Oxfordshire · Air handling unit cleaning
Great Haseley AHU cleaning
One call covers air handling unit cleaning in Great Haseley: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Dirty fans and fan housings
- Units needing a clean before a new tenant or handover
- Dirty coils holding back the airflow
AHU cleaning in Great Haseley, done properly
Where a building in Great Haseley has had little more than filter changes, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full AHU clean takes in the whole unit. If you’re dealing with odours coming through the supply air and dust-coated heating and cooling coils, we can help, from heating and cooling coils, internal panels and drain trays onwards.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Where
- Great Haseley (OX44)
- Wider area
- Oxfordshire
- Reporting
- Written report with photos
- Quotes
- A fixed quote up front
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Do you need AHU cleaning in Great Haseley?
Cooling coils create condensation, and that water has to go somewhere. A blocked outlet or a badly sloped tray leaves standing water, and slime and smells soon follow.
What we’re most often called out for:
- Condensate trays that will not empty
- Dirty coils holding back the airflow
- Air handling units never cleaned inside
- Units needing a clean before a new tenant or handover
If you run a surgery, dental practice or care home near Great Haseley, clean ventilation matters as much to you as to a hospital like Thame Community Hospital (about 5.1 miles north-east).
What your quote should include
- Whether a written report and pictures are included
- How VAT is shown on the quote
- How they set the interval to the next visit
- Exactly which parts of the system are covered
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. Equipment that has to be off is switched off and allowed to cool before any work starts, and floors and nearby surfaces are sheeted. On site, it takes from a few hours for a compact unit to a day or more for a large one. Rural roads and tight entrances are worth telling us about before a visit to Great Haseley.
- The survey covers the unit, its access and how it can be shut down.
- 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.
Before we arrive
- Have your last certificate or report to hand
- Mention any parking or loading restrictions
- Allow time for equipment near the work to be turned off and cool down
Get a fixed quote
Need a price for AHU cleaning? Please call 0345 646 2711, or email photos and tell us about the site. We will talk you through the work and give you a fixed quote before you commit to anything.
Related advice
How we price AHU cleaning
We do not publish a price list, because no two systems are the same. What we look at:
- Any permits to work or inductions
- Travel, parking and unloading
- How big the system is
- Whether it’s a one-off visit or part of a schedule
The price reflects the work, not guesswork. That’s why we survey first, from pictures or on site, and why the quote is fixed before work begins.
Helping us quote
Photos and a few facts are often enough to price the work. Send what you can of the following:
- Photos showing the whole system and its surroundings
- Your opening hours and when the area is out of use
- The site address and the type of premises
- The roof, plant room or outside wall the system runs to
For a fixed quote, give us a ring on 0345 646 2711 or send us an email with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. You’ll typically have a quote within one working day.
Places near Great Haseley
Other services in Great Haseley
Ventilation in Great Haseley buildings
For Great Haseley, the closest hospital is Thame Community Hospital, roughly 5.1 miles north-east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. Great Haseley, about 45 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site.
If you manage a school such as Great Milton Church of England Primary School, ventilation cleaning is best booked for the holidays.
Great Haseley is about 5 miles south-west of Thame, in Oxfordshire. We provide AHU cleaning for commercial premises of every kind in Great Haseley and the rest of Oxfordshire. Across Oxfordshire, we cover 443 places, Great Haseley among them. Our Oxford page covers sites nearby, about 7 miles away.
Here we cover the OX44 postcode area for AHU cleaning. If you need AHU cleaning at premises on Rectory Road, Horse Close Cottages and Back Way or a nearby road, our technicians can take on the work. If your site is just outside Great Haseley, we cover Great Milton (1 mile north-west), Milton Common (1 mile north-east), Tiddington (2 miles north), Albury (2 miles north-east) and Draycott (3 miles north). Within a short drive, we also cover Oxford (7 miles west), Didcot (10 miles south-west), Bicester (14 miles north), Abingdon-on-Thames (9 miles west), Thame (5 miles north-east) and Henley-on-Thames (14 miles south-east).
Local landmarks in Great Haseley
Locally, jobs take us to businesses close to The Plough Inn and the streets around them. Nearby you’ll also find Thame Community Hospital (5.1 miles north-east) and Waterperry Gardens Rural Museum (2.8 miles north). Green spaces nearby include Wells Farm.
Why it’s worth doing now in Great Haseley
When the unit is clean, less dirt reaches the ducts, so the whole system stays cleaner for longer. It also means the next inspection has less to find. Systems in rural buildings are often out of sight and out of mind.
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will go through it with you.
Why Great Haseley businesses choose us
- Fixed quotes from a survey or photos
- In business since 2009
- Each visit written up, with photos
- Work around your opening hours, with 24/7 emergency cover
Take a look at what affects the cost or how to check a contractor.
What your team can do, and what needs us
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, alongside our reports.
Honest limits
To be straight with you, some problems need a different fix:
- Controls and BMS settings that run the unit
- Breakdowns that need a mechanical engineer
- Damaged coils beyond cleaning
If you’re not sure, just call 0345 646 2711 or drop us a line and we will give you a straight answer.
What the work covers
- Filter sections
- Supply and extract fans
- Drain trays
- Internal panels
- Dampers and louvres
- Heating and cooling coils
Landlords, agents and facilities managers
Keeping records across a portfolio is half the battle. Each visit produces a dated report with photos, so you can show an insurer or inspector what was done at each site.
Facilities teams in offices, schools and healthcare sites book us too in Great Haseley and across Oxfordshire. Larger estates can be phased building by building around the people who use them.
Common questions in Great Haseley
Do you do school ventilation cleaning in Great Haseley in the summer holidays?
Yes, and it’s the easiest time to do it. Food Standards Agency records list about 2 schools, colleges and universities with registered kitchens within about a mile and a half of Great Haseley. Booking early in the term gives the best choice of holiday dates.
Will you come out to Great Haseley?
Yes, Great Haseley is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.
What do you clean inside the unit?
The main parts are the filters, coils, drain tray, fan and inside of the casing. We confirm the scope after looking at the unit.
Do you work evenings or weekends?
Yes, if daytime working is not practical. We plan the shutdown window with you.
What information do you need?
Where the site is, what it is and when it’s open, along with a few pictures and any previous report.
How often should an air handling unit be cleaned?
That’s set by inspection, in line with TR19® Air. Units in heavy use or in sensitive buildings may need attention more often.
Do you need to switch the unit off?
Yes, while the clean is under way. Out-of-hours work is available so the building isn’t left without ventilation when it’s busy.
Which sectors do you work in?
All kinds of commercial and public premises: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.