Hampshire · Grease filter exchange
Grease Filter Exchange in Stonymarsh
A scheduled grease filter exchange, swapping dirty canopy filters for clean ones for businesses, landlords and public buildings in Stonymarsh. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Poor airflow through the filters
- A canopy running with filters missing
- Staff short of time to wash filters
What staff can safely do
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, which is where we come in.
Grease filter exchange in Stonymarsh
Cleaning filters by hand takes staff time and is easy to put off. An exchange service means clean filters arrive and greasy ones leave, so the canopy is never left without filters. Typical jobs include grease collecting in the filter channels and smoke and heat lingering under the hood, on baffle filters, restaurants and pubs and school and hospital kitchens.
In a small place like Stonymarsh, kitchens are often in older or extended buildings, with long single-storey duct runs, and those horizontal sections are where grease settles. We agree access and timings in advance.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we’ve been trading since 2009.
- Place
- Stonymarsh (SO51)
- Region
- Hampshire
- Records
- Report and pictures after the visit
- Price
- A fixed price before work begins
- Working hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Leave it or put it right?
Once filters are saturated, more grease gets past them. That makes the next full clean a bigger job and grease readings can rise between cleans. A fault that closes a site in a village like Stonymarsh affects everyone who depends on it.
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered, and you’ll get one fixed quote.
Why choose Duct Doctor in Stonymarsh
- Work around your opening hours, with 24/7 emergency cover
- One contact for all your sites in London and the South East
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Full insurance on every job
Questions from Stonymarsh
Do you cover smaller places like Stonymarsh?
Yes, we work in villages as well as towns, and Stonymarsh is covered. A survey first, from pictures or a visit, means we arrive with the right kit.
Do you work at weekends in Stonymarsh?
Yes, we can come after you close and finish before you open. It means the site in Stonymarsh keeps running as normal. Let us know the hours you are closed and we’ll book within them.
Can you set up regular visits?
Yes. We run scheduled maintenance contracts, set at the interval the system needs. The report from each visit recommends the next date.
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.
Will you tell us when the next visit is due?
Yes. The interval depends on how much the system is used and what we find and the report sets out why.
What happens if you cannot reach some of it?
They’re listed in the report, never skipped quietly. The report says which parts couldn’t be reached and why, and we can quote to improve the access.
How often should grease filters be changed?
The right interval depends on the kitchen. If filters are dripping or clogging before the next change, it’s too long, and we can change it.
How much does a filter exchange service cost?
Filters, canopies and how often you need visits all affect the price. Tell us what you have and we’ll come back with a fixed quote quickly.
Signs you need grease filter exchange in Stonymarsh
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.
These are the problems we see most often:
- Filters so greasy the air can barely pass
- A greasy plenum behind the filters
- Staff short of time to wash filters
- Poor airflow through the filters
Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Mottisfont Abbey is about 0.5 miles west), access may need planning.
What to look for in a quote
- What paperwork you get at the end
- Proof of insurance
- Which accreditations they hold, and whether you can check them
- What’s included in the scope, part by part
What we do, step by step
There are three stages on the day: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with pictures. The middle part takes longest, and that takes anything from a few minutes to an hour or so, depending on the number of filters. Visits to a village like Stonymarsh are booked in advance, at a time that suits whoever runs the site.
- 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.
- We tell you if the plenum or canopy needs a clean.
Preparing for the visit
- Arrange a key holder or contact on site
- Tell us about site rules, permits or sign-in
- 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: the address, the type of site and when it’s open, a few pictures and any previous report or certificate. Once you have those, ring 0345 646 2711 or use the quote form.
Read more
What grease filter exchange cannot fix
We will not sell you work that doesn’t address the problem, so here are the limits:
- Cooking smells reaching neighbours, which need odour control
- A canopy too small for the cooking beneath it
- Grease behind the filters that a swap can’t remove
Not sure which it is? You can phone us on 0345 646 2711, or send details by email and we will tell you honestly before booking.
Where we work
- Restaurants and pubs
- Island canopies
- Baffle filters
- Wall canopies
- School and hospital kitchens
- Mesh filters
Grease filter exchange around Stonymarsh
Food Standards Agency data counts about 4 cafés, restaurants and staff canteens across Stonymarsh and its immediate surroundings (about a mile and a half). Any of those kitchens with a canopy relies on its filters to catch grease before it reaches the duct. Food hygiene inspections in Stonymarsh are the job of Test Valley council’s environmental health team. They look at how clean the premises and equipment are, and the kitchen extract is part of that. A TR19® certificate and photo report after each clean gives you a record to show an inspector. Hampshire and Isle of Wight Fire and Rescue Service covers Stonymarsh. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
If you run a church or community hall kitchen, near Church of St Andrew or elsewhere in Stonymarsh, its extract still collects grease from every lunch and event. A hospital like Romsey Community Hospital, about 3.7 miles south-east, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
Stonymarsh is about 4 miles north-west of Romsey, in Hampshire. If you need grease filter exchange in Stonymarsh, please call us on 0345 646 2711 or email us for a fixed quote. We work across South East England and London, including Stonymarsh. Stonymarsh is one of 683 towns, villages and districts in Hampshire we cover for grease filter exchange. Our Southampton page covers sites nearby (10 miles or so).
All of SO51 is covered for grease filter exchange, from the main roads to the quietest streets. Neighbouring places we cover for grease filter exchange include Mottisfont (1 mile west), Michelmersh (1 mile south-east), Kimbridge (1 mile south-west), Dunbridge (1 mile south-west) and Timsbury (1 mile south-east). We also work in nearby towns such as Winchester (9 miles east), Eastleigh (9 miles south-east), Andover (12 miles north), Totton (8 miles south), Chandler's Ford (7 miles south-east) and Hedge End (13 miles south-east).
What’s near Stonymarsh
Typical jobs here are in premises near The Bear And Ragged Staff Public House, among other places. The closest station to Stonymarsh is Mottisfont & Dunbridge station, about 1.1 miles west. Other landmarks nearby include Romsey Community Hospital (3.7 miles south-east) and King Johns House (3.5 miles south). Not far away are Emer Bog and Baddesley Common.
Places near Stonymarsh
Also in Stonymarsh
Landlords, agents and facilities managers
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 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.
Keeping the system healthy
So the system stays in good health:
- Make sure no filter is left out
- Do not refit a filter that’s bent
- Keep filter exchange and TR19 cleaning on the same plan
- Never cook with the extract switched off
The canopy looks cleaner and the air moves better from the moment they’re fitted. Keep the extract running while you cook so the filters do their job.
Clean filters plus regular full cleans keep the system in good health. A maintenance plan that covers both means neither slips.