Oxfordshire · Air handling unit cleaning
AHU Cleaning in Bletchingdon
One call covers cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Bletchingdon, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Dirty coils holding back the airflow
- Intake sections clogged with outdoor debris
- Dirty fans and fan housings
How we handle AHU cleaning in Bletchingdon
An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with photos, so the report shows exactly what was done. Typical jobs include filters that are clogged or overdue and units that have only ever had filter changes, across filter sections, dampers and louvres and supply and extract fans.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
Good records are part of the job. You get a written report with pictures after each visit, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Place
- Bletchingdon (OX5)
- Wider area
- Oxfordshire
- Paperwork
- Report and pictures after the visit
- Price
- Fixed quote, typically within a working day
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
Do you need AHU cleaning in Bletchingdon?
An overdue filter loads up with dirt, which cuts the airflow and can let air slip round the filter. Then the rest of the unit takes the load.
It’s time to book a visit if you see:
- Intake sections clogged with outdoor debris
- Dirty filters cutting the airflow
- Dirty coils holding back the airflow
- Blocked condensate drains and slimy trays
If you manage a school such as Bletchingdon Parochial Church of England Primary School, ventilation cleaning is best booked for the holidays.
Comparing quotes
- Whether they recommend a next date
- Whether the quote shows VAT
- What paperwork you get at the end
- If the quote is a fixed price or an estimate
Why it’s worth doing now in Bletchingdon
Leave an AHU uncleaned and the dirt does not stay put. It moves on into the ductwork and out into the rooms, which is why the unit and the ducts are best cleaned together. A planned visit to Bletchingdon is easier to arrange than an emergency callout.
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’ll have a fixed price before any work starts.
Why us?
- Every job surveyed first
- One contact for all your sites in London and the South East
- Photo reports with every job
- Accredited under CHAS and SafeContractor, with ISO 9001
Take a look at how cleaning jobs are priced and how to check a contractor.
Bletchingdon questions
Do you work overnight in Bletchingdon?
Yes, we can come after you close and finish before you open. The work in Bletchingdon can fit around your hours. Let us know the hours you are closed and we will book within them.
Can you get to a site in Bletchingdon?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
Do you give a certificate after the clean?
Yes. A TR19® certificate and photo report are sent after the clean, with any faults we noticed.
Do you do ventilation duct cleaning too?
Yes. Ductwork is cleaned through access panels, and any sections we can’t reach are noted in the report, and new panels can be fitted.
What is TR19?
BESA’s ventilation hygiene specification in two main parts: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It is not legislation, but it’s the standard people check against.
Can we book visits on a schedule?
Yes. Send details of the systems and how they’re used, and we’ll suggest a schedule and quote for it.
What’s included in an AHU clean?
Everything inside the unit that air passes over, from intake to discharge, including coils, fan and drain trays. The photo report shows each section before and after.
Do you survey before quoting?
Yes, always. Diagnosis comes before treatment: the survey shows what needs doing and what access we need and the fixed quote is built on it.
How it works
The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. The work on site takes from a few hours for a compact unit to a day or more for a large one, and we clear up before we go. Somewhere as small as Bletchingdon, the date and timings are agreed with you well before the day.
- First the unit is surveyed, from pictures or a visit, and the scope agreed.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Drain trays are cleared and cleaned and the outlet checked.
- You get a TR19® certificate and a photo report.
How to prepare
- Move anything stored near the system
- Find the previous report, if there is one
- Plan for cooking equipment or plant to be off before we arrive
Get a fixed quote
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, the quote is fixed before any work is booked.
Advice
AHU cleaning around Bletchingdon
About 5.7 miles north-east of Bletchingdon is Bicester Community Hospital, the nearest hospital. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. About 56 miles out from central London, Bletchingdon is part of the South East area we work across. The visit is fixed around your opening hours, not ours.
Bicester Community Hospital, about 5.7 miles north-east, is the nearest hospital to Bletchingdon, and healthcare sites of every size need their supply air kept clean.
Bletchingdon is about 6 miles south-west of Bicester, in Oxfordshire. Sites in Bletchingdon get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with photos. Our Oxfordshire coverage runs to 443 places, and Bletchingdon is one of them. There’s also a page for Oxford, about 7 miles away.
Work in OX5 follows the same survey, fixed quote and written report as everywhere else we cover. That includes premises on Station Road, St Giles and Annesley Close and the roads around them. We also cover the places around Bletchingdon: Enslow (1 mile west), Kirtlington (1 mile north), Hampton Poyle (1 mile south), Weston-on-the-Green (2 miles east) and Kidlington (2 miles south). Further out, we also cover Oxford (7 miles south), Banbury (15 miles north), Bicester (6 miles north-east), Abingdon-on-Thames (12 miles south), Witney (10 miles south-west) and Carterton (15 miles south-west).
Near you in Bletchingdon
Around Bletchingdon, our work takes us to kitchens and buildings near The Blacks Head Public House and the streets around them. Bletchingdon’s nearest station is Tackley station, roughly 2.1 miles north-west. Nearby you will also find Bicester Community Hospital (5.7 miles north-east) and Soldiers of Oxfordshire Museum (3.6 miles west). For a walk, there’s Woodsides Meadow.
Part by part
Filters
Clogged filters reduce airflow, and dirt can get round the edges. The filter section is cleaned so new or cleaned filters sit properly.
Internal casing and panels
Damaged internal linings or loose panels can shed material into the air. We note any we find in the report.
What affects the quote in Bletchingdon
Your quote is based on your site. We consider:
- Parking and loading at the site
- One-off work versus a regular cycle
- Site rules, permits and inductions
- Working hours and out-of-hours timing
Working hours, access and the scale of the site can all change the price. Each of those is built into the quote and give you a fixed price before any work starts.
What we need to know
When you contact us, these details help:
- The site address and the type of premises
- Any previous report or certificate
- How we’d reach plant on a roof or in a plant room
- Your opening hours and when the area is out of use
Need a price for AHU cleaning? Please give us a ring on 0345 646 2711 or send us an email and tell us about the site. We will explain what we’d do and send a fixed quote before you commit to anything.
Aftercare tips
Simple habits between visits make a real difference. Our advice:
- Don’t ignore odours coming through the grilles
- Keep the certificate and photo report with the plant records
- Clear leaves and litter away from the intake
- Note any water around the unit or leaks below it
Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Keep the unit’s doors and panels in working order. If a section is hard to get into, it tends not to get checked.
What AHU cleaning can’t fix
AHU cleaning cannot fix everything, and we’d rather say so up front. It doesn’t solve:
- Mechanical faults with motors, belts or bearings
- A system that is undersized for the building
- Damaged coils beyond cleaning
If in doubt, phone us on 0345 646 2711 or email us and we will say what we think.
Parts of the system we cover
- Internal panels
- Supply and extract fans
- Filter sections
- Drain trays
- Heating and cooling coils
- Dampers and louvres