Buckinghamshire · Air handling unit cleaning
Winslow AHU cleaning
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for businesses, landlords and public buildings in Winslow. CHAS, SafeContractor and ISO 9001, and fully insured.
- Units needing a clean before a new tenant or handover
- Blocked condensate drains and slimy trays
- Debris and leaves in the fresh air intake
AHU cleaning in Winslow
We clean the parts of the unit where dirt and moisture gather: filters, coils, drain trays, fans and the internal panels. Every clean comes with a TR19® certificate and before and after pictures in a report. The work covers dampers and louvres, internal panels and supply and extract fans, and common reasons people get in touch are air handling units with blocked filters and units needing a clean before a new tenant or handover.
Around a place like Winslow, ventilation systems tend to be in schools, surgeries, care homes and workplaces. Smaller systems still gather dust and need inspecting.
For insurers and inspectors, the record counts. That’s why every job is written up in a report with photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Location
- Winslow (MK18)
- Wider area
- Buckinghamshire
- Records
- Written report with pictures
- Price
- A fixed price before work begins
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Updated
- 30 October 2026

How the visit works
When we arrive, we check the system against the survey or the pictures you sent. Anything unexpected is raised with you before we go further. From there, it takes from a few hours for a compact unit to a day or more for a large one. Evenings, weekends or a closed day all work for a site in a place like Winslow.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Tell us about site rules, permits or sign-in
- Make sure equipment near the work can be switched off and left to cool
Getting a quote
We don’t publish a price list, because every site is different. Instead, we look at your site first, from photos or a survey, and then send you a fixed quote. To get going, phone us on 0345 646 2711 or email us.
Read more
Keeping the system healthy
No system stays clean for ever, but care slows the build-up. Our tips:
- File each AHU report in the maintenance log
- Book the next check in line with the report
- Clear leaves and litter away from the intake
- Look at the condensate drain whenever the unit is serviced
Once the clean is done, we send a TR19® certificate and a report with before and after photos. They belong in the plant or maintenance log.
Regular inspection under TR19® Air shows when cleaning is due instead of leaving it to guesswork.
When it’s something else
A few issues sit outside what this work can do:
- Breakdowns that need a mechanical engineer
- Airflow problems caused by the system’s design
- Coils that are corroded or leaking and need replacing
Not sure which it is? You can phone us on 0345 646 2711, or send details by email and we will tell you honestly.
Where we work
- Supply and extract fans
- Filter sections
- Drain trays
- Internal panels
- Heating and cooling coils
- Dampers and louvres
What your team can do, and what needs us
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, alongside our reports.
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. Cleaning inside ducts and units is specialist work.
Also in Winslow
How the job changes from site to site
Drain trays
A tray that doesn’t drain becomes a pool of stagnant water in the airstream. We clean it and report anything about the tray or drain that needs fixing.
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. We clean them with care so the fins aren’t damaged.
AHU cleaning in Winslow: local notes
Food Standards Agency records list about 4 caring premises (care homes, nurseries and hospitals) registered as food businesses within 1.5 miles or so of the middle of Winslow. Busy, occupied buildings like these are where clean supply air matters most. At about 46 miles from central London, Winslow sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site. For Winslow, the closest hospital is Buckingham Community Hospital, roughly 5.9 miles north-west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
Buckingham Community Hospital, about 5.9 miles north-west, is the nearest hospital to Winslow, and healthcare sites of every size need their supply air kept clean.
Winslow is about 6 miles south-east of Buckingham, in Buckinghamshire. We carry out AHU cleaning for businesses, landlords and public buildings in Winslow and the rest of Buckinghamshire. Our Buckinghamshire coverage runs to 263 places, Winslow among them. There’s also a page for Milton Keynes, roughly 8 miles from Winslow.
Every address in MK18 is covered for AHU cleaning, from busy streets to back roads. That includes premises on High Street, Station Road and Avenue Road and nearby roads. With the A413 close by, Winslow is easy for our technicians to reach for AHU cleaning. Neighbouring places we cover for AHU cleaning include Granborough (2 miles south), Great Horwood (2 miles north), Swanbourne (2 miles east), Little Horwood (2 miles north-east) and Mursley (3 miles east). Within a short drive, we also cover Aylesbury (9 miles south), Buckingham (6 miles north-west), Elmhurst (9 miles south), Southcourt (10 miles south), Princes Risborough (15 miles south) and Haydon Hill (8 miles south).
Local landmarks in Winslow
Locally, jobs take us to businesses close to The Swan pub, Winslow Church of England School and Furze Down School and the streets around them. Well-known places in the area include Drayton Parslow Mound (4 miles east) and Buckingham Community Hospital (5.9 miles north-west).
Why deal with it now?
Stuffy rooms and stale smells in a building in Winslow can sometimes be traced back to the AHU. Cleaning it deals with the cause rather than the symptom. It’s better to plan the work at a site near Winslow than wait for a failure.
Putting the work off seldom saves money. Problems in a system tend to grow, which can make the next visit longer. If you’re not sure what’s needed, call 0345 646 2711, or email photos and we’ll give you an honest view and a fixed quote.
Why Winslow businesses choose us
- Fixed quotes from a survey or photos
- Fully insured
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Out-of-hours work and a 24/7 emergency line
When to call us in Winslow
Cooling coils create condensation, and that water has to go somewhere. 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 include:
- Odours coming through the supply air
- Blocked condensate drains and slimy trays
- Air handling units never cleaned inside
- Air handling units with blocked filters
School buildings such as Sir Thomas Fremantle School are usually done in the holidays, so classrooms aren’t disturbed.
What your quote should include
- Whether a written report and pictures are included
- Whether they recommend a next date
- If they look at the system before pricing
- How areas they cannot reach will be recorded
Questions from Winslow
Do you work in villages like Winslow?
Yes, smaller places are covered as well as towns. Let us know about access, parking and anything unusual about getting there when you book.
Do you work overnight in Winslow?
Yes, out-of-hours work is a big part of what we do. The work in Winslow can fit around your hours. Just give us a ring on 0345 646 2711, or email photos with your opening times and we will plan around them.
Do you need to switch the unit off?
Yes. We can’t clean a running unit, so it’s switched off and made safe first. The shutdown is planned with whoever runs the building.
When should our AHU next be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. We recommend a next date in each report.
What information do you need?
The site address, the type of premises and your opening hours, plus pictures of the system and your last certificate or report if you have one.
How long does an AHU clean take?
The work takes anything from half a day for one small unit to several shifts for a plant room full of them. Large plant can be split over several shifts, and you can give us a ring on 0345 646 2711 or use the quote form to plan it.
Do you offer emergency callouts?
Yes. Our emergency line runs 24/7 for anything that cannot wait until a planned visit. Ring any time and tell us what’s happened.
How much does AHU cleaning cost in Winslow?
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. You get a fixed price before we start.