Hertfordshire · Grease filter exchange
Grease filter exchange in High Cross, Hertfordshire
Grease filter exchange in High Cross from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Blocked baffle filters
- Missing filters in the filter bank
- Drips falling from the filters onto equipment
FAQs for High Cross
Which council inspects kitchens in High Cross?
In High Cross, it’s East Hertfordshire council that carries out food hygiene inspections. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
Who is the fire and rescue service for High Cross?
High Cross is in the area of Hertfordshire Fire and Rescue Service. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
Does a filter exchange disrupt service?
Visits are short, and we can come before or after service. There’s no wait between removing and refitting.
Do you provide a certificate or report?
Yes. Every visit ends with a written report and pictures, covering the work, any areas we couldn’t access and the recommended next date. Where the work is a TR19® Grease clean, there’s also a certificate issued through the BESCA Vent Hygiene Elite portal.
Can damaged filters stay in the canopy?
A bent filter leaves a gap for grease. We point them out on the visit and explain what’s needed.
What accreditations do you have?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
Do you offer maintenance contracts?
Yes. We run scheduled maintenance contracts, set at the interval the system needs. The report from each visit recommends the next date.
Can you look after several sites?
Yes. Our area covers London and the South East, so we can schedule a run of sites on one programme. Each site gets its own report and pictures.
Grease filter exchange in High Cross
Filter exchange sits between full TR19® cleans. Clean filters reduce the grease reaching the ducts though vapour still carries some grease past them. That is why the whole system still needs cleaning to TR19 at the right interval. We are often asked to deal with filters so greasy the air can barely pass and grease collecting in the filter channels, across baffle filters, restaurants and pubs and school and hospital kitchens.
For a kitchen in or near High Cross, the visit is planned around opening hours and the journey, 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.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.

- Location
- High Cross (SG11)
- Wider area
- Hertfordshire
- Reporting
- Written report with pictures
- Quote
- A fixed price before work begins
- Hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Checked
- 30 October 2026
When something else is needed
In fairness, some problems need a different fix:
- Cooking smells reaching neighbours, which need odour control
- Extraction problems caused by the fan rather than the filters
- A canopy too small for the cooking beneath it
If in doubt, give us a ring on 0345 646 2711 or use the quote form and we’ll say what we think before you book.
What we work on in High Cross
- Island canopies
- Baffle filters
- Restaurants and pubs
- School and hospital kitchens
- Wall canopies
- Mesh filters
Different parts, different methods
Mesh filters
Older or smaller canopies often use mesh filters. We exchange them on the same basis as baffles.
School, care home and staff kitchens
Kitchens that cook for set mealtimes still load their filters, though often more slowly.
For landlords and multi-site operators
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party, and the report can go to both.
Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept to a regular schedule.
What affects the quote in High Cross
Sites vary more than people expect. What affects the quote:
- One-off work versus a regular cycle
- Where the site is and how we reach it
- The size of the system
- Whether several sites go on one quote
Combining work into one visit or one programme can make for a more efficient booking. Mention every system or site you need covered and we’ll price it together.
Asking for a quote
You do not need the technical terms. It helps if you can send:
- Your opening hours and when the area is out of use
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- The paperwork from the last visit, if you have it
- The postcode and the type of business
Every quote begins with a look at the system, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work so you know the cost before we start.
What happens on the day
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. Most of the time goes on the work itself, which takes less than an hour in most kitchens. If you can send pictures, we can arrive in High Cross knowing what to expect.
- We record the number, size and type of your filters.
- An exchange schedule is agreed to suit your cooking.
- 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
- Mention any sign-in, permit or induction we need
- Clear loose items from the work area
- Make sure equipment near the work can be switched off and left to cool
How to get a quote
Here’s what helps us quote: where the site is, what it is and its opening hours, pictures of the system and any previous report or certificate. Then call 0345 646 2711 or send us an email.
Advice
Towns and villages near High Cross
More services for High Cross
High Cross kitchens: local notes
At about 24 miles from central London, High Cross sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site. Hertfordshire Fire and Rescue Service covers High Cross. 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.
Bursars and site managers at schools such as Thundridge Church of England Primary School tend to book extract cleaning for when the kitchen is empty. If you run catering at a healthcare site, such as a hospital like Hertford County Hospital about 4.6 miles south-west, the extract may need cleaning more often than a part-time kitchen.
High Cross is about 2 miles north of Ware, in Hertfordshire. Whether your site is in the middle of High Cross or further out, we cover grease filter exchange for every kind of premises, from small sites to large estates. High Cross is one of 381 towns, villages and districts in Hertfordshire where we work for grease filter exchange. Our Chelmsford page covers sites nearby (23 miles or so).
We cover every part of the SG11 postcode area for grease filter exchange and the roads nearby. We cover sites on North Drive, Chestnut Grove and Poplar Close and the roads around them. We also cover Wadesmill (1 mile south-west), Standon Green End (1 mile north), Thundridge (1 mile south), Cold Christmas (1 mile south-east) and Barwick (1 mile north-east). Within a short drive, we also cover Stevenage (8 miles north-west), St Albans (15 miles south-west), Bishop's Stortford (8 miles east), Welwyn Garden City (8 miles south-west), Harpenden (14 miles west) and Hitchin (13 miles north-west).
What’s near High Cross
We work in commercial kitchens and buildings around The White Horse Inn, among other places. High Cross’s nearest station is Ware station, roughly 2.8 miles south. Well-known places in the area include Museum of Street Lighting (3.4 miles south) and Hertford County Hospital (4.6 miles south-west). Green spaces nearby include King's Meads.
What happens if it’s left?
Clogged filters choke the extract. Heat and fumes hang in the kitchen, and the fan works harder to pull air through. Keeping filters clean keeps the extract working properly. Equipment tucked in a roof space or outbuilding near High Cross rarely gets looked at unless someone books it.
No two sites are the same, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all make a difference.
Why us?
- CHAS, SafeContractor and ISO 9001
- Every job surveyed first
- A written report with photos after each visit
- A fixed price before any work starts
Read how cleaning jobs are priced or our accreditations and certificates.
Common problems we fix in High Cross
However long the kitchen cooks each day, the filters see every minute of it. Heavy daily use means fast build-up so changes need to come round sooner.
The symptoms we are asked about most are:
- Missing filters in the filter bank
- A greasy plenum behind the filters
- A canopy that drips grease
- Grease filters clogged with grease
Where a hall near Church of St John the Evangelist, or anywhere in High Cross, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
What your quote should include
- Whether inaccessible sections are listed on the report
- Whether a written report and pictures are included
- When they can work, and whether that is outside your opening hours
- What’s included in the scope, part by part