Hertfordshire · Grease filter exchange
Grease filter exchange in Farnham, Hertfordshire
Grease filter exchange for businesses, landlords and public buildings in Farnham. CHAS, SafeContractor and ISO 9001, and fully insured.
- Damaged filters letting grease past
- Grease dripping from the canopy
- A greasy plenum behind the filters
What your team can do, and what needs us
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
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. Reaching it takes a specialist with the right equipment.
Grease filter exchange in Farnham
A filter service works alongside TR19® cleaning, not instead of it. Clean filters reduce the grease reaching the ducts though vapour still carries some grease past them. So the canopy, plenum and ducts still need their full TR19 clean. If you are dealing with filter washing that keeps being missed and weak extraction at the canopy, we can put it right.
Work in a small place like Farnham starts with a call to agree access and timings, 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 sign-off is always in writing: a dated report with photos of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Location
- Farnham (CM23)
- Wider area
- Hertfordshire
- Reporting
- Photo report after every visit
- Quote
- Fixed quote, usually within a working day
- Hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Honest limits
Some problems need a different service or another trade:
- A fan that is failing or too weak for the system
- A canopy that needs a proper clean
- Odours from the discharge that filters won’t stop
If in doubt, phone us on 0345 646 2711, or send details by email and we’ll say what we think.
Where we work
- Island canopies
- Baffle filters
- Wall canopies
- Restaurants and pubs
- School and hospital kitchens
- Mesh filters
How the job changes from site to site
Busy restaurant and pub kitchens
High-output kitchens clog filters quickly. They often need the shortest exchange interval.
Canopy filter housings
The trough or channel under the filters fills with grease. If it needs attention, we will tell you.
The process
The visit has three parts: set-up, the treatment itself and the sign-off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with photos. The middle part takes longest, and that takes less than an hour in most kitchens. Somewhere like Farnham, lanes, gates and parking are worth mentioning in advance.
- The filters in each canopy are measured and counted.
- We set the interval with you.
- The dirty set is lifted out.
- Clean filters go in and we check they sit snugly.
- The dirty filters leave with us and the next visit is booked.
Getting ready for the visit
- Make sure someone can let us in and lock up afterwards
- Make sure equipment near the work can be switched off and left to cool
- Have your last certificate or report to hand
Getting a quote
If you need grease filter exchange in Farnham, call 0345 646 2711, or send details by email. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. We normally send a fixed quote within one working day.
Related advice
Looking after it afterwards
Here’s the after-treatment advice, short and simple:
- Keep every filter in place during service
- Keep the canopy clear for exchange visits
- Wipe the outside of the canopy as part of daily cleaning
- Watch for grease drips between visits
Fresh filters improve airflow at the canopy straight away. Keep the extract running while you cook so they catch grease as intended.
Damaged filters leave gaps in the defence. Sorting them now keeps grease where it can be caught.
FAQs for Farnham
Can you clean school kitchen extracts in Farnham during the holidays?
Yes, out-of-term visits are normal for schools. There are about 3 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Farnham. Booking early in the term gives the best choice of holiday dates.
Who would carry out a food hygiene inspection at a kitchen in Farnham?
In Farnham, it’s Uttlesford council that carries out food hygiene inspections. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.
Which accreditations do you hold?
Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
Is there a cleaning option for the filters we have?
We can. Cleaning your existing filters is an option, and others prefer a straight swap. Either way, the canopy isn’t left without filters during service.
What’s the right interval for changing filters?
It depends on how much and what the kitchen cooks. Heavy cooking means more frequent changes than lighter ones. We agree the interval with you.
Which records should we keep?
The reports and certificates from each visit, plus your own logs. They’re what an insurer, fire officer or EHO may ask for, so keep them where they can be found quickly.
Which sectors do you work in?
Commercial premises of every kind: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. Work is timed around how each site runs.
Will we have to stop cooking for a filter change?
Not for long, and we can time it to avoid service. The canopy shouldn’t be used without filters so the swap is done promptly.
What affects the quote in Farnham
Before we fix a price, we need to know a few things. We look at:
- Working hours and out-of-hours timing
- What state the system is in
- One-off work versus a regular cycle
- Any permits to work or inductions
One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. You will have a fixed price before any work starts.
Helping us quote
To speed up the quote, please include:
- Any symptoms, from odd noises to smells or leaks
- Your last certificate, test record or report
- Close-ups of filters, grilles, hatches or access panels
- The site address and the type of premises
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
Grease filter exchange in Farnham: the local picture
The FSA’s food hygiene register shows about 3 restaurants, cafés and canteens across Farnham and its immediate surroundings (about a mile and a half). Each canopy among them has filters that load with grease and need swapping or cleaning. Food hygiene inspections in Farnham are the job of Uttlesford council’s environmental health team. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Our report lists what was cleaned and when, which is useful to have ready. Farnham sits within the area of Hertfordshire 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.
A hospital like Herts and Essex Hospital, about 2.8 miles south-east, is the kind of site where a kitchen may cook for patients, staff and visitors all day. Term dates shape school work: for a school like Farnham Church of England Primary School, an extract clean fits neatly into a half-term or summer break. Historic houses near Farnham, such as Much Hadham Palace about 4.2 miles south-west, are a reminder that older buildings with event kitchens can have long, awkward duct routes.
Farnham is about 2 miles north of Bishop's Stortford, in Hertfordshire. Whether your site is in the middle of Farnham or further out, grease filter exchange is available to all kinds of commercial premises, from small sites to large estates. 381 places in Hertfordshire are on our list, from busy centres to quieter spots. Chelmsford is in our area too, around 19 miles away.
Our technicians cover all of CM23 for grease filter exchange and the roads nearby. If your site is just outside Farnham, we cover Uppend (1 mile north), Mount Pleasant (1 mile north), Manuden (2 miles north-east), Bentfield Green (2 miles east) and Stansted Mountfitchet (2 miles east). Within a short drive, we also cover Stevenage (14 miles west), Hoddesdon (12 miles south-west), Hertford (12 miles south-west), Ware (10 miles south-west), Baldock (15 miles north-west) and Broxbourne (13 miles south-west).
Near you in Farnham
Around Farnham, our work takes us to kitchens and buildings near St Mary's Catholic School and the streets around them. Farnham’s nearest station is Stansted Mountfitchet station, roughly 2.4 miles east of the centre. Well-known places in the area include Moated mound (1.7 miles south-west) and Herts and Essex Hospital (2.8 miles south-east). Green spaces nearby include Portingbury Hills and Aubrey Buxton Nature Reserve.
Leave it or put it right?
Dripping canopies and greasy smells often start with the filters. Left, it ends up on equipment, food areas and staff and that is the kind of thing inspectors look for. With notice, the visit to Farnham can be fitted around your bookings and events.
The cost depends on the size of the system, the condition it’s in and how easy it is to reach. You get a fixed price before work begins, so there are no surprises.
Why Farnham businesses choose us
- Accredited under CHAS and SafeContractor, with ISO 9001
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Ventilation hygiene specialists since 2009
- We are fully insured
Take a look at what affects the cost or our accreditations and certificates.