Surrey · Air handling unit cleaning
AHU Cleaning in Wanborough
Professional AHU cleaning in and around Wanborough, timed so the site keeps working and signed off in writing with pictures.
- Dirty filters cutting the airflow
- Dirty fans and fan housings
- Coils clogged with dust and debris
AHU cleaning in Wanborough: local notes
Wanborough’s nearest hospital, Guildford Hospital, is about 2.4 miles east. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital. We cover Wanborough, about 31 miles from central London, as part of our work across London and the South East. Evening, overnight and weekend visits are all possible.
If you run a surgery, dental practice or care home near Wanborough, clean ventilation matters as much to you as to a hospital like Guildford Hospital (about 2.4 miles east). Classrooms and halls at schools such as Puttenham CofE Infant School are easiest to work in when pupils are away.
Wanborough is about 4 miles west of Guildford, in Surrey. Whether your site is in the middle of Wanborough or further out, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. We cover 395 places across Surrey, from busy centres to quieter spots.
Every address in GU3 is within our area for AHU cleaning, from the main roads to the quietest streets. Neighbouring places we cover for AHU cleaning include Christmas Pie (1 mile north-west), Flexford (1 mile north-west), Puttenham (1 mile south-west), Normandy (2 miles north) and Willey Green (2 miles north). We also work in nearby towns such as Guildford (4 miles east), Woking (7 miles north-east), Camberley (8 miles north), Farnham (6 miles west), Egham (15 miles north) and Walton-on-Thames (15 miles north-east).
Landmarks near Wanborough
In Wanborough, that means kitchens and buildings near Pucks Oak Barn and McAlmont Reserves and The Good Intent pub, among other places. Wanborough’s nearest station is Wanborough station, roughly 0.9 miles north of the centre. A little further out are Guildford Castle (4 miles east) and Guildford Hospital (2.4 miles east). For a walk, there’s Ash Ranges and Lower Lake.
AHU cleaning in Wanborough
Every supply and extract system relies on the air handling unit at its centre: it draws air in, filters it, heats or cools it and pushes it round the ductwork. Whatever builds up inside it travels with that air, which is why we clean the unit itself, not just the ducts. We are often asked to deal with coils clogged with dust and debris and stale or musty smells from the ventilation, on filter sections, internal panels and heating and cooling coils.
In a village or hamlet like Wanborough, few buildings have mechanical ventilation, but those that do need it inspected and cleaned like any other.
Accreditations are easy to claim and worth checking. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Where
- Wanborough (GU3)
- Region
- Surrey
- Records
- Written report with photos
- Quotes
- A fixed price before any work starts
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Your questions about AHU cleaning in Wanborough
Can the work in Wanborough be done at night or at weekends?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. Just ring 0345 646 2711 or use the quote form with your opening times and we’ll plan around them.
Do you work in villages like Wanborough?
Yes, smaller places are covered as well as towns. A survey first, from photos or a visit, means we arrive with the right kit.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
What happens to the waste?
Waste is contained during the work and removed when we leave, from grease and debris to used cleaning water. None of it is left on site.
What should I send you?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and the last report help too. After that, simply call 0345 646 2711 or drop us a line.
What’s included in an AHU clean?
All the internal parts the air touches, from intake to discharge, including coils, fan and drain trays. The photo report shows each section before and after.
How much notice should we give?
For planned work, earlier is better, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
What happens if you can’t reach some of it?
They’re listed in the report, never skipped quietly. You’ll know exactly which parts weren’t reached and why, along with a quote to put access in.
Part by part
Filters
Filter condition tells you a lot about the rest of the unit. We photograph them for the report.
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. The intake section gets particular attention.
Signs you need AHU cleaning in Wanborough
Filters catch most of the dust, but not all of it. What gets through settles on coils, fans and the inside of the casing, building up layer by layer.
Keep an eye out for these warning signs:
- Coils clogged with dust and debris
- Dust built up on fan impellers
- Air handling units with blocked filters
- Plant that has been serviced but not cleaned
For workplaces around Wanborough station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Questions to ask before you book
- Whether VAT is included
- Whether the whole system is included, or only the parts that are easy to reach
- Proof of insurance
- What happens if part of the system cannot be accessed
What affects the quote in Wanborough
The diagnosis comes before the price. The main factors are:
- What state the system is in
- One-off work versus a regular cycle
- Parking and loading at the site
- How big the system is
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. The price is fixed before work begins.
What we need to know
We can often survey from pictures. The most useful are:
- Problems your staff have spotted
- A few general shots of the system
- The roof, plant room or outside wall the system runs to
- Your opening hours and when the area is out of use
For AHU cleaning in Wanborough, call us on 0345 646 2711 or email us. Let us know the site type and the opening hours, and send photos or your last report if you can. A fixed quote normally follows within one working day.
For landlords and multi-site operators
Running several sites is easier with one contractor. We work across London and the South East, so a run of sites can go into one programme and kept to a regular schedule.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.
In-house cleaning or a specialist?
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. Cleaning inside ducts and units is specialist work.
The process
Protection comes first: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. The work on site takes anything from half a day for one small unit to several shifts for a plant room full of them, and the area is cleaned down before we leave. Pictures of the system and its access let us plan the work in Wanborough before we set off.
- 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.
- A TR19® certificate and photo report follow the clean.
Preparing for the visit
- Dig out any earlier paperwork for the system
- Clear the space around the work
- Allow time for equipment near the work to be turned off and cool down
Get a fixed quote
There’s no standard price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To start, phone us on 0345 646 2711, or email photos.
Advice
When it’s something else
To be straight with you, some problems need a different fix:
- Building management system faults
- A system that’s undersized for the building
- Damaged coils beyond cleaning
Not sure which it is? You can ring 0345 646 2711 or send us an email and we will tell you honestly.
What the work covers
- Drain trays
- Dampers and louvres
- Supply and extract fans
- Filter sections
- Internal panels
- Heating and cooling coils