Hertfordshire · Grease filter exchange
Grease filter exchange in Thorley Street, Hertfordshire
Professional grease filter exchange in and around Thorley Street, timed so the site keeps working and finished with a written report and photos.
- Filters that leave gaps in the canopy
- Filter washing that keeps being missed
- Weak extraction at the canopy
Grease filter exchange for kitchens and businesses in Thorley Street
Filter exchange sits between full TR19® cleans. Fresh filters help limit what gets into the ductwork though vapour still carries some grease past them. That’s why the whole system still needs cleaning to TR19 at the right interval. The work covers restaurants and pubs, wall canopies and island canopies, and common reasons people get in touch are a greasy plenum behind the filters and gaps where filters have been removed.
Rural kitchens often have long, low duct runs through a roof space or along an outside wall, where grease settles in the flat sections. Access, parking and timings are agreed before the day.
Think of the report as the system’s health record: dated, with photos, and showing what was done. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal and sits alongside the report.
- Where
- Thorley Street (CM23)
- Region
- Hertfordshire
- Records
- Photo report after every visit
- Quotes
- A fixed quote up front
- When we work
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
How the job changes from site to site
Canopy filter housings
Filters sit in a housing or channel in the canopy. If it’s bent or greasy, filters will not seat properly.
School, care home and staff kitchens
Even kitchens with fixed meal times build up grease though typically at a gentler pace.
Grease filter exchange in Thorley Street: the local picture
The FSA’s food hygiene register includes about 24 pubs, bars and clubs within about 1.5 miles of central Thorley Street. Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. Fire safety in Thorley Street falls to 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. Kitchens in Thorley Street get their food hygiene inspections from East Hertfordshire council. Extraction counts as kitchen equipment, so its condition can come up on the day. Before-and-after pictures from each clean are a simple way to show the extract is in hand.
If you look after a school kitchen, at a school such as Thorley Hill Primary School or anywhere near Thorley Street, the holidays are the usual time for a TR19® clean. Volunteers running a hall kitchen near Parish Church of St James the Great, or anywhere in Thorley Street, may not know when the extract was last cleaned, and a grease test settles it.
Thorley Street is about 1 mile south of Bishop's Stortford, in Hertfordshire. Thorley Street gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with pictures. Our Hertfordshire coverage runs to 381 places, Thorley Street among them. You can also see our page for Chelmsford, about 16 miles away.
Our technicians cover all of CM23 for grease filter exchange and the streets around it. We also cover the places around Thorley Street: Thorley (1 mile west), Spellbrook (1 mile south), Little Hallingbury (1 mile south-east), Bishop's Stortford (1 mile north) and Gaston Green (1 mile south-east). Further out, we also cover Stevenage (15 miles west), Hoddesdon (10 miles south-west), Cheshunt (13 miles south-west), Hertford (11 miles west), Ware (8 miles west) and Broxbourne (10 miles south-west).
Near you in Thorley Street
We work in commercial kitchens and buildings around Coach And Horses Public House and The Bishop's Stortford High School and the streets around them. The closest station to Thorley Street is Bishops Stortford station, about 1.2 miles north. Well-known places in the area include Moated mound (3.4 miles north-west) and Herts and Essex Hospital (1.3 miles north-east). Open spaces near Thorley Street include Thorley Wash nature reserve and Portingbury Hills.
Why deal with it now?
Once filters are saturated, more grease gets past them. The ductwork then loads up faster, and grease may build up faster than the cleaning interval allows. Somewhere as small as Thorley Street, losing a kitchen or building to a fault is felt by everyone who uses it.
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you’re unsure, phone us on 0345 646 2711, or email photos for straight advice and a fixed quote.
Why us?
- CHAS and SafeContractor accredited, with ISO 9001
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- We diagnose before we treat
Between visits
So the system stays in good health:
- Let us know if your cooking hours increase
- Always run the extract while cooking
- Book full TR19 cleans alongside filter changes
- Clear anything stored on or near the canopy
The canopy looks cleaner and the air moves better right away. Always run the extract during cooking so they catch grease as intended.
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.
Honest limits
Some problems need a different service or another trade:
- Smell complaints that need odour control equipment
- Grease already built up in the ductwork, which needs a full TR19 clean
- A noisy or failed extract fan
If you are not sure, just phone us on 0345 646 2711, or send details by email and we’ll give you a straight answer.
Where we work
- Restaurants and pubs
- Wall canopies
- Island canopies
- Mesh filters
- Baffle filters
- School and hospital kitchens
What affects the quote in Thorley Street
We don’t publish a price list, because no two systems are the same. The quote depends on:
- One-off work versus a regular cycle
- Whether several sites go on one quote
- The scale of the work
- Travel, parking and unloading
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will go through it with you.
Helping us quote
When you call or email, these details help:
- The roof, plant room or outside wall the system runs to
- Wide pictures of the system and the area around it
- Where the site is and what kind of site it is
- Problems your staff have spotted
For a fixed quote, call us on 0345 646 2711, or send details by email and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. You will usually have a quote within one working day.
Also near Thorley Street
Also in Thorley Street
The process
A visit follows the same order every time: protect the area, make the system safe, do the work, tidy up and hand over the paperwork. The visit itself takes less than an hour in most kitchens. If the van will struggle with a lane or gateway near Thorley Street, let us know and we’ll plan around it.
- 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.
- We take the greasy set away and confirm the next date.
Getting ready for the visit
- Clear loose items from the work area
- Mention any parking or loading restrictions
- Make sure someone can let us in and lock up afterwards
Ask for a quote
To help us quote: the address, the type of site and when it’s open, a few pictures and any previous report or certificate. Then phone us on 0345 646 2711, or email photos.
Related advice
Do you need grease filter exchange in Thorley Street?
Cooking vapour carries grease into the canopy. Much of it is trapped by the filters so they gradually clog and airflow falls away.
Most sites get in touch after spotting one of these:
- Grease collecting in the filter channels
- Bent or damaged filters that don’t sit properly
- Filters that come out of the sink still dirty
- Poor airflow through the filters
If you run catering at a historic house or estate in the area (Much Hadham Palace is about 3.6 miles west), event kitchens in older buildings often have awkward duct runs that need planning.
Comparing quotes
- What records you’ll receive afterwards
- What insurance they carry
- What hours they’ll be on site
- Whether they recommend a next date
Questions from Thorley Street
Can the work in Thorley Street be done at night or at weekends?
Yes, evening, overnight and weekend work is normal for us. It means the site in Thorley Street keeps running as normal. Just call us on 0345 646 2711, or email photos with your opening times and we will plan around them.
Do you clean school canteen extracts around Thorley Street out of term?
Yes. The holidays are the usual time for school work. There are about 18 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Thorley Street. Booking early in the term gives the best choice of holiday dates.
Can you look after several sites?
Yes. Send the list of sites and the work at each and you will get one fixed quote.
What types of filter do you exchange?
Both baffle filters and mesh filters are covered. At the start, we note what your canopies use so every set we bring fits.
Do you survey before quoting?
Yes. Every job is surveyed first, from your photos and details, or with a visit where needed. Then you get a fixed quote.
Where do the greasy filters go?
They leave with us. That’s the point of an exchange: you always have a clean set fitted, with no washing for your team.
What happens if you can’t reach some of it?
They’re listed in the report, never skipped quietly. The report says which parts couldn’t be reached and why, along with a quote to put access in.
How much notice should we give?
It depends on the time you need and how big the job is. Tell us your preferred dates when you ask for a quote, and for anything urgent, ring our 24/7 emergency line.