Hampshire · Air handling unit cleaning
Air handling unit cleaning in Southwick, Hampshire
Need AHU cleaning in Southwick? We diagnose first, fix the price and book the work around your hours, then sign off with a report and photos.
- Intake sections clogged with outdoor debris
- Air handling units never cleaned inside
- Blocked condensate drains and slimy trays
What your team can do, and what needs us
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We can diagnose it and quote.
How we handle AHU cleaning in Southwick
A cooling coil drips condensate into a tray that should drain away. 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. Typical jobs include dirty coils holding back the airflow and intake sections clogged with outdoor debris, on dampers and louvres, heating and cooling coils and drain trays.
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.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
- Where
- Southwick (PO17)
- Region
- Hampshire
- Reporting
- Report and photos after the visit
- Quotes
- A fixed price before work begins
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Nearby places to Southwick
Also in Southwick
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
Heating and cooling coils have tightly packed fins that trap fine dust. We clean them with care so the fins are not damaged.
Why act early in Southwick
A slimy drain tray only gets worse. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Dealing with it early keeps the clean straightforward. In a place like Southwick, ductwork and fans are easy to forget until something goes wrong.
Several systems or sites on one quote often makes better use of the time. Tell us about everything you’d like looked at, and you will get one fixed quote.
Why book with us
- Survey first, then a fixed quote
- A written report with pictures after each visit
- A single point of contact for sites across the South East and London
- CHAS and SafeContractor accredited, with ISO 9001
See how cleaning jobs are priced or how to check a contractor.
How it works
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 work takes anything from half a day for one small unit to several shifts for a plant room full of them. Somewhere like Southwick, lanes, gates and parking are worth mentioning in advance.
- We agree a shutdown window that suits the building.
- We take before pictures of each section of the unit.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- We take after pictures and issue the certificate and report.
How to prepare
- Clear loose items from the work area
- Plan for cooking equipment or plant to be off before we arrive
- Mention any sign-in, permit or induction we need
Ask for a quote
Every quote begins with a look at the system, from your photos and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work so you know the cost before any work starts.
Read more
What a clean won’t put right
In fairness, there are a few things this work will not fix:
- The supply and extract ducts, quoted separately
- Controls and BMS settings that run the unit
- Faulty motors, drives or bearings
If in doubt, give us a ring on 0345 646 2711 or drop us a line and we will say what we think before you book.
What we work on in Southwick
- Internal panels
- Dampers and louvres
- Heating and cooling coils
- Supply and extract fans
- Filter sections
- Drain trays
Managing agents and facilities teams in Southwick
Records are where multi-site compliance often slips. Every visit ends with a dated report and pictures, ready to show insurers, fire officers or EHOs.
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.
Southwick buildings and their air
Queen Alexandra Hospital is the nearest hospital, about 2.5 miles south-east of Southwick. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Healthcare buildings such as Queen Alexandra Hospital, about 2.5 miles south-east, depend on their ventilation; if you manage a surgery, clinic or care home near Southwick, yours matters too. Wherever a school like King Richard School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Southwick is about 3 miles west of Purbrook, in Hampshire. Wherever you are in the PO17 postcode area, we can carry out AHU cleaning at your premises. Across Hampshire, we cover 683 places, Southwick among them.
Here we cover the PO17 postcode area for AHU cleaning. That includes premises on High Street, North Road West and Castle Road and the roads around them. We also cover Boarhunt (1 mile west), North Boarhunt (2 miles north-west), Portchester (2 miles south), Hundred Acres (3 miles north-west) and North Fareham (3 miles west). We also work in nearby towns such as Gosport (5 miles south), Havant (5 miles east), Eastleigh (12 miles north-west), Fareham (4 miles west), Horndean (5 miles north-east) and Chandler's Ford (14 miles north-west).
Landmarks near Southwick
In Southwick, that means kitchens and buildings near Red Lion Inn and the streets around them. The closest station to Southwick is Portchester station, about 1.9 miles south of the centre. A little further out are Portchester Castle (2.6 miles south) and Fareham Shopping Centre (3.2 miles south-west). For a walk, there’s Portsdown Hill and St Clair's Meadow.
Common questions in Southwick
Can you work in Southwick outside opening hours?
Yes, evening, overnight and weekend work is normal for us. It means the site in Southwick keeps running as normal. Just give us a ring on 0345 646 2711, or email photos with your opening times and we will plan around them.
Do you offer AHU cleaning in Southwick?
Yes, Southwick is covered. Get in touch with the details and we will arrange a survey.
Does the AHU have to be shut down for cleaning?
Yes. The unit has to be shut down and isolated before it’s opened. We agree the timing with your site team.
Can you clean the ducts connected to the AHU?
Yes. Ventilation ductwork cleaning to TR19® Air is part of what we do. It’s often worth doing both at once, and we can quote for both.
Are you accredited?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We have been trading since 2009 and we’re fully insured.
Is a quote from photos possible?
Yes, for many jobs. Send wide shots, close-ups of any access panels and anything that worries you, and we typically come back within one working day. If photos are not enough, we’ll survey first.
Are you fully insured?
Yes, fully. CHAS and SafeContractor accreditation sit alongside it for clients who vet their contractors.
What does AHU cleaning cost?
Every site is different, so each gets its own fixed quote. To get one, call 0345 646 2711, or email photos with the site type, opening hours and a few pictures.
What affects the quote in Southwick
There’s no set price list, because sites vary so much. The quote depends on:
- What state the system is in
- Access, including roofs, risers and ceiling voids
- Working hours and out-of-hours timing
- How many systems or sites are involved
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.
What we need to know
Photos and a few facts are often enough to price the work. Useful things to send:
- Problems your staff have spotted
- A few general shots of the system
- The paperwork from the last visit, if you have it
- Where the site is and what kind of site it is
To help us quote: where the site is, what it is and its opening hours, a few photos and the last certificate or report, if there is one. Once you have those, phone us on 0345 646 2711 or send us an email.