Kent · Grease filter exchange
Northfleet grease filter exchange
Grease filter exchange in Northfleet, surveyed first and signed off with a written report and pictures. Call for a fixed quote.
- Bent or damaged filters that don’t sit properly
- A canopy that drips grease
- Hand-washed filters that still look greasy
When something else is needed
An honest diagnosis matters more to us than a booking, so here’s what grease filter exchange will not do:
- Cooking smells reaching neighbours, which need odour control
- A canopy too small for the cooking beneath it
- Grease behind the filters that a swap cannot remove
Not sure which it is? You can call us on 0345 646 2711, or send details by email and we will tell you honestly before booking.
Parts of the system we cover
- Mesh filters
- School and hospital kitchens
- Wall canopies
- Baffle filters
- Island canopies
- Restaurants and pubs
Grease filter exchange in Northfleet
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 baffle filters, restaurants and pubs and school and hospital kitchens, and the jobs we see most are a greasy plenum behind the filters and a canopy that drips grease.
Around a town like Northfleet, extract cleaning normally means a restaurant, pub, takeaway or the kitchen of a school or care home. Whatever the kitchen, the canopy, filters, duct and fan all collect grease.
Insurers, fire officers and environmental health officers all look at records. That is why every job is written up in a report with photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Place
- Northfleet (DA11)
- Region
- Kent
- Reporting
- Written report with pictures
- Price
- A fixed price before work begins
- Working hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026

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.
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so records stay tidy.
The process
Night work is normal for us. A lot of visits happen overnight or at weekends, so a kitchen or building can carry on as usual the next day. The visit itself takes well under an hour for most canopies. A closed day, an evening or an early start: whichever suits your site in Northfleet, we will book around it.
- We count and measure the filters in every canopy.
- We agree a schedule that suits how much the kitchen cooks.
- On each visit, the dirty filters come out of the canopy.
- Clean filters go straight back in, seated properly with no gaps.
- If a filter is damaged or the plenum needs attention, we tell you.
Before we arrive
- Tell us where we can park and unload
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Name a contact who can let us in at the agreed time
Ask for a quote
Want a quote for grease filter exchange? Please ring 0345 646 2711 or drop us a line with a few details about the site. We will talk you through the work and give you a fixed quote before anything is booked.
Advice
Grease, kitchens and Northfleet
At about 3 miles from the coast, Northfleet is close enough for sea air to matter. Salt in the air is hard on rooftop fans, discharge cowls and fixings, so we check them for corrosion as well as grease. The FSA’s food hygiene register shows about 108 cafés, restaurants and staff canteens and about 59 sandwich bars and takeaways within 1.5 miles or so of the middle of Northfleet. Any of those kitchens with a canopy relies on its filters to catch grease before it reaches the duct. Northfleet sits within the area of Kent Fire and Rescue Service. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract.
If you look after a school kitchen, at a school such as Northfleet Technology College or anywhere near Northfleet, the holidays are the usual time for a TR19® clean. Church and community hall kitchens, near Church of All Saints or anywhere around Northfleet, are easy to forget, but their extracts collect grease like any other. If your kitchen is in a listed or historic building, like the houses around Northfleet (Cobham College is about 3.7 miles south-east), fitting access panels needs care.
Northfleet is about 5 miles east of Dartford, in Kent. For grease filter exchange in and around Northfleet, please give us a ring on 0345 646 2711 or email us for a fixed quote. We work across South East England and London, Northfleet included. Northfleet is one of 922 towns, villages and districts in Kent we cover for grease filter exchange. We also work in Maidstone, about 14 miles from Northfleet.
Grease filter exchange in DA11 is surveyed, quoted and booked the same way as anywhere else. Whether your site is on Lawrance Square, London Road and Marks Square or anywhere close by, we can help. Main roads around Northfleet include the A2 and A226, so getting to you is simple for grease filter exchange. Nearby, we also carry out grease filter exchange in Painters Ash (1 mile south-west), Springhead (1 mile west), Windmill Hill (1 mile east), Northfleet Green (1 mile south) and Gravesend (1 mile east). Within a short drive, we also cover Maidstone (14 miles south-east), Dartford (5 miles west), Sevenoaks (13 miles south-west), Swanley (8 miles west), Kings Hill (11 miles south) and Foley Park (13 miles south-east).
Near you in Northfleet
Locally, jobs take us to businesses close to The Six Bells pub, Saint George's Church of England School and Copperfield Academy. For rail, the closest station is Gravesend station, roughly 1 mile north-east of the centre. A little further out are Bluewater (3.3 miles west) and Stone Castle (3.1 miles west). Green spaces nearby include Chafford Gorges Nature Park and Sawyers Lake.
Towns and villages near Northfleet
More services for Northfleet
Why deal with it now?
For any kitchen in Northfleet, filters cannot stand in for a full TR19 clean. But clean filters do help the system between cleans, and that shows when the next clean comes round. Dealt with now, it’s a planned visit around your hours rather than a callout when the site needs to be open.
Putting the work off seldom saves money. Problems in a system tend to grow, which can make the next visit longer. If you’re not sure what’s needed, call 0345 646 2711 or use the quote form and we will give you an honest view and a fixed quote.
Why choose Duct Doctor in Northfleet
- Accredited under CHAS and SafeContractor, with ISO 9001
- Full insurance on every job
- A single point of contact for sites across the South East and London
- A fixed price before any work starts
How we price grease filter exchange
The quote reflects the site in front of us. We take into account:
- Site requirements such as sign-in and permits
- Whether it’s a one-off visit or part of a schedule
- How many systems or sites are involved
- What state the system is in
Every site is different, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.
What to send for a quote
Before you ask for a quote, gather:
- The times we could work without disrupting the site
- 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
- Detail shots of panels, filters and grilles
The quickest way to a quote is to send pictures: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Common questions in Northfleet
Do you work overnight in Northfleet?
Yes, we can come after you close and finish before you open. The site is handed back ready to open. Your opening times are the first thing we ask for.
Which council inspects kitchens in Northfleet?
Food hygiene inspections in Northfleet are carried out by Gravesham council. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
Do you handle baffle and mesh filters?
We work with both baffle and mesh filters. We check what’s in your canopies first and set up the service around them.
What do you do with what you remove?
It leaves the site with us at the end of the visit. While we work, it’s kept contained to keep the area clean.
What happens if you cannot reach some of it?
The report shows them clearly. In ductwork, new access panels are often the answer, which we can install.
How do you keep the site clean during the work?
We start with protection: sheeting over floors, worktops and anything close to the work. We tidy up and take our waste away before we leave.
Do you look at the system first?
Yes. Photos often do the job, and larger or hidden systems get a visit.
Do you deal with bent or broken filters?
A badly damaged filter should be replaced. We’ll show you which ones on the visit.
How the job changes from site to site
Busy restaurant and pub kitchens
The more a kitchen cooks, the more grease the filters see. Changing them on time protects the ducts behind.
The plenum
A greasy plenum is a sign filters have been left too long, or that a full clean is due.
What your team can do, and what needs us
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, they should report it rather than try to fix it. We can diagnose it and quote.
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, which is where we come in.