inspections from Harrow council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. A dated certificate in the maintenance file answers the question before it’s asked. Night work suits London kitchens, and roads and loading bays tend to be quieter too.
School kitchens, at schools like Longfield Primary School for example, are usually cleaned in the holidays so no lunches are lost. A hospital like Northwick Park Hospital, about 1.9 miles east, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
North Harrow is about 1 mile north-west of Harrow, in Greater London. Whether your site is in the middle of North Harrow or further out, we cover canopy cleaning for every kind of premises, from a single unit to a large public building. 764 places in Greater London are on our list, large and small. You can also see our page for London, roughly 13 miles from North Harrow.
We work across the HA2, HA1 and HA5 postcode area for canopy cleaning and the roads nearby. Whether your site is on The Avenue, Pinner Road and Durham Road or a nearby road, we can help. If your site is just outside North Harrow, we cover Rayners Lane (1 mile south-west), Harrow (1 mile south-east), Roxbourne (1 mile south-west), Eastcote (1 mile west) and Greenhill (1 mile east). We also work in nearby towns such as London (13 miles south-east), City of Westminster (10 miles south-east), Marylebone (10 miles south-east), Kensington (9 miles south-east), St Pancras (11 miles east) and Shoreditch (13 miles east).
Near you in North Harrow
Typical jobs here are in premises near Nower Hill High School, Heathfield School and Headstone Manor Recreation Ground, among other places. For rail, the closest station is Harrow-on-the-Hill station, about 1.2 miles east. Other landmarks nearby include St. George's Shopping Centre (1 mile east) and Hilfield Castle (5 miles north). Green spaces nearby include Northala Fields and Islip Manor Meadows.
Do you need canopy cleaning in North Harrow?
Grease that runs down the inside of a canopy gathers in its gutters and troughs. If they’re not emptied, they fill and overflow, and grease ends up dripping from the canopy edge.
If you notice any of these, it’s worth a diagnosis:
- A hood coated in old grease
- Filters that never seem to stay clean
- Overflowing grease troughs and gutters
- Wet, greasy drips from the hood
Headstone Manor, about 0.8 miles north-east, is one of the historic houses near North Harrow; if you run event catering at a venue like that, cleans can be booked between functions.
Before booking anyone
- Whether they recommend a next date
- Whether the quote is based on a survey or photos
- How VAT is shown on the quote
- Exactly which parts of the system are covered