Oxfordshire · Air handling unit cleaning
Bicester AHU cleaning
AHU cleaning in Bicester from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Dust-coated heating and cooling coils
- Blocked condensate drains and slimy trays
- Intake sections clogged with outdoor debris
AHU cleaning in Bicester, done properly
Heating and cooling coils trap dust that gets past the filters. A coated coil restricts airflow and makes the unit work harder. We clean coils with methods suited to their condition, taking care not to damage the fins. Common call-outs are for blocked condensate drains and slimy trays and filters that are clogged or overdue, across heating and cooling coils, drain trays and internal panels.
In a town like Bicester, ventilation cleaning typically means offices, schools, surgeries, care homes and leisure buildings. Their supply and extract ducts all gather dust over time, and TR19® Air sets out how to inspect and clean them.
The sign-off is always in writing: a dated report with pictures of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.
- Where
- Bicester (OX26, OX27)
- Wider area
- Oxfordshire
- Reporting
- Report and photos after the visit
- Quote
- A fixed price before work begins
- Hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
How we price AHU cleaning
A fixed price needs a few facts first. We check:
- Where the site is and how we reach it
- A single visit or a regular plan
- The size of the system
- How many systems or sites are involved
One small site or a whole estate, we price it on the same basis: what needs doing, how we get to it and when. You will have a fixed price before work begins.
What we need to know
Photos let us diagnose from a distance. The most useful are:
- The postcode and the type of business
- The paperwork from the last visit, if you have it
- A few general shots of the system
- The roof, plant room or outside wall the system runs to
The quickest way to a quote is to send pictures: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
What the work involves, part by part
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. The intake section gets particular attention.
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. A clean fan runs more smoothly.
Ventilation in Bicester buildings
There are about 10 schools, colleges and universities, about 7 caring premises (care homes, nurseries and hospitals) and about 5 hotels and guest houses on the FSA’s food hygiene register across Bicester and its immediate surroundings (about a mile and a half). Busy, occupied buildings like these are where clean supply air matters most. Bicester, about 53 miles from central London, is within our usual area. Visits are booked around your hours, evenings and weekends included. The nearest hospital to Bicester is Bicester Community Hospital, about less than half a mile south. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
For schools like Brookside Primary School, the holidays are the usual time to inspect and clean ventilation. Healthcare ventilation, from large hospitals like Bicester Community Hospital (about within half a mile south) to small clinics, depends on clean filters, coils and ducts. For workplaces around Bicester North station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Bicester is about 11 miles north of Oxford, in Oxfordshire. If you need AHU cleaning in Bicester, please call 0345 646 2711, or email photos for a fixed quote. We work across South East England and London, Bicester included. Our area takes in 443 places across Oxfordshire, from busy centres to quieter spots. For sites nearby, see our Oxford page, about 11 miles away.
Postcode districts we cover here for AHU cleaning: OX26 and OX27. That includes premises on Market Square, Market End Way and London Road and the roads around them. Bicester sits on or near the A4095 and B4100, which makes travel easy for evening and night visits. Other places close to Bicester include Bure Park (1 mile north), Caversfield (1 mile north), Bucknell (2 miles north-west), Stratton Audley (3 miles north-east) and Stoke Lyne (3 miles north). Further out, we also cover Oxford (11 miles south), Banbury (14 miles north-west), Thame (13 miles south-east), Kidlington (8 miles south-west), Headington Quarry (10 miles south) and St John Street area (11 miles south-west). As one of the bigger places in Oxfordshire, Bicester has a wide mix of commercial premises, and we cover all of them for AHU cleaning.
Around Bicester
We work in commercial kitchens and buildings around Bicester Technology Studio and The Plough pub. There’s a railway station in Bicester itself: Bicester North station. Well-known places in the area include Bicester Community Hospital (less than half a mile south) and Bicester Village (0.7 miles south). Green spaces nearby include Graven Hill and Woodsides Meadow.
The process
We start by comparing what we find with the survey or your photos. Anything unexpected is raised with you before we go further. From there, it takes half a day to a full day per unit, with large plant planned over several shifts. The more we can see of the system beforehand, the smoother the visit to Bicester will be.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- We take after pictures and issue the certificate and report.
Before we arrive
- Arrange a key holder or contact on site
- Move anything stored near the system
- Let us know about permits to work or site inductions
Ask for a quote
For AHU cleaning in Bicester, call 0345 646 2711 or use the quote form. Let us know the site type and the opening hours, plus pictures or the previous report if they’re to hand. We normally send a fixed quote within one working day.
Read more
When it’s something else
A few issues sit outside what this work can do:
- Ventilation that was badly designed in the first place
- Problems with the unit’s controls or sensors
- Leaking heating or cooling coils
If in doubt, call us on 0345 646 2711 or drop us a line and we will say what we think.
Where we work
- Filter sections
- Heating and cooling coils
- Dampers and louvres
- Supply and extract fans
- Drain trays
- Internal panels
Leave it or put it right?
A light clean now is simpler than a heavy one later. Leave it for years and dirt bakes onto coils and casings, particularly where damp has made it stick. Booking now keeps it a routine visit to Bicester rather than an urgent one.
What you pay reflects the actual work. That’s why every job is surveyed first, and why the quote is fixed before work begins.
Why book with us
- A single point of contact for sites across the South East and London
- We diagnose before we treat
- Accredited under CHAS and SafeContractor, with ISO 9001
- Photo reports with every job
See our cost guide or our accreditations.
Aftercare tips
Results last longer with the right care. Here’s what we suggest:
- Keep the certificate and photo report with the plant records
- Report musty smells from the vents right away
- Stick to the filter change plan
- Look at the condensate drain whenever the unit is serviced
Restart the unit with your site team or maintenance contractor once we’ve finished. Check the drain tray is emptying over the first few days to confirm water is draining away.
Keep the area around the intake clear. What’s near the intake ends up in the unit.
Bicester: your questions answered
Do you clean school ventilation in Bicester in the holidays?
Yes. The holidays are the usual time for school work. The FSA’s register shows about 10 schools and colleges with food registrations within roughly a mile and a half of Bicester. Tell us your holiday dates and we will book the visit for when the site is empty.
Do you work overnight in Bicester?
Yes, out-of-hours work is a big part of what we do. The site is handed back ready to open. Tell us your opening hours when you ask for a quote.
How do you keep the site clean during the work?
We start with protection: floor sheeting and covers over nearby surfaces and equipment. The area is left tidy, with our waste taken away.
What do you clean inside the unit?
We clean the filter section, heating and cooling coils, drain trays, fan and internal casing. What happens to the filters is agreed when we quote.
What’s TR19?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Do you offer emergency callouts?
Yes, day and night, every day of the year. Our office is open from 8am to 6pm on weekdays, with the emergency line covering every other hour.
Which accreditations do you hold?
Our accreditations are CHAS, SafeContractor and ISO 9001, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
What information do you need?
Only a few details: where it is, what kind of site, when it’s open and the access. Photos and the last report help too. Then give us a ring on 0345 646 2711 or use the quote form.
Also near Bicester
Other services in Bicester
Multi-site and managed buildings
Records are where multi-site compliance often slips. Each visit ends with a dated report and photos, ready to show insurers, fire officers or EHOs.
We also work for facilities teams across offices, schools and healthcare in Bicester and across Oxfordshire. Larger estates can be phased building by building around the people who use them.