Oxfordshire · Air handling unit cleaning
Air handling unit cleaning in Holton, Oxfordshire
Air handling unit cleaning for businesses, landlords and public buildings in Holton. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Dust-coated heating and cooling coils
- Odours coming through the supply air
- Dirty filters cutting the airflow
Different parts, different methods
Internal casing and panels
The inside walls and floor of the casing collect dust and debris. We clean each section from intake to discharge.
Rooftop and plant room units
Units on roofs and in plant rooms can be awkward to reach. Access is planned during the survey, before we quote.
About our AHU cleaning in Holton
Our AHU cleaning covers sites in Holton and the rest of Oxfordshire, in buildings such as offices, schools, healthcare sites and shops. The work is timed around when the system can be switched off, including evenings, nights and weekends. The work covers heating and cooling coils, supply and extract fans and internal panels, and common reasons people get in touch are air handling units with blocked filters and fan sections that haven’t been cleaned in years.
For a building in or near Holton, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
The paperwork matters as much as the work. Each visit is written up with pictures, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Location
- Holton (OX33)
- Region
- Oxfordshire
- Paperwork
- Written report with photos
- Price
- A fixed price before we start
- Working hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026

Honest limits
It’s worth knowing the limits before booking:
- Problems with the unit’s controls or sensors
- Mechanical faults with motors, belts or bearings
- The supply and extract ducts, quoted separately
If you are not sure, just give us a ring on 0345 646 2711 or use the quote form and we will give you a straight answer before you book.
What the work covers
- Drain trays
- Supply and extract fans
- Heating and cooling coils
- Dampers and louvres
- Internal panels
- Filter sections
Aftercare tips
To keep the system working properly between visits:
- Look at the condensate drain whenever the unit is serviced
- Note any water around the unit or leaks below it
- Don’t ignore odours coming through the grilles
- Clear leaves and litter away from the intake
We recommend when the unit should next be inspected or cleaned, taking into account how dirty it was. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.
FAQs for Holton
Do you work overnight in Holton?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. Just call 0345 646 2711 or email us with your opening times and we will plan around them.
Do you cover Holton for AHU cleaning?
Yes, Holton is within the area we cover across London and the South East. Just ring 0345 646 2711 or send us an email with a few details of the site.
What about areas you can’t get to?
We never leave them off the paperwork. The report says which parts couldn’t be reached and why, along with a quote to put access in.
When should our AHU next be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. We recommend a next date in each report.
Do you have insurance?
Yes. Full insurance covers our work and have been trading since 2009.
What accreditations do you have?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we are fully insured.
How much notice do you need?
For planned work, earlier is better, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
Do you do ventilation duct cleaning too?
Yes, the ductwork, grilles and diffusers the unit serves. The survey shows whether the ducts need cleaning now.
What affects the cost of AHU cleaning
The quote reflects the site in front of us. We consider:
- The condition we find in the survey
- The times the site is available
- Site rules, permits and inductions
- Parking and loading at the site
Every site is different, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all play a part.
What we need to know
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- When the site is open and when it’s quiet
- A few general shots of the system
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Problems your staff have spotted
Quoting starts with a diagnosis, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price, before any work starts.
More services for Holton
For landlords and multi-site operators
Facilities teams in offices, schools and healthcare sites book us too across Oxfordshire. Work can be phased by floor, building or site to keep disruption down.
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 are happy to quote for all of it.
AHU cleaning around Holton
The FSA’s food hygiene register lists about 4 hospitals, care homes and childcare premises with registered kitchens or food service within about 1.5 miles of central Holton. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. About 2.8 miles west of Holton is Slade Hospital, the nearest hospital. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. Holton, about 48 miles from central London, is within our usual area. Evening, overnight and weekend visits are all possible.
School buildings such as Wheatley Park School are usually done in the holidays, so classrooms aren’t disturbed.
Holton is about 4 miles east of Oxford, in Oxfordshire. For AHU cleaning in and around Holton, please call 0345 646 2711 or use the quote form for a fixed quote. We work across South East England and London, including Holton. 443 places in Oxfordshire are on our list, from busy centres to quieter spots.
All of OX33 is within our area for AHU cleaning, from busy streets to back roads. We also cover the places around Holton: Wheatley (1 mile south), Littleworth (1 mile south-west), Forest Hill (1 mile north-west), Horspath (2 miles south-west) and Stanton St John (2 miles north-west). Further out, we also cover Oxford (4 miles west), Didcot (11 miles south-west), Bicester (10 miles north), Abingdon-on-Thames (8 miles south-west), Witney (15 miles west) and Thame (7 miles east).
Local landmarks in Holton
Locally, jobs take us to businesses close to Wheatley Church of England Primary School and The Sun Inn, among other places. Other landmarks nearby include Waterperry Gardens Rural Museum (2 miles east) and Templars Square (3.8 miles south-west). The countryside around Holton includes Shotover and CS Lewis Nature Reserve.
How the visit works
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Afterwards, the area is left tidy and the written report follows. If you can send pictures, we can arrive in Holton knowing what to expect.
- We start with a survey of the unit and a fixed quote for the work.
- 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.
- We clean out the drain tray and make sure it drains.
- A TR19® certificate and photo report follow the clean.
Before we arrive
- Mention any locked doors, roof access or ceiling voids
- Agree a time when the area can be out of use
- Move anything stored near the system
How to get a quote
There’s no standard price list, because every site is different. We look at your system first, from photos or on a visit, and then send you a fixed quote. To start, give us a ring on 0345 646 2711 or email us.
Related advice
Common problems we fix in Holton
No filter stops everything. What gets through settles on coils, fans and the inside of the casing, a little more each month.
It’s time to book a visit if you see:
- Rooms that smell stuffy when the system runs
- Intake sections clogged with outdoor debris
- Dust-coated heating and cooling coils
- Air handling units never cleaned inside
If you run a surgery, dental practice or care home near Holton, clean ventilation matters as much to you as to a hospital like Slade Hospital (about 2.8 miles west).
Comparing quotes
- Proof of accreditation you can verify
- Whether the whole system is included, or only the parts that are easy to reach
- When they can work, and whether that’s outside your opening hours
- Whether the quote is based on a survey or pictures