Hertfordshire · Grease filter exchange
Anstey grease filter exchange
A scheduled grease filter exchange, swapping dirty canopy filters for clean ones for businesses, landlords and public buildings in Anstey. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Filters so greasy the air can barely pass
- Grease left in baffles after washing
- Grease building up behind the canopy filters
The process
We’re used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. On site, the work takes well under an hour for most canopies. For a village or hamlet like Anstey, tell us about narrow lanes, gates and parking when you book.
- The filters in each canopy are measured and counted.
- An exchange schedule is agreed to suit your cooking.
- The dirty set is lifted out.
- A clean set is fitted and checked for gaps.
- We take the greasy set away and confirm the next date.
How to prepare
- Tell us the best time to work, such as after service or at a weekend
- Name a contact who can let us in at the agreed time
- Mention any parking or loading restrictions
Ask for a quote
Quoting starts with a diagnosis, 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 work begins.
Advice
How we handle grease filter exchange in Anstey
Across Anstey, our filter exchange suits restaurants, pubs, cafés, schools, care homes and other kitchens, whether there’s one canopy or many. We can come before or after service, so cooking is not interrupted. The work covers island canopies, baffle filters and restaurants and pubs, and the jobs we see most are hand-washed filters that still look greasy and gaps where filters have been removed.
In a village or hamlet like Anstey, the kitchens that need extract cleaning are normally a pub, a school, a care home or a hall kitchen, wherever there is one. Every one of them still needs its extract kept clear of grease, whatever the size of the place.
Nothing is signed off by word of mouth: a written report, dated and illustrated with photos, 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
- Anstey (SG9)
- Region
- Hertfordshire
- Records
- Written report with pictures
- Price
- A fixed quote up front
- When we work
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Nearby places to Anstey
More services for Anstey
How the job changes from site to site
The plenum
Behind the filters sits the plenum, where air gathers before the duct. It collects whatever grease the filters miss.
Canopy filter housings
The filter housing holds each filter at an angle in the canopy. If it’s bent or greasy, filters won’t seat properly.
Managing agents and facilities teams in Anstey
If you look after several sites, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so records stay tidy.
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements, and we will send a fixed quote.
Kitchen extracts in Anstey
The FSA’s data shows about 3 pubs, bars and clubs registered across Anstey and its immediate surroundings (about a mile and a half). Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. The fire and rescue service for Anstey is Hertfordshire 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. Food hygiene inspections in Anstey are the job of East Hertfordshire council’s environmental health team. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Keeping each certificate and photo report on file helps show the extract is looked after.
For schools such as Anstey First School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed.
Anstey is in Hertfordshire. Anstey 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. Across Hertfordshire, we cover 381 places, and Anstey is one of them. Chelmsford is in our area too, around 25 miles away.
We cover every part of SG9 for grease filter exchange and the roads nearby. Grease filter exchange is available to premises on Moatside and St Georges End and the roads around them. Other places close to Anstey include Daw's End (1 mile south), Great Hormead (2 miles south), Lower Green (2 miles north-east), Wyddial (2 miles south-west) and Brent Pelham (2 miles south-east). We also work in nearby towns such as Stevenage (11 miles south-west), Bishop's Stortford (9 miles south-east), Hitchin (14 miles west), Hertford (13 miles south-west), Letchworth (11 miles west) and Ware (12 miles south).
What’s near Anstey
Around Anstey, our work takes us to kitchens and buildings near The Blind Fiddler pub and the streets around them. Other landmarks nearby include Anstey Hales Farm (less than half a mile east). For a walk, there’s Hawkins Wood.
Common questions in Anstey
Which fire and rescue service is responsible for Anstey?
It’s Hertfordshire Fire and Rescue Service, which covers Anstey. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
Is Anstey within the area you cover?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
Does the report say when we need you again?
Yes. The interval depends on how much the system is used and what we find and the report sets out why.
Do you provide a certificate or report?
Yes. It’s the record insurers and inspectors ask to see: a dated report with photos, listing the work and any areas we couldn’t reach.
Are you insured?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
What is TR19?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It covers how systems are inspected, cleaned and checked and expects a risk-based approach.
Is there a survey before the work?
Yes. Photos often do the job, while bigger or harder-to-see systems are surveyed on site.
Can you give a price for filter changes?
We price it on the number of filters and the visit frequency. Tell us what you have and we’ll come back with a fixed quote, normally within one working day.
Common problems we fix in Anstey
Every fry, grill and sauté sends grease-laden vapour upwards. The filters catch much of it, and day by day they load up and airflow falls away.
Most sites get in touch after spotting one of these:
- Filters left unwashed on busy weeks
- Weak extraction at the canopy
- Filters so greasy the air can barely pass
- Filters that leave gaps in the canopy
Church and community hall kitchens, near Church of St George or anywhere around Anstey, are easy to forget, but their extracts collect grease like any other.
Before you book anyone
- How VAT is shown on the quote
- What’s included in the scope, part by part
- Whether a written report and photos are included
- When the next visit should be, and why
When it’s something else
To be straight with you, some problems need a different fix:
- A noisy or failed extract fan
- A canopy too small for the cooking beneath it
- Greasy ducts and risers that a filter change will not reach
If you are not sure, just call us on 0345 646 2711 or use the quote form and we will give you a straight answer before booking.
Parts of the system we cover
- Restaurants and pubs
- School and hospital kitchens
- Wall canopies
- Mesh filters
- Island canopies
- Baffle filters
What affects the quote in Anstey
The quote reflects the site in front of us. We take into account:
- How easy every part is to reach
- Where the site is and how we reach it
- How big the system is
- A single visit or a regular plan
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’ll have a fixed price before work begins.
Asking for a quote
Photos let us diagnose from a distance. Try to include:
- Your opening hours and when the area is out of use
- Photos showing the whole system and its surroundings
- Close-ups of filters, grilles, hatches or access panels
- Your last certificate, test record or report
The quickest way to a quote is to send photos: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Looking after it afterwards
A little care between visits keeps the system in better shape. Our advice:
- Clear anything stored on or near the canopy
- Keep the extract on whenever the range is in use
- Wipe the outside of the canopy as part of daily cleaning
- Mention it if the kitchen gets busier
Once the clean filters are in, the kitchen can cook straight away. The dirty set leaves with us to be cleaned.
Filter exchange and TR19 cleaning work best together. A maintenance plan that covers both means neither slips.