Hampshire · Air handling unit cleaning
Air handling unit cleaning in Chawton, Hampshire
For AHU cleaning in Chawton, one call is all it takes: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Intake sections clogged with outdoor debris
- Dust-coated heating and cooling coils
- Dirty fans and fan housings
About our AHU cleaning in Chawton
A cooling coil drips condensate into a tray that should drain away. If the outlet blocks, standing water and slime build up, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. We’re often asked to deal with plant that has been serviced but not cleaned and stale or musty smells from the ventilation, across dampers and louvres, internal panels and heating and cooling coils.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, which makes them easy to overlook.
Nothing is signed off by word of mouth: a written report, dated and illustrated with photos, 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
- Chawton (GU34)
- Region
- Hampshire
- Records
- Report and pictures after the visit
- Quotes
- A fixed price before we start
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
What your team can do, and what needs us
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
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.
Why deal with it now?
Standing water in a drain tray does not clear itself. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Clearing it now is a much smaller job. Equipment tucked in a roof space or outbuilding near Chawton rarely gets looked at unless someone books it.
What you pay depends on how big the system is, the condition it’s in and how easy it is to reach. We give you a fixed price before work begins, so you know where you stand.
Why Chawton businesses choose us
- CHAS, SafeContractor and ISO 9001
- Trading since 2009
- A fixed price before any work starts
- One number for every site across the South East and London
Take a look at our cost guide and our accreditations.
What we’re called out for in Chawton
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 the finer material travels on.
Most sites get in touch when they notice one of these:
- Stale or musty smells from the ventilation
- Leaves and litter drawn into the unit
- Coils clogged with dust and debris
- Air handling units due a clean after building work
Hospitals such as Alton Community Hospital (about within half a mile north) show how much a building can rely on clean ventilation, and smaller healthcare sites near Chawton are no different.
Questions to ask before booking
- Whether the figure could change on the day
- When they can work, and whether that’s outside your opening hours
- Exactly which parts of the system are covered
- If they look at the system before pricing
Chawton questions
Do you work in villages like Chawton?
Yes. Chawton is within the area we cover across London and the South East. A survey first, from pictures or a visit, means we arrive with the right kit.
Do you cover Chawton for AHU cleaning?
Yes. Our area runs across London and the South East, Chawton included. A fixed quote typically follows within one working day of the survey details.
Can we book visits on a schedule?
Yes. Scheduled maintenance plans are part of what we do, set at the interval the system needs. The report from each visit recommends the next date.
How far ahead should we book?
Earlier is better, especially for out-of-hours work. We typically quote within one working day, and there’s a 24/7 line for emergencies.
What accreditations do you have?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We have been trading since 2009 and we are fully insured.
Do you need to switch the unit off?
Yes, while the clean is under way. We can work evenings, overnight or at weekends so the building isn’t left without ventilation when it’s busy.
What do you need from me for a quote?
A short description and a few pictures, with the address and opening hours. We’ll ask for anything else we need.
Will you repair the fan or motor?
We clean the unit and flag faults rather than repair them, with pictures where it helps.
The process
Everything the job needs comes with us, including protection sheets, the right tools and access kit. You only need to give us clear access and switch off what needs to be off. On site, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. Photos of the system and how to reach it help us plan a visit to Chawton.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- We take after photos and issue the certificate and report.
Preparing for the visit
- Tell us about site rules, permits or sign-in
- Dig out any earlier paperwork for the system
- Let us know when the site is closed or quiet
Getting a quote
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.
Related advice
When it’s something else
An honest diagnosis matters more to us than a booking, so here’s what AHU cleaning will not do:
- Coils that are corroded or leaking and need replacing
- Problems with the unit’s controls or sensors
- Faulty motors, drives or bearings
If in doubt, call 0345 646 2711 or use the quote form and we’ll say what we think.
Parts of the system we cover
- Filter sections
- Internal panels
- Heating and cooling coils
- Drain trays
- Dampers and louvres
- Supply and extract fans
For landlords and multi-site operators
We regularly work with managing agents. Tell us the site, the work and the access arrangements and we will come back with a fixed quote.
For anyone managing more than one site, we can schedule visits across all of them on one quote. Every building has its own written report, so each one has its own record.
Nearby places to Chawton
Other services in Chawton
What AHU cleaning looks like in Chawton
The FSA’s food hygiene register lists about 4 caring premises (care homes, nurseries and hospitals) and about 3 hotels and B&Bs with registered kitchens or food service within roughly a mile and a half of the centre of Chawton. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. About 46 miles out from central London, Chawton is part of the South East area we work across. The visit is fixed around your opening hours, not ours. Alton Community Hospital is the nearest hospital, about within half a mile north of Chawton. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
For schools like Chawton Church of England Primary School, the holidays are the usual time to inspect and clean ventilation.
Chawton is about 1 mile south-west of Alton, in Hampshire. If you need AHU cleaning in Chawton, please give us a ring on 0345 646 2711 or drop us a line for a fixed quote. Our area covers London and the South East, including Chawton. Chawton is one of 683 places in Hampshire we cover for commercial clients. Our Guildford page covers sites nearby (20 miles or so).
We cover every part of the GU34 postcode area for AHU cleaning and the roads nearby. That includes premises on Winchester Road and Wolf's Lane and the roads around them. Neighbouring places we cover for AHU cleaning include Alton (1 mile north-east), Upper Farringdon (2 miles south), Lower Farringdon (2 miles south), Farringdon (2 miles south) and Hartley Mauditt (2 miles south-east). Larger places within reach include Basingstoke (10 miles north-west), Winchester (15 miles west), Farnborough (15 miles north-east), Fleet (12 miles north-east), Aldershot (13 miles north-east) and Petersfield (9 miles south).
Local landmarks in Chawton
We work in commercial kitchens and buildings around The Greyfriar pub and Amery Hill School and the streets around them. Chawton’s nearest station is Alton station, about 1.6 miles north-east. Other landmarks nearby include Allen Gallery (1.3 miles north-east) and Alton Community Hospital (less than half a mile north). Open spaces near Chawton include King's Hill.
How the job changes from site to site
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. A clean gets air moving through the coil properly again.
Drain trays
A tray that does not drain becomes a pool of stagnant water in the airstream. We clean it and report anything about the tray or drain that needs fixing.