Hampshire · Air handling unit cleaning
AHU Cleaning in Nether Wallop
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Nether Wallop, surveyed first and signed off with a written report and pictures. Call for a fixed quote.
- Intake sections clogged with outdoor debris
- Odours coming through the supply air
- Fan sections that haven’t been cleaned in years
AHU cleaning in Nether Wallop
An air handling unit is the heart of a building’s ventilation: air is pulled in, filtered, conditioned and sent out through the ducts. Whatever builds up inside it travels with that air, which is why we clean the unit itself, not just the ducts. Typical jobs include filters that are clogged or overdue and debris and leaves in the fresh air intake, across drain trays, heating and cooling coils and internal panels.
For a building in or near Nether Wallop, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
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. Any parts we couldn’t reach are recorded on it too.

- Location
- Nether Wallop (SO20)
- Wider area
- Hampshire
- Records
- Photo report after each visit
- Price
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
How we price AHU cleaning
A fixed price needs a few facts first. We look at:
- Site rules, permits and inductions
- The size of the system
- Parking and loading at the site
- A single visit or a regular plan
The cost depends on how big the system is, what state it’s in and how easy it is to reach. We give you a fixed price before any work starts, so there are no surprises.
Helping us quote
To speed up the quote, please include:
- Where the site is and what kind of site it is
- When the site is open and when it’s quiet
- The paperwork from the last visit, if you have it
- Close-ups of filters, grilles, hatches or access panels
Getting a quote does not take long. Send a few details and pictures, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Nearby places to Nether Wallop
What else we do in Nether Wallop
Different parts, different methods
Heating and cooling coils
Because cooling coils run wet, the dirt on them tends to cling. The coil and its drain tray are cleaned as one job.
Drain trays
Older trays can corrode and start leaking. Their condition goes into the report with photos so repairs can be planned.
For landlords and multi-site operators
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We are happy to deal with either side, and the report can go to both.
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.
Between visits
A little care between visits keeps the system in better shape. Our advice:
- Diary the inspection date recommended in the report
- Look at the condensate drain whenever the unit is serviced
- Stick to the filter change plan
- Keep the certificate and photo report with the plant records
Stick to the filter change schedule, because good filters protect everything downstream. Record each change in the maintenance log.
Regular inspection under TR19® Air shows when cleaning is due instead of leaving it to guesswork.
Honest limits
Before booking, it helps to know what’s not included:
- Controls and BMS settings that run the unit
- Mechanical faults with motors, belts or bearings
- Airflow problems caused by the system’s design
If you’re not sure, just call us on 0345 646 2711, or send details by email and we’ll give you a straight answer before booking.
Parts of the system we cover
- Drain trays
- Filter sections
- Internal panels
- Dampers and louvres
- Heating and cooling coils
- Supply and extract fans
Nether Wallop buildings and their air
Our area takes in London and the South East, Nether Wallop included. A survey and a fixed quote come first, then the visit at a time that suits you.
In Nether Wallop, we look inside the system before deciding what needs cleaning. If you manage a school such as Wallop Primary School, ventilation cleaning is best booked for the holidays.
Nether Wallop is about 7 miles south-west of Andover, in Hampshire. Anywhere in SO20, we can carry out AHU cleaning at your premises. Across Hampshire, we cover 683 places, and Nether Wallop is one of them. There’s also a page for Southampton, about 16 miles away.
All of SO20 is covered for AHU cleaning, from busy streets to back roads. Whether your site is on Church Road, High Street and Church Hill or anywhere close by, our technicians can take on the work. Other places close to Nether Wallop include Middle Wallop (1 mile north-west), Over Wallop (2 miles north-west), Kentsboro (2 miles north), Red Rice (4 miles north-east) and Fox (4 miles north). Larger places within reach include Winchester (12 miles south-east), Eastleigh (15 miles south-east), Andover (7 miles north-east), Totton (15 miles south), Chandler's Ford (13 miles south-east) and Romsey (10 miles south).
Around Nether Wallop
Around Nether Wallop, our work takes us to kitchens and buildings near The Old Butchers Arms and the streets around them. The closest station to Nether Wallop is Grateley station, roughly 3.8 miles north-west of the centre. Not far away are Boscombe Down East.
Common questions in Nether Wallop
Will you come out to Nether Wallop?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
Do you work overnight in Nether Wallop?
Yes, nights and weekends are routine for us. Your customers, staff or residents in Nether Wallop needn’t be disturbed. When you ring 0345 646 2711 or drop us a line, mention when the site is quiet.
How much does AHU cleaning cost?
We do not publish prices, because the cost 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.
Can you set up regular visits?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.
How much notice do you need?
It depends on the time you need and how big the job is. Tell us your preferred dates when you ask for a quote, and for anything urgent, ring our 24/7 emergency line.
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.
Which parts of an air handling unit do you clean?
All the internal parts the air touches, from the intake and filters through the coils and fan to the outlet. The photo report shows each section before and after.
Do you repair air handling units?
We clean the unit and flag faults rather than repair them, with pictures where it helps.
How it works
Your staff don’t need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. Photos of the system and how to reach it help us plan a visit to Nether Wallop.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before photos of each section of the unit.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- We take after photos and issue the certificate and report.
Before we arrive
- Move anything stored near the system
- Mention any sign-in, permit or induction we need
- Name a contact who can let us in at the agreed time
Getting a quote
Want a quote for AHU cleaning? Please ring 0345 646 2711 or send us an email with a few details about the site. We will talk you through the work and give you a fixed quote before anything is booked.
Related advice
What staff can safely do
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We can diagnose it and quote.