Oxfordshire · Air handling unit cleaning
AHU Cleaning in Fritwell
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for businesses, landlords and public buildings in Fritwell. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Air handling units due a clean after building work
- Dirty coils holding back the airflow
- Units that have only ever had filter changes
AHU cleaning in Fritwell
The fan pushes every bit of air in the system, so dirt on the impeller and housing gets spread around. We clean the fan section along with the rest of the unit, once the unit has been shut down and isolated. We’re often asked to deal with dirty coils holding back the airflow and air handling units due a clean after building work, across heating and cooling coils, dampers and louvres and supply and extract fans.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, which makes them easy to overlook.
Nothing is signed off by word of mouth: a dated report with photos of the work, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Location
- Fritwell (OX27)
- Region
- Oxfordshire
- Records
- Written report with photos
- Quotes
- A fixed quote up front
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Between visits
To keep the system working properly between visits:
- Do not ignore odours coming through the grilles
- Make sure condensate is draining away
- Report water on the plant room floor
- Make sure the unit’s access doors open easily
When we’ve closed the unit up, it can be restarted with your site team. Check the drain tray is emptying over the first few days to make sure it stays clear.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.
What affects the quote in Fritwell
We quote each job individually. These are the things that affect it:
- Whether it’s a one-off visit or part of a schedule
- How many systems or sites are involved
- Travel, parking and unloading
- When the work can happen, such as evenings, overnight or weekends
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you’re not sure what’s needed, give us a ring on 0345 646 2711, or send details by email and we’ll give you an honest view and a fixed quote.
What to send for a quote
Photos and a few facts are often enough to price the work. Send what you can of the following:
- The roof, plant room or outside wall the system runs to
- Photos showing the whole system and its surroundings
- The paperwork from the last visit, if you have it
- Detail shots of panels, filters and grilles
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before work begins.
What we do, step by step
Every visit runs to the same pattern: sheeting and protection first, isolate whatever needs isolating, carry out the AHU cleaning, tidy up and leave you the report. On site, the work takes half a day to a full day per unit, with large plant planned over several shifts. If you can send photos, we can arrive in Fritwell knowing what to expect.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before pictures of each section of the unit.
- 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 photos and issue the certificate and report.
How to prepare
- Clear the space around the work
- Name a contact who can let us in at the agreed time
- Let us know about parking and loading
How to get a quote
There’s no standard price list, because no two systems are the same. We look at your system first, from pictures or on a visit, then send a fixed quote. To start, give us a ring on 0345 646 2711 or drop us a line.
Advice
What AHU cleaning looks like in Fritwell
About 58 miles out from central London, Fritwell is part of the South East area we work across. Evening, overnight and weekend visits are all possible. For Fritwell, the closest hospital is Bicester Community Hospital, roughly 5.4 miles south-east. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
If you run a surgery, dental practice or care home near Fritwell, clean ventilation matters as much to you as to a hospital like Bicester Community Hospital (about 5.4 miles south-east).
Fritwell is about 5 miles north-west of Bicester, in Oxfordshire. If you need AHU cleaning in Fritwell, it’s easy to get a fixed quote: please phone us on 0345 646 2711 or email us. Our area covers London and the South East, Fritwell included. Our area takes in 443 places across Oxfordshire, from busy centres to quieter spots. Our Oxford page covers sites nearby, about 14 miles away.
All of OX27 is covered for AHU cleaning, from the main roads to the quietest streets. Local streets include East Street, Fewcott Road and Hodgson Close, all of which we cover for AHU cleaning. Other places close to Fritwell include Fewcott (1 mile south-east), Souldern (1 mile north), Ardley (1 mile south-east), Somerton (2 miles west) and Upper Heyford (2 miles south-west). Further out, we also cover Oxford (14 miles south), Banbury (9 miles north-west), Bicester (5 miles south-east), Kidlington (10 miles south), Headington Quarry (14 miles south) and Bure Park (5 miles south-east).
Landmarks near Fritwell
Around Fritwell, our work takes us to kitchens and buildings near George and Dragon pub. Fritwell’s nearest station is Heyford station, about 4 miles south-west. A little further out are Ardley Castle (1.4 miles south-east) and Bicester Community Hospital (5.4 miles south-east).
In-house cleaning or a specialist?
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We’ll take a look and give you a fixed quote.
What else we do in Fritwell
Do you need AHU cleaning in Fritwell?
Whatever surrounds a building in Fritwell, the air drawn into its AHU carries dust, pollen and debris. Most of it lands at the intake and the first stage of filters, and the finer material travels on.
Signs it’s time to call us include:
- Units needing a clean before a new tenant or handover
- Dirty fans and fan housings
- Stale or musty smells from the ventilation
- Coils clogged with dust and debris
For schools like Fritwell Church of England Primary School, the holidays are the usual time to inspect and clean ventilation.
Comparing quotes
- Which accreditations they hold, and whether you can check them
- Whether the quote is based on a survey or pictures
- Whether a written report and photos are included
- Whether the figure could change on the day
Questions from Fritwell
Do you work at weekends in Fritwell?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. Tell us your opening hours when you ask for a quote.
Do you offer AHU cleaning in Fritwell?
Yes, we work in Fritwell and the places around it. Just call us on 0345 646 2711 or use the quote form with a few details of the site.
What is TR19?
It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It covers how systems are inspected, cleaned and checked and expects a risk-based approach.
Are you accredited?
We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
How long does it take to clean an air handling unit?
As a guide, it takes a single shift for a typical unit, longer for large or heavily soiled ones. We plan the shutdown around that, out of hours if needed.
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 so your maintenance contractor can deal with it.
What if parts of the system cannot be reached?
They’re marked on the report. In ductwork, new access panels are often the answer, and we can fit those.
How much does AHU cleaning cost in Fritwell?
There’s no set price, as it depends on the job: how big it is, what state it’s in, how we reach it and the working hours. You get a fixed price before work begins.
What the work involves, part by part
Fans and fan sections
Every bit of air passes the fan, so a dirty fan sends dirt downstream. We clean the impeller, housing and surrounding section.
Internal casing and panels
The inside walls and floor of the casing collect dust and debris. We clean each section from intake to discharge.
Multi-site and managed buildings
Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept to a regular schedule.
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 can quote for the whole system.