West Sussex · Air handling unit cleaning
AHU Cleaning in Barnham
AHU cleaning for commercial sites in Barnham and across West Sussex. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Air handling units due a clean after building work
- Filters that are clogged or overdue
- Debris and leaves in the fresh air intake
Barnham: your questions answered
Can you come to Barnham after we close?
Yes. We work evenings, overnight and at weekends. The site is handed back ready to open. Tell us your opening hours when you ask for a quote.
Can a school’s ventilation in Barnham be done out of term time?
Yes, out-of-term visits are normal for schools. Food Standards Agency records list about 9 schools, colleges and universities with registered kitchens within about a mile and a half of Barnham. You can phone us on 0345 646 2711 or send us an email with the dates the site is empty.
Do you have insurance?
Yes. Full insurance covers our work and have been trading since 2009.
Will you repair the fan or motor?
We clean the unit and flag faults rather than repair them, with the details in the report.
Which accreditations do you hold?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We’ve been trading since 2009 and we are fully insured.
What’s included in an AHU clean?
All the internal parts the air touches, from the intake and filters through the coils and fan to the outlet. The photo report shows each section before and after.
What types of premises do you cover?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, as well as food production and leisure sites.
What does AHU cleaning cost?
There’s no set price, as it depends on the job: how big it is, what state it’s in, how we reach it and the working hours. We fix the price before any work starts.
About our AHU cleaning in Barnham
We clean the parts of the unit where dirt and moisture gather: filters, coils, drain trays, fans and the internal panels. Every clean comes with a TR19® certificate and before and after photos in a report. The work covers heating and cooling coils, supply and extract fans and filter sections, and the jobs we see most are debris and leaves in the fresh air intake and air handling units never cleaned inside.
Somewhere as small as Barnham, ducted ventilation is typically limited to a school, a care home, a surgery or a converted business building, wherever there is one, but those that do need it inspected and cleaned like any other.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Place
- Barnham (PO22)
- Wider area
- West Sussex
- Paperwork
- Written report with photos
- Quote
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
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.
When your team notices a problem 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.
Part by part
Internal casing and panels
We open each section through its doors and close them securely when we’re done, and check every one is shut.
Drain trays
Standing water in a tray sits right where the air passes. We clean it and note if the slope or the drain needs attention.
How it works
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool before we start, and floors and nearby surfaces are sheeted. The work itself takes one overnight shift for many single units, with bigger plant phased. Somewhere like Barnham, lanes, gates and parking are worth mentioning in advance.
- The survey covers the unit, its access and how it can be shut down.
- 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.
How to prepare
- Let us know about permits to work or site inductions
- Tell us where we can park and unload
- Clear the space around the work
How to get a quote
There’s no standard price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To get going, phone us on 0345 646 2711 or use the quote form.
Related advice
Also near Barnham
Also in Barnham
What happens if it’s left?
A light clean now is simpler than a heavy one later. Leave it for years and dirt bakes onto coils and casings, especially where there’s been moisture. Planning a trip to Barnham ahead is easier for everyone than a rushed one.
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we’ll go through it with you.
Why book with us
- Ventilation hygiene specialists since 2009
- Full insurance on every job
- A single point of contact for sites across the South East and London
- Accredited under CHAS and SafeContractor, with ISO 9001
Take a look at how cleaning jobs are priced and our accreditations.
What affects the quote in Barnham
Your quote is based on your site. We take into account:
- The scale of the work
- Parking and loading at the site
- Access, including roofs, risers and ceiling voids
- One-off work versus a regular cycle
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, which can make the next visit longer. If you’re not sure what’s needed, give us a ring on 0345 646 2711, or send details by email and we will give you an honest view and a fixed quote.
Asking for a quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- The site address and the type of premises
- When the site is open and when it’s quiet
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Your last certificate, test record or report
For AHU cleaning in Barnham, call 0345 646 2711 or email us. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. We typically send a fixed quote within one working day.
What AHU cleaning looks like in Barnham
There are about 9 schools, colleges and universities and about 10 care, childcare and hospital premises on the FSA’s food hygiene register within roughly a mile and a half of the centre of Barnham. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. About 3.2 miles south-west of Barnham is Bognor Regis War Memorial Hospital, the nearest hospital. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. At about 52 miles from central London, Barnham sits well inside the area we cover. A survey and a fixed quote come first, then the visit at a time that suits you.
Healthcare buildings such as Bognor Regis War Memorial Hospital, about 3.2 miles south-west, depend on their ventilation; if you manage a surgery, clinic or care home near Barnham, yours matters too. For workplaces around Barnham station with mechanical ventilation, cleaning can be done in the evening or at weekends. Classrooms and halls at schools such as Barnham Primary School are easiest to work in when pupils are away.
Barnham is about 4 miles north-east of Bognor Regis, in West Sussex. We carry out AHU cleaning for businesses, landlords and public buildings in Barnham and the rest of West Sussex. Barnham is one of 371 towns, villages and districts in West Sussex we cover for AHU cleaning. Our Portsmouth page covers sites nearby, about 19 miles away.
All of PO22 is within our area for AHU cleaning, from the main roads to the quietest streets. That includes premises on Garden Crescent, Dollery Road and Goodacres and the roads around them. We also cover the places around Barnham: West Barnham (1 mile north-west), Walberton (1 mile north-east), Yapton (1 mile south-east), Eastergate (1 mile north-west) and Lidsey (1 mile south-west). Further out, we also cover Worthing (10 miles east), Bognor Regis (4 miles south-west), Chichester (6 miles west), Selsey (9 miles south-west), Littlehampton (5 miles east) and Lancing (14 miles east).
Local landmarks in Barnham
In Barnham, that means kitchens and buildings near The Murrell Arms and St Philip Howard Catholic High School and the streets around them. Barnham has its own railway station: Barnham station. Other landmarks nearby include Bognor Regis War Memorial Hospital (3.2 miles south-west) and Tote Copse Castle (2.5 miles west). Open spaces near Barnham include WWT Arundel.
What AHU cleaning cannot fix
AHU cleaning can’t fix everything, and we’d rather say so up front. It does not solve:
- Faulty motors, drives or bearings
- Problems with the unit’s controls or sensors
- Damaged coils beyond cleaning
Not sure which it is? You can give us a ring on 0345 646 2711, or send details by email and we will tell you honestly before you book.
What the work covers
- Dampers and louvres
- Filter sections
- Drain trays
- Internal panels
- Heating and cooling coils
- Supply and extract fans
Managing agents and facilities teams in Barnham
Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we’ll send a fixed quote.
When the building owner and the occupier are different, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.