Hampshire · Air handling unit cleaning
AHU Cleaning in Exton
Specialist AHU cleaning for Exton: diagnosis first, then a fixed quote, the work and a report with pictures. Ask us for a fixed quote.
- Dust built up on fan impellers
- Units needing a clean before a new tenant or handover
- Condensate trays that won’t empty
AHU cleaning for kitchens and businesses in Exton
Drain trays under cooling coils are meant to empty. When the drain blocks, water sits there and the tray turns slimy, right in the path of the air going into the building. Clearing and cleaning the tray is central to every AHU clean. If you are dealing with dirty fans and fan housings and dirty filters cutting the airflow, we can put it right, from dampers and louvres, supply and extract fans and internal panels onwards.
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.
Each visit ends with a written report and photos, so you have a record of what was done and when. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Place
- Exton (SO32)
- Region
- Hampshire
- Paperwork
- Written report with pictures
- Price
- A fixed price before we start
- Hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Staff cleaning versus specialist work
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.
What we’re called out for in Exton
Cooling coils create condensation, and that water has to go somewhere. A blocked outlet or a badly sloped tray leaves standing water, and slime and smells soon follow.
Keep an eye out for these warning signs:
- Plant that needs cleaning after a refit
- Leaves and litter drawn into the unit
- Rooms that smell stuffy when the system runs
- Dust built up on fan impellers
Around Exton, as anywhere, ventilation cleaning begins with an inspection.
What to look for in a quote
- When they can work, and whether that is outside your opening hours
- If they look at the system before pricing
- Whether VAT is included
- Proof of insurance
What a clean won’t put right
AHU cleaning cannot fix everything, and we will tell you before we start. It will not put right:
- Dirty ducts beyond the unit itself
- Building management system faults
- Breakdowns that need a mechanical engineer
If in doubt, call us on 0345 646 2711 or use the quote form and we’ll say what we think.
What the work covers
- Drain trays
- Dampers and louvres
- Filter sections
- Internal panels
- Supply and extract fans
- Heating and cooling coils
What happens if it’s left?
Dirt left in an air handling unit doesn’t stay in the unit. It moves on into the ductwork and out into the rooms, which is why the unit and the ducts are best cleaned together. Somewhere as small as Exton, losing a kitchen or building to a fault is felt by everyone who uses it.
The cost depends on how big the system is, the condition it’s in and how easy it is to reach. You get a fixed price before we start, so there are no surprises.
Why book with us
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Every job surveyed first
- Fixed quotes from a survey or pictures
- Every visit written up, with photos
See our cost guide and how to check a contractor.
Towns and villages near Exton
Other services in Exton
Exton questions
Can ventilation in schools around Exton be cleaned out of term?
Yes, and it’s the easiest time to do it. With about 2 schools and colleges on the FSA’s register within roughly a mile and a half of Exton, it pays to plan holiday dates ahead. Send us your term dates when you phone us on 0345 646 2711 or send us an email, and we’ll fit the work in.
Can you work in Exton outside opening hours?
Yes, nights and weekends are routine for us. Your customers, staff or residents in Exton needn’t be disturbed. Let us know the hours you’re closed and we will book within them.
Do you need to switch the unit off?
Yes. We can’t clean a running unit, so it’s switched off and made safe first. We agree the timing with your site team.
Do you work with multi-site operators?
Yes. One number covers all your sites across London and the South East, with visits on a regular schedule.
How often do AHUs need cleaning?
That is set by inspection, in line with TR19® Air. A hard-working unit, or one serving a hospital or care home, may need cleaning more often.
What’s included in an AHU clean?
Every section that collects dirt: filters, coils, tray, fan and panels. We confirm the scope after looking at the unit.
How long does it take to clean an air handling unit?
Typically the clean takes half a day to a full day per unit, with large plant planned over several shifts. The shutdown is planned to fit, including evenings or weekends.
Which accreditations do you hold?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We are fully insured and have been trading since 2009.
What affects the quote in Exton
A fixed price needs a few facts first. We check:
- Parking and loading at the site
- Site requirements such as sign-in and permits
- Whether it’s a one-off visit or part of a schedule
- How easy every part is to reach
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you’re unsure, ring 0345 646 2711 or use the quote form and we will give you an honest view and a fixed quote.
Asking for a quote
To help us quote quickly, please include:
- How we’d reach plant on a roof or in a plant room
- The paperwork from the last visit, if you have it
- Any symptoms, from odd noises to smells or leaks
- Photos showing the whole system and its surroundings
To get a fixed quote, phone us on 0345 646 2711 or email us and tell us the type of site, your opening hours and roughly what the system looks like. A few photos and your last certificate or report help a lot. You’ll typically have a quote within one working day.
Between visits
Results last longer with the right care. Here’s what we suggest:
- Check the drain tray is emptying during routine visits
- Change filters on schedule and log each change
- Diary the inspection date recommended in the report
- Report stiff or damaged access doors
We recommend when the unit should next be inspected or cleaned, taking into account how dirty it was. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Make the drain tray part of every maintenance visit. A drain that’s cleared early never gets to the slime stage.
Exton buildings and their air
At about 57 miles from central London, Exton sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site.
Classrooms and halls at schools such as Meonstoke Church of England Infant School are easiest to work in when pupils are away.
Exton is about 7 miles north-west of Horndean, in Hampshire. Sites in Exton get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with pictures. Exton is one of 683 places in Hampshire where we work for commercial clients. We also work in Southampton, about 12 miles from Exton.
All of SO32 is covered for AHU cleaning, from busy streets to back roads. Whether your site is on Shoe Lane, Church Lane and Beacon Hill Lane or anywhere close by, our technicians can take on the work. We also cover Corhampton (1 mile south), Meonstoke (1 mile south), Brockbridge (1 mile south), Droxford (2 miles south) and Soberton (3 miles south). Further out, we also cover Winchester (10 miles north-west), Gosport (12 miles south), Havant (10 miles south-east), Eastleigh (10 miles west), Fareham (10 miles south) and Horndean (7 miles south-east).
Landmarks near Exton
Locally, jobs take us to businesses close to The Shoe Inn, among other places. Open spaces near Exton include St Clair's Meadow and Beacon Hill.
How it works
There’s very little for your team to do 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. Somewhere like Exton, lanes, gates and parking are worth mentioning in advance.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Preparing for the visit
- Have your last certificate or report to hand
- Mention any locked doors, roof access or ceiling voids
- Move anything stored near the system
Ask for a quote
Quotes are quick. Send a few details and photos, and we usually reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.