Greater London · NW4
Kitchen extract cleaning in NW4
We cover every part of the NW4 postcode district, which takes in Hendon, The Burroughs and Brent Cross. You get a certificate and photo report after every clean.
Towns and villages in NW4
Cleaning and testing we offer in NW4
- Grease trap cleaning
- Ventilation duct cleaning
- Kitchen extract cleaning
- Grease filter exchange
- Ductwork cleaning
- TR19 inspections and grease testing
- Air handling unit cleaning
- Extract fan cleaning
- Commercial kitchen deep cleaning
- Canopy and hood cleaning
- Fire damper testing
- Extract fan repair and replacement
- All services
Let us know the job and your postcode and we’ll give you a clear price: phone us on 0345 646 2711, or send details by email.
About kitchen extract cleaning in NW4
Has the extract gone a while without a clean, or has the paperwork gone missing? Send a few photos of the canopy and filters when you give us a ring on 0345 646 2711 or email us, and we will come back with a fixed price for the work in NW4, usually within one working day. Typical jobs include a kitchen taken over without any extract records and a kitchen with no current TR19 certificate, on canopies and hoods, discharge points and plenums and filters.
Your trading hours come first. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. Once we are in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes as long as the system needs, from a few hours to several planned visits.
- First comes a survey of the whole system, by pictures or a visit.
- Set points are tested for grease thickness and the quote is fixed before work begins.
- With the kitchen closed and equipment off and cool, the area is sheeted.
- Canopy, plenum, filters, duct runs, risers, fan and discharge are all cleaned to TR19® Grease.
- Readings and photos are taken again, and you receive a TR19 certificate and photo report.
What you’ll pay
Working hours, access and the scale of the site all affect the cost. We take each of them into account and give you a fixed price before we start.
Why businesses in NW4 choose us
- In business since 2009
- Photo reports with every job
- Full insurance on every job
- Work around your opening hours, with 24/7 emergency cover
Get a fixed quote
The quickest way to a quote is to send pictures: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and we can price many jobs without a visit.
Local landmarks in Hendon
Around Hendon, our work takes us to kitchens and buildings near Hasmonean Primary School, Kisharon College and Hendon School and the streets around them. Nearby too are Christ Church Hendon (under half a mile north-east), The White Bear pub (less than half a mile north-west) and Hendon Park (under half a mile south). The closest station to Hendon is Hendon station, about 0.7 miles south-west. Well-known places in the area include Brent Cross Shopping Centre (0.5 miles south) and St Andrew's Hospital (1.6 miles south). Not far away are Darland's Lake and Parliament Hill.
Kitchen extracts across NW4
In NW4, a busy kitchen in a place such as Hendon, Colindale and Grahame Park and a quiet village kitchen need very different cleaning intervals. Grease readings and BESA’s minimum intervals set the schedule for each.
In England, the Fire Safety Order puts the duty on the responsible person to assess and reduce fire risk, and each certificate and photo report is a record you can keep in your log book.
Hendon: If you run a church or community hall kitchen, near Christ Church Hendon or elsewhere in Hendon, its extract still collects grease from every lunch and event. School kitchens, at schools like Hendon School for example, are normally cleaned in the holidays so no lunches are lost.
Why it fails
Grease in the extract matters because it burns. Flames from a pan or grill can be pulled into the canopy by the fan, where burning grease can carry a fire along the ducts and into other parts of the building. That’s why controlling extract grease belongs in the fire risk assessment.
Common reasons sites call us are:
- Stale cooking odours from the system
- A smoky, hot kitchen with weak extraction
- Missing paperwork after a change of operator
- Proof of cleaning requested by an insurer
What the work involves, part by part
Canopy and plenum
Behind the grease filters sits the plenum, which daily cleaning never reaches. With the filters out, the plenum is scraped and degreased.
Grease filters
Baffle filters are cleaned as part of every TR19 clean, and put back so they seat correctly. We will tell you if any need replacing.
What staff can safely do
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
Between visits
No system stays clean for ever, but care slows the build-up. Our tips:
- Tell us when the extract starts to drip or smell
- Make sure every filter is fitted before cooking
- Keep grease collection points emptied
- Keep to the recommended cleaning interval
The kitchen is left clean and ready for the next service. Grease and dirty water are collected and taken off site, and equipment can be switched back on once we have gone.
Clean the grease filters often, not just on clean day. A filter that is clean and seated properly stops more grease getting into the plenum, so the ductwork stays cleaner for longer.
How we price kitchen extract cleaning
You will get a fixed price before work begins. It’s based on:
- The size of the system
- Site requirements such as sign-in and permits
- Access, including roofs, risers and ceiling voids
- How many systems or sites are involved
Combining work into one visit or one programme often makes better use of the time. Mention every system or site you need covered, and you will get one fixed quote.
What we need to know
When you call or email, these details help:
- The site address and the type of premises
- Problems your staff have spotted
- The roof, plant room or outside wall the system runs to
- Wide photos of the system and the area around it
Quotes are quick. Send a few details and pictures, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Your questions about kitchen extract cleaning in NW4
What accreditations do you hold?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 sit alongside that, and we’re fully insured.
How much notice should we give?
The more notice, the better, particularly for night and weekend visits. We normally quote within one working day, and emergencies are covered by our 24/7 line.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
What happens to the waste?
We take it away when we go. While we work, it’s kept contained to keep the area clean.
What do I get after the clean?
A TR19 certificate and a photo report. The certificate is issued through the BESCA Vent Hygiene Elite portal, and the report shows before and after pictures, readings, any areas not reached and the next clean date.
Is a quote from photos possible?
Often, yes. Photos of the system and the access, plus your opening hours and last report, are often enough. Larger or hidden systems need a survey on site first.
Do I have to clean my extract to TR19 by law?
TR19 isn’t written into law, but the Fire Safety Order 2005 does require the responsible person to manage fire risk. TR19 is the standard insurers and fire officers expect, and many policies require it.