Hampshire · Air handling unit cleaning
Alton AHU cleaning
AHU cleaning across Alton and nearby, timed so the site keeps working and signed off in writing with photos.
- Dirty fans and fan housings
- Dirty filters cutting the airflow
- Leaves and litter drawn into the unit
About our AHU cleaning in Alton
All the building’s air passes through the fan, so dust on its blades and housing ends up in the airstream. Fan, housing and the surrounding panels are cleaned as part of the job, with the unit switched off and made safe first. The work covers internal panels, dampers and louvres and heating and cooling coils, and common reasons people get in touch are intake sections clogged with outdoor debris and air handling units due a clean after building work.
In a town like Alton, ventilation cleaning normally means offices, schools, surgeries, care homes and leisure buildings. Each has supply and extract ductwork that collects dust and debris.
The paperwork matters as much as the work. You get a written report with photos after every visit, listing what was done, anything we couldn’t reach and when the next visit is due. File it in your maintenance log so it’s to hand when an insurer or inspector asks.
- Place
- Alton (GU34)
- Region
- Hampshire
- Paperwork
- Report and photos after the visit
- Price
- Fixed quote, usually within a working day
- Working hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
The process
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. Three things shape a visit in Alton: when you are closed, where we can park and how we get to the system.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- We take after pictures and issue the certificate and report.
How to prepare
- Let us know about parking and loading
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Let us know when the site is closed or quiet
Ask for a quote
Every quote begins with a look at the system, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price so you know the cost before any work starts.
Related advice
Ventilation in Alton buildings
Food Standards Agency records list about 6 caring premises (care homes, nurseries and hospitals) and about 3 hotels, B&Bs and guest houses registered as food businesses within roughly a mile and a half of the centre of Alton. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Alton’s nearest hospital, Alton Community Hospital, is about 0.9 miles south-west. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. We cover Alton, about 45 miles from central London, as part of our work across London and the South East. Visits are booked around your hours, evenings and weekends included.
Classrooms and halls at schools such as Saint Lawrence Church of England Primary School are easiest to work in when pupils are away. If you manage offices or shops near Alton station, their ventilation can be inspected and cleaned out of hours.
Alton is about 10 miles south-east of Basingstoke, in Hampshire. From the centre of Alton to the outskirts, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. 683 places in Hampshire are on our list, large and small. Guildford is in our area too, around 19 miles away.
Every address in GU34 is covered for AHU cleaning, from busy streets to back roads. If you need AHU cleaning at premises on High Street, Station Road and Goswell Square or a nearby road, we can help. Being close to the A339 and B3004, Alton is easy for our technicians to reach at any hour. We also cover the places around Alton: Chawton (1 mile south-west), Holybourne (2 miles north-east), Neatham (2 miles north-east), East Worldham (2 miles south-east) and Golden Pot (2 miles north). We also work in nearby towns such as Basingstoke (10 miles north-west), Farnborough (13 miles north-east), Fleet (10 miles north-east), Aldershot (11 miles north-east), Petersfield (10 miles south) and Yateley (14 miles north-east).
Local landmarks in Alton
In Alton, that means kitchens and buildings near Amery Hill School, Treloar School and The 'Baker's Arms' Public House, among other places. There’s a railway station in Alton itself: Alton station. Well-known places in the area include Allen Gallery (under half a mile east) and Alton Community Hospital (0.9 miles south-west). Green spaces nearby include Holybourne Hill.
Part by part
Fans and fan sections
The fan section is cleaned with the unit switched off and isolated with your site team.
Internal casing and panels
We open each section through its doors and close them securely when we’re done before the unit is handed back.
Common problems we fix in Alton
Whatever surrounds a building in Alton, the air drawn into its AHU carries dust, pollen and debris. Most of it lands at the intake and the first stage of filters, and some travels further into the unit.
Any of these means the system needs a check-up:
- Blocked condensate drains and slimy trays
- Units that have only ever had filter changes
- Stale or musty smells from the ventilation
- Dust built up on fan impellers
Alton Community Hospital, about 0.9 miles south-west, is the nearest hospital to Alton, and healthcare sites of every size need their supply air kept clean.
Comparing quotes
- If the quote is a fixed price or an estimate
- What’s included in the scope, part by part
- Whether they’re fully insured
- What paperwork you get at the end
Nearby places to Alton
Also in Alton
What your team can do, and what needs us
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. That’s our job.
What happens if it’s left?
Dirty coils and fans make the unit strain to move the same air. The result is extra wear and a building that does not feel as comfortable, and a planned clean is far less disruptive than a breakdown. The sooner the work is done, the simpler the job for a site in Alton.
Every site is different, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
Why Alton businesses choose us
- Fully insured
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- In business since 2009
- A single point of contact for sites across the South East and London
See how cleaning jobs are priced and how to check a contractor.
Fixed quotes for AHU cleaning in Alton
We quote each job individually. This is what makes a difference:
- Whether it’s a one-off visit or part of a schedule
- What state the system is in
- The size of the system
- Any permits to work or inductions
One small site or a whole estate, the quote is built the same way: the work involved, the access and the timing. The price is fixed before we start.
What we need to know
What to send for a quote:
- When the site is open and when it’s quiet
- Your last certificate, test record or report
- Detail shots of panels, filters and grilles
- Photos showing the whole system and its surroundings
To help us quote: the address, the type of site and when it’s open, a few photos and any previous report or certificate. Once you have those, call us on 0345 646 2711, or send details by email.
Alton questions
Is AHU cleaning available in Alton?
Yes, Alton is within the area we cover across London and the South East. Get in touch with the details and we’ll arrange a survey.
What’s the best way to get a price for AHU cleaning in Alton?
Start by sending photos of the system and a few details about the site. The quote is fixed, so you know the price before any work starts.
What is TR19?
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.
How do you protect the area?
With sheeting and covers, before anything else happens. The work is kept contained and leave the area clean.
Do you work with multi-site operators?
Yes. Tell us the addresses and what each needs and you will get one fixed quote.
Can you clean without disrupting the building?
Yes, if daytime working isn’t practical. We plan the shutdown window with you.
Do you have a 24/7 line?
Yes, any time. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we’ll advise on what to do next.
What’s included in an AHU clean?
Everything inside the unit that air passes over, from the intake and filters through the coils and fan to the outlet. The photo report shows each section before and after.
Managing agents and facilities teams in Alton
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so each one has its own record.
Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.