Hampshire · Ductwork cleaning
Ductwork cleaning in Four Marks, Hampshire
Ductwork cleaning across Four Marks and nearby, booked around your opening hours and finished with a written report and photos.
- A rancid smell from the extract duct
- Ductwork that has never been cleaned
- Thick deposits at the bottom of a vertical duct
Ductwork cleaning in Four Marks
Each extract duct we take on in Four Marks goes through the full routine: we test the grease first, remove thick deposits by hand and degrease what’s left. Readings are taken again afterwards and pictures go into your report. Common call-outs are for thick crusts of old grease along the duct and readings above 200 microns from a grease thickness test, on bends and junctions, multi-storey ducts and horizontal duct runs.
Around a smaller place like Four Marks, kitchen extracts tend to belong to pubs, cafés, takeaways and school or care home kitchens. A kitchen that cooks fewer hours still builds up grease, so cleaning is planned around how much it cooks and what the readings show.
Good records are part of the job. 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. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.
- Place
- Four Marks (GU34)
- Region
- Hampshire
- Paperwork
- Certificate plus before-and-after pictures
- Quotes
- A fixed price before any work starts
- Hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Managing agents and facilities teams in Four Marks
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we’ll come back with a fixed quote.
Places near Four Marks
What else we do in Four Marks
What ductwork cleaning looks like in Four Marks
Four Marks, about 49 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site. In Four Marks, food businesses are inspected by environmental health officers from East Hampshire council. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Keeping each certificate and photo report on file helps show the extract is looked after.
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Alton Community Hospital is the nearest hospital to Four Marks, about 3.3 miles north-east. School kitchens, at schools like Four Marks Church of England Primary School for example, are typically cleaned in the holidays so no lunches are lost.
Four Marks is about 4 miles south-west of Alton, in Hampshire. We provide ductwork cleaning for businesses, landlords and public buildings in Four Marks and the rest of Hampshire. We cover 683 places across Hampshire, from busy centres to quieter spots. For sites nearby, see our Southampton page (20 miles or so).
Every address in GU34 is covered for ductwork cleaning, from busy streets to back roads. Whether your site is on Read's Field, River Close and Chalk Close or anywhere close by, our technicians can take on the work. Neighbouring places we cover for ductwork cleaning include Medstead (1 mile north), Soldridge (1 mile west), South Town (2 miles north-west), New Copse (2 miles north) and Hattingley (2 miles north-west). Larger places within reach include Basingstoke (11 miles north), Winchester (12 miles west), Fleet (15 miles north-east), Horndean (14 miles south), Alton (4 miles north-east) and Petersfield (9 miles south-east).
Landmarks near Four Marks
The closest station to Four Marks is Alton station, about 4.6 miles north-east of the centre. Well-known places in the area include Barton Castle (3.5 miles north-west) and Alton Community Hospital (3.3 miles north-east). For a walk, there’s Red Hill.
Keeping the system healthy
Results last longer with the right care. We suggest:
- Run the extract fan throughout service
- Diarise the next duct clean
- Tell us if grease leaks from the ductwork
- Check readings when the menu changes
The report names every part of the duct that couldn’t be reached, with the reason. We can fit access panels so those sections are cleaned next time.
Extra access panels mean more of the duct gets cleaned each time. It does not stop grease forming, but it stops it building unseen.
What staff can safely do
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, which is where we come in.
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.
What ductwork cleaning cannot fix
A few issues sit outside what this work can do:
- Duct sealed behind fixed ceilings or walls
- A worn-out fan that needs replacing
- Ductwork that is corroded, split or holed (that needs a ductwork contractor)
If you’re not sure, just call 0345 646 2711, or email photos and we will give you a straight answer before booking.
Parts of the system we cover
- Horizontal duct runs
- Vertical risers
- Attenuators
- Multi-storey ducts
- Bends and junctions
- Access panels
Common problems we fix in Four Marks
Many ducts do not have enough access panels. Sections between panels go uncleaned, sometimes since the system was installed, and the grease there keeps building out of sight.
Clients normally contact us when they notice something like this:
- Sections of duct with no access panels
- A grease test showing the duct is overdue
- A duct clean needed for an insurer
- Grease seeping out of the duct seams
Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Bentworth Hall is about 2.7 miles north), access may need planning.
Questions to ask before you book
- Whether VAT is included
- Whether the price is fixed
- How areas they can’t reach will be recorded
- What’s included in the scope, part by part
What we do, step by step
Every visit runs to the same pattern: protect the area, isolate whatever needs isolating, do the work, tidy up and hand over the paperwork. On site, the work takes anything from a few hours to several visits, depending on the length of duct. Because the survey comes first, a visit to Four Marks can typically be finished without a second trip.
- We map the duct route and check where the access panels are.
- Grease readings are taken at set points along the duct.
- Access panels are opened and heavy deposits scraped out by hand.
- Horizontal runs and risers are then degreased by the method that suits the deposit.
- Readings and photos are repeated and any section we couldn’t reach is recorded.
How to prepare
- Arrange a key holder or contact on site
- Mention any parking or loading restrictions
- Tell us about site rules, permits or sign-in
How to get a quote
We don’t publish a price list, because no two systems are the same. We look at your system first, from photos or on a visit, then send a fixed quote. To start, call us on 0345 646 2711 or email us.
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Questions from Four Marks
Who carries out food hygiene inspections in Four Marks?
Food hygiene inspections in Four Marks are carried out by East Hampshire council. It helps to keep the extract cleaning records with your food safety paperwork, so they’re ready if asked for.
Which fire service covers Four Marks?
Four Marks is in the area of Hampshire and Isle of Wight Fire and Rescue Service. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
What’s TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
What shows that the ducts need a clean?
We measure it. Readings are taken by Wet Film Thickness Test (WFTT) or Deposit Thickness Test (DTT). A mean above 200 microns, or 500 microns at any point, means it’s due.
How much does ductwork cleaning cost in Four Marks?
We don’t publish prices, because the cost depends on the job: how big it is, what state it’s in, how we reach it and the working hours. You get a fixed price before work begins.
What if parts of the system can’t be reached?
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.
Are you fully insured?
Yes. We carry full insurance and have been trading since 2009.
Which sectors do you work in?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, plus food production and leisure sites.
Part by part
Attenuators and discharge
Some systems have attenuators to reduce noise, and their linings can soak up grease. They’re cleaned where possible and recorded if not.
Vertical risers
Risers carry the extract up through the building to the roof. Grease collects on the walls and at the foot of the riser, which is one of the points we test.