Oxfordshire · Air handling unit cleaning
Air handling unit cleaning in Leafield, Oxfordshire
AHU cleaning for Leafield and the surrounding area: diagnosis first, then a fixed quote, the work and a report with pictures. Call for a fixed quote.
- Filters that are clogged or overdue
- Stale or musty smells from the ventilation
- Leaves and litter drawn into the unit
AHU cleaning in Leafield, done properly
Drain trays under cooling coils are meant to empty. If the outlet blocks, standing water and slime build up, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. Typical jobs include dirty filters cutting the airflow and leaves and litter drawn into the unit, on supply and extract fans, heating and cooling coils and dampers and louvres.
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.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Location
- Leafield (OX29)
- Wider area
- Oxfordshire
- Reporting
- Written report with photos
- Price
- A fixed quote up front
- Hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Looking after it afterwards
So the system stays in good health:
- Check the drain tray is emptying during routine visits
- Don’t store bins or materials near the intake
- Store the TR19 paperwork where auditors can find it
- Keep inspection doors on the unit in good order
Photos in the report cover the filters, coils, drain tray, fan and casing, along with anything we couldn’t reach. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Make sure access doors and panels on the unit open easily. If a section is hard to get into, it tends not to get checked.
What affects the cost of AHU cleaning
A fixed price needs a few facts first. We check:
- What state the system is in
- Where the site is and how we reach it
- Access, including roofs, risers and ceiling voids
- Whether it’s a one-off visit or part of a schedule
Combining work into one visit or one programme can make for a more efficient booking. Tell us about everything you’d like looked at and we will price it together.
Asking for a quote
When you contact us, these details help:
- Wide pictures of the system and the area around it
- Any access panels or hatches you can see
- Any symptoms, from odd noises to smells or leaks
- Your opening hours and when the area is out of use
To get a fixed quote, ring 0345 646 2711 or use the quote form with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. You will normally have a quote within one working day.
Questions from Leafield
Is Leafield in your area for AHU cleaning?
Yes, Leafield is within the area we cover across London and the South East. A fixed quote normally follows within one working day of the survey details.
Do you work in villages like Leafield?
Yes. Leafield is within the area we cover across London and the South East. Just mention lanes, gates or anything else about the site when you book.
How much notice should we give?
Book as early as you can for planned work, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
How often do AHUs need cleaning?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. Each report suggests when the unit should next be looked at.
Do you offer emergency callouts?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, with the emergency line covering every other hour.
How do you keep the site clean during the work?
We start with protection: floor sheeting and covers over nearby surfaces and equipment. The area is left tidy, with our waste taken away.
Will the ventilation be off while you clean?
Yes, for the time we are working on it. We can work evenings, overnight or at weekends to keep disruption down.
Which accreditations do you hold?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’ve been trading since 2009 and we are fully insured.
Staff cleaning versus specialist work
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Managing agents and facilities teams in Leafield
Running several sites is easier with one contractor. We cover South East England and London, so visits at different addresses can be planned together and kept on a regular cycle.
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.
How the visit works
We are used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. On site, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. We agree a date with you, plan the drive to Leafield and turn up when the site is quiet.
- We survey the unit from pictures or on site and agree what’s included.
- The unit is shut down with your site team and the area protected.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Drain trays are cleared and cleaned and the outlet checked.
- A TR19® certificate and photo report follow the clean.
How to prepare
- Clear the space around the work
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Dig out any earlier paperwork for the system
Get a fixed quote
For AHU cleaning in Leafield, give us a ring on 0345 646 2711, or send details by email. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. We typically send a fixed quote within one working day.
Advice
When to call us in Leafield
No filter stops everything. The fine dust that passes the filters lands on the coils, the fan and the internal panels, a little more each month.
Common reasons sites call us include:
- Filters that are clogged or overdue
- Air handling units never cleaned inside
- Drain trays holding standing water
- Leaves and litter drawn into the unit
Classrooms and halls at schools such as Leafield Church of England Primary School are easiest to work in when pupils are away.
What your quote should include
- Whether they recommend a next date
- Whether a written report and pictures are included
- What’s included in the scope, part by part
- Whether a survey comes first
Towns and villages near Leafield
More services for Leafield
When something else is needed
Not every problem is solved by AHU cleaning, and we’d rather say so up front. It will not put right:
- Ventilation that was badly designed in the first place
- Mechanical faults with motors, belts or bearings
- Damaged coils beyond cleaning
Not sure which it is? You can phone us on 0345 646 2711, or email photos and we will tell you honestly before you book.
Where we work
- Heating and cooling coils
- Internal panels
- Drain trays
- Supply and extract fans
- Dampers and louvres
- Filter sections
Leafield buildings and their air
Our area takes in London and the South East, Leafield included. Visits are booked around your hours, evenings and weekends included.
For buildings in and around Leafield, TR19® Air cleaning starts with an inspection.
Leafield is about 4 miles north-west of Witney, in Oxfordshire. Leafield gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with pictures. Across Oxfordshire, we cover 443 places, Leafield among them. Our Oxford page covers sites nearby, about 14 miles away.
All of OX29 is within our area for AHU cleaning, from busy streets to back roads. AHU cleaning is available to premises on Hewitts Close, Witney Lane and Chapel Close and nearby roads. Close by, we work in Ascott d'Oyley (2 miles north-west), Ascott-under-Wychwood (2 miles north-west), Crawley (2 miles south-east), Ascott Earl (2 miles north-west) and Chilson (3 miles north). Larger places within reach include Oxford (14 miles south-east), Abingdon-on-Thames (15 miles south-east), Witney (4 miles south-east), Carterton (5 miles south-west), Faringdon (13 miles south) and Kidlington (11 miles east).
Landmarks near Leafield
In Leafield, that means kitchens and buildings near The Fox pub. The nearest railway station is Ascott-Under-Wychwood station, roughly 2.5 miles north-west of the centre. Green spaces nearby include Blenheim Farm.