Oxfordshire · Air handling unit cleaning
Cumnor AHU cleaning
AHU cleaning across Cumnor and nearby, booked around your opening hours and signed off in writing with pictures.
- Air handling units never cleaned inside
- Odours coming through the supply air
- Dirty coils holding back the airflow
What AHU cleaning cannot fix
AHU cleaning cannot fix everything, and we will tell you before any work starts. It does not solve:
- Mechanical faults with motors, belts or bearings
- Ductwork downstream of the unit, which is a separate clean
- Coils that are corroded or leaking and need replacing
Not sure which it is? You can call 0345 646 2711 or use the quote form and we’ll tell you honestly before you book.
What the work covers
- Filter sections
- Heating and cooling coils
- Dampers and louvres
- Internal panels
- Supply and extract fans
- Drain trays
AHU cleaning for kitchens and businesses in Cumnor
We clean the parts of the unit where dirt and moisture gather: the filter section, heating and cooling coils, drain trays, fan and casing. Every clean comes with a TR19® certificate and before and after pictures in a report. Typical jobs include condensate trays that won’t empty and air handling units due a clean after building work, across heating and cooling coils, internal panels and dampers and louvres.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
A written report with pictures follows every visit, so there’s a dated record of the work. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Location
- Cumnor (OX2)
- Wider area
- Oxfordshire
- Paperwork
- Report and pictures after the visit
- Quote
- A fixed price before work begins
- When we work
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
Cumnor buildings and their air
Food Standards Agency records list about 4 hospitals, care homes and childcare premises registered as food businesses within 1.5 miles or so of the middle of Cumnor. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. At about 56 miles from central London, Cumnor sits well inside the area we cover. Visits are booked around your hours, evenings and weekends included. Cumnor’s nearest hospital, Radcliffe Infirmary, is about 3.6 miles north-east. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
Classrooms and halls at schools such as Cumnor Church of England School (Voluntary Controlled) are easiest to work in when pupils are away. Radcliffe Infirmary, about 3.6 miles north-east, is the nearest hospital to Cumnor, and healthcare sites of every size need their supply air kept clean.
Cumnor is about 4 miles north-west of Abingdon-on-Thames, in Oxfordshire. If you need AHU cleaning in Cumnor, please phone us on 0345 646 2711, or email photos for a fixed quote. Our area covers London and the South East, including Cumnor. Cumnor is one of 443 places in Oxfordshire we cover for commercial clients.
Every address in OX2 is covered for AHU cleaning, from the main roads to the quietest streets. You’ll find streets such as High Street, The Park and The Winnyards, all of which we cover for AHU cleaning. We also cover the places around Cumnor: Chawley (1 mile north-east), Filchampstead (1 mile north-west), Henwood (1 mile south-east), Dean Court (2 miles north-east) and Botley (2 miles north-east). We also work in nearby towns such as Oxford (5 miles east), Didcot (9 miles south-east), Bicester (14 miles north-east), Abingdon-on-Thames (4 miles south-east), Witney (8 miles north-west) and Carterton (11 miles west).
Landmarks near Cumnor
We work in commercial kitchens and buildings around The Vine Inn and Matthew Arnold School. The nearest railway station is Oxford station, about 3.1 miles north-east. Nearby you will also find Westgate Shopping Centre (3.3 miles north-east) and Radcliffe Infirmary (3.6 miles north-east). For a walk, there’s Lashford Lane Fen and Cumnor Hill.
Multi-site and managed buildings
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We are happy to deal with either side, and the report can go to both.
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’re happy to quote for all of it.
Common questions in Cumnor
Can a school’s ventilation in Cumnor be done out of term time?
Yes, and it’s the easiest time to do it. With about 2 schools and colleges on the FSA’s register within roughly a mile and a half of Cumnor, it pays to plan holiday dates ahead. Just give us a ring on 0345 646 2711, or send details by email with your term dates and we will plan around them.
Can you get to a site in Cumnor?
Yes, we work in villages as well as towns, and Cumnor is covered. Let us know about access, parking and anything unusual about getting there when you book.
Is there a report after cleaning?
Yes, both a certificate and a report with photos. The report also suggests when the unit should next be inspected.
Can you set up regular visits?
Yes. Scheduled maintenance plans are part of what we do, set at the interval the system needs. The report from each visit recommends the next date.
What information do you need?
Where the site is, what it is and when it’s open, along with a few photos and any previous report.
Can you look after several sites?
Yes. Our area covers London and the South East, so sites at different addresses can be planned together as one programme. Every site has its own report.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Do you repair air handling units?
Our AHU work is cleaning rather than mechanical repair. If we spot a fault, we note it in the report for your maintenance team to follow up.
Nearby places to Cumnor
What else we do in Cumnor
Keeping the system healthy
To keep the system working properly between visits:
- Clear leaves and litter away from the intake
- File each AHU report in the maintenance log
- Check the drain tray is emptying during routine visits
- Diary the inspection date recommended in the report
Restart the unit with your site team or maintenance contractor once we have finished. Check the drain tray is emptying over the first few days to make sure it stays clear.
Make the drain tray part of every maintenance visit. Catching a slow drain early stops standing water building up.
How it works
Everything the job needs comes with us, including protection sheets, the right tools and access kit. 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. A quick note on how to find the site and where to park makes a visit to Cumnor run smoothly.
- We survey the unit from pictures or on site and agree what’s included.
- The unit is shut down with your site team and the area protected.
- Filters, coils, fan section and casing are cleaned in turn.
- We clean out the drain tray and make sure it drains.
- A TR19® certificate and photo report follow the clean.
How to prepare
- Tell us the best time to work, such as after service or at a weekend
- Plan for cooking equipment or plant to be off before we arrive
- Mention any locked doors, roof access or ceiling voids
Get a fixed quote
To get a fixed quote, give us a ring on 0345 646 2711, or send details by email 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.
Read more
Different parts, different methods
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. Cleaning restores the open path through the fins.
Internal casing and panels
We open each section through its doors and close them securely when we are done, and check every one is shut.
In-house cleaning or a specialist?
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
What affects the cost of AHU cleaning
The diagnosis comes before the price. We look at:
- A single visit or a regular plan
- The scale of the work
- Travel, parking and unloading
- The times the site is available
Several systems or sites on one quote often makes better use of the time. Tell us about everything you’d like looked at and we’ll price it together.
What we need to know
You do not need the technical terms. It helps if you can send:
- The times we could work without disrupting the site
- Any access panels or hatches you can see
- Where the site is and what kind of site it is
- The roof, plant room or outside wall the system runs to
Every quote begins with a look at the system, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work so you know the cost before any work starts.