Hampshire · Air handling unit cleaning
AHU Cleaning in Viables
One call covers air handling unit cleaning in Viables: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Units that have only ever had filter changes
- Stale or musty smells from the ventilation
- Debris and leaves in the fresh air intake
Questions from Viables
Is Viables within the area you cover?
Yes, we work in villages as well as towns, and Viables is covered. The journey is planned ahead, so a few details about the route help.
Can a school’s ventilation in Viables be done out of term time?
Yes, holiday work suits schools best. With about 20 schools and colleges on the FSA’s register within roughly a mile and a half of Viables, it pays to plan holiday dates ahead. Send us your term dates when you call us on 0345 646 2711, or email photos, and we will fit the work in.
Can you come out in an emergency?
Yes. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we’ll talk you through the next steps.
How long does an AHU clean take?
Cleaning takes one overnight shift for many single units, with bigger plant phased. Bigger units can be phased, and you can call 0345 646 2711 or drop us a line to plan it.
What information do you need?
A short description and a few pictures, with the address and opening hours. We will ask for anything else we need.
Do you have insurance?
Yes. We carry full insurance and have been trading since 2009.
Do you work with multi-site operators?
Yes. We work across South East England and London, so sites at different addresses can be planned together on one programme. Every site has its own report.
What does AHU cleaning cost?
There’s no set price, as it depends on the job: how big it is, what state it’s in, how we reach it and the working hours. You get a fixed price before work begins.
How we handle AHU cleaning in Viables
If the units serving a building in Viables 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. If you have odours coming through the supply air and leaves and litter drawn into the unit, we can help, from dampers and louvres, heating and cooling coils and filter sections onwards.
For a building near Viables, the visit is planned around how it’s used, and the journey is planned ahead. The method does not change: inspect first, clean, then record what was done.
Nothing is signed off by word of mouth: a dated report with pictures of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.
- Where
- Viables (RG21, RG22, RG25)
- Wider area
- Hampshire
- Paperwork
- Photo report after each visit
- Price
- A fixed price before we start
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026

Also near Viables
Also in Viables
What the work involves, part by part
Drain trays
Standing water in a tray sits right where the air passes. We clean it and note if the slope or the drain needs attention.
Filters
Clogged filters reduce airflow, and dirt can get round the edges. The filter section is cleaned so new or cleaned filters sit properly.
When something else is needed
Before you book, it helps to know what’s not included:
- Coils that are corroded or leaking and need replacing
- Breakdowns that need a mechanical engineer
- Dirty ducts beyond the unit itself
If you are not sure, just give us a ring on 0345 646 2711 or send us an email and we will give you a straight answer.
Parts of the system we cover
- Heating and cooling coils
- Drain trays
- Internal panels
- Supply and extract fans
- Dampers and louvres
- Filter sections
Why act early in Viables
A slimy drain tray only gets worse. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Dealing with it early keeps the clean straightforward. Even a site near Viables that’s only busy part of the week needs its system checked on a schedule.
The price reflects the work, not guesswork. That’s why every job is surveyed first, and why the quote is fixed before we start.
Why book with us
- A written report with photos after every visit
- We are fully insured
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Fixed quotes from a survey or photos
Take a look at how cleaning jobs are priced or our accreditations and certificates.
Landlords, agents and facilities managers
Keeping records across a portfolio is half the battle. Each visit ends with a dated report and photos, ready to show insurers, fire officers or EHOs.
Facilities teams in offices, schools and healthcare sites book us too in Viables and across Hampshire. Work can be phased by floor, building or site around the people who use them.
Aftercare tips
No system stays clean for ever, but care slows the build-up. A few tips:
- Note any water around the unit or leaks below it
- File each AHU report in the maintenance log
- Look at the condensate drain whenever the unit is serviced
- Report musty smells from the vents straight away
The report shows each section of the unit before and after, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air instead of leaving it to guesswork.
What we do, step by step
We are used to working while the site is closed. A lot of visits happen overnight or at weekends, so the site can open as normal afterwards. The visit itself takes one overnight shift for many single units, with bigger plant phased. Getting to the system matters more than parking in a place like Viables, so let us know how to reach it.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before pictures of each section of the unit.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- After photos are taken and the certificate issued.
How to prepare
- Agree a time when the area can be out of use
- Dig out any earlier paperwork for the system
- Name a contact who can let us in at the agreed time
How to get a quote
The quickest way to a quote is to send photos: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Read more
Signs you need AHU cleaning in Viables
Most units live out of sight on roofs, in plant rooms or in ceiling voids, so they’re easy to forget about. It’s easy for a long time to go by without anyone opening the panels.
Any of these means the system needs a check-up:
- Air handling units due a clean after building work
- Dust-coated heating and cooling coils
- Dirty filters cutting the airflow
- Units that have only ever had filter changes
Healthcare ventilation, from large hospitals like Basingstoke and North Hampshire Hospital (about 2.3 miles north-west) to small clinics, depends on clean filters, coils and ducts.
Before booking anyone
- Proof of insurance
- What happens if part of the system can’t be accessed
- When the next visit should be, and why
- What hours they’ll be on site
Ventilation in Viables buildings
Food Standards Agency records list about 20 schools, colleges and universities, about 15 caring premises (care homes, nurseries and hospitals) and about 5 hotels, B&Bs and guest houses registered as food businesses within about 1.5 miles of central Viables. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Viables is about 46 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 Viables, the closest hospital is Basingstoke and North Hampshire Hospital, roughly 2.3 miles north-west. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Classrooms and halls at schools such as St John's Church of England Voluntary Aided Primary School are easiest to work in when pupils are away.
Viables is about 1 mile south-east of Basingstoke, in Hampshire. We provide AHU cleaning for commercial premises of every kind in Viables and the rest of Hampshire. Our area takes in 683 places across Hampshire, large and small. Reading is in our area too, around 15 miles away.
All of RG21, RG22 and RG25 is within our area for AHU cleaning, from the main roads to the quietest streets. AHU cleaning is available to premises on Grove Road, Porter Road and Morley Road and nearby roads. If your site is just outside Viables, we cover Cliddesden (1 mile south), Eastrop (1 mile north), Oakridge (1 mile north), Lychpit (2 miles north-east) and Old Basing (2 miles north-east). Larger places within reach include Farnborough (14 miles east), Fleet (11 miles east), Aldershot (14 miles east), Alton (8 miles south-east), Yateley (13 miles north-east) and Tadley (8 miles north).
Landmarks near Viables
In Viables, that means kitchens and buildings near The Costello School, Queen Mary's College and Hackwood Park. The closest station to Viables is Basingstoke station, roughly 1.3 miles north. Other landmarks nearby include Willis Museum (0.9 miles north) and Festival Place (1.1 miles north). Green spaces nearby include The Mill Field and Farleigh Hill.