Slough · Air handling unit cleaning
AHU Cleaning in Farnham Royal
AHU cleaning for Farnham Royal and the surrounding area: diagnosis first, then a fixed quote, the work and a report with photos. Ask us for a fixed quote.
- Dirty coils holding back the airflow
- Dirty fans and fan housings
- Air handling units never cleaned inside
AHU cleaning in Farnham Royal, done properly
We clean air handling units for buildings in Farnham Royal and across Slough, working to TR19® Air, in offices, schools, hospitals, care homes and retail. The work is timed around when the system can be switched off, including evenings, nights and weekends. We’re often asked to deal with debris and leaves in the fresh air intake and stale or musty smells from the ventilation, across supply and extract fans, dampers and louvres and filter sections.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
Think of the report as the system’s health record: a dated account with pictures of everything we did. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal, ready for your insurer.
- Location
- Farnham Royal (SL2)
- Region
- Slough
- Records
- Written report with pictures
- Quote
- A fixed quote up front
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Updated
- 30 October 2026
AHU cleaning in Farnham Royal: local notes
Food Standards Agency data includes about 13 schools, colleges and universities and about 12 hospitals, care homes and childcare premises across Farnham Royal and its immediate surroundings (about a mile and a half). Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Farnham Royal is about 23 miles from central London, well within the area we cover across London and the South East. The visit is fixed around your opening hours, not ours. For Farnham Royal, the closest hospital is Wexham Park Hospital, roughly 1.8 miles east. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
For schools like St Mary's Farnham Royal CofE Primary School, the holidays are the usual time to inspect and clean ventilation.
Farnham Royal is about 2 miles north of Slough, in Slough. We provide AHU cleaning for commercial premises of every kind in Farnham Royal and the rest of Slough. Across Slough, we cover 31 places, and Farnham Royal is one of them. Our Reading page covers sites nearby, about 17 miles away.
Every address in SL2 is within our area for AHU cleaning, from the main roads to the quietest streets. That includes premises on Church Road, Sospel Court and Montague Close and the roads around them. Other places close to Farnham Royal include Britwell (1 mile south-west), East Burnham (1 mile north-west), Farnham Common (1 mile north), Egypt (1 mile north) and Slough (2 miles south). Further out, we also cover Langley (4 miles south-east), Upton (3 miles south-east), Datchet (4 miles south-east), Ditton (4 miles south-east), Poyle (6 miles south-east) and Colnbrook (6 miles south-east).
Near you in Farnham Royal
Typical jobs here are in premises near The Crown Public House, Cocksherd Wood and Caldicott School, among other places. The nearest railway station is Burnham station, roughly 1.8 miles south-west of the centre. A little further out are Wexham Park Hospital (1.8 miles east) and Windsor Castle (4 miles south). Green spaces nearby include Burnham Beeches and Taplow Lake.
Multi-site and managed buildings
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We can quote either party, and the report can go to both.
Multi-site operators often want one contractor and one number. We cover South East England and London, so a run of sites can go into one programme and kept to a regular schedule.
FAQs for Farnham Royal
Do you work overnight in Farnham Royal?
Yes. We work evenings, overnight and at weekends. The site is handed back ready to open. Tell us your opening hours when you ask for a quote.
Can a school’s ventilation in Farnham Royal be done out of term time?
Yes. The holidays are the usual time for school work. Food Standards Agency records list about 13 schools, colleges and universities with registered kitchens within about a mile and a half of Farnham Royal. Just give us a ring on 0345 646 2711 or drop us a line with your term dates and we will plan around them.
How long does an AHU clean take?
Expect it to take one overnight shift for many single units, with bigger plant phased. The unit’s size and condition make the biggest difference, and the quote will give you a clear idea.
Which kinds of sites do you work on?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
Do you do ventilation duct cleaning too?
Yes. We clean supply and extract ductwork to TR19® Air as well. Cleaning the unit and ducts together often makes sense, and we can quote for both.
Can you come out in an emergency?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, with the emergency line covering every other hour.
Do you work with multi-site operators?
Yes. We work across South East England and London, so we can schedule a run of sites on one programme. Each site gets its own report and pictures.
Will the ventilation be off while you clean?
Yes, for the time we’re working on it. We can work evenings, overnight or at weekends to keep disruption down.
When to call us in Farnham Royal
No filter stops everything. What gets through settles on coils, fans and the inside of the casing, building up layer by layer.
The symptoms we are asked about most include:
- Plant that needs cleaning after a refit
- Fan sections that haven’t been cleaned in years
- Intake sections clogged with outdoor debris
- Stale or musty smells from the ventilation
Wexham Park Hospital, about 1.8 miles east, is the nearest hospital to Farnham Royal, and healthcare sites of every size need their supply air kept clean.
Questions to ask before booking
- What’s included in the scope, part by part
- Whether the quote is based on a survey or photos
- What insurance they carry
- How VAT is shown on the quote
What AHU cleaning cannot fix
AHU cleaning cannot fix everything, and we’ll tell you before work begins. It does not solve:
- Problems with the unit’s controls or sensors
- Damaged coils beyond cleaning
- Breakdowns that need a mechanical engineer
Not sure which it is? You can call 0345 646 2711 or email us and we’ll tell you honestly.
Parts of the system we cover
- Dampers and louvres
- Internal panels
- Filter sections
- Supply and extract fans
- Heating and cooling coils
- Drain trays
How we price AHU cleaning
The diagnosis comes before the price. We look at:
- One-off work versus a regular cycle
- Parking and loading at the site
- The condition of the system
- The times the site is available
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, which can make the next visit longer. If you are not sure what’s needed, call 0345 646 2711 or send us an email and we will give you an honest view and a fixed quote.
What we need to know
When you contact us, it’s useful to have:
- A few general shots of the system
- Any access panels or hatches you can see
- The site address and the type of premises
- Where the plant sits or the system leaves the building, such as a roof or outside wall
If you need AHU cleaning in Farnham Royal, give us a ring on 0345 646 2711, or email photos. Tell us what kind of premises it is and when it’s open, and send pictures or your last report if you can. We normally send a fixed quote within one working day.
How it works
Protection comes first: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. It takes a single shift for a typical unit, longer for large or heavily soiled ones, and the area is cleaned down before we leave. If you can send pictures, we can arrive in Farnham Royal knowing what to expect.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Find the previous report, if there is one
- Tell us where we can park and unload
- Make sure equipment near the work can be switched off and left to cool
Get a fixed quote
Quoting starts with a diagnosis, from your pictures and details or, where that isn’t enough, a survey on site. After that, you get a fixed price for the work so you know the cost before we start.
Read more
What your team can do, and what needs us
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
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.
Looking after it afterwards
How long the results last depends on use and care. Here’s what we suggest:
- Check the drain tray is emptying during routine visits
- Watch for drips or damp patches near the plant
- Report musty smells from the vents right away
- Clear leaves and litter away from the intake
The report suggests a date for the next inspection or clean, taking into account how dirty it was. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Keep the area around the intake clear. What’s near the intake ends up in the unit.