Oxfordshire · Air handling unit cleaning
Air handling unit cleaning in Charndon, Oxfordshire
Our technicians work in Charndon on 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 as standard.
- Dirty coils holding back the airflow
- Debris and leaves in the fresh air intake
- Rooms that smell stuffy when the system runs
About our AHU cleaning in Charndon
Our AHU cleans for sites in Charndon cover the parts that collect dirt: filters, coils, drain trays, fans and the internal panels. Every clean comes with a TR19® certificate and before and after photos in a report. If you’re dealing with fan sections that haven’t been cleaned in years and dirty coils holding back the airflow, we can help, from filter sections, supply and extract fans and drain trays onwards.
In a village or hamlet like Charndon, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
Think of the report as the system’s health record: dated, with pictures, and showing what was done. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal, ready for your insurer.
- Location
- Charndon (OX27)
- Region
- Oxfordshire
- Reporting
- Written report with pictures
- Quotes
- A fixed price before any work starts
- Working hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Updated
- 30 October 2026

Fixed quotes for AHU cleaning in Charndon
Sites vary more than people expect. What affects the quote:
- Site rules, permits and inductions
- Where the site is and how we reach it
- One-off work versus a regular cycle
- What state the system is in
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 make a difference.
Helping us quote
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- Any symptoms, from odd noises to smells or leaks
- Your last certificate, test record or report
- Any access panels or hatches you can see
- Photos showing the whole system and its surroundings
If you need AHU cleaning in Charndon, call 0345 646 2711 or email us. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. We typically send a fixed quote within one working day.
What we do, step by step
The visit has three parts: set-up, the treatment itself and the sign-off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with pictures. The middle part takes longest, and that takes from a few hours for a compact unit to a day or more for a large one. If the van will struggle with a lane or gateway near Charndon, let us know and we’ll plan around it.
- 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.
- We close every panel, hand the unit back and send the report and certificate.
Preparing for the visit
- Move anything stored near the system
- Name a contact who can let us in at the agreed time
- Make sure equipment near the work can be switched off and left to cool
How to get a quote
Every quote begins with a look at the system, either from photos and details you send or from a site visit. Then we send a fixed price, before we start.
Advice
Towns and villages near Charndon
Other services in Charndon
Why act early in Charndon
A slimy drain tray only gets worse. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Clearing it now is a much smaller job. In a place like Charndon, ductwork and fans are easy to forget until something goes wrong.
When the work has to happen, how we reach it and how big the site is can all change the price. We take each of them into account, and the price is fixed before any work starts.
Why us?
- Every visit written up, with photos
- Out-of-hours work and a 24/7 emergency line
- Ventilation hygiene specialists since 2009
- A fixed price before any work starts
See how cleaning jobs are priced and our accreditations and certificates.
Ventilation in Charndon buildings
About 5.9 miles west of Charndon is Bicester Community Hospital, the nearest hospital. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. We cover Charndon, about 49 miles from central London, as part of our work across London and the South East. Evening, overnight and weekend visits are all possible.
In Charndon, we look inside the system before deciding what needs cleaning.
Charndon is about 6 miles east of Bicester, in Oxfordshire. Whatever kind of site you run in Charndon, we can take on AHU cleaning. Visits can be booked for evenings, overnight or weekends so trading is not interrupted. Across Oxfordshire, we cover 443 places, and Charndon is one of them. Oxford is in our area too, about 14 miles from Charndon.
All of OX27 is within our area for AHU cleaning, from the main roads to the quietest streets. Whether your site is on Main Street, Spencer Gardens and Wootton Green or anywhere close by, we can help. Close by, we work in Calvert (1 mile east), Twyford (1 mile north), Poundon (2 miles north-west), Marsh Gibbon (2 miles south-west) and Hillesden (3 miles north). We also work in nearby towns such as Oxford (14 miles south-west), Bicester (6 miles west), Thame (12 miles south), Kidlington (13 miles south-west), Headington Quarry (13 miles south-west) and Bure Park (6 miles west).
Near you in Charndon
Nearby you’ll also find Bicester Community Hospital (5.9 miles west). Not far away are Calvert Jubilee.
Do you need AHU cleaning in Charndon?
Mechanical servicing keeps a unit running, but it does not always include cleaning the inside. That means a unit can tick every service box and still be carrying years of dirt.
Any of these means the system needs a check-up:
- Dirty coils holding back the airflow
- Dirty filters cutting the airflow
- Plant that needs cleaning after a refit
- Intake sections clogged with outdoor debris
Bicester Community Hospital, about 5.9 miles west, is the nearest hospital to Charndon, and healthcare sites of every size need their supply air kept clean.
Before booking anyone
- Whether a survey comes first
- Whether the price is fixed
- Proof of accreditation you can verify
- Whether the work can be done while the site is closed
Looking after it afterwards
Good habits slow the build-up between visits. Our tips:
- Keep the area around the fresh air intake clear
- Do not ignore odours coming through the grilles
- Book the next check in line with the report
- Note any water around the unit or leaks below it
Photos in the report cover the filters, coils, drain tray, fan and casing, along with anything we couldn’t reach. It also notes faults we spotted, such as damaged panels or a blocked drain.
Keep the unit’s doors and panels in working order. If a section is hard to get into, it tends not to get checked.
Questions from Charndon
Can you come to Charndon after we close?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. Your opening times are the first thing we ask for.
Do you cover Charndon for AHU cleaning?
Yes, we work in Charndon and the places around it. Just give us a ring on 0345 646 2711 or drop us a line with a few details of the site.
When should our AHU next be cleaned?
Inspection under TR19® Air decides it. A hard-working unit, or one serving a hospital or care home, may need cleaning more often.
Which sectors do you work in?
Any commercial site with kitchens or ventilation, from a small pub to a hospital. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
How much notice should we give?
It depends on the time you need and how big the job is. Tell us your preferred dates when you ask for a quote, and if it’s an emergency, call us any time.
What does AHU cleaning cost?
It depends on the site, so we quote each one individually. To get one, call 0345 646 2711, or send details by email with the site type, opening hours and a few photos.
What should I send you?
A short description and a few pictures, with the address and opening hours. We’ll ask for anything else we need.
What’s TR19?
A BESA specification in two main parts: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It isn’t law, but it’s the benchmark.
How the job changes from site to site
Filters
Every AHU relies on its filters to catch dust before it reaches the coils. We check them, and clean or change them as agreed in the quote, and the housing around them is cleaned too.
Drain trays
The drain tray collects water from the cooling coil. We clear standing water, clean out slime and check the outlet is draining.
What your team can do, and what needs us
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.