Hertfordshire · Grease filter exchange
Ayot St Peter grease filter exchange
A scheduled grease filter exchange, swapping dirty canopy filters for clean ones for commercial sites in Ayot St Peter and across Hertfordshire. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Grease building up behind the canopy filters
- Hand-washed filters that still look greasy
- Weak extraction at the canopy
About our grease filter exchange in Ayot St Peter
Cleaning filters by hand takes staff time and is easy to put off. With a filter exchange, we bring a clean set and take the dirty one away, so the canopy is never left without filters. If you have filter washing that keeps being missed and bent or damaged filters that don’t sit properly, we can help.
Work in a small place like Ayot St Peter starts with a call to agree access and timings, and the clean itself is the same full TR19® job as in any town: canopy to discharge, then a TR19® certificate and a photo report.
The sign-off is always in writing: a dated report with pictures 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
- Ayot St Peter (AL6)
- Wider area
- Hertfordshire
- Reporting
- Photo report after each visit
- Quote
- Fixed quote, typically within a working day
- Hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026

Signs you need grease filter exchange in Ayot St Peter
Hand-washed filters often come back still greasy. Grease lodges deep in baffles and mesh and a sink wash rarely reaches it.
It’s time to book a visit if you see:
- Filters left unwashed on busy weeks
- Gaps where filters have been removed
- Grease filters clogged with grease
- A canopy that drips grease
If you look after a school kitchen, at a school such as Monk's Walk School or anywhere near Ayot St Peter, the holidays are the usual time for a TR19® clean.
What to look for in a quote
- When the next visit should be, and why
- Whether the figure could change on the day
- Exactly which parts of the system are covered
- If they look at the system before pricing
Honest limits
An honest diagnosis matters more to us than a booking, so here’s what grease filter exchange will not do:
- Smell complaints that need odour control equipment
- A noisy or failed extract fan
- A canopy that doesn’t capture the vapour properly
If you’re not sure, just ring 0345 646 2711 or email us and we’ll give you a straight answer before booking.
What the work covers
- School and hospital kitchens
- Island canopies
- Wall canopies
- Mesh filters
- Baffle filters
- Restaurants and pubs
Nearby places to Ayot St Peter
Other services in Ayot St Peter
Multi-site and managed buildings
We also work for facilities teams across offices, schools and healthcare across Hertfordshire. Work can be phased by floor, building or site around the people who use them.
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side and send the paperwork to whoever needs it.
Ayot St Peter kitchens: local notes
The Food Standards Agency lists about 10 pubs and bars as registered food businesses in Ayot St Peter and the streets around it, up to about 1.5 miles out. A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. Hertfordshire Fire and Rescue Service covers Ayot St Peter. 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. It’s Welwyn Hatfield council that sends environmental health officers to food businesses in Ayot St Peter. Extraction counts as kitchen equipment, so its condition can come up on the day. A TR19® certificate and photo report after each clean gives you a record to show an inspector.
Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Ayot St Peter is Queen Elizabeth II Hospital, about 3.6 miles south-east. Volunteers running a hall kitchen near Church of St Peter, or anywhere in Ayot St Peter, may not know when the extract was last cleaned, and a grease test settles it.
Ayot St Peter is about 3 miles north-west of Welwyn Garden City, in Hertfordshire. For grease filter exchange in and around Ayot St Peter, please ring 0345 646 2711 or drop us a line for a fixed quote. Our area covers London and the South East, Ayot St Peter included. Across Hertfordshire, we cover 381 places, and Ayot St Peter is one of them. London is in our area too, about 23 miles from Ayot St Peter.
We work across AL6 for grease filter exchange and the roads nearby. If your site is just outside Ayot St Peter, we cover Ayot Green (1 mile south-east), Welwyn (1 mile north-east), Ayot St Lawrence (1 mile north-west), Monkswood (2 miles east) and Codicote Bottom (2 miles north). Within a short drive, we also cover Watford (13 miles south-west), Hemel Hempstead (11 miles south-west), Stevenage (6 miles north-east), St Albans (6 miles south-west), Welwyn Garden City (3 miles south-east) and Harpenden (5 miles west).
Around Ayot St Peter
Typical jobs here are in premises near Danesbury Park and The Red Lion pub, among other places. The nearest railway station is Welwyn North station, about 2 miles east. A little further out are Howard Centre (2.2 miles south-east) and Datchworth Museum (3.9 miles north-east). For a walk, there’s Stocking Springs Wood.
Why it’s worth doing now in Ayot St Peter
Grease dripping from the canopy is a sign the filters cannot hold any more. Left, it ends up on equipment, food areas and staff, which an EHO may well notice. In a place like Ayot St Peter, ductwork and fans are easy to forget until something goes wrong.
Combining work into one visit or one programme often makes better use of the time. Mention every system or site you need covered, and you will get one fixed quote.
Why book with us
- Evenings, overnight and weekends, plus 24/7 emergency callout
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- CHAS and SafeContractor accredited, with ISO 9001
- Fully insured
What we do, step by step
Before we leave, we walk the area with whoever is on site. Anything we couldn’t reach or that needs attention is pointed out there and then, and it goes on the report too. All told, the work takes less than an hour in most kitchens. Rural roads and tight entrances are worth telling us about before a visit to Ayot St Peter.
- We look at the canopies and the condition of the filters.
- Any damaged or missing filters are noted.
- We exchange the dirty filters for a clean set.
- The filters are checked for fit before we go.
- Anything that needs attention, such as a greasy plenum, is pointed out.
Preparing for the visit
- Make sure equipment near the work can be switched off and left to cool
- Agree a time when the area can be out of use
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
How to get a quote
Getting a quote doesn’t take long. Send a few details and photos, and we normally reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Related advice
Fixed quotes for grease filter exchange in Ayot St Peter
The survey tells us what the work involves. We look at:
- Working hours and out-of-hours timing
- Whether we need access equipment or extra panels
- One-off work versus a regular cycle
- The condition we find in the survey
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. You will have a fixed price before we start.
Helping us quote
When you call or email, it’s useful to have:
- Your opening hours and when the area is out of use
- Wide pictures of the system and the area around it
- Where the site is and what kind of site it is
- Any previous report or certificate
Every quote begins with a look at the system, either from photos and details you send or from a site visit. Then we send a fixed price so you know the cost before work begins.
Questions from Ayot St Peter
Can you get to a site in Ayot St Peter?
Yes, we work in villages as well as towns, and Ayot St Peter is covered. Let us know about access, parking and anything unusual about getting there when you book.
Can the work in Ayot St Peter be done at night or at weekends?
Yes, we can come after you close and finish before you open. Your customers, staff or residents in Ayot St Peter needn’t be disturbed. Just phone us on 0345 646 2711, or send details by email with your opening times and we will plan around them.
Can you set up regular visits?
Yes, of course. Send details of the systems and how they’re used, and we’ll suggest a schedule and quote for it.
Can damaged filters stay in the canopy?
A bent filter leaves a gap for grease. We point them out on the visit so they can be replaced.
What types of premises do you cover?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
Are you fully insured?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
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.
What should go in our maintenance log?
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.
Different parts, different methods
The plenum
The plenum is the space behind the filters. It collects whatever grease the filters miss.
School, care home and staff kitchens
For kitchens closed in the holidays, visits can be timed around term or rota so the filters are clean when cooking picks up.