Oxfordshire · Air handling unit cleaning
AHU Cleaning in Caversfield
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for commercial sites in Caversfield and across Oxfordshire. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Air handling units due a clean after building work
- Dust built up on fan impellers
- Plant that has been serviced but not cleaned
AHU cleaning in Caversfield
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 photos in a report. The work covers filter sections, internal panels and supply and extract fans, and people most often call us about units needing a clean before a new tenant or handover and dirty filters cutting the airflow.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Where
- Caversfield (OX27)
- Wider area
- Oxfordshire
- Reporting
- Photo report after each visit
- Quote
- A fixed quote up front
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Managing agents and facilities teams in Caversfield
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. 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.
We regularly work with managing agents. Tell us the site, the work and the access arrangements and we will come back with a fixed quote.
Also near Caversfield
Other services in Caversfield
What a clean won’t put right
A few issues sit outside what this work can do:
- Controls and BMS settings that run the unit
- Airflow problems caused by the system’s design
- Breakdowns that need a mechanical engineer
If you’re not sure, just call 0345 646 2711, or send details by email and we’ll give you a straight answer.
Where we work
- Dampers and louvres
- Supply and extract fans
- Filter sections
- Drain trays
- Internal panels
- Heating and cooling coils
What AHU cleaning looks like in Caversfield
Food Standards Agency records list about 7 schools, colleges and universities, about 4 care, childcare and hospital premises and about 4 hotels, B&Bs and guest houses registered as food businesses in Caversfield and the streets around it, up to about 1.5 miles out. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Caversfield, about 54 miles from central London, is within our usual area. The visit is fixed around your opening hours, not ours. About 1.8 miles south of Caversfield is Bicester Community Hospital, the nearest hospital. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
Bicester Community Hospital, about 1.8 miles south, is the nearest hospital to Caversfield, and healthcare sites of every size need their supply air kept clean.
Caversfield is about 1 mile north of Bicester, in Oxfordshire. We carry out AHU cleaning for businesses, landlords and public buildings in Caversfield and the rest of Oxfordshire. Across Oxfordshire, we cover 443 places, and Caversfield is one of them. For sites nearby, see our Oxford page, about 12 miles away.
We work across OX27 for AHU cleaning and the roads nearby. If you need AHU cleaning at premises on Orchard Square, Davis Gardens and Thompson Drive or anywhere close by, our technicians can take on the work. We also cover Bure Park (1 mile south-west), Bicester (1 mile south), Stratton Audley (1 mile north-east), Bucknell (2 miles west) and Stoke Lyne (2 miles north-west). We also work in nearby towns such as Oxford (12 miles south), Banbury (13 miles north-west), Thame (14 miles south-east), Kidlington (9 miles south-west), Headington Quarry (11 miles south) and St John Street area (12 miles south-west).
Around Caversfield
Around Caversfield, our work takes us to kitchens and buildings near Cooper School and The White Horse pub, among other places. The closest station to Caversfield is Bicester North station, about 1.2 miles south of the centre. Other landmarks nearby include Ardley Castle (3.4 miles north-west) and Bicester Community Hospital (1.8 miles south). Open spaces near Caversfield include Graven Hill.
Why act early in Caversfield
A light clean now is simpler than a heavy one later. Years of build-up make the job longer and harder, especially where there’s been moisture. With notice, the visit to Caversfield can be fitted around your bookings and events.
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
What you get with us
- Work around your opening hours, with 24/7 emergency cover
- CHAS, SafeContractor and ISO 9001
- Fully insured
- One number for every site across the South East and London
Read our cost guide or how to check a contractor.
How it works
Everything the job needs comes with us, from protective sheeting to tools and access equipment. All we need from you is clear access and the right equipment switched off. On site, the work takes from a few hours for a compact unit to a day or more for a large one. A few photos of the system help us make the most of a visit to a place like Caversfield.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before photos of each section of the unit.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- After pictures are taken and the certificate issued.
Before we arrive
- Clear loose items from the work area
- Mention any parking or loading restrictions
- Plan for cooking equipment or plant to be off before we arrive
Ask for a quote
For AHU cleaning in Caversfield, call us on 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 usually send a fixed quote within one working day.
Related advice
In-house cleaning or a specialist?
Staff cleaning and specialist work are not the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
Questions from Caversfield
Do you clean school ventilation in Caversfield in the holidays?
Yes, and it’s the easiest time to do it. There are about 7 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Caversfield. Booking early in the term gives the best choice of holiday dates.
Can the work in Caversfield be done at night or at weekends?
Yes. We work evenings, overnight and at weekends. The work in Caversfield can fit around your hours. Just phone us on 0345 646 2711 or send us an email with your opening times and we will plan around them.
What do you need from me for a quote?
The site address, the type of premises and your opening hours, plus photos of the system and your last certificate or report if you have one.
Is there a survey before the work?
Yes. Every job is surveyed first, either from photos and details you send or on a site visit. Then you get a fixed quote.
What happens if you cannot reach some of it?
The report shows them clearly. In ductwork, new access panels are often the answer, and we can fit those.
How much notice do you need?
For planned work, earlier is better, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Can you quote from pictures?
Yes, for many jobs. Send wide shots, close-ups of any access panels and anything that worries you, and a fixed quote usually follows within one working day. If pictures are not enough, we’ll survey first.
Signs you need AHU cleaning in Caversfield
Cooling coils create condensation, and that water has to go somewhere. If the drain tray outlet blocks or the tray doesn’t fall properly, water stands in it, and that is where slime and odours start.
Most sites get in touch after spotting one of these:
- Coils clogged with dust and debris
- Dust built up on fan impellers
- Odours coming through the supply air
- Intake sections clogged with outdoor debris
School buildings such as Southwold County Primary School are usually done in the holidays, so classrooms aren’t disturbed.
Questions to ask before you book
- What happens if part of the system cannot be accessed
- What hours they’ll be on site
- Whether the figure could change on the day
- Whether they’re fully insured
What affects the cost of AHU cleaning
The diagnosis comes before the price. The main factors are:
- The number of sites or systems
- How big the system is
- A single visit or a regular plan
- Whether we need access equipment or extra panels
When the work has to happen, how we reach it and how big the site is all affect the cost. We take each of them into account and give you a fixed price before any work starts.
Asking for a quote
When you contact us, these details help:
- Where the site is and what kind of site it is
- Any access panels or hatches you can see
- The paperwork from the last visit, if you have it
- Wide pictures of the system and the area around it
To get a fixed quote, ring 0345 646 2711 or send us an email with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. You’ll normally have a quote within one working day.