Isle of Wight · Grease filter exchange
Grease filter exchange in Thorncross, Isle of Wight
A scheduled grease filter exchange, swapping dirty canopy filters for clean ones for businesses, landlords and public buildings in Thorncross. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Grease left in baffles after washing
- Missing filters in the filter bank
- Damaged filters letting grease past
Keeping the system healthy
After the visit, a few habits help the work last:
- Keep the extract on whenever the range is in use
- Keep filter exchange and TR19 cleaning on the same plan
- Look out for drips from the canopy
- Clean the canopy surfaces regularly
There’s no waiting: the canopy is ready as soon as the clean set is fitted. The dirty set leaves with us to be cleaned.
A kitchen that’s getting busier needs its filters changed more often. Adjusting the schedule now prevents a build-up in the ducts.
Grease filter exchange in Thorncross, done properly
An exchange visit in Thorncross doesn’t take long. The greasy filters come out, clean ones go in and make sure there are no gaps between them. If something looks wrong, we tell you. Typical jobs include a canopy running with filters missing and blocked baffle filters, on school and hospital kitchens, wall canopies and mesh filters.
Rural kitchens often have long, low duct runs through a roof space or along an outside wall, where grease settles in the flat sections. Access, parking and timings are agreed before the day.
Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Place
- Thorncross (PO30)
- Wider area
- Isle of Wight
- Records
- Photo report after every visit
- Price
- A fixed price before any work starts
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
What we do, step by step
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. A quick note on how to find the site and where to park makes a visit to Thorncross run smoothly.
- First, we check the canopies and the filters in them.
- Any damaged or missing filters are noted.
- Greasy filters are swapped for clean ones.
- The filters are checked for fit before we go.
- We tell you if the plenum or canopy needs a clean.
Preparing for the visit
- Let us know about permits to work or site inductions
- Arrange a key holder or contact on site
- Mention any locked doors, roof access or ceiling voids
How to get a quote
Quoting starts with a diagnosis, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price so you know the cost before work begins.
Related advice
How we price grease filter exchange
We do not publish a price list, because sites vary so much. The quote depends on:
- Any permits to work or inductions
- A single visit or a regular plan
- The number of sites or systems
- How easy every part is to reach
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we will explain each part.
What we need to know
What to send for a quote:
- Any previous report or certificate
- A few general shots of the system
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Any access panels or hatches you can see
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 pictures, get a survey first. Either way, the quote is fixed before any work is booked.
What the work involves, part by part
Mesh filters
Older or smaller canopies often use mesh filters. We exchange them on the same basis as baffles.
Canopy filter housings
Every exchange includes a check of how the filters sit, because gaps let grease through.
In-house cleaning or a specialist?
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
When to call us in Thorncross
Filters get bent and damaged with handling. Damaged filters don’t sit flush, leaving gaps for grease to slip through.
What we’re most often called out for:
- Filters that leave gaps in the canopy
- Grease left in baffles after washing
- Missing filters in the filter bank
- Filters left unwashed on busy weeks
A hall kitchen that only cooks for events, whether near St. Mary's Church or elsewhere in Thorncross, still needs its extract cleaned, just less often.
What your quote should include
- Which accreditations they hold, and whether you can check them
- What hours they’ll be on site
- How areas they cannot reach will be recorded
- Exactly which parts of the system are covered
Also near Thorncross
What else we do in Thorncross
Common questions in Thorncross
Who is the fire and rescue service for Thorncross?
Thorncross is in the area of Hampshire and Isle of Wight Fire and Rescue Service. Records of extract cleaning are a sensible thing to have ready if a fire safety officer carries out an audit.
Does coastal air change anything about grease filter exchange in Thorncross?
Yes, to a degree: at about 1 mile from the coast, Thorncross gets salt-laden air that corrodes metal faster. Corroded fixings and housings are noted on the report so they can be dealt with.
Do you recommend a next date?
Yes. The recommended date is on the report. For kitchen extracts, BESA’s minimum intervals run from every 3 months for heavy use to every 12 months for light use, while fire dampers are tested at least annually.
Can you come out in an emergency?
Yes, any time. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we’ll advise on what to do next.
What if some of our filters are damaged?
A bent filter leaves a gap for grease. We point them out on the visit and explain what’s needed.
Do I get a report after the visit?
Yes, always. It’s a dated, written report with photos, and TR19® Grease cleans come with a certificate through the BESCA VHE portal. File it with your fire safety records.
What happens if you cannot reach some of it?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, which we can install.
Are you fully insured?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
What grease filter exchange looks like in Thorncross
The coast is only about 1 mile from Thorncross. Near the sea, the fan and discharge at the top of a kitchen extract corrode faster than they would inland. The fire and rescue service for Thorncross is Hampshire and Isle of Wight 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. Environmental health officers from Isle of Wight council inspect food businesses in Thorncross. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Before-and-after photos from each clean are a simple way to show the extract is in hand.
If your kitchen is in a listed or historic building, like the houses around Thorncross (Wolverton Manor is about 1 mile north-east), fitting access panels needs care. For schools such as Brighstone Church of England Aided Primary School, kitchen extract cleaning is usually booked for the holidays, when the canteen is closed.
Thorncross is about 6 miles south-west of Newport, in the Isle of Wight. Sites in Thorncross 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 the Isle of Wight coverage runs to 125 places, and Thorncross is one of them. There’s also a page for Portsmouth, about 18 miles away.
Our technicians cover all of the PO30 postcode area for grease filter exchange and the roads nearby. Close by, we work in Brighstone (1 mile north-west), Moortown (1 mile north-west), Shorwell (1 mile north-east), Little Atherfield (2 miles south-east) and Atherfield Green (2 miles south-east). Within a short drive, we also cover Newport (6 miles north-east), Ryde (11 miles north-east), Cowes (9 miles north), Sandown (10 miles east), Shanklin (9 miles east) and Ventnor (8 miles east). For island and remote sites, a little more planning is needed, so let us know when you get in touch.
Around Thorncross
Locally, jobs take us to businesses close to The Countryman pub. Well-known places in the area include Whitecroft Hospital (4.4 miles north-east) and The Dinosaur Farm Museum (0.5 miles south-east). The countryside around Thorncross includes Brighstone Down.
What happens if it’s left?
For any kitchen in Thorncross, filters cannot stand in for a full TR19 clean. But clean filters do help the system between cleans and the canopy and plenum stay cleaner. Out of sight is the usual reason a rural system goes too long without attention.
Working hours, access and the scale of the site can all change the price. Each of those is built into the quote, and the price is fixed before any work starts.
Why choose Duct Doctor in Thorncross
- Photo reports with every job
- Survey first, then a fixed quote
- Fixed quotes, typically within one working day
- One contact for all your sites in London and the South East
Read our cost guide and our accreditations.