Hampshire · Air handling unit cleaning
Little Holbury AHU cleaning
Looking for AHU cleaning in Little Holbury? We survey first, give you a fixed quote and work around your opening hours, then sign off with a report and photos.
- Leaves and litter drawn into the unit
- Air handling units due a clean after building work
- Dirty fans and fan housings
AHU cleaning in Little Holbury, done properly
The fan pushes every bit of air in the system, so dust on its blades and housing ends up in the airstream. We clean the fan section along with the rest of the unit, once the unit has been shut down and isolated. The work covers dampers and louvres, heating and cooling coils and supply and extract fans, and the jobs we see most are odours coming through the supply air and dirty fans and fan housings.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. We’re also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Where
- Little Holbury (SO45)
- Region
- Hampshire
- Records
- Report and photos after the visit
- Price
- A fixed price before any work starts
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
Keeping the system healthy
So the system stays in good health:
- Diary the inspection date recommended in the report
- Do not store bins or materials near the intake
- Look at the condensate drain whenever the unit is serviced
- Report water on the plant room floor
You receive a TR19® certificate and a photo report after the clean. They belong in the plant or maintenance log.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.
Part by part
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. We clean the impeller, housing and surrounding section.
Drain trays
A tray that does not drain becomes a pool of stagnant water in the airstream. We clean it and report anything about the tray or drain that needs fixing.
When something else is needed
We will not sell you work that does not address the problem, so here are the limits:
- Dirty ducts beyond the unit itself
- Damaged coils beyond cleaning
- Controls and BMS settings that run the unit
If you’re not sure, just call us on 0345 646 2711 or send us an email and we’ll give you a straight answer.
What the work covers
- Filter sections
- Drain trays
- Internal panels
- Dampers and louvres
- Supply and extract fans
- Heating and cooling coils
Signs you need AHU cleaning in Little Holbury
No filter stops everything. What gets through settles on coils, fans and the inside of the casing, a little more each month.
Look out for these warning signs:
- Filters that are clogged or overdue
- Plant that needs cleaning after a refit
- Rooms that smell stuffy when the system runs
- Air handling units never cleaned inside
If you manage a school such as Manor Church of England Infant School, ventilation cleaning is best booked for the holidays.
What to look for in a quote
- Whether a written report and pictures are included
- If the quote is a fixed price or an estimate
- Whether the whole system is included, or only the parts that are easy to reach
- How VAT is shown on the quote
What happens on the day
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that is an evening, overnight or a weekend. Once we are in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes from a few hours for a compact unit to a day or more for a large one. A few pictures of the system help us make the most of a visit to a place like Little Holbury.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- We arrange the shutdown with your staff and sheet the area.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- We clean out the drain tray and make sure it drains.
- We close up the unit and send the certificate and before and after pictures.
Before we arrive
- Clear loose items from the work area
- Allow time for equipment near the work to be turned off and cool down
- Have your last certificate or report to hand
Get a fixed quote
Want a quote for AHU cleaning? Please phone us on 0345 646 2711 or use the quote form and tell us about the site. We will explain what we’d do and send a fixed quote before anything is booked.
Related advice
What staff can safely do
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We will take a look and give you a fixed quote.
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. Leave those to us.
Your questions about AHU cleaning in Little Holbury
Will you come out to Little Holbury?
Yes. Villages and rural sites across the South East are part of our work, Little Holbury included. Photos of the system and directions to the site help us plan the visit.
Can you come to Little Holbury after we close?
Yes. We work evenings, overnight and at weekends. The work in Little Holbury can fit around your hours. Let us know the hours you’re closed and we will book within them.
How long does an AHU clean take?
Typically the clean takes from a few hours for a compact unit to a day or more for a large one. We plan the shutdown around that, including evenings or weekends.
Do you have insurance?
Yes. We carry full insurance, and we have been trading since 2009.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Are you accredited?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
Can you fix a faulty AHU?
AHU cleaning is what we offer here, not mechanical repairs. If we spot a fault, we note it in the report for your maintenance team to follow up.
Is there a report after cleaning?
Yes. You get a TR19® certificate plus before and after photos. Keep them in the maintenance log.
Ventilation in Little Holbury buildings
Food Standards Agency data includes about 7 schools, colleges and universities and about 6 care, childcare and hospital premises within roughly a mile and a half of the centre of Little Holbury. Busy, occupied buildings like these are where clean supply air matters most. Little Holbury’s nearest hospital, Coldeast, is about 5.3 miles north-east. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
Healthcare ventilation, from large hospitals like Coldeast (about 5.3 miles north-east) to small clinics, depends on clean filters, coils and ducts.
Little Holbury is about 2 miles south of Hythe, in Hampshire. We provide AHU cleaning for businesses, landlords and public buildings in Little Holbury and the rest of Hampshire. Little Holbury is one of 683 towns, villages and districts in Hampshire we cover for AHU cleaning. You can also see our page for Southampton, roughly 6 miles from Little Holbury.
Every address in SO45 is within our area for AHU cleaning, from the main roads to the quietest streets. If you need AHU cleaning at premises on Southbourne Avenue, Manor Road and Westbourne Avenue or a nearby road, we can help. Other places close to Little Holbury include Holbury (1 mile south-east), Hardley (1 mile north), Roughdown (1 mile south), Blackfield (1 mile south-east) and Frostlane (2 miles north). Further out, we also cover Gosport (10 miles east), Eastleigh (10 miles north), Fareham (8 miles east), Totton (8 miles north-west), Chandler's Ford (11 miles north) and Hedge End (7 miles north-east).
Local landmarks in Little Holbury
Typical jobs here are in premises near The New Forest Academy and the streets around them. For rail, the closest station is Netley station, roughly 3.6 miles north-east. A little further out are Beaulieu Abbey And Display Of Monastic Life (2.9 miles west) and Netley Castle (3.3 miles north). Not far away are Mercury Marshes.
Why deal with it now?
Leave an AHU uncleaned and the dirt does not stay put. It moves on into the ductwork and out into the rooms, which is why the unit and the ducts are best cleaned together. It’s simpler to plan the work at Little Holbury now than to arrange it in a hurry later.
Putting the work off seldom saves money. Problems in a system tend to grow, and a neglected system can mean more work. If you are not sure what’s needed, give us a ring on 0345 646 2711 or send us an email for straight advice and a fixed quote.
Why choose Duct Doctor in Little Holbury
- Ventilation hygiene specialists since 2009
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Fixed quotes, typically within one working day
- A single point of contact for sites across the South East and London
Take a look at what affects the cost and how to check a contractor.