Hampshire · Air handling unit cleaning
AHU Cleaning in Over Wallop
AHU cleaning for Over Wallop, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Odours coming through the supply air
- Plant that has been serviced but not cleaned
- Fan sections that haven’t been cleaned in years
What we are called out for in Over Wallop
Whatever surrounds a building in Over Wallop, the air drawn into its AHU carries dust, pollen and debris. The intake section and first filters take the brunt, and the finer material travels on.
Most sites get in touch when they notice one of these:
- Dirty fans and fan housings
- Units needing a clean before a new tenant or handover
- Units that have only ever had filter changes
- Drain trays holding standing water
Ventilation work in and around Over Wallop is risk-based: inspect, then clean what needs it.
Before you book anyone
- If they look at the system before pricing
- Whether the whole system is included, or only the parts that are easy to reach
- When the next visit should be, and why
- When they can work, and whether that’s outside your opening hours
AHU cleaning in Over Wallop
We clean the parts of the unit where dirt and moisture gather: filters, coils, drain trays, fans and the internal panels. You get a TR19® certificate and a photo report showing the unit before and after. If you’re dealing with leaves and litter drawn into the unit and dirty filters cutting the airflow, we can help, from supply and extract fans, drain trays and filter sections onwards.
In a village or hamlet like Over Wallop, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Where
- Over Wallop (SO20)
- Wider area
- Hampshire
- Records
- Written report with photos
- Quotes
- A fixed quote up front
- Working hours
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Between visits
Once we’ve finished, these simple steps help:
- Do not store bins or materials near the intake
- Report stiff or damaged access doors
- Report water on the plant room floor
- Diary the inspection date recommended in the report
If the ductwork hasn’t been cleaned, consider it next. Cleaning the unit and ducts together gives the best result, and we can quote for both.
Make sure access doors and panels on the unit open easily. If a section is hard to get into, it tends not to get checked.
What the work involves, part by part
Rooftop and plant room units
Ceiling-mounted and compact units are cleaned too. The space underneath is protected with sheeting first.
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. Cleaning restores the open path through the fins.
What we do, step by step
The visit has three parts: set-up, the treatment itself and the sign-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 one overnight shift for many single units, with bigger plant phased. Seeing the system in photos first means the trip to Over Wallop can be planned properly.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- After pictures are taken and the certificate issued.
Getting ready for the visit
- Name a contact who can let us in at the agreed time
- Move anything stored near the system
- Dig out any earlier paperwork for the system
How to get a quote
Want a quote for AHU cleaning? Please give us a ring on 0345 646 2711 or email us and tell us about the site. We will talk you through the work and give you a fixed quote before you commit to anything.
Advice
Fixed quotes for AHU cleaning in Over Wallop
The diagnosis comes before the price. The main factors are:
- When the work can happen, such as evenings, overnight or weekends
- Whether several sites go on one quote
- Access, including roofs, risers and ceiling voids
- One-off work versus a regular cycle
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we’ll go through it with you.
Helping us quote
Photos and a few facts are often enough to price the work. Useful things to send:
- A few general shots of the system
- Any symptoms, from odd noises to smells or leaks
- Detail shots of panels, filters and grilles
- Any previous report or certificate
If you need AHU cleaning in Over Wallop, phone us on 0345 646 2711, or email photos. Tell us what kind of premises it is and when it’s open, and send pictures or your last report if you can. A fixed quote usually follows within one working day.
AHU cleaning around Over Wallop
Over Wallop is on our map: we cover London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site.
Classrooms and halls at schools such as Wallop Primary School are easiest to work in when pupils are away.
Over Wallop is about 7 miles south-west of Andover, in Hampshire. From the centre of Over Wallop to the outskirts, AHU cleaning is available to all kinds of commercial premises, from a single unit to a large public building. Over Wallop is one of 683 towns, villages and districts in Hampshire where we work for commercial clients. Our Southampton page covers sites nearby (18 miles or so).
Here we cover the SO20 postcode area for AHU cleaning. Streets in the area include Station Road, King Lane and King Lane Cottages, and we cover them all for AHU cleaning. Nearby, we also carry out AHU cleaning in Middle Wallop (1 mile south-east), Kentsboro (2 miles north-east), Nether Wallop (2 miles south-east), Fox (3 miles north) and Amport (4 miles north). Within a short drive, we also cover Winchester (13 miles south-east), Andover (7 miles north-east), Chandler's Ford (14 miles south-east), Romsey (12 miles south-east), Hyde (13 miles south-east) and Tidworth (7 miles north-west).
What’s near Over Wallop
We work in commercial kitchens and buildings around The White Hart Inn, among other places. The closest station to Over Wallop is Grateley station, about 2 miles north-west. Green spaces nearby include Winterbourne Downs RSPB reserve and Quarley Hill.
Questions from Over Wallop
Can you come to Over Wallop after we close?
Yes, nights and weekends are routine for us. It means the site in Over Wallop keeps running as normal. When you call us on 0345 646 2711 or drop us a line, mention when the site is quiet.
Do you work in villages like Over Wallop?
Yes, we work in villages as well as towns, and Over Wallop is covered. Photos of the system and directions to the site help us plan the visit.
Which kinds of sites do you work on?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, as well as food production and leisure sites.
Can you quote from pictures?
Yes, if we can see what we need. Otherwise, we book a survey at a time that suits the site, then a fixed quote.
Do you offer maintenance contracts?
Yes. Scheduled maintenance plans are part of what we do, with visits at the interval your system needs. The report from each visit recommends the next date.
What do you do to protect the area?
Protection goes down first: floor sheeting and covers over nearby surfaces and equipment. The area is left tidy, with our waste taken away.
Can you clean the ducts connected to the AHU?
Yes. We clean supply and extract ductwork to TR19® Air as well. It’s often worth doing both at once, and we can quote for both.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line for anything that can’t wait until a planned visit. Call us any time and explain what’s happened.
Nearby places to Over Wallop
Also in Over Wallop
What a clean will not put right
We’ll always give you a straight diagnosis, so here’s what AHU cleaning will not do:
- A system that’s undersized for the building
- Ductwork downstream of the unit, which is a separate clean
- Problems with the unit’s controls or sensors
Not sure which it is? You can ring 0345 646 2711 or send us an email and we’ll tell you honestly before you book.
Parts of the system we cover
- Supply and extract fans
- Dampers and louvres
- Internal panels
- Filter sections
- Heating and cooling coils
- Drain trays
Leave it or put it right?
A clogged coil or dirty fan makes the unit work harder for the same airflow. That means more wear on the motor and rooms that feel less fresh, and a planned clean is far less disruptive than a breakdown. Our emergency line runs 24/7, but a planned visit to Over Wallop is calmer for everyone.
One small site or a whole estate, the quote is built the same way: the work involved, the access and the timing. You will have a fixed price before work begins.
Why book with us
- We diagnose before we treat
- A written report with pictures after every visit
- Accredited under CHAS and SafeContractor, with ISO 9001
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease