Oxfordshire · Air handling unit cleaning
Air handling unit cleaning in Lower Assendon, Oxfordshire
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for Lower Assendon, with a survey first and a report with pictures at the end. Ask us for a fixed quote.
- Filters that are clogged or overdue
- Dust-coated heating and cooling coils
- Dust built up on fan impellers
Do you need AHU cleaning in Lower Assendon?
Mechanical servicing keeps a unit running, but it does not always include cleaning the inside. So a unit can be well maintained and still dirty.
The symptoms we’re asked about most are:
- Dirty fans and fan housings
- Units that have only ever had filter changes
- Dirty coils holding back the airflow
- Plant that needs cleaning after a refit
School buildings such as Rupert House School are typically done in the holidays, so classrooms aren’t disturbed.
Comparing quotes
- Whether VAT is included
- Whether a written report and pictures are included
- What happens if part of the system can’t be accessed
- Whether the quote is based on a survey or pictures
AHU cleaning in Lower Assendon, done properly
If the units serving a building in Lower Assendon have only had filter changes for years, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full clean deals with all of it. The work covers dampers and louvres, heating and cooling coils and drain trays, and people most often call us about dirty fans and fan housings and blocked condensate drains and slimy trays.
For a building in or near Lower Assendon, access is agreed in advance and the visit is planned around the journey.
The sign-off is always in writing: 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. It shows what was done and what, if anything, couldn’t be reached.
- Place
- Lower Assendon (RG9)
- Wider area
- Oxfordshire
- Reporting
- Written report with pictures
- Quote
- A fixed quote up front
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
What affects the quote in Lower Assendon
We quote each job individually. This is what makes a difference:
- When the work can happen, such as evenings, overnight or weekends
- Parking and loading at the site
- One-off work versus a regular cycle
- The size of the system
Several systems or sites on one quote often makes better use of the time. Tell us about everything you’d like looked at, and you’ll get one fixed quote.
What to send for a quote
To speed up the quote, please include:
- Close-ups of filters, grilles, hatches or access panels
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Photos showing the whole system and its surroundings
- When the site is open and when it’s quiet
Want a quote for AHU cleaning? Please ring 0345 646 2711 or email us with a few details about the site. We’ll talk you through the work and send you a fixed quote before anything is booked.
Different parts, different methods
Heating and cooling coils
Cooling coils stay damp in use, so dirt on them can turn sticky. The coil and its drain tray are cleaned as one job.
Filters
Filter condition tells you a lot about the rest of the unit. They’re photographed before and after for your records.
Why act early in Lower Assendon
Facilities teams are often asked for evidence that the ventilation is looked after. Our certificate and photo report give you clear evidence, for audits, tenants or your own peace of mind. A planned visit to Lower Assendon is easier to arrange than an emergency callout.
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. You’ll have a fixed price before we start.
What you get with us
- Evenings, overnight and weekends, plus 24/7 emergency callout
- In business since 2009
- Every job surveyed first
- Photo reports with every job
Take a look at our cost guide and how to check a contractor.
Towns and villages near Lower Assendon
What else we do in Lower Assendon
What happens on the day
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. The visit takes one overnight shift for many single units, with bigger plant phased. For a village or hamlet like Lower Assendon, tell us about narrow lanes, gates and parking when you book.
- We survey the unit from photos or on site and agree what’s included.
- We arrange the shutdown with your staff and sheet the area.
- Filters, coils, fan section and casing are cleaned in turn.
- We clean out the drain tray and make sure it drains.
- A TR19® certificate and photo report follow the clean.
Getting ready for the visit
- Agree a time when the area can be out of use
- Mention any sign-in, permit or induction we need
- Clear loose items from the work area
How to get a quote
Quotes are quick. Send a few details and pictures, and we usually reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Related advice
Multi-site and managed buildings
Whether it’s one building or many, you get the same standard: a survey first, a fixed quote, the work timed around the site and a report with photos.
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side, and the report can go to both.
When something else is needed
A few issues sit outside what this work can do:
- Mechanical faults with motors, belts or bearings
- Damaged coils beyond cleaning
- Ventilation that was badly designed in the first place
If in doubt, call us on 0345 646 2711 or drop us a line and we’ll say what we think before booking.
Parts of the system we cover
- Heating and cooling coils
- Dampers and louvres
- Internal panels
- Drain trays
- Filter sections
- Supply and extract fans
AHU cleaning around Lower Assendon
Going by the FSA’s register, there are about 4 schools, colleges and universities serving food in Lower Assendon and the streets around it, up to about 1.5 miles out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. We cover Lower Assendon, about 36 miles from central London, as part of our work across London and the South East. Visits are booked around your hours, evenings and weekends included.
In Lower Assendon, we look inside the system before deciding what needs cleaning.
Lower Assendon is about 6 miles north of Caversham, in Oxfordshire. Sites in Lower Assendon get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with pictures. Lower Assendon is one of 443 places in Oxfordshire we cover for AHU cleaning. For sites nearby, see our Reading page (8 miles or so).
All of RG9 is covered for AHU cleaning, from the main roads to the quietest streets. You’ll find streets such as Old Bix Road and Fair Mile, and we cover them all for AHU cleaning. Other places close to Lower Assendon include Middle Assendon (1 mile north-west), Bix (1 mile north-west), Fawley Bottom (1 mile north), Fawley (1 mile north-east) and Henley-on-Thames (2 miles south-east). Larger places within reach include Didcot (14 miles west), Thame (13 miles north), Benson (9 miles north-west), Chinnor (10 miles north), Tilehurst (8 miles south-west) and Wallingford (9 miles west).
Landmarks near Lower Assendon
In Lower Assendon, that means kitchens and buildings near Golden Ball Public House, Fawley Court and Temple Island and Gillotts School, among other places. The closest station to Lower Assendon is Henley-On-Thames station, about 1.9 miles south-east of the centre. Well-known places in the area include Frazer Nash Archives (2.2 miles south-east). Green spaces nearby include Warburg Nature Reserve.
Questions from Lower Assendon
Do you work in villages like Lower Assendon?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
Can ventilation in schools around Lower Assendon be cleaned out of term?
Yes. Half-terms and the summer break are the natural time for school work. Food Standards Agency records list about 4 schools, colleges and universities with registered kitchens within about a mile and a half of Lower Assendon. Just phone us on 0345 646 2711 or send us an email with your term dates and we will plan around them.
Do you do ventilation duct cleaning too?
Yes. Ductwork is cleaned through access panels, with anything inaccessible recorded, and new panels can be fitted.
Can you set up regular visits?
Yes. Tell us what you have and how it’s used, and we’ll suggest a schedule and quote for it.
How much notice should we give?
Earlier is better, especially for out-of-hours work. We normally quote within one working day, and emergencies are covered by our 24/7 line.
Are you fully insured?
Yes. We carry full insurance and have been trading since 2009.
Where does the waste go?
We contain it and take it with us. Grease, debris and waste water are collected as the work goes on rather than letting it spread.
When should our AHU next be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. Each report suggests when the unit should next be looked at.