Oxfordshire · Air handling unit cleaning
Air handling unit cleaning in Wytham, Oxfordshire
Our technicians work in Wytham on cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Fixed quotes, work around your opening hours and photo reports on every job.
- Stale or musty smells from the ventilation
- Dust built up on fan impellers
- Debris and leaves in the fresh air intake
How the visit works
The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. It takes from a few hours for a compact unit to a day or more for a large one, and we clear up before we go. For a village or hamlet like Wytham, tell us about narrow lanes, gates and parking when you book.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Before we arrive
- Agree a time when the area can be out of use
- Plan for cooking equipment or plant to be off before we arrive
- Name a contact who can let us in at the agreed time
How to get a quote
Photos are enough for some jobs, while others need a look on site. 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.
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AHU cleaning in Wytham
Units vary a lot in size, age and layout, whether it’s a compact unit in a ceiling void or a big unit on the roof. Every job starts with a survey, from pictures or on site, followed by a fixed quote, so you know where you stand. The work covers dampers and louvres, drain trays and filter sections, and people most often call us about dirty filters cutting the airflow and intake sections clogged with outdoor debris.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, where filters and drain trays get forgotten.
Nothing is signed off by word of mouth: a dated report with photos of the work, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Location
- Wytham (OX2)
- Wider area
- Oxfordshire
- Paperwork
- Written report with pictures
- Price
- A fixed price before any work starts
- Working hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
What AHU cleaning can’t fix
Some problems need a different service or another trade:
- The supply and extract ducts, quoted separately
- Leaking heating or cooling coils
- Ventilation that was badly designed in the first place
Not sure which it is? You can call 0345 646 2711 or email us and we’ll tell you honestly before you book.
Parts of the system we cover
- Heating and cooling coils
- Filter sections
- Dampers and louvres
- Supply and extract fans
- Drain trays
- Internal panels
In-house cleaning or a specialist?
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, and that is where we come in.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That’s our job.
Wytham: your questions answered
Is Wytham in your area for AHU cleaning?
Yes. We work across London and the South East, and Wytham is part of that. You can call 0345 646 2711, or send details by email and tell us what needs doing.
Do you work overnight in Wytham?
Yes, evening, overnight and weekend work is normal for us. It means the site in Wytham keeps running as normal. When you ring 0345 646 2711 or use the quote form, mention when the site is quiet.
How often should an air handling unit be cleaned?
That’s set by inspection, in line with TR19® Air. A hard-working unit, or one serving a hospital or care home, may need cleaning more often.
Are you fully insured?
Yes. Duct Doctor is fully insured, and the details are available on request.
How long will the unit be out of action?
The work takes half a day to a full day per unit, with large plant planned over several shifts. Large plant can be split over several shifts, and you can give us a ring on 0345 646 2711 or drop us a line to plan it.
What types of premises do you cover?
Commercial premises of every kind: kitchens, offices, schools, healthcare, retail, leisure and food production. Work is timed around how each site runs.
Can you come out in an emergency?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we will talk you through the next steps.
How much does AHU cleaning cost?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. We fix the price before work begins.
Between visits
So the system stays in good health:
- Report musty smells from the vents right away
- Report stiff or damaged access doors
- Book the next check in line with the report
- Change filters on schedule and log each change
Stick to the filter change schedule, as that does more than anything to keep the unit clean. Record each change in the maintenance log.
Keep the unit’s doors and panels in working order. Sections that are awkward to open are the ones that get skipped.
What affects the cost of AHU cleaning
There’s no set price list, because no two systems are the same. What we look at:
- Any permits to work or inductions
- Whether it’s a one-off visit or part of a schedule
- Working hours and out-of-hours timing
- The condition we find in the survey
Several systems or sites on one quote can make for a more efficient booking. Tell us about everything you’d like looked at and we’ll price it together.
What to send for a quote
You do not need the technical terms. It helps if you can send:
- Wide photos of the system and the area around it
- The paperwork from the last visit, if you have it
- Where the site is and what kind of site it is
- The times we could work without disrupting the site
Want a quote for AHU cleaning? Please ring 0345 646 2711 or send us an email and tell us about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.
What the work involves, part by part
Fans and fan sections
Before the fan is touched, the unit is shut down and made safe in agreement with the site.
Internal casing and panels
The inside walls and floor of the casing collect dust and debris. We clean each section from intake to discharge.
Also near Wytham
Other services in Wytham
AHU cleaning around Wytham
We cover Wytham, about 56 miles from central London, as part of our work across London and the South East. Evening, overnight and weekend visits are all possible. For Wytham, the closest hospital is Radcliffe Infirmary, roughly 2.4 miles south-east. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
If you manage a school such as Oxford Academy, ventilation cleaning is best booked for the holidays. Healthcare ventilation, from large hospitals like Radcliffe Infirmary (about 2.4 miles south-east) to small clinics, depends on clean filters, coils and ducts.
Wytham is about 4 miles north-west of Oxford, in Oxfordshire. Wytham gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with pictures. Across Oxfordshire, we cover 443 places, Wytham among them.
Postcode districts we cover here for AHU cleaning: OX2. We also cover the places around Wytham: Cassington (2 miles north-west), Botley (2 miles south), Dean Court (2 miles south), Farmoor (2 miles south-west) and Swinford (2 miles west). Within a short drive, we also cover Oxford (4 miles south-east), Didcot (12 miles south), Bicester (11 miles north-east), Abingdon-on-Thames (7 miles south), Witney (8 miles west) and Carterton (12 miles west).
Near you in Wytham
We work in commercial kitchens and buildings around The White Hart pub, among other places. The closest station to Wytham is Oxford Parkway station, about 2.4 miles north-east. Other landmarks nearby include Oxford University Press Museum (2.4 miles south-east) and Oxford Castle and earlier settlement remains (2.7 miles south-east). Open spaces near Wytham include Hook Meadow and The Trap Grounds and Harcourt Hill.
What happens if it’s left?
A clean unit feeds cleaner air into the ductwork, so the whole system stays cleaner for longer. It also means the next inspection has less to find. Planning a trip to Wytham ahead is easier for everyone than a rushed one.
What you pay depends on how big the system is, the condition it’s in and access to every part of it. You get a fixed price before any work starts, so you know where you stand.
Why choose Duct Doctor in Wytham
- Ventilation hygiene specialists since 2009
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Fixed quotes, typically within one working day
- A single point of contact for sites across the South East and London
Take a look at what affects the cost or our accreditations and certificates.