Oxfordshire · Air handling unit cleaning
AHU Cleaning in Long Wittenham
One call covers cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Long Wittenham, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Air handling units never cleaned inside
- Dust-coated heating and cooling coils
- Dirty fans and fan housings
About our AHU cleaning in Long Wittenham
Where a building in Long Wittenham has had little more than filter changes, there may be dirt on the coils, fan and casing that nobody has looked at. A full AHU clean takes in the whole unit. The work covers filter sections, heating and cooling coils and dampers and louvres, and people most often call us about drain trays holding standing water and odours coming through the supply air.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
A written report with pictures follows every visit, so you have a record of what was done and when. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Location
- Long Wittenham (OX14)
- Wider area
- Oxfordshire
- Reporting
- Report and pictures after the visit
- Quotes
- Fixed quote, normally within a working day
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
How we price AHU cleaning
We quote each job individually. These are the things that affect it:
- The times the site is available
- Whether we need access equipment or extra panels
- The condition we find in the survey
- Where the site is and how we reach it
What you pay reflects the actual work. That is why we survey first, from pictures or on site, and why the quote is fixed before work begins.
Asking for a quote
Photos let us diagnose from a distance. Try to include:
- Your last certificate, test record or report
- When the site is open and when it’s quiet
- A few general shots of the system
- Any symptoms, from odd noises to smells or leaks
Want a quote for AHU cleaning? Please ring 0345 646 2711 or drop us a line with a few details about the site. We’ll talk you through the work and send you a fixed quote before you commit to anything.
Places near Long Wittenham
Also in Long Wittenham
What AHU cleaning looks like in Long Wittenham
Long Wittenham is about 49 miles from central London, well within the area we cover across London and the South East. The visit is fixed around your opening hours, not ours. About 4.4 miles north-west of Long Wittenham is Abingdon Community Hospital, the nearest hospital. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
For schools like Long Wittenham (Church of England) Primary School, the holidays are the usual time to inspect and clean ventilation.
Long Wittenham is about 3 miles north-east of Didcot, in Oxfordshire. From the centre of Long Wittenham to the outskirts, AHU cleaning is available to all kinds of commercial premises, from a single unit to a large public building. Long Wittenham is one of 443 places in Oxfordshire we cover for commercial clients. Our Oxford page covers sites nearby (8 miles or so).
All of OX14 is within our area for AHU cleaning, from busy streets to back roads. AHU cleaning is available to premises on High Street, Didcot Road and Wessex Way and nearby roads. Neighbouring places we cover for AHU cleaning include Clifton Hampden (1 mile north), Appleford-on-Thames (1 mile west), Culham (2 miles north-west), Didcot (3 miles south-west) and Sutton Courtenay (3 miles west). We also work in nearby towns such as Oxford (8 miles north), Abingdon-on-Thames (4 miles north-west), Thame (13 miles north-east), Wantage (10 miles west), Henley-on-Thames (15 miles south-east) and Grove (9 miles west).
What’s near Long Wittenham
Locally, jobs take us to businesses close to The Plough Public House. For rail, the closest station is Appleford station, roughly 1.3 miles west of the centre. A little further out are Brightwell Castle (2.6 miles south-east) and Pendon Museum (within half a mile west). Not far away are Wittenham Clumps and Mowbray Fields.
What happens on the day
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool before any work starts, and the area around the work is covered and protected. On site, it takes one overnight shift for many single units, with bigger plant phased. A quick note on how to find the site and where to park makes a visit to Long Wittenham run smoothly.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Getting ready for the visit
- Plan for cooking equipment or plant to be off before we arrive
- Tell us where we can park and unload
- Tell us the best time to work, such as after service or at a weekend
Ask for a quote
To help 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, phone us on 0345 646 2711 or drop us a line.
Related advice
Part by part
Heating and cooling coils
Cooling coils stay damp in use, so dirt on them can turn sticky. We clean the coil and the tray beneath it together.
Rooftop and plant room units
Units on roofs and in plant rooms can be awkward to reach. Access is planned during the survey so the quote reflects it.
What we’re called out for in Long Wittenham
Dirt in an AHU matters in two ways: the unit supplies the air people breathe, and a dirty unit has to work harder. For anyone working, learning or staying in a building in Long Wittenham, that is air they breathe for hours at a time.
Signs it’s time to call us include:
- Stale or musty smells from the ventilation
- Filters that are clogged or overdue
- Units needing a clean before a new tenant or handover
- Air handling units never cleaned inside
Healthcare buildings such as Abingdon Community Hospital, about 4.4 miles north-west, depend on their ventilation; if you manage a surgery, clinic or care home near Long Wittenham, yours matters too.
Before you book anyone
- Whether the quote shows VAT
- Proof of accreditation you can verify
- Exactly which parts of the system are covered
- Whether a survey comes first
Aftercare tips
To keep the system working properly between visits:
- Flag stale or damp smells in the supply air
- Report stiff or damaged access doors
- Keep filter changes on time and recorded
- Keep the area around the fresh air intake clear
Restart the unit with your site team or maintenance contractor once we have finished. Check the drain tray is emptying over the first few days to make sure it stays clear.
Do not let leaves, litter or stored materials build up near the fresh air intake. Anything around the intake is likely to be drawn in.
Long Wittenham questions
Can you come to Long Wittenham after we close?
Yes, nights and weekends are routine for us. The work in Long Wittenham can fit around your hours. Tell us your opening hours when you ask for a quote.
Can you do AHU cleaning in Long Wittenham?
Yes, Long Wittenham is within the area we cover across London and the South East. Just call us on 0345 646 2711 or send us an email with a few details of the site.
Which parts of an air handling unit do you clean?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. Filters are cleaned or changed as agreed in the quote.
Is there a survey before the work?
Yes. For many sites, pictures and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
Are you accredited?
We hold CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
Do you have insurance?
Yes. We carry full insurance, and we’ve been trading since 2009.
Does the AHU have to be shut down for cleaning?
Yes, while the clean is under way. Out-of-hours work is available to keep disruption down.
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.
When it’s something else
AHU cleaning can’t fix everything, and we’d rather say so up front. It doesn’t solve:
- Damaged coils beyond cleaning
- Mechanical faults with motors, belts or bearings
- Ventilation that was badly designed in the first place
Not sure which it is? You can ring 0345 646 2711 or use the quote form and we’ll tell you honestly before booking.
Parts of the system we cover
- Internal panels
- Filter sections
- Drain trays
- Dampers and louvres
- Heating and cooling coils
- Supply and extract fans
Staff cleaning versus specialist work
Your own staff can handle the daily basics: 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.
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.