Oxfordshire · Air handling unit cleaning
Air handling unit cleaning in Lewknor, Oxfordshire
AHU cleaning for Lewknor, with a survey first and a report with photos at the end. Call for a fixed quote.
- Dust-coated heating and cooling coils
- Units that have only ever had filter changes
- Stale or musty smells from the ventilation
Ventilation in Lewknor buildings
About 39 miles out from central London, Lewknor is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you. About 5 miles north of Lewknor is Thame Community Hospital, the nearest hospital. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
Healthcare buildings such as Thame Community Hospital, about 5 miles north, depend on their ventilation; if you manage a surgery, clinic or care home near Lewknor, yours matters too. Classrooms and halls at schools such as Lewknor Church of England Primary School are easiest to work in when pupils are away.
Lewknor is about 5 miles south of Thame, in Oxfordshire. Lewknor gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with photos. We cover 443 places across Oxfordshire, large and small. You can also see our page for Oxford, roughly 12 miles from Lewknor.
Every address in OX49 is covered for AHU cleaning, from the main roads to the quietest streets. We cover sites on High Street, Weston Road and Lewknor Close and the roads around them. Nearby, we also carry out AHU cleaning in South Weston (1 mile north-west), Aston Rowant (1 mile north-east), Postcombe (1 mile north), Shirburn (1 mile south-west) and Kingston Blount (2 miles north-east). Larger places within reach include Oxford (12 miles north-west), Didcot (13 miles west), Abingdon-on-Thames (13 miles west), Thame (5 miles north), Henley-on-Thames (10 miles south) and Benson (7 miles south-west).
What’s near Lewknor
Locally, jobs take us to businesses close to Ye Olde Leathern Bottle Public House and Icknield Community College and the streets around them. Well-known places in the area include Thame Community Hospital (5 miles north). Green spaces nearby include Aston Rowant NNR and Bald Hill.
AHU cleaning for kitchens and businesses in Lewknor
Where a building in Lewknor has had little more than filter changes, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full AHU clean takes in the whole unit. The work covers supply and extract fans, heating and cooling coils and drain trays, and the jobs we see most are drain trays holding standing water and air handling units with blocked filters.
For a building in or near Lewknor, access is agreed in advance and the visit is planned around the journey.
Every visit ends with a written report and pictures, so you have a record of what was done and when. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.

- Place
- Lewknor (OX49)
- Region
- Oxfordshire
- Reporting
- Report and pictures after the visit
- Quote
- A fixed quote up front
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Towns and villages near Lewknor
Also in Lewknor
Looking after it afterwards
So the system stays in good health:
- Do not store bins or materials near the intake
- Keep inspection doors on the unit in good order
- Report water on the plant room floor
- Store the TR19 paperwork where auditors can find it
Restart the unit with your site team or maintenance contractor once we’ve finished. Keep an eye on the condensate drain over the next few days to confirm water is draining away.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air, rather than waiting for a problem.
Multi-site and managed buildings
Multi-site operators often want one contractor and one number. We work across London and the South East, so visits at different addresses can be planned together and kept to a regular schedule.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.
The process
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Afterwards, the area is left tidy and the written report follows. In a small place like Lewknor, the journey is planned ahead and the visit arranged around the site’s hours.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Tell us where we can park and unload
- Make sure someone can let us in and lock up afterwards
- Mention any sign-in, permit or induction we need
Getting a quote
Every quote begins with a look at the system, either from photos 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 work begins.
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Lewknor: your questions answered
Can you get to a site in Lewknor?
Yes. Lewknor is within the area we cover across London and the South East. Just mention lanes, gates or anything else about the site when you book.
Do you work at weekends in Lewknor?
Yes, we can come after you close and finish before you open. It means the site in Lewknor keeps running as normal. Let us know the hours you are closed and we will book within them.
Will we get paperwork for the AHU clean?
Yes. A TR19® certificate and photo report are sent after the clean, with any faults we noticed.
Do you offer maintenance contracts?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, depending on what the system needs.
Can you come out in an emergency?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we’ll talk you through the next steps.
What happens if you can’t reach some of it?
We never leave them off the paperwork. You’ll know exactly which parts weren’t reached and why, and we can quote to improve the access.
What does AHU cleaning cost?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. We fix the price before work begins.
What types of premises do you cover?
All kinds of commercial and public premises: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.
Honest limits
Not every problem is solved by AHU cleaning, and we’d rather say so up front. It will not put right:
- Ductwork downstream of the unit, which is a separate clean
- Coils that are corroded or leaking and need replacing
- Problems with the unit’s controls or sensors
Not sure which it is? You can call 0345 646 2711 or email us and we will tell you honestly before you book.
Parts of the system we cover
- Dampers and louvres
- Internal panels
- Heating and cooling coils
- Drain trays
- Filter sections
- Supply and extract fans
What affects the cost of AHU cleaning
The quote reflects the site in front of us. We consider:
- The times the site is available
- What state the system is in
- How easy every part is to reach
- Where the site is and how we reach it
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we will go through it with you.
What we need to know
We can often survey from photos. The most useful are:
- A few general shots of the system
- Your last certificate, test record or report
- Detail shots of panels, filters and grilles
- How we’d reach plant on a roof or in a plant room
There’s no standard price list, because no two systems are the same. We look at your system first, from photos or on a visit, then send a fixed quote. To get going, call 0345 646 2711 or email us.
What the work involves, part by part
Internal casing and panels
Dust settles on every internal surface of the unit. We clean each section from intake to discharge.
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. We clean the intake and first stage of filters along with the rest.
Staff cleaning versus specialist work
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but they don’t reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.