Oxfordshire · Air handling unit cleaning
AHU Cleaning in Faringdon
We cover Faringdon for cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Out-of-hours visits, a fixed quote and a written report with photos on every job.
- Air handling units with blocked filters
- Dirty coils holding back the airflow
- Air handling units due a clean after building work
Faringdon questions
Is Faringdon in your area for AHU cleaning?
Yes, we work in Faringdon and the places around it. A fixed quote normally follows within one working day of the survey details.
Do you work in villages like Faringdon?
Yes, we work in villages as well as towns, and Faringdon is covered. The journey is planned ahead, so a few details about the route help.
Can you price the work without visiting?
Yes, where the pictures show enough. Otherwise, we book a survey at a time that suits the site, and the quote follows that.
How long will the unit be out of action?
Typically the clean takes from a few hours for a compact unit to a day or more for a large one. The shutdown is planned to fit, including evenings or weekends.
Can you look after several sites?
Yes. Tell us the addresses and what each needs and you will get one fixed quote.
Will we get paperwork for the AHU clean?
Yes. You get a TR19® certificate plus before and after photos. Keep them in the maintenance log.
What do you need from me for a quote?
Only a few details: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. After that, simply call 0345 646 2711, or email photos.
What do you do with what you remove?
We take it away when we go. During the work, it’s contained to keep the area clean.
About our AHU cleaning in Faringdon
An air handling unit is the heart of a building’s ventilation: air is pulled in, filtered, conditioned and sent out through the ducts. Anything that collects inside the unit can end up in the rooms it serves, which is why we clean the unit itself, not just the ducts. Common call-outs are for leaves and litter drawn into the unit and air handling units never cleaned inside, on supply and extract fans, filter sections and dampers and louvres.
In a smaller place like Faringdon, buildings with ducted ventilation are more likely to be a school, a surgery, a care home or a small business unit than an office block. Smaller systems still gather dust and need inspecting.
A written report with photos follows every visit, so you have a record of what was done and when. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Where
- Faringdon (SN7)
- Region
- Oxfordshire
- Paperwork
- Written report with pictures
- Quote
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026

Aftercare tips
Good habits slow the build-up between visits. Our tips:
- Diary the inspection date recommended in the report
- Report stiff or damaged access doors
- Store the TR19 paperwork where auditors can find it
- Do not store bins or materials near the intake
When we’ve closed the unit up, it can be restarted with your site team. Check the drain tray is emptying over the first few days to make sure it stays clear.
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 we do, step by step
Our technicians bring everything the work needs, from protective sheeting to tools and access equipment. You only need to give us clear access and switch off what needs to be off. On site, the work takes one overnight shift for many single units, with bigger plant phased. Your opening hours decide when we come to Faringdon, not ours.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- 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
- Clear the space around the work
- Plan for cooking equipment or plant to be off before we arrive
- Mention any parking or loading restrictions
Get a fixed quote
Quoting starts with a diagnosis, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work, before work begins.
Advice
Why deal with it now?
Dirty coils and fans make the unit strain to move the same air. The result is extra wear and a building that doesn’t feel as comfortable, and a clean on your terms beats a breakdown on nobody’s. Booking ahead lets us plan the trip to Faringdon at a time that suits you.
What you pay reflects the actual work. That’s why we survey first, from pictures or on site, and the price is agreed before we start.
Why choose Duct Doctor in Faringdon
- CHAS and SafeContractor accredited, with ISO 9001
- One number for every site across the South East and London
- Work around your opening hours, with 24/7 emergency cover
- Full insurance on every job
See how cleaning jobs are priced and our accreditations and certificates.
Places near Faringdon
More services for Faringdon
Different parts, different methods
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. A clean fan runs more smoothly.
Drain trays
A tray that doesn’t drain becomes a pool of stagnant water in the airstream. We clean it and note if the slope or the drain needs attention.
Fixed quotes for AHU cleaning in Faringdon
Your quote is based on your site. We consider:
- The size of the system
- A single visit or a regular plan
- Access, including roofs, risers and ceiling voids
- Whether several sites go on one quote
Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we’ll explain each part.
What we need to know
What to send for a quote:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Your opening hours and when the area is out of use
- The site address and the type of premises
- Wide pictures of the system and the area around it
For a fixed quote, give us a ring on 0345 646 2711, or email photos and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. We normally come back within one working day.
Ventilation in Faringdon buildings
Going by the FSA’s register, there are about 3 hospitals, care homes and childcare premises serving food in Faringdon and the streets around it, up to about 1.5 miles out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Faringdon Day Hospital is the nearest hospital, about under half a mile north of Faringdon. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
Classrooms and halls at schools such as Faringdon Community College are easiest to work in when pupils are away. Faringdon Day Hospital, about within half a mile north, is the nearest hospital to Faringdon, and healthcare sites of every size need their supply air kept clean.
Faringdon is about 10 miles south-west of Witney, in Oxfordshire. We carry out AHU cleaning for commercial premises of every kind in Faringdon and the rest of Oxfordshire. Across Oxfordshire, we cover 443 places, and Faringdon is one of them. Oxford is in our area too, about 17 miles from Faringdon.
We work across the SN7 postcode area for AHU cleaning and the roads nearby. Local streets include Station Road, Marlborough Gardens and Marlborough Close, and we cover them all for AHU cleaning. Faringdon is on the A417 and A4095, which makes it straightforward for our technicians to reach for out-of-hours visits. Close by, we work in Little Coxwell (1 mile south), Fernham (2 miles south), Shellingford (2 miles south-east), Hatford (3 miles east) and Baulking (3 miles south-east). We also work in nearby towns such as Didcot (15 miles east), Abingdon-on-Thames (13 miles east), Witney (10 miles north-east), Carterton (8 miles north), Wantage (8 miles south-east) and Grove (8 miles south-east).
Near you in Faringdon
Typical jobs here are in premises near Faringdon Infant School and The Swan pub and the streets around them. Other landmarks nearby include Faringdon Day Hospital (within half a mile north) and Faringdon Castle (0.8 miles north-east). For a walk, there’s Badbury Hill.
When something else is needed
We’d rather tell you now than book work that won’t help, so these are the things it won’t cover:
- Problems with the unit’s controls or sensors
- Damaged coils beyond cleaning
- Mechanical faults with motors, belts or bearings
Not sure which it is? You can phone us on 0345 646 2711 or drop us a line and we’ll tell you honestly before you book.
What the work covers
- Supply and extract fans
- Dampers and louvres
- Filter sections
- Heating and cooling coils
- Drain trays
- Internal panels
Staff cleaning versus specialist work
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. Leave those to us.
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.