Oxfordshire · Air handling unit cleaning
Air handling unit cleaning in Fifield, Oxfordshire
AHU cleaning in Fifield from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Rooms that smell stuffy when the system runs
- Fan sections that haven’t been cleaned in years
- Plant that needs cleaning after a refit
AHU cleaning in Fifield
A cooling coil drips condensate into a tray that should drain away. When the drain blocks, water sits there and the tray turns slimy, in the airstream that feeds the building. Cleaning and clearing it is a key part of the job. If you’re dealing with rooms that smell stuffy when the system runs and plant that has been serviced but not cleaned, we can help, from internal panels, heating and cooling coils and filter sections onwards.
For a building in or near Fifield, access is agreed in advance and the visit is planned around the journey.
Good records are part of the job. Each visit is written up with pictures, listing what was done, anything we couldn’t reach and when the next visit is due. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Location
- Fifield (OX7)
- Region
- Oxfordshire
- Paperwork
- Report and photos after the visit
- Quotes
- Fixed quote, normally within a working day
- When we work
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Part by part
Heating and cooling coils
Cooling coils stay damp in use, so dirt on them can turn sticky. The coil and its drain tray are cleaned as one job.
Drain trays
The drain tray collects water from the cooling coil. Standing water and slime are removed and the outlet is checked.
What we do, step by step
When we arrive, we check the system against the survey or the pictures you sent. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. Rural roads and tight entrances are worth telling us about before a visit to Fifield.
- First we agree when the unit can be switched off, including evenings or weekends.
- 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.
- We take after pictures and issue the certificate and report.
How to prepare
- Have your last certificate or report to hand
- Mention any locked doors, roof access or ceiling voids
- Make sure someone can let us in and lock up afterwards
Getting a quote
Quoting starts with a diagnosis, from your photos and details or, where that is not enough, a survey on site. Then we send a fixed price, before we start.
Related advice
What affects the cost of AHU cleaning
There’s no set price list, because no two systems are the same. The quote depends on:
- The condition of the system
- The times the site is available
- Whether several sites go on one quote
- Site requirements such as sign-in and permits
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 will have a fixed price before we start.
What to send for a quote
Before you ask for a quote, gather:
- The site address and the type of premises
- Problems your staff have spotted
- The times we could work without disrupting the site
- How we’d reach plant on a roof or in a plant room
Some systems can be priced from pictures; 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.
Multi-site and managed buildings
Facilities teams in offices, schools and healthcare sites book us too across Oxfordshire. Work can be phased by floor, building or site around the people who use them.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
Why it’s worth doing now in Fifield
Leave an AHU uncleaned and the dirt does not stay put. It moves on into the ductwork and out into the rooms, so cleaning the ducts without the unit only goes so far. Systems in rural buildings are often out of sight and out of mind.
The cost depends on the size of the system, the condition it’s in and access to every part of it. We give you a fixed price before work begins, so you know where you stand.
Why us?
- CHAS, SafeContractor and ISO 9001
- Full insurance on every job
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- In business since 2009
Read what affects the cost or our accreditations.
Towns and villages near Fifield
Other services in Fifield
When it’s something else
In fairness, some problems need a different fix:
- A system that is undersized for the building
- Ductwork downstream of the unit, which is a separate clean
- Controls and BMS settings that run the unit
If you are not sure, just give us a ring on 0345 646 2711 or drop us a line and we’ll give you a straight answer.
What we work on in Fifield
- Heating and cooling coils
- Filter sections
- Internal panels
- Supply and extract fans
- Drain trays
- Dampers and louvres
What AHU cleaning looks like in Fifield
Moore Cottage Hospital is the nearest hospital, about 4.6 miles west of Fifield. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
Healthcare ventilation, from large hospitals like Moore Cottage Hospital (about 4.6 miles west) to small clinics, depends on clean filters, coils and ducts. In Fifield, we look inside the system before deciding what needs cleaning.
Fifield is about 7 miles north of Carterton, in Oxfordshire. Whatever kind of site you run in Fifield, we can take on AHU cleaning. Visits can be booked for evenings, overnight or weekends so the site keeps running. We cover 443 places across Oxfordshire, large and small. We also work in Oxford, about 20 miles from Fifield.
We work across OX7 for AHU cleaning and the streets around it. Whether your site is on High Street, Church Street and The Green or a nearby road, we can help. Neighbouring places we cover for AHU cleaning include Idbury (1 mile north), Milton-under-Wychwood (2 miles east), Foscot (2 miles north), Fulbrook (4 miles south) and Little Barrington (4 miles south-west). Within a short drive, we also cover Witney (9 miles south-east), Carterton (7 miles south), Faringdon (15 miles south), Chipping Norton (7 miles north-east), Woodstock (13 miles east) and Cogges (9 miles south-east).
Around Fifield
Typical jobs here are in premises near Merrymouth Inn, among other places. The nearest railway station is Shipton station, about 2.6 miles east of the centre. Well-known places in the area include Moore Cottage Hospital (4.6 miles west).
Looking after it afterwards
So the system stays in good health:
- Report stiff or damaged access doors
- Do not store bins or materials near the intake
- Don’t ignore odours coming through the grilles
- File each AHU report in the maintenance log
If the ductwork hasn’t been cleaned, consider it next. Cleaning the unit and ducts together gives the best result, and we can survey both.
Keep the area around the intake clear. What’s near the intake ends up in the unit.
Common questions in Fifield
Is AHU cleaning available in Fifield?
Yes. Our area runs across London and the South East, Fifield included. A fixed quote usually follows within one working day of the survey details.
Do you cover smaller places like Fifield?
Yes. Fifield is within the area we cover across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
What is TR19?
TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
What happens if you cannot reach some of it?
The report shows them clearly. In ductwork, new access panels are often the answer, and we can fit those.
Do you work with multi-site operators?
Yes. One number covers all your sites in our area, with visits on a regular schedule.
Are you fully insured?
Yes. We carry full insurance, and we have been trading since 2009.
Is a quote from pictures possible?
In many cases, yes. With good pictures, the site type and your last report, we can price many jobs. Larger or hidden systems need a survey on site first.
What happens to the waste?
Anything we remove is contained as we work and taken away with us, from grease and debris to used cleaning water. None of it is left on site.