Hertfordshire · Grease filter exchange
Grease Filter Exchange in Chorleywood West
For grease filter exchange in Chorleywood West, one call is all it takes: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Grease filters clogged with grease
- Filters that leave gaps in the canopy
- A greasy plenum behind the filters
Grease filter exchange for kitchens and businesses in Chorleywood West
Grease filters are the first line of defence in a kitchen extract. They catch grease before it reaches the plenum and ductwork and they do it best when they’re clean. With grease filter exchange, clean filters replace greasy ones at regular intervals. Common call-outs are for poor airflow through the filters and filter washing that keeps being missed, across baffle filters, restaurants and pubs and mesh filters.
In a village or hamlet like Chorleywood West, the kitchens that need extract cleaning are typically 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.
The paperwork matters as much as the work. You get a written report with photos after every visit, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Where
- Chorleywood West (WD3)
- Wider area
- Hertfordshire
- Records
- Photo report after every visit
- Price
- A fixed price before we start
- When we work
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
The process
When we arrive, we check the system against the survey or the photos you sent. If anything is different, we talk it through with the person on site before carrying on. From there, it takes anything from a few minutes to an hour or so, depending on the number of filters. If the van will struggle with a lane or gateway near Chorleywood West, let us know and we will 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.
- The dirty filters leave with us and the next visit is booked.
Before we arrive
- Mention any sign-in, permit or induction we need
- Make sure equipment near the work can be switched off and left to cool
- Dig out any earlier paperwork for the system
How to get a quote
For grease filter exchange in Chorleywood West, call 0345 646 2711 or send us an email. Let us know the site type and the opening hours, plus pictures or the previous report if they’re to hand. We typically send a fixed quote within one working day.
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Also near Chorleywood West
Also in Chorleywood West
Honest limits
It’s worth knowing the limits before booking:
- Extraction problems caused by the fan rather than the filters
- A canopy that needs a proper clean
- Greasy ducts and risers that a filter change will not reach
Not sure which it is? You can call us on 0345 646 2711, or send details by email and we will tell you honestly.
Where we work
- School and hospital kitchens
- Restaurants and pubs
- Island canopies
- Baffle filters
- Wall canopies
- Mesh filters
Grease filter exchange around Chorleywood West
Food Standards Agency records list about 38 restaurants, cafés and canteens and about 20 sandwich bars and takeaways within about 1.5 miles of central Chorleywood West. Swapping filters on a schedule keeps kitchens like these drawing air properly. Food hygiene inspections in Chorleywood West are the job of Three Rivers 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. Fire safety in Chorleywood West falls to 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.
If you look after a school kitchen, at a school such as Arnett Hills Junior Mixed and Infant School or anywhere near Chorleywood West, the holidays are the usual time for a TR19® clean. If you run a church or community hall kitchen, near Church of St Peter or elsewhere in Chorleywood West, its extract still collects grease from every lunch and event. A hospital like Bishops Wood Hospital, about 2.8 miles south-east, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
Chorleywood West is about 1 mile east of Chorleywood, in Hertfordshire. Across the WD3 area, we can carry out grease filter exchange at your premises. Chorleywood West is one of 381 places in Hertfordshire where we work for commercial clients. Our London page covers sites nearby (20 miles or so).
Our technicians cover all of WD3 for grease filter exchange and the streets around it. Local streets include Chess Lane, Valley Road and Sarratt Lane, and we cover them all for grease filter exchange. Close by, we work in Loudwater (1 mile north), Rickmansworth (1 mile south-east), Mill End (1 mile south-west), Croxley Green (2 miles east) and Micklefield Green (2 miles north). We also work in nearby towns such as Watford (4 miles east), Hemel Hempstead (7 miles north), St Albans (10 miles north-east), Harpenden (13 miles north-east), Hatfield (13 miles north-east) and Borehamwood (9 miles east).
Near you in Chorleywood West
Around Chorleywood West, our work takes us to kitchens and buildings near Rickmansworth Park, York House School and Saint Joan of Arc Catholic School. For rail, the closest station is Rickmansworth station, about 0.8 miles south-east of the centre. Well-known places in the area include Bishops Wood Hospital (2.8 miles south-east) and Charter Place (3.7 miles east). Open spaces near Chorleywood West include Chorleywood Common and Tumbling Bay.
Chorleywood West questions
Can the work in Chorleywood West be done at night or at weekends?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Chorleywood West needn’t be disturbed. Just call 0345 646 2711, or email photos with your opening times and we will plan around them.
Which environmental health team covers Chorleywood West?
Kitchens in Chorleywood West are inspected by Three Rivers council’s environmental health officers. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
Is filter exchange enough instead of a full extract clean?
No. The rest of the system still collects grease at the right interval.
How do you protect the area?
Protection goes down first: floor sheeting and covers over nearby surfaces and equipment. We tidy up and take our waste away before we leave.
Where do the greasy filters go?
We take them away. That is how an exchange works: clean filters in, dirty ones out and nothing greasy left on site.
What types of premises do you cover?
Any commercial site with kitchens or ventilation, from a single café to a large school. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
How long does the visit take?
On site, it takes well under an hour for most canopies. Larger systems naturally take longer, and we’ll tell you what to expect.
What if parts of the system cannot be reached?
The report shows them clearly. In ductwork, new access panels are often the answer, and we can fit those.
Looking after it afterwards
A little care between visits keeps the system in better shape. We recommend:
- Don’t let the full clean slip because filters are changed
- Never leave gaps in the filter bank
- Tell us if the menu or opening hours change
- Wipe the outside of the canopy as part of daily cleaning
If the plenum behind the filters looks greasy, we say so. That might mean bringing a TR19® clean forward, and we can arrange it.
Dripping filters are a clear sign they’re full. Changing them now reduces the fuel above the cooking and the plenum may need a clean as well.
Leave it or put it right?
Dripping canopies and greasy smells often start with the filters. Drips land on surfaces and equipment below, which an EHO may well notice. Systems in rural buildings are often out of sight and out of mind.
One small site or a whole estate, the quote is built the same way: the work involved, the access and the timing. The price is fixed before we start.
Why choose Duct Doctor in Chorleywood West
- Ventilation hygiene specialists since 2009
- One contact for all your sites in London and the South East
- Accredited under CHAS and SafeContractor, with ISO 9001
- Photo reports with every job
See what affects the cost and our accreditations.
Part by part
Mesh filters
Mesh filters use layers of metal mesh to trap grease. In a busy kitchen, mesh soon blocks and need frequent attention.
Baffle filters
Baffle filters use overlapping metal blades that force the air to change direction. Grease is thrown out of the airstream and collects on the baffles.
What your team can do, and what needs us
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We can diagnose it and quote.
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
What affects the cost of grease filter exchange
Sites vary more than people expect. The main factors:
- A single visit or a regular plan
- The size of the system
- The condition of the system
- Working hours and out-of-hours timing
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, which can make the next visit longer. If you’re not sure what’s needed, call 0345 646 2711 or email us for straight advice and a fixed quote.
Helping us quote
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- Close-ups of filters, grilles, hatches or access panels
- Any symptoms, from odd noises to smells or leaks
- Any previous report or certificate
- When the site is open and when it’s quiet
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, you get a fixed price before we start.