Greater London · Grease filter exchange
Grease Filter Exchange in Harmondsworth
Grease filter exchange in Harmondsworth from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Grease building up behind the canopy filters
- Poor airflow through the filters
- A canopy that drips grease
Harmondsworth kitchens: local notes
The FSA’s food hygiene register shows about 73 restaurants, cafés and works canteens and about 10 takeaways in Harmondsworth and the streets around it, up to about 1.5 miles out. Any of those kitchens with a canopy relies on its filters to catch grease before it reaches the duct. London Fire Brigade covers Harmondsworth. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel. London jobs typically start after the last service, with loading and roof access agreed with the building first.
Bursars and site managers at schools such as Harmondsworth Primary School tend to book extract cleaning for when the kitchen is empty. Healthcare kitchens, like those at hospitals such as Harlington (about 1.4 miles east), often cook for long hours, which puts them in BESA’s heavier-use bands.
Harmondsworth is about 1 mile south-west of West Drayton, in Greater London. Whether your site is in the middle of Harmondsworth or further out, grease filter exchange is available to all kinds of commercial premises, from small sites to large estates. Across Greater London, we cover 764 places, Harmondsworth among them. You can also see our page for London, roughly 17 miles from Harmondsworth.
Our technicians cover all of UB7 and TW6 for grease filter exchange and the roads nearby. If you need grease filter exchange at premises on Moor Lane, Hatch Lane and High Street or a nearby road, our technicians can take on the work. Nearby, we also carry out grease filter exchange in Longford (1 mile south-west), Sipson (1 mile north-east), Heathrow (2 miles south-east), Harlington (2 miles east) and Stanwell (2 miles south). Further out, we also cover City of Westminster (14 miles east), Marylebone (14 miles east), Kensington (12 miles east), Hampstead (14 miles east), Ruislip (7 miles north-east) and Brompton (14 miles east).
Landmarks near Harmondsworth
We work in commercial kitchens and buildings around Harlington Community School and The Five Bells Inn. For rail, the closest station is Heathrow Terminal 5 Rail station, about 1 mile south. A little further out are British Airways Heritage Collection (3.5 miles north) and Harlington (1.4 miles east). The countryside around Harmondsworth includes Crane Meadows and Staines Reservoirs.
Grease filter exchange for kitchens and businesses in Harmondsworth
The filters in the canopy are the first thing cooking vapour meets. They catch grease before it reaches the plenum and ductwork, but only while they’re reasonably clean. Our grease filter exchange service swaps dirty filters for clean ones on a schedule. The work covers mesh filters, school and hospital kitchens and restaurants and pubs, and common reasons people get in touch are blocked baffle filters and filters that leave gaps in the canopy.
Across London, many commercial kitchens are squeezed into basements and narrow back-of-house spaces, with extract ducts that can climb several floors to discharge at roof level. For a kitchen in Harmondsworth, that usually means a longer system to clean and more access panels to plan around.
Nothing is signed off by word of mouth: a written report, dated and illustrated with pictures, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.
- Place
- Harmondsworth (UB7, TW6)
- Region
- Greater London
- Paperwork
- Photo report after each visit
- Price
- A fixed quote up front
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
What we do, step by step
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and the same goes into the written report. All told, the work takes a few minutes per canopy, longer for a large kitchen with several canopies. Getting kit into a London building takes planning, so let us know where we can load and park in Harmondsworth.
- We look at the canopies and the condition of the filters.
- We note any filters that are bent, damaged or missing.
- We exchange the dirty filters for a clean set.
- The filters are checked for fit before we go.
- We tell you if the plenum or canopy needs a clean.
Preparing for the visit
- Arrange a key holder or contact on site
- Let us know when the site is closed or quiet
- Let us know about parking and loading
Getting a quote
Quoting starts with a diagnosis, either from photos and details you send or from a site visit. After that, you get a fixed price for the work, before work begins.
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Nearby places to Harmondsworth
Other services in Harmondsworth
Common problems we fix in Harmondsworth
Missing filters are more common than you’d think. Every gap in the filter bank lets grease straight into the plenum where it settles out of sight.
Any of these means the system needs a check-up:
- Grease filters clogged with grease
- Poor airflow through the filters
- Damaged filters letting grease past
- Filter washing that keeps being missed
A hall kitchen that only cooks for events, whether near Church of St Mary or elsewhere in Harmondsworth, still needs its extract cleaned, just less often.
What your quote should include
- What records you will receive afterwards
- Whether the quote is based on a survey or pictures
- Whether the price is fixed
- Proof of insurance
Harmondsworth: your questions answered
Which council inspects kitchens in Harmondsworth?
In Harmondsworth, it’s Hillingdon council that carries out food hygiene inspections. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
Can a school canteen extract in Harmondsworth be done out of term time?
Yes, and it’s the easiest time to do it. With about 11 schools and colleges on the FSA’s register within roughly a mile and a half of Harmondsworth, it pays to plan holiday dates ahead. Send us your term dates when you call us on 0345 646 2711 or use the quote form, and we will fit the work in.
What if some of our filters are damaged?
Damaged filters do not seat properly and let grease through. We flag any we find and explain what’s needed.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Do I get a report after the visit?
Yes. It’s your proof that the work was done: a written, dated record with pictures of what we did and anything we couldn’t access.
Can you come out in an emergency?
Yes. Our emergency line runs 24/7 for anything that can’t wait until a planned visit. Call us any time and explain what’s happened.
Which sectors do you work in?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, as well as food production and leisure sites.
Are you accredited?
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.
Why it’s worth doing now in Harmondsworth
Leaving filters too long pushes more grease into the plenum and ducts. That makes the next full clean a bigger job, and grease may build up faster than the cleaning interval allows. It’s better booked as a planned job in Harmondsworth than handled as an emergency.
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before we start.
Why choose Duct Doctor in Harmondsworth
- A fixed price before any work starts
- A single point of contact for sites across the South East and London
- CHAS and SafeContractor accredited, with ISO 9001
- A written report with photos after each visit
Take a look at how cleaning jobs are priced or our accreditations and certificates.
What your team can do, and what needs us
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.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, alongside our reports.
Part by part
Baffle filters
Baffle filters are a common choice for commercial canopies. They still need regular cleaning as the collected grease builds up between the blades.
Canopy filter housings
Filters sit in a housing or channel in the canopy. If it’s bent or greasy, filters won’t seat properly.
Aftercare tips
A little care between visits keeps the system in better shape. Our advice:
- Keep every filter in place during service
- Make sure we can reach the canopy on exchange day
- Tell us if a filter is bent or damaged
- Do not let the full clean slip because filters are changed
Keep an eye out for filters that have been taken out. Gaps let grease into the plenum so tell us if you need a replacement.
Filters that are left too long stop protecting the system. A regular cycle keeps the rest of the system cleaner until the next TR19 clean.
Landlords, agents and facilities managers
Running several sites is easier with one contractor. We work across London and the South East, so visits at different addresses can be planned together and kept to a regular schedule.
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we’ll come back with a fixed quote.