Hampshire · Air handling unit cleaning
AHU Cleaning in Overton
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Overton, surveyed first and signed off with a written report and photos. Call for a fixed quote.
- Dirty coils holding back the airflow
- Fan sections that haven’t been cleaned in years
- Drain trays holding standing water
How we handle AHU cleaning in Overton
A cooling coil drips condensate into a tray that should drain away. When the drain blocks, water sits there and the tray turns slimy, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. The work covers dampers and louvres, supply and extract fans and heating and cooling coils, and people most often call us about dirty coils holding back the airflow and plant that has been serviced but not cleaned.
Smaller buildings around Overton often keep their ventilation units in a roof void or plant cupboard, where they’re easy to forget. Every unit, large or small, has filters, coils and a drain tray to keep clean.
Good records are part of the job. You get a written report with pictures after every visit, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Where
- Overton (RG25)
- Wider area
- Hampshire
- Paperwork
- Photo report after every visit
- Quote
- A fixed price before work begins
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
FAQs for Overton
Do you work at weekends in Overton?
Yes, out-of-hours work is a big part of what we do. It means the site in Overton keeps running as normal. Tell us your opening hours when you ask for a quote.
Do you offer AHU cleaning in Overton?
Yes. We work across London and the South East, and Overton is part of that. Get in touch with the details and we will arrange a survey.
Do you repair air handling units?
Our AHU work is cleaning rather than mechanical repair. If we spot a fault, we note it in the report for your maintenance team to follow up.
How do you protect the area?
We cover floors and nearby surfaces with sheeting before work begins, and anything we remove is contained. Before we leave, we tidy up and clean down.
Can you come out in an emergency?
Yes. Our emergency line runs 24/7, for problems that cannot wait. Ring any time and tell us what’s happened.
What if parts of the system can’t be reached?
We record them on the report, with photos where possible, and we tell you what would make it reachable, for example new access panels.
Can you set up regular visits?
Yes, of course. Send details of the systems and how they’re used and we will propose a schedule with a fixed quote.
Do you do ventilation duct cleaning too?
Yes. Ductwork is cleaned through access panels, and any sections we can’t reach are noted in the report, and new panels can be fitted.
Other services in Overton
Fixed quotes for AHU cleaning in Overton
We do not publish a price list, because no two systems are the same. The quote depends on:
- The condition we find in the survey
- Site requirements such as sign-in and permits
- How easy every part is to reach
- How many systems or sites are involved
One small site or a whole estate, we price it on the same basis: the work involved, the access and the timing. The price is fixed before we start.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- A few general shots of the system
- The roof, plant room or outside wall the system runs to
- Close-ups of filters, grilles, hatches or access panels
- Any previous report or certificate
Getting a quote does not take long. Call or email with a few details and you will normally have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
In-house cleaning or a specialist?
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you can’t see still need a specialist at the right interval.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, next to our reports.
Common problems we fix in Overton
Cooling coils create condensation, and that water has to go somewhere. If the drain tray outlet blocks or the tray does not fall properly, water stands in it, and slime and smells soon follow.
Look out for any of the following:
- Units that have only ever had filter changes
- Fan sections that haven’t been cleaned in years
- Dirty filters cutting the airflow
- Plant that needs cleaning after a refit
Wherever a school like Overton Church of England Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Before booking anyone
- Whether a survey comes first
- What records you’ll receive afterwards
- Proof of accreditation you can verify
- What’s included in the scope, part by part
How the visit works
The visit has three parts: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with pictures. The middle part takes longest, which takes anything from half a day for one small unit to several shifts for a plant room full of them. Tell us about any gates, ladders or locked plant areas at your site near Overton when you book.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Before we arrive
- Clear loose items from the work area
- Find the previous report, if there is one
- Allow time for equipment near the work to be turned off and cool down
Getting a quote
Need a price for AHU cleaning? Please ring 0345 646 2711, or email photos and tell us about the site. We will explain what we’d do and send a fixed quote before anything is booked.
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Multi-site and managed buildings
From a single site to a large estate, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with pictures.
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 photos, so each one has its own record.
What AHU cleaning looks like in Overton
About 53 miles out from central London, Overton is part of the South East area we work across. Evening, overnight and weekend visits are all possible.
If you manage shops or offices close to Overton station, a TR19® Air inspection shows whether the ductwork needs cleaning.
Overton is about 7 miles west of Basingstoke, in Hampshire. Across the RG25 area, we can take on AHU cleaning. We cover 683 places across Hampshire, large and small. There’s also a page for Reading, roughly 19 miles from Overton.
Our technicians cover all of RG25 for AHU cleaning and the roads nearby. Local streets include High Street, Station Road and London Road, all of which we cover for AHU cleaning. Neighbouring places we cover for AHU cleaning include Southington (1 mile west), Quidhampton (1 mile north), Laverstoke (2 miles south-west), Freefolk (2 miles west) and Deane (2 miles east). We also work in nearby towns such as Basingstoke (7 miles east), Winchester (13 miles south), Andover (10 miles west), Alton (14 miles south-east), Tadley (9 miles north-east) and Hook (14 miles east).
Landmarks near Overton
We work in commercial kitchens and buildings around The Greyhound pub, among other places. For rail, the closest station is Overton station, roughly 0.8 miles north.
What AHU cleaning can’t fix
To be straight with you, some problems need a different fix:
- Mechanical faults with motors, belts or bearings
- Airflow problems caused by the system’s design
- Problems with the unit’s controls or sensors
If you are not sure, just call 0345 646 2711 or send us an email and we’ll give you a straight answer before booking.
Where we work
- Drain trays
- Internal panels
- Supply and extract fans
- Heating and cooling coils
- Dampers and louvres
- Filter sections
What the work involves, part by part
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. We note any we find in the report.
Heating and cooling coils
Coil fins are close together and catch the dust the filters miss. We clean them with care so the fins aren’t damaged.