Surrey · Grease filter exchange
Bisley grease filter exchange
Our technicians work in Bisley on grease filter exchange. Out-of-hours visits, a fixed quote and a written report with photos on every job.
- Filters left unwashed on busy weeks
- Missing filters in the filter bank
- Bent or damaged filters that do not sit properly
What we do, step by step
We turn up at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool first, and floors and nearby surfaces are sheeted. On site, it takes anything from a few minutes to an hour or so, depending on the number of filters. In a smaller place like Bisley, parking is rarely the issue, but tell us about gates, roof access and opening hours.
- The filters in each canopy are measured and counted.
- An exchange schedule is agreed to suit your cooking.
- On each visit, we remove the greasy filters.
- Clean filters go in and we check they sit snugly.
- The dirty filters leave with us and the next visit is booked.
How to prepare
- Arrange a key holder or contact on site
- Clear loose items from the work area
- Find the previous report, if there is one
Getting a quote
There’s no standard price list, because every site is different. We look at your system first, from pictures or on a visit, then send a fixed quote. To get going, give us a ring on 0345 646 2711 or send us an email.
Advice
Grease filter exchange in Bisley, done properly
The filters in the canopy are the first thing cooking vapour meets. Their job is to stop grease getting further into the system, but only while they’re reasonably clean. With grease filter exchange, clean filters replace greasy ones at regular intervals. Typical jobs include a canopy that drips grease and filters that come out of the sink still dirty, across island canopies, restaurants and pubs and school and hospital kitchens.
Around a smaller place like Bisley, kitchen extracts tend to belong to pubs, cafés, takeaways and school or care home kitchens. Quieter kitchens still collect grease in the duct, just more slowly, so cleaning is planned around how much it cooks and what the readings show.
Duct Doctor has been trading since 2009, as 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
- Bisley (GU24)
- Region
- Surrey
- Reporting
- Written report with pictures
- Quotes
- Fixed quote, normally within a working day
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
What we’re called out for in Bisley
Filters get bent and damaged with handling. Damaged filters do not sit flush and grease passes round them.
The symptoms we’re asked about most include:
- Filters that leave gaps in the canopy
- Grease building up behind the canopy filters
- Weak extraction at the canopy
- Grease left in baffles after washing
If you run a church or community hall kitchen, near Church of St John the Baptist or elsewhere in Bisley, its extract still collects grease from every lunch and event.
Questions to ask before booking
- What happens if part of the system cannot be accessed
- Whether they’re fully insured
- What hours they’ll be on site
- How VAT is shown on the quote
What affects the cost of grease filter exchange
A fixed price needs a few facts first. We check:
- What state the system is in
- Access, including roofs, risers and ceiling voids
- Parking and loading at the site
- Site requirements such as sign-in and permits
When the work has to happen, how we reach it and how big the site is can all change the price. We take each of them into account, and the price is fixed before work begins.
Helping us quote
When you call or email, these details help:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- The times we could work without disrupting the site
- Close-ups of filters, grilles, hatches or access panels
- Any previous report or certificate
Need a price for grease filter exchange? Please ring 0345 646 2711 or drop us a line with a few details about the site. We will explain what we’d do and send a fixed quote before you commit to anything.
Part by part
Busy restaurant and pub kitchens
When service is non-stop, filters get forgotten. An exchange service takes it off the rota.
The plenum
The plenum is the space behind the filters. Grease that gets past the filters settles there.
Honest limits
To be straight with you, there are a few things this work will not fix:
- Smell complaints that need odour control equipment
- Extraction problems caused by the fan rather than the filters
- Grease already built up in the ductwork, which needs a full TR19 clean
Not sure which it is? You can call 0345 646 2711 or send us an email and we will tell you honestly before you book.
Parts of the system we cover
- Restaurants and pubs
- Mesh filters
- Island canopies
- Baffle filters
- School and hospital kitchens
- Wall canopies
Between visits
To keep the system working properly between visits:
- Don’t refit a filter that’s bent
- Mention it if the kitchen gets busier
- Never leave gaps in the filter bank
- Make sure we can reach the canopy on exchange day
Your next visit is scheduled before we leave. If cooking increases, we can change filters more often to match.
Filters that are left too long stop protecting the system. Getting onto a regular exchange now keeps grease out of the plenum and ductwork until the next TR19 clean.
Other services in Bisley
What happens if it’s left?
In Bisley, as everywhere, a filter service isn’t a substitute for TR19 cleaning. They do help keep the system in better shape between cleans, and that shows when the next clean comes round. It’s easy to lose track of when the work was last done on a quieter site.
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we’ll explain each part.
Why us?
- Every job surveyed first
- In business since 2009
- Work around your opening hours, with 24/7 emergency cover
- A fixed price before any work starts
Read our cost guide and our accreditations and certificates.
Grease filter exchange around Bisley
There are about 15 restaurants, cafés and canteens and about 8 takeaways and sandwich shops across Bisley and its immediate surroundings (about a mile and a half), according to the Food Standards Agency’s register. Where they cook under a canopy, the grease filters are the first line of defence and clog quickly. Bisley is covered by Surrey 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. Kitchens in Bisley get their food hygiene inspections from Surrey Heath council. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. A TR19® certificate and photo report after each clean gives you a record to show an inspector.
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Brookwood Hospital is the nearest hospital to Bisley, about 1.1 miles south-east. School kitchens, at schools like Bisley CofE Primary School for example, are normally cleaned in the holidays so no lunches are lost.
Bisley is about 3 miles west of Woking, in Surrey. Sites in Bisley get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with photos. Our Surrey coverage runs to 395 places, and Bisley is one of them. You can also see our page for Guildford, roughly 6 miles from Bisley.
Our technicians cover all of the GU24 postcode area for grease filter exchange and the streets around it. That includes premises on Hawthorn Way, Germander Drive and Wilcot Close and the roads around them. Bisley is on the A322, so it’s easy for us to get to for grease filter exchange. Other places close to Bisley include Lucas Green (1 mile north-west), West End (1 mile north), Knaphill (1 mile south-east), Sheet's Heath (1 mile south) and Penny Pot (1 mile north-east). Larger places within reach include Guildford (6 miles south-east), Woking (3 miles east), Camberley (4 miles west), Farnham (11 miles south-west), Egham (8 miles north-east) and Walton-on-Thames (11 miles east).
What’s near Bisley
In Bisley, that means kitchens and buildings near Gordon's School, Bisley and West End Commons and The Crown pub. Bisley’s nearest station is Brookwood station, about 1.6 miles south. A little further out are The Peacocks (3.3 miles east) and The Museum of The National Rifle Association (1.4 miles south-west). For a walk, there’s Brookwood Lye.
Common questions in Bisley
Do you do school kitchen extract cleaning in Bisley in the summer holidays?
Yes. Half-terms and the summer break are the natural time for school work. There are about 5 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Bisley. Just call us on 0345 646 2711 or send us an email with your term dates and we will plan around them.
Who inspects food businesses in Bisley?
In Bisley, it’s Surrey Heath council that carries out food hygiene inspections. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.
Can we skip TR19 cleans if the filters are changed regularly?
No. The rest of the system still collects grease at the right interval.
Where do the greasy filters go?
The greasy set leaves with us for cleaning and your staff do not have to deal with them. A clean set is fitted in their place.
What happens to the waste?
We take it away when we go. During the work, it’s contained so the area stays clean.
Do you have a 24/7 line?
Yes, any time. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line and we’ll talk you through the next steps.
Can damaged filters stay in the canopy?
We check every filter at each visit. We tell you about any that are damaged since a poor fit lets grease past.
What’s the right interval for changing filters?
It varies from kitchen to kitchen. We look at your cooking and set an interval to match and can change if your kitchen gets busier.