Oxfordshire · Air handling unit cleaning
Shilton AHU cleaning
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Shilton, surveyed first and signed off with a written report and pictures. Call for a fixed quote.
- Filters that are clogged or overdue
- Plant that has been serviced but not cleaned
- Drain trays holding standing water
AHU cleaning in Shilton, done properly
An air handling unit is the heart of a building’s ventilation: it draws air in, filters it, heats or cools it and pushes it round the ductwork. Whatever builds up inside it travels with that air, so cleaning the unit matters as much as cleaning the ducts. The work covers heating and cooling coils, filter sections and drain trays, and the jobs we see most are fan sections that haven’t been cleaned in years and units that have only ever had filter changes.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
Duct Doctor has been trading since 2009, as 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
- Shilton (OX18)
- Region
- Oxfordshire
- Reporting
- Written report with photos
- Price
- A fixed quote up front
- Working hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Common questions in Shilton
Is Shilton within the area you cover?
Yes, Shilton is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.
Do you work at weekends in Shilton?
Yes, nights and weekends are routine for us. Your customers, staff or residents in Shilton needn’t be disturbed. Let us know the hours you’re closed and we will book within them.
Is a quote from photos possible?
Often, yes. With good pictures, the site type and your last report, we can price many jobs. Where we can’t see enough, we arrange a survey.
Do you need to switch the unit off?
Yes. We can’t clean a running unit, so it’s switched off and made safe first. We agree the timing with your site team.
What 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.
Will you repair the fan or motor?
The clean includes noting faults, but repairs sit with your maintenance contractor, with the details in the report.
What’s TR19?
It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It sets out inspection, cleaning and record keeping and expects a risk-based approach.
Which kinds of sites do you work on?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.
What staff can safely do
Staff cleaning does not replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Honest limits
It’s worth knowing the limits before booking:
- Dirty ducts beyond the unit itself
- Building management system faults
- Coils that are corroded or leaking and need replacing
If in doubt, call 0345 646 2711 or use the quote form and we will say what we think.
Parts of the system we cover
- Filter sections
- Internal panels
- Heating and cooling coils
- Dampers and louvres
- Drain trays
- Supply and extract fans
Shilton buildings and their air
Food Standards Agency records list about 10 schools, colleges and universities and about 4 caring premises (care homes, nurseries and hospitals) registered as food businesses across Shilton and its immediate surroundings (about a mile and a half). Buildings like these often rely on mechanical ventilation, which TR19® Air covers.
School buildings such as Carterton Community College are normally done in the holidays, so classrooms aren’t disturbed. An inspection comes first for any ventilation job around Shilton, so the cleaning matches what’s there.
Shilton is about 1 mile north-west of Carterton, in Oxfordshire. We provide AHU cleaning for commercial premises of every kind in Shilton and the rest of Oxfordshire. 443 places in Oxfordshire are on our list, from busy centres to quieter spots. Our Oxford page covers sites nearby, about 16 miles away.
All of OX18 is covered for AHU cleaning, from the main roads to the quietest streets. If you need AHU cleaning at premises on The Hill, Church Lane and Ladburn Lane or anywhere close by, we can help. We also cover Bradwell (1 mile west), Kencot (2 miles south) and Alvescot (3 miles south). Larger places within reach include Witney (5 miles east), Wantage (15 miles south-east), Grove (14 miles south-east), Faringdon (9 miles south), Kidlington (14 miles east) and Chipping Norton (12 miles north).
What’s near Shilton
We work in commercial kitchens and buildings around Carterton Primary School and The Rose And Crown Inn. Nearby you will also find Bronze Age Bowl Barrow (2.9 miles south-east) and Swinford Museum (3.2 miles south-west).
Also in Shilton
Fixed quotes for AHU cleaning in Shilton
The quote reflects the site in front of us. We take into account:
- Any permits to work or inductions
- One-off work versus a regular cycle
- How easy every part is to reach
- The scale of the work
The price reflects the work, not guesswork. That’s why every job is surveyed first, and why the quote is fixed before work begins.
Helping us quote
When you contact us, it’s useful to have:
- The roof, plant room or outside wall the system runs to
- When the site is open and when it’s quiet
- The paperwork from the last visit, if you have it
- Close-ups of filters, grilles, hatches or access panels
To help us quote: where the site is, what it is and its opening hours, pictures of the system and the last certificate or report, if there is one. Once you have those, ring 0345 646 2711, or send details by email.
Between visits
Simple habits between visits make a real difference. Our advice:
- Clear leaves and litter away from the intake
- Check the drain tray is emptying during routine visits
- Keep the certificate and photo report with the plant records
- Stick to the filter change plan
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.
What the work involves, part by part
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. We note any we find in the report.
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.
What we do, step by step
Protection comes first: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. It takes anything from half a day for one small unit to several shifts for a plant room full of them, and the area is cleaned down before we leave. Pictures of the system and its access let us plan the work in Shilton before we set off.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Preparing for the visit
- Tell us about site rules, permits or sign-in
- Let us know when the site is closed or quiet
- Name a contact who can let us in at the agreed time
How to get a quote
Every quote begins with a look at the system, from your pictures and details or, where that is not enough, a survey on site. Then we send a fixed price, before work begins.
Read more
Landlords, agents and facilities managers
When the building owner and the occupier are different, 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.
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we will come back with a fixed quote.