Slough · Air handling unit cleaning
Middlegreen AHU cleaning
AHU cleaning across Middlegreen and nearby, timed so the site keeps working and signed off in writing with pictures.
- Air handling units due a clean after building work
- Filters that are clogged or overdue
- Coils clogged with dust and debris
AHU cleaning in Middlegreen, done properly
Coils are where a lot of the dirt ends up. Dirt on the fins holds back air and makes the unit work harder to do the same job. We clean coils with methods suited to their condition, taking care not to damage the fins. Typical jobs include air handling units with blocked filters and intake sections clogged with outdoor debris, on supply and extract fans, drain trays and internal panels.
For a building in or near Middlegreen, access is agreed in advance and the visit is planned around the journey.
It’s worth checking any contractor’s accreditations. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Where
- Middlegreen (SL3)
- Wider area
- Slough
- Paperwork
- Written report with pictures
- Quotes
- A fixed price before any work starts
- When we work
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Questions from Middlegreen
Can the work in Middlegreen be done at night or at weekends?
Yes. We work evenings, overnight and at weekends. Your customers, staff or residents in Middlegreen needn’t be disturbed. Tell us your opening hours when you ask for a quote.
Do you do school ventilation cleaning in Middlegreen in the summer holidays?
Yes, out-of-term visits are normal for schools. The FSA’s register shows about 13 schools and colleges with food registrations within roughly a mile and a half of Middlegreen. Send us your term dates when you give us a ring on 0345 646 2711 or use the quote form, and we will fit the work in.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
What do you do to protect the area?
By covering it before any work starts. The work is kept contained and leave the area clean.
Is there a survey before the work?
Yes. Every job is surveyed first, from your photos and details, or with a visit where needed. A fixed quote follows.
Will the ventilation be off while you clean?
Yes, for the time we are working on it. We can work evenings, overnight or at weekends so the building is not left without ventilation when it’s busy.
Do you clean the ductwork as well?
Yes. We clean supply and extract ductwork to TR19® Air as well. It’s often worth doing both at once, and we can survey both on the same visit.
Can one contract cover all our sites?
Yes. Our area covers London and the South East, so we can schedule a run of sites on one programme. Each site gets its own report and photos.
Honest limits
It’s worth knowing the limits before booking:
- Leaking heating or cooling coils
- A system that is undersized for the building
- Dirty ducts beyond the unit itself
Not sure which it is? You can ring 0345 646 2711 or email us and we will tell you honestly.
What the work covers
- Drain trays
- Heating and cooling coils
- Filter sections
- Dampers and louvres
- Internal panels
- Supply and extract fans
Part by part
Filters
What’s on the filters is a good clue to what’s further in. They’re photographed before and after for your records.
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.
Also near Middlegreen
Also in Middlegreen
For landlords and multi-site operators
We regularly work with managing agents. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.
We also work for facilities teams across offices, schools and healthcare across Slough. Work can be phased by floor, building or site around the people who use them.
In-house cleaning or a specialist?
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
Middlegreen buildings and their air
Food Standards Agency records list about 13 schools, colleges and universities, about 14 caring premises (care homes, nurseries and hospitals) and about 4 hotels, B&Bs and guest houses registered as food businesses in Middlegreen and the streets around it, up to about 1.5 miles out. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. About 1.6 miles west of Middlegreen is Upton Hospital, the nearest hospital. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. About 20 miles out from central London, Middlegreen 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.
School buildings such as The Langley Academy Primary are usually done in the holidays, so classrooms are not disturbed. If you run a surgery, dental practice or care home near Middlegreen, clean ventilation matters as much to you as to a hospital like Upton Hospital (about 1.6 miles west).
Middlegreen is about 2 miles east of Slough, in Slough. Sites in Middlegreen 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. 31 places in Slough are on our list, from busy centres to quieter spots. For sites nearby, see our Guildford page (18 miles or so).
Every address in SL3 is within our area for AHU cleaning, from busy streets to back roads. Streets in the area include Laurel Avenue, St Mary's Road and Maryside, all of which we cover for AHU cleaning. We also cover the places around Middlegreen: Langley (1 mile south-east), George Green (1 mile north), Shreding Green (1 mile north-east), Upton (2 miles west) and Wexham Court (2 miles north-west). Further out, we also cover Cippenham (4 miles west), Britwell (3 miles north-west), Burnham (5 miles west), Stoke Poges (3 miles north-west), Huntercombe (4 miles west) and Farnham Common (4 miles north-west).
Landmarks near Middlegreen
Typical jobs here are in premises near Upton Court Grammar School, The Chestnuts pub and Langley Academy, among other places. For rail, the closest station is Langley station, about 0.7 miles east. Nearby you will also find Windsor Castle (2.8 miles south-west) and Museum of Eton Life (2.6 miles south-west). Open spaces near Middlegreen include Stoke Common.
Looking after it afterwards
So the system stays in good health:
- Make sure the unit’s access doors open easily
- Plan the next inspection before the last report gets filed away
- Stick to the filter change plan
- Watch for drips or damp patches near the plant
The ducts served by the unit may need attention too. A clean unit feeding dirty ducts only solves half the problem, and we can survey both.
Keep the area around the intake clear. What’s near the intake ends up in the unit.
What we are called out for in Middlegreen
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. Most of it lands at the intake and the first stage of filters, and some travels further into the unit.
Signs it’s time to call us include:
- Dirty coils holding back the airflow
- Plant that has been serviced but not cleaned
- Air handling units with blocked filters
- Leaves and litter drawn into the unit
For workplaces around Langley station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Questions to ask before you book
- What’s included in the scope, part by part
- What hours they’ll be on site
- Whether the quote shows VAT
- Proof of accreditation you can verify
What we do, step by step
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool before any work starts, and the area around the work is covered and protected. On site, it takes a single shift for a typical unit, longer for large or heavily soiled ones. We agree a date with you, plan the drive to Middlegreen and turn up when the site is quiet.
- The survey covers the unit, its access and how it can be shut down.
- 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.
- The unit is closed up and handed back, with a report to follow.
How to prepare
- Agree a time when the area can be out of use
- Find the previous report, if there is one
- 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, and then send you a fixed quote. To start, give us a ring on 0345 646 2711 or send us an email.