Kent · Grease filter exchange
Grease filter exchange in Knockholt, Kent
Need grease filter exchange in Knockholt? We survey first, give you a fixed quote and work around your opening hours, then sign off with a report and photos.
- Filters so greasy the air can barely pass
- Bent or damaged filters that don’t sit properly
- Grease left in baffles after washing
Common problems we fix in Knockholt
The type of cooking matters. Fryers, grills and woks load filters faster than ovens and steamers so no single schedule suits every kitchen.
Clients typically contact us after spotting something like this:
- Filters so greasy the air can barely pass
- Weak extraction at the canopy
- Gaps where filters have been removed
- Filters that leave gaps in the canopy
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Orpington Hospital is the nearest hospital to Knockholt, about 3.6 miles north.
Before booking anyone
- What hours they’ll be on site
- Whether the quote shows VAT
- If they look at the system before pricing
- What happens if part of the system cannot be accessed
Grease filter exchange for kitchens and businesses in Knockholt
A filter that does not sit right lets grease straight past. Bent, damaged or missing filters leave gaps and every filter is checked when we swap them. We point out any that need replacing. Typical jobs include a canopy running with filters missing and a greasy plenum behind the filters, on wall canopies, school and hospital kitchens and baffle filters.
For a kitchen in or near Knockholt, the visit is planned around opening hours and the journey, and the clean covers the whole system, as it would anywhere: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.
The paperwork matters as much as the work. Each visit is written up with photos, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.
- Where
- Knockholt (TN14)
- Region
- Kent
- Paperwork
- Report and pictures after the visit
- Quotes
- A fixed price before any work starts
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Updated
- 30 October 2026

Other services in Knockholt
Kitchen extracts in Knockholt
Environmental health officers from Sevenoaks council inspect food businesses in Knockholt. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Keeping each certificate and photo report on file helps show the extract is looked after. The fire and rescue service for Knockholt is Kent Fire and Rescue Service. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.
Down House, about 2.7 miles north-west, is one of the historic houses near Knockholt; if you run event catering at a venue like that, cleans can be booked between functions. If you run a church or community hall kitchen, near St Katharine's Church or elsewhere in Knockholt, its extract still collects grease from every lunch and event.
Knockholt is about 4 miles north-west of Sevenoaks, in Kent. We carry out grease filter exchange for commercial premises of every kind in Knockholt and the rest of Kent. Knockholt is one of 922 places in Kent we cover for commercial clients. For sites nearby, see our London page (16 miles or so).
All of TN14 is within our area for grease filter exchange, from the main roads to the quietest streets. Whether your site is on Main Road and Blueberry Lane or a nearby road, our technicians can take on the work. We also cover the places around Knockholt: Knockholt Pound (1 mile north-east), Halstead (2 miles north-east), Sepham Heath (2 miles north-east), Pratt's Bottom (2 miles north) and Twitton (3 miles east). Larger places within reach include Dartford (11 miles north-east), Sevenoaks (4 miles south-east), Royal Tunbridge Wells (14 miles south-east), Gravesend (14 miles north-east), Tonbridge (11 miles south-east) and Northfleet (13 miles north-east).
Around Knockholt
We work in commercial kitchens and buildings around The Three Horseshoes pub and the streets around them. The closest station to Knockholt is Knockholt station, about 2.7 miles north-east. Other landmarks nearby include Orpington Hospital (3.6 miles north) and Otford Heritage Centre (3.9 miles east). Green spaces nearby include Betsom's Hill and Downe Bank.
Managing agents and facilities teams in Knockholt
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
We also work for facilities teams across offices, schools and healthcare across Kent. Work can be phased by floor, building or site around the people who use them.
What the work involves, part by part
Baffle filters
A clogged baffle filter restricts airflow. Swapping them for a clean set restores it.
School, care home and staff kitchens
A longer exchange interval may suit lighter cooking. The interval is set to fit.
What affects the quote in Knockholt
The survey tells us what the work involves. The main factors are:
- The condition of the system
- Site rules, permits and inductions
- Whether several sites go on one quote
- A single visit or a regular plan
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, and a neglected system can mean more work. If you’re not sure what’s needed, call 0345 646 2711, or email photos and we’ll give you an honest view and a fixed quote.
Helping us quote
Photos and a few facts are often enough to price the work. Useful things to send:
- Where the site is and what kind of site it is
- The roof, plant room or outside wall the system runs to
- Photos showing the whole system and its surroundings
- The times we could work without disrupting the site
For grease filter exchange in Knockholt, ring 0345 646 2711 or use the quote form. Let us know the site type and the opening hours, and send pictures or your last report if you can. We normally send a fixed quote within one working day.
What staff can safely do
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. Cleaning inside ducts and units is specialist work.
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Honest limits
Grease filter exchange cannot fix everything, and we will tell you before any work starts. It won’t put right:
- Grease deep in the extract system
- A fan that’s failing or too weak for the system
- A canopy too small for the cooking beneath it
Not sure which it is? You can phone us on 0345 646 2711, or email photos and we will tell you honestly.
What we work on in Knockholt
- Mesh filters
- Baffle filters
- Island canopies
- School and hospital kitchens
- Wall canopies
- Restaurants and pubs
What we do, step by step
The visit has three parts: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, while signing off means the written report and pictures. The middle part takes longest, and that takes a few minutes per canopy, longer for a large kitchen with several canopies. Visits to a village like Knockholt are booked in advance, at a time that suits whoever runs the site.
- 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, dry filters are fitted in their place, with no gaps left between them.
- Anything we notice, such as bent filters or a dirty plenum, is pointed out.
How to prepare
- Tell us the best time to work, such as after service or at a weekend
- Mention any parking or loading restrictions
- Find the previous report, if there is one
Ask for a quote
Every quote begins with a look at the system, from your pictures and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work so you know the cost before any work starts.
Advice
Knockholt: your questions answered
Which fire service covers Knockholt?
Fire safety enforcement in Knockholt is handled by Kent Fire and Rescue Service. It’s worth keeping your fire risk assessment, TR19® certificates and photo reports together, ready to show.
Can you get to a site in Knockholt?
Yes, we work in villages as well as towns, and Knockholt is covered. Just mention lanes, gates or anything else about the site when you book.
What paperwork should we keep on file?
Visit reports, certificates and your in-house cleaning logs. They’re what an insurer, fire officer or EHO may ask for, so keep them where they can be found quickly.
What’s TR19?
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.
What do you do to protect the area?
By covering it before any work starts. We keep the work contained and clean down when we finish.
Do you have a 24/7 line?
Yes. Our emergency line runs 24/7 for anything that can’t wait until a planned visit. Ring any time and tell us what’s happened.
Can you clean our existing filters instead?
We can. Some kitchens prefer their own filters cleaned on a schedule while others want an exchange. Either way, the canopy isn’t left without filters during service.
What happens to the dirty filters?
We take them away to be cleaned, so your staff do not have to wash them. Clean filters go straight in.