Oxfordshire · Air handling unit cleaning
Air handling unit cleaning in Christmas Common, Oxfordshire
We cover Christmas Common for air handling unit cleaning. Out-of-hours visits, a fixed quote and a written report with photos on every job.
- Odours coming through the supply air
- Plant that needs cleaning after a refit
- Dirty coils holding back the airflow
How the visit works
When we arrive, we check the system against the survey or the photos you sent. Anything unexpected is raised with you before we go further. After that, the work takes one overnight shift for many single units, with bigger plant phased. In a small place like Christmas Common, the journey is planned ahead and the visit arranged around the site’s hours.
- We survey the unit from pictures or on site and agree what’s included.
- We arrange the shutdown with your staff and sheet the area.
- Filters, coils, fan section and casing are cleaned in turn.
- We clean out the drain tray and make sure it drains.
- We close up the unit and send the certificate and before and after photos.
How to prepare
- Clear loose items from the work area
- Make sure equipment near the work can be switched off and left to cool
- Let us know when the site is closed or quiet
How to get a quote
Some systems can be priced from photos; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, you get a fixed price before work begins.
Related advice
AHU cleaning in Christmas Common, done properly
Where a building in Christmas Common 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. We’re often asked to deal with units that have only ever had filter changes and units needing a clean before a new tenant or handover, across supply and extract fans, filter sections and drain trays.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, which makes them easy to overlook.
We have been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Place
- Christmas Common (OX49)
- Wider area
- Oxfordshire
- Reporting
- Written report with photos
- Quote
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Also near Christmas Common
More services for Christmas Common
Between visits
Aftercare is simple, and it helps at the next visit:
- Book the next check in line with the report
- Watch for drips or damp patches near the plant
- Keep inspection doors on the unit in good order
- Don’t store bins or materials near the intake
Keep filter changes on schedule between cleans, because good filters protect everything downstream. Record each change in the maintenance log.
Change or clean filters on time. Once filters clog, dirt starts getting past them.
What a clean will not put right
To be straight with you, there are a few things this work won’t fix:
- Ductwork downstream of the unit, which is a separate clean
- Faulty motors, drives or bearings
- Building management system faults
Not sure which it is? You can call 0345 646 2711 or use the quote form and we’ll tell you honestly before you book.
What we work on in Christmas Common
- Supply and extract fans
- Internal panels
- Dampers and louvres
- Heating and cooling coils
- Filter sections
- Drain trays
Christmas Common buildings and their air
At about 39 miles from central London, Christmas Common sits well inside the area we cover. Evening, overnight and weekend visits are all possible.
If you manage a school such as Icknield Community College, ventilation cleaning is best booked for the holidays.
Christmas Common is about 8 miles south of Thame, in Oxfordshire. Every kind of commercial site in Christmas Common, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Christmas Common is one of 443 places in Oxfordshire where we work for AHU cleaning. Our Reading page covers sites nearby, about 13 miles away.
AHU cleaning in OX49 follows the same survey, fixed quote and written report as everywhere else we cover. Neighbouring places we cover for AHU cleaning include Northend (1 mile east), Howe Hill (1 mile south-west), Shirburn (2 miles north-west), Cookley Green (2 miles south-west) and Ibstone (2 miles east). Larger places within reach include Oxford (14 miles north-west), Didcot (12 miles west), Abingdon-on-Thames (14 miles west), Thame (8 miles north), Henley-on-Thames (7 miles south) and Benson (6 miles west).
Landmarks near Christmas Common
Typical jobs here are in premises near Fox And Hounds Inn Public House, among other places. The countryside around Christmas Common includes Bald Hill and Aston Rowant NNR.
When to call us in Christmas Common
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 Christmas Common, that is air they breathe for hours at a time.
It’s time to book a visit if you see:
- Dirty filters cutting the airflow
- Units needing a clean before a new tenant or handover
- Units that have only ever had filter changes
- Fan sections that haven’t been cleaned in years
In Christmas Common, we look inside the system before deciding what needs cleaning.
Questions to ask before you book
- Whether inaccessible sections are listed on the report
- When they can work, and whether that’s outside your opening hours
- If they look at the system before pricing
- Whether they recommend a next date
Part by part
Internal casing and panels
We open each section through its doors and close them securely when we are done before the unit is handed back.
Drain trays
Condensate from the coil drips into a tray beneath it. We clear standing water, clean out slime and check the outlet is draining.
Managing agents and facilities teams in Christmas Common
Keeping records across a portfolio is half the battle. Each visit produces a dated report with photos, ready to show insurers, fire officers or EHOs.
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side and send the paperwork to whoever needs it.
What staff can safely do
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, they should report it rather than try to fix it. We can diagnose it and quote.
Common questions in Christmas Common
Do you cover Christmas Common for AHU cleaning?
Yes, Christmas Common is covered. Just phone us on 0345 646 2711, or email photos with a few details of the site.
Do you work at weekends in Christmas Common?
Yes. We work evenings, overnight and at weekends. The work in Christmas Common 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.
Can you come out in an emergency?
Yes. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we will advise on what to do next.
How long does an AHU clean take?
Typically the clean takes anything from half a day for one small unit to several shifts for a plant room full of them. The shutdown is planned to fit, including evenings or weekends.
What is TR19?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It is not legislation, but it’s the standard people check against.
What accreditations do you have?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’ve been trading since 2009 and we’re fully insured.
Do you look at the system first?
Yes. Photos often do the job, while bigger or harder-to-see systems are surveyed on site.
Can you fix a faulty AHU?
The clean includes noting faults, but repairs sit with your maintenance contractor, with photos where it helps.