Hampshire · Air handling unit cleaning
AHU Cleaning in Winnall
Professional AHU cleaning in and around Winnall, booked around your opening hours and signed off in writing with pictures.
- Blocked condensate drains and slimy trays
- Dirty coils holding back the airflow
- Intake sections clogged with outdoor debris
The process
We turn up at the time agreed with you, which is often after service, overnight or at a weekend. Anything that needs to be off for the work is switched off and left to cool before work begins, and floors and nearby surfaces are sheeted. The work itself takes from a few hours for a compact unit to a day or more for a large one. Visits to a place like Winnall are planned ahead, so we arrive with what the survey says the job needs.
- We agree a shutdown window that suits the building.
- We take before photos of each section of the unit.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- After pictures are taken and the certificate issued.
Getting ready for the visit
- Tell us about site rules, permits or sign-in
- Find the previous report, if there is one
- Let us know how we reach the system, including roofs, risers and plant rooms
Getting 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 0345 646 2711, or email photos.
Advice
AHU cleaning in Winnall, done properly
Our AHU cleans for sites in Winnall cover the parts that collect dirt: filters, coils, drain trays, fans and the internal panels. You get a TR19® certificate and a photo report showing the unit before and after. If you have debris and leaves in the fresh air intake and drain trays holding standing water, we can help, from supply and extract fans, internal panels and dampers and louvres onwards.
In a place like Winnall, air handling units are often tucked into roof spaces or small plant rooms, where they’re easy to forget. Filters, coils and drain trays need attention whatever the size of the unit.
For insurers and inspectors, the record counts. That is why every job is written up in a report with pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Location
- Winnall (SO23, SO21, SO20)
- Wider area
- Hampshire
- Records
- Written report with pictures
- Quote
- A fixed quote up front
- When we work
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
In-house cleaning or a specialist?
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We can diagnose it and quote.
Winnall buildings and their air
Food Standards Agency data includes about 8 schools, colleges and universities, about 29 care, childcare and hospital premises and about 5 hotels, B&Bs and guest houses within roughly a mile and a half of the centre of Winnall. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. About 0.6 miles south-west of Winnall is St John's Rooms And Chapel, the nearest hospital. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. At about 60 miles from central London, Winnall sits well inside the area we cover. Evening, overnight and weekend visits are all possible.
If you run a surgery, dental practice or care home near Winnall, clean ventilation matters as much to you as to a hospital like St John's Rooms And Chapel (about 0.6 miles south-west).
Winnall is about 1 mile north-east of Winchester, in Hampshire. Sites in Winnall get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with pictures. 683 places in Hampshire are on our list, large and small. You can also see our page for Southampton, roughly 11 miles from Winnall.
All of SO23, SO21 and SO20 is within our area for AHU cleaning, from the main roads to the quietest streets. Streets in the area include Moss Road, Water Lane and Imber Road, and we cover them all for AHU cleaning. Winnall sits on or near the M3, so getting to you is simple for evening and night visits. Close by, we work in Kings Worthy (2 miles north), Easton (2 miles north-east), Abbots Worthy (2 miles north), Temple Valley (2 miles east) and Morestead (3 miles south-east). Within a short drive, we also cover Eastleigh (7 miles south), Fareham (15 miles south), Andover (13 miles north-west), Totton (14 miles south-west), Chandler's Ford (7 miles south-west) and Alton (15 miles north-east).
Landmarks near Winnall
Typical jobs here are in premises near Leigh House Hospital, The Golden Lion pub and St. Cross Park. The closest station to Winnall is Winchester station, about 1 mile west. Other landmarks nearby include Winchester City Museum (0.8 miles west) and Wolvesey Castle (0.7 miles south-west). Green spaces nearby include Winnall Moors and Twyford Down.
What the work involves, part by part
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. Cleaning keeps it running as intended.
Drain trays
The drain tray collects water from the cooling coil. Standing water and slime are removed and the outlet is checked.
More services for Winnall
For landlords and multi-site operators
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.
We also work for facilities teams across offices, schools and healthcare in Winnall and across Hampshire. Larger estates can be phased building by building to keep disruption down.
What we’re called out for in Winnall
Wherever there’s a cooling coil, there’s condensate. If the drain tray outlet blocks or the tray does not fall properly, water stands in it, and slime and smells soon follow.
The symptoms we’re asked about most are:
- Air handling units with blocked filters
- Rooms that smell stuffy when the system runs
- Dust-coated heating and cooling coils
- Units that have only ever had filter changes
School buildings such as Winnall Primary School are usually done in the holidays, so classrooms aren’t disturbed.
Before you book anyone
- Proof of accreditation you can verify
- Whether the whole system is included, or only the parts that are easy to reach
- Whether they recommend a next date
- When they can work, and whether that’s outside your opening hours
Fixed quotes for AHU cleaning in Winnall
You’ll get a fixed price before any work starts. It’s based on:
- The size of the system
- Access, including roofs, risers and ceiling voids
- What state the system is in
- Whether it’s a one-off visit or part of a schedule
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Helping us quote
What to send for a quote:
- The postcode and the type of business
- Detail shots of panels, filters and grilles
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Problems your staff have spotted
Some systems can be priced from photos; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before any work starts.
Questions from Winnall
Do you work at weekends in Winnall?
Yes, evening, overnight and weekend work is normal for us. The work in Winnall can fit around your hours. Just call 0345 646 2711 or drop us a line with your opening times and we will plan around them.
Do you cover smaller places like Winnall?
Yes. Winnall is within the area we cover across London and the South East. A survey first, from photos or a visit, means we arrive with the right kit.
Do you repair air handling units?
Our AHU work is cleaning rather than mechanical repair. Any faults we notice are recorded so your maintenance contractor can deal with it.
What does AHU cleaning cost?
There’s no set price, as it depends on the job: how big it is, what state it’s in, how we reach it and the working hours. We fix the price before work begins.
Are you accredited?
We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
Can you price the work without visiting?
Yes, where the pictures show enough. If not, a site survey comes first, then a fixed quote.
Do you look at the system first?
Yes. Photos often do the job, and larger or hidden systems get a visit.
How long does it take to clean an air handling unit?
It takes from a few hours for a compact unit to a day or more for a large one. Size, layout and how dirty it is decide the rest, and the quote will give you a clear idea.
Between visits
To keep the system working properly between visits:
- Report musty smells from the vents straight away
- Make sure condensate is draining away
- Clear leaves and litter away from the intake
- Store the TR19 paperwork where auditors can find it
The report shows each section of the unit before and after, along with anything we couldn’t reach. It also notes faults we spotted, such as damaged panels or a blocked drain.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.