Windsor and Maidenhead · Air handling unit cleaning
Air handling unit cleaning in Old Windsor, Windsor and Maidenhead
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for Old Windsor, with a survey first and a report with pictures at the end. Ask us for a fixed quote.
- Plant that has been serviced but not cleaned
- Dirty coils holding back the airflow
- Air handling units due a clean after building work
AHU cleaning in Old Windsor, done properly
Where a building in Old Windsor has had little more than filter changes, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full clean deals with all of it. If you are dealing with dirty coils holding back the airflow and leaves and litter drawn into the unit, we can help.
Smaller buildings around Old Windsor often keep their ventilation units in a roof void or plant cupboard, out of sight and easy to overlook. Filters, coils and drain trays need attention whatever the size of the unit.
Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Place
- Old Windsor (SL4)
- Region
- Windsor and Maidenhead
- Reporting
- Photo report after every visit
- Quote
- Fixed quote, typically within a working day
- When we work
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Checked
- 30 October 2026
AHU cleaning in Old Windsor: local notes
Food Standards Agency records list about 10 schools, colleges and universities and about 5 hospitals, care homes and childcare premises registered as food businesses in and around Old Windsor, up to about a mile and a half out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. King Edward VII Hospital is the nearest hospital, about 1.8 miles north-west of Old Windsor. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. Old Windsor, about 21 miles from central London, is within our usual area. The visit is fixed around your opening hours, not ours.
If you manage a school such as King's Court First School, ventilation cleaning is best booked for the holidays. King Edward VII Hospital, about 1.8 miles north-west, is the nearest hospital to Old Windsor, and healthcare sites of every size need their supply air kept clean.
Old Windsor is about 2 miles north-west of Egham, in Windsor and Maidenhead. Across the SL4 area, we can carry out AHU cleaning at your premises. We cover 57 places across Windsor and Maidenhead, from busy centres to quieter spots. You can also see our page for Guildford, roughly 15 miles from Old Windsor.
AHU cleaning in SL4 is surveyed, quoted and booked the same way as anywhere else. If you need AHU cleaning at premises on Church Road, Parker Gardens and Gregory Drive or a nearby road, we can help. You’ll find Old Windsor on the B3021, which makes it straightforward for our technicians to reach for out-of-hours visits. If your site is just outside Old Windsor, we cover Wraysbury (1 mile east), Sunnymeads (1 mile north-east), Bishopsgate (1 mile south), Datchet (2 miles north) and Englefield Green (2 miles south). We also work in nearby towns such as Maidenhead (8 miles north-west), Windsor (3 miles north-west), Boyn Hill (8 miles north-west), North Ascot (6 miles south-west), Cookham (9 miles north-west) and Furze Platt (9 miles north-west).
Around Old Windsor
Locally, jobs take us to businesses close to St John's Beaumont School, Windsor Great Park and The Fox And Castle Public House. The closest station to Old Windsor is Sunnymeads station, about 1.3 miles north-east of the centre. Well-known places in the area include Windsor Castle (2.1 miles north-west) and Berkshire Yeomanry Museum (1.6 miles north-west). The countryside around Old Windsor includes St Ann's Hill and Virginia Water Lake.
Part by part
Drain trays
Drain trays can rust and leak over time. Their condition goes into the report with photos so repairs can be planned.
Filters
Clogged filters reduce airflow, and dirt can get round the edges. We clean the frames and rails so the filters sit tight.
When something else is needed
Before you book, it helps to know what’s not included:
- Building management system faults
- A system that’s undersized for the building
- Mechanical faults with motors, belts or bearings
If you’re not sure, just give us a ring on 0345 646 2711 or use the quote form and we’ll give you a straight answer.
What the work covers
- Heating and cooling coils
- Drain trays
- Internal panels
- Dampers and louvres
- Filter sections
- Supply and extract fans
Towns and villages near Old Windsor
Also in Old Windsor
Why act early in Old Windsor
Stuffy rooms and stale smells in a building in Old Windsor can sometimes be traced back to the AHU. A clean tackles the source instead of masking it. It’s better to plan the work at a site near Old Windsor than wait for a failure.
Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all play a part.
Why book with us
- CHAS and SafeContractor accredited, with ISO 9001
- A written report with pictures after each visit
- Work around your opening hours, with 24/7 emergency cover
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Common questions in Old Windsor
Can you get to a site in Old Windsor?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
Can a school’s ventilation in Old Windsor be done out of term time?
Yes. Half-terms and the summer break are the natural time for school work. With about 10 schools and colleges on the FSA’s register within roughly a mile and a half of Old Windsor, it pays to plan holiday dates ahead. You can call us on 0345 646 2711 or send us an email with the dates the site is empty.
What does AHU cleaning cost?
We don’t publish prices, because the cost depends on the job: how big it is, what state it’s in, how we reach it and the working hours. We fix the price before any work starts.
Do you survey before quoting?
Yes, every time. We diagnose before we treat: the survey tells us what the system needs and how to reach it, and the quote is based on that.
What’s TR19?
BESA’s ventilation hygiene specification in two main parts: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It isn’t law, but it’s the benchmark.
Does the AHU have to be shut down for cleaning?
Yes, while the clean is under way. Out-of-hours work is available to keep disruption down.
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?
We hold CHAS, SafeContractor and ISO 9001, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
What affects the quote in Old Windsor
The diagnosis comes before the price. The main factors are:
- Travel, parking and unloading
- The size of the system
- Site requirements such as sign-in and permits
- What state the system is in
One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. The price is fixed before we start.
What to send for a quote
To speed up the quote, send us:
- Wide pictures of the system and the area around it
- The roof, plant room or outside wall the system runs to
- The times we could work without disrupting the site
- Any access panels or hatches you can see
We don’t publish a price list, because every site is different. Instead, we look at your site first, from photos or a survey, and then give you a fixed quote. To start, phone us on 0345 646 2711 or email us.
Keeping the system healthy
Results last longer with the right care. We suggest:
- Don’t ignore odours coming through the grilles
- Keep filter changes on time and recorded
- Keep inspection doors on the unit in good order
- Store the TR19 paperwork where auditors can find it
Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.
Check drain trays and condensate drains during routine maintenance. Catching a slow drain early stops standing water building up.
How it works
Your staff don’t need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. In a place like Old Windsor, we fit the visit around your hours.
- We start with a survey of the unit and a fixed quote for the work.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Standing water and slime come out of the tray and the drain is checked.
- You get a TR19® certificate and a photo report.
Before we arrive
- Clear the space around the work
- Name a contact who can let us in at the agreed time
- Let us know about permits to work or site inductions
How to get a quote
Quoting starts with a diagnosis, from your photos and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work, before work begins.
Advice
For landlords and multi-site operators
We regularly work with managing agents. Send the address, what’s needed and how access works, and we’ll send a fixed quote.
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.