Portsmouth · Ductwork cleaning
Ductwork Cleaning in Cosham
Ductwork cleaning in Cosham, surveyed first and signed off with a written report and pictures. Ask us for a fixed quote.
- A grease test showing the duct is overdue
- Fat dripping from the ductwork
- Smells of old cooking grease from the ductwork
What happens if it’s left?
Old grease in a duct for a kitchen in Cosham does not stay soft. It bakes into a hard layer that takes far longer to remove, so the later the clean, the bigger the job. Booking ahead lets us plan the trip to Cosham at a time that suits you.
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. You’ll have a fixed price before we start.
Why Cosham businesses choose us
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- CHAS and SafeContractor accredited, with ISO 9001
- Trading since 2009
- Fixed quotes, normally within one working day
Take a look at what affects the cost and our accreditations.
About our ductwork cleaning in Cosham
No two duct runs are the same, in Cosham or anywhere else. A few metres to an outside wall, or a riser up through the building to a roof fan. We map the route during the survey and finds every access point before we quote. Typical jobs include sections of duct with no access panels and grease pooling at the foot of the riser, on vertical risers, access panels and horizontal duct runs.
Size does not change the work: a kitchen in a place like Cosham gets the whole system cleaned, canopy to discharge. The visit is booked around your opening hours, and the journey is planned ahead.
For insurers and inspectors, the record counts. That is why every job is written up in a report with pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Where
- Cosham (PO6, PO3, PO2)
- Wider area
- Portsmouth
- Paperwork
- Certificate plus before-and-after pictures
- Quote
- A fixed price before we start
- Working hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
What staff can safely do
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. That part needs specialist access and equipment.
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. Leave those to us.
Do you need ductwork cleaning in Cosham?
Many ducts don’t have enough access panels. Stretches with no way in may never have been touched, and grease there keeps thickening unseen.
Signs it’s time to call us include:
- Smells of old cooking grease from the ductwork
- Ductwork that has never been cleaned
- Thick crusts of old grease along the duct
- Grease leaking from duct joints
School kitchens, at schools like Court Lane Junior Academy for example, are usually cleaned in the holidays so no lunches are lost.
Comparing quotes
- Whether VAT is included
- What hours they’ll be on site
- How areas they cannot reach will be recorded
- Which accreditations they hold, and whether you can check them
Cosham: your questions answered
Who inspects food businesses in Cosham?
Kitchens in Cosham are inspected by Portsmouth council’s environmental health officers. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.
Can school kitchens in Cosham be cleaned in the holidays?
Yes. The holidays are the usual time for school work. Food Standards Agency records list about 18 schools, colleges and universities with registered kitchens within about a mile and a half of Cosham. Tell us your holiday dates and we’ll book the visit for when the site is empty.
What’s TR19?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Which sectors do you work in?
All kinds of commercial and public premises: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.
How do you clean inside the ductwork?
We open each access panel and clean the section it reaches. Heavy grease comes out by hand, and what’s left is degreased, with readings taken before and after.
What does ductwork cleaning cost?
We do not publish prices, because the cost depends on the job: the size of the system, its condition, access and when we can work. We fix the price before we start.
Can you look after several sites?
Yes. Our area covers London and the South East, so we can schedule a run of sites as one programme. Every site has its own report.
Do we have to stop cooking while the ducts are cleaned?
When the kitchen is closed. Larger systems may be cleaned over several nights, with the kitchen ready to cook each morning.
How we price ductwork cleaning
We quote each job individually. These are the things that affect it:
- The scale of the work
- Parking and loading at the site
- When the work can happen, such as evenings, overnight or weekends
- One-off work versus a regular cycle
Every site is different, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all play a part.
What to send for a quote
Photos and a few facts are often enough to price the work. Send what you can of the following:
- Where the site is and what kind of site it is
- Any previous report or certificate
- Any access panels or hatches you can see
- When the site is open and when it’s quiet
For a fixed quote, give us a ring on 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. You will typically have a quote within one working day.
Ductwork cleaning around Cosham
The coast is only about 1 mile from Cosham. Salt in the air is hard on rooftop fans, discharge cowls and fixings, so we check them for corrosion as well as grease. The FSA’s food hygiene register shows about 78 restaurants, cafés and works canteens and about 44 takeaways and sandwich shops across Cosham and its immediate surroundings (about a mile and a half). The duct above a busy canopy coats itself in grease long before anyone sees it. Environmental health officers from Portsmouth council inspect food businesses in Cosham. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. A dated certificate in the maintenance file answers the question before it’s asked.
A hospital like Queen Alexandra Hospital, about 0.6 miles north, is the kind of site where a kitchen may cook for patients, staff and visitors all day. If you cook for passing trade around Cosham station, the extract can be cleaned between your last and first customer.
Cosham is about 2 miles south-west of Purbrook, in Portsmouth. Every kind of commercial site in Cosham, ductwork cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Cosham is one of 19 places in Portsmouth where we work for commercial clients.
Our technicians cover all of the PO6, PO3 and PO2 postcode area for ductwork cleaning and the roads nearby. If you need ductwork cleaning at premises on Dean Road, Park Lane and Elgin Road or a nearby road, our technicians can take on the work. Cosham sits on or near the A397, which makes travel easy for evening and night visits. Neighbouring places we cover for ductwork cleaning include Wymering (1 mile north-west), Hilsea (1 mile south), Drayton (1 mile east), Widley (1 mile north-east) and Paulsgrove (1 mile west). We also work in nearby towns such as Southsea (4 miles south), Milton (3 miles south), Landport (3 miles south), Portsea (3 miles south-west), Portsmouth Point (4 miles south-west) and Fratton (3 miles south).
What’s near Cosham
Locally, jobs take us to businesses close to The First Post pub, Alexandra Park and Springfield School. Cosham has its own railway station: Cosham station. Other landmarks nearby include Tricorn Centre (2.9 miles south) and World War I Remembrance Centre (1 mile south-east). Open spaces near Cosham include Southmoor Nature Reserve and Portsdown Hill.
Multi-site and managed buildings
We regularly work with managing agents. Send the address, what’s needed and how access works and we’ll come back with a fixed quote.
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so each one has its own record.
What we do, step by step
There’s very little for your team to do on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Afterwards, the area is left tidy and the written report follows. Everything the job in Cosham needs is worked out beforehand, from the survey.
- First we diagnose: the route, the access and the grease levels.
- You get a fixed price before work starts.
- We clean section by section, working from panel to panel.
- Bends, risers and the base of each riser get extra attention.
- The duct is signed off with readings, photos and a next clean date.
How to prepare
- Let us know about permits to work or site inductions
- Let us know about parking and loading
- Agree a time when the area can be out of use
Getting a quote
The quickest way to a quote is to send pictures: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and many jobs can be priced from that alone.
Advice
Places near Cosham
What else we do in Cosham
Looking after it afterwards
So the system stays in good health:
- Flag drips from the duct right away
- Store the certificate with the fire risk assessment
- Do not block access panels with shelving or stock
- Ask for a grease thickness test if the kitchen gets busier
Keep the certificate and report with the fire risk assessment. It’s the evidence an insurer or inspector may ask for, and the pictures make the duct’s condition easy to see.
Keep the fan on throughout service. When the air stops, grease settles in the duct, so switching off early adds to the build-up.