Hampshire · Air handling unit cleaning
Air handling unit cleaning in Charlton, Hampshire
AHU cleaning for Charlton and the surrounding area: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Dirty coils holding back the airflow
- Dirty fans and fan housings
- Stale or musty smells from the ventilation
Aftercare tips
Think of this as the after-treatment advice, short and simple:
- Plan the next inspection before the last report gets filed away
- Flag stale or damp smells in the supply air
- Keep the area around the fresh air intake clear
- Report water on the plant room floor
When we have closed the unit up, it can be restarted with your site team. Keep an eye on the condensate drain over the next few days to make sure it stays clear.
Keep the unit’s doors and panels in working order. If a section is hard to get into, it tends not to get checked.
AHU cleaning in Charlton
All the building’s air passes through the fan, so dust on its blades and housing ends up in the airstream. Fan, housing and the surrounding panels are cleaned as part of the job, with the unit switched off and made safe first. The work covers dampers and louvres, internal panels and heating and cooling coils, and common reasons people get in touch are plant that needs cleaning after a refit and dirty coils holding back the airflow.
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.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Place
- Charlton (SP10)
- Wider area
- Hampshire
- Records
- Written report with photos
- Quotes
- A fixed price before any work starts
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
Multi-site and managed buildings
If you look after several sites, we can schedule visits across all of them on one quote. Each site gets its own report and photos, so each one has its own record.
From a single site to a large estate, the standard is the same: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.
Places near Charlton
Other services in Charlton
What your team can do, and what needs us
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
Your questions about AHU cleaning in Charlton
Do you work in villages like Charlton?
Yes, we work in villages as well as towns, and Charlton is covered. Let us know about access, parking and anything unusual about getting there when you book.
Do you work at weekends in Charlton?
Yes. We work evenings, overnight and at weekends. Your customers, staff or residents in Charlton needn’t be disturbed. Let us know the hours you are closed and we’ll book within them.
Are you fully insured?
Yes. We carry full insurance and have been trading since 2009.
Which parts of an air handling unit do you clean?
Every section that collects dirt: filters, coils, tray, fan and panels. We confirm the scope after looking at the unit.
Do you clean the ductwork as well?
Yes, supply and extract ducts, grilles and diffusers. We’ll tell you after the survey whether the ducts need it.
What is TR19?
A BESA specification, with two parts that matter most here: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It isn’t legislation, but it’s the standard people check against.
Which accreditations do you hold?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
Do you give a certificate after the clean?
Yes. Every clean comes with a TR19® certificate and a photo report. They’re worth keeping with the plant records.
What we’re called out for in Charlton
It matters for two reasons: air quality, since the unit feeds occupied rooms, and performance, since dirt makes it strain. For the people using the building every day, that is the air they breathe for hours on end.
Most sites get in touch when they notice one of these:
- Dirty filters cutting the airflow
- Air handling units never cleaned inside
- Dirty coils holding back the airflow
- Rooms that smell stuffy when the system runs
Classrooms and halls at schools such as Harrow Way Community School are easiest to work in when pupils are away.
Questions to ask before booking
- Whether they recommend a next date
- Whether a written report and photos are included
- Whether the whole system is included, or only the parts that are easy to reach
- Whether the price is fixed
When something else is needed
Some problems need a different service or another trade:
- Coils that are corroded or leaking and need replacing
- Building management system faults
- Airflow problems caused by the system’s design
If you are not sure, just ring 0345 646 2711 or drop us a line and we’ll give you a straight answer before you book.
What we work on in Charlton
- Filter sections
- Drain trays
- Internal panels
- Dampers and louvres
- Heating and cooling coils
- Supply and extract fans
The process
Your trading hours come first. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the job takes half a day to a full day per unit, with large plant planned over several shifts. Seeing the system in pictures first means the trip to Charlton can be planned properly.
- First the unit is surveyed, from pictures or a visit, and the scope agreed.
- The unit is shut down with your site team and the area protected.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Standing water and slime come out of the tray and the drain is checked.
- You get a TR19® certificate and a photo report.
Getting ready for the visit
- Let us know how we reach the system, including roofs, risers and plant rooms
- Have your last certificate or report to hand
- Mention any sign-in, permit or induction we need
Getting a quote
Some systems can be priced from pictures; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
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What affects the cost of AHU cleaning
Your quote is based on your site. We consider:
- A single visit or a regular plan
- Access, including roofs, risers and ceiling voids
- Where the site is and how we reach it
- Site rules, permits and inductions
Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
What to send for a quote
A few details help us quote accurately. When you get in touch, it helps to send:
- Photos showing the whole system and its surroundings
- How we’d reach plant on a roof or in a plant room
- The site address and the type of premises
- Detail shots of panels, filters and grilles
Every quote begins with a look at the system, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price so you know the cost before any work starts.
AHU cleaning in Charlton: local notes
The FSA’s food hygiene register lists about 7 schools, colleges and universities and about 19 care, childcare and hospital premises with registered kitchens or food service within 1.5 miles or so of the middle of Charlton. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. About 0.5 miles south-east of Charlton is Andover War Memorial Hospital, the nearest hospital. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
If you manage shops or offices close to Andover station, a TR19® Air inspection shows whether the ductwork needs cleaning. Andover War Memorial Hospital, about 0.5 miles south-east, is the nearest hospital to Charlton, and healthcare sites of every size need their supply air kept clean.
Charlton is about 1 mile north-west of Andover, in Hampshire. For AHU cleaning in and around Charlton, please phone us on 0345 646 2711, or email photos for a fixed quote. We work across South East England and London, Charlton included. Across Hampshire, we cover 683 places, Charlton among them. We also work in Southampton, around 22 miles away.
Work in SP10 follows the same survey, fixed quote and written report as everywhere else we cover. You’ll find streets such as Dacre Close, Home Farm Gardens and Augustine Way, and we cover them all for AHU cleaning. If your site is just outside Charlton, we cover Foxcotte (1 mile north-west), Penton Mewsey (1 mile west), Penton Corner (1 mile west), Penton Grafton (1 mile west) and Red Post Bridge (2 miles south-west). Within a short drive, we also cover Winchester (14 miles south-east), Hyde (13 miles south-east), Tidworth (7 miles west), Weeke (13 miles south-east), Stanmore (14 miles south-east) and Ludgershall (6 miles north-west).
Landmarks near Charlton
Around Charlton, our work takes us to kitchens and buildings near Portway Infant School, among other places. The nearest railway station is Andover station, roughly 0.8 miles south-east of the centre. Nearby you’ll also find Andover War Memorial Hospital (0.5 miles south-east) and Andover Museum (1.3 miles south-east). For a walk, there’s Anton Lakes and Mill Lake.