West Sussex · Air handling unit cleaning
AHU Cleaning in Walberton
One call covers AHU cleaning in Walberton: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Leaves and litter drawn into the unit
- Condensate trays that won’t empty
- Coils clogged with dust and debris
Staff cleaning versus specialist work
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 send you a fixed quote.
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. That part needs specialist access and equipment.
AHU cleaning in Walberton, done properly
All the building’s air passes through the fan, so dirt on the impeller and housing gets spread around. We clean the fan section along with the rest of the unit, with the unit switched off and made safe first. Common call-outs are for rooms that smell stuffy when the system runs and units that have only ever had filter changes, across supply and extract fans, dampers and louvres and drain trays.
For a building in or near Walberton, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
The sign-off is always in writing: a dated report with photos of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Place
- Walberton (BN18)
- Region
- West Sussex
- Reporting
- Report and photos after the visit
- Quotes
- A fixed quote up front
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What affects the cost of AHU cleaning
Your quote is based on your site. We take into account:
- The size of the system
- What state the system is in
- Whether we need access equipment or extra panels
- Travel, parking and unloading
One small site or a whole estate, we price it on the same basis: what needs doing, how we get to it and when. You’ll have a fixed price before we start.
What to send for a quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Close-ups of filters, grilles, hatches or access panels
- The postcode and the type of business
- The roof, plant room or outside wall the system runs to
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and many jobs can be priced from that alone.
Different parts, different methods
Rooftop and plant room units
Smaller units in ceiling voids are part of the work as well. We protect the area below before opening them.
Filters
Dirty filters cut airflow and let dirt slip past their frames. The filter section is cleaned so new or cleaned filters sit properly.
Also near Walberton
Also in Walberton
Questions from Walberton
Will you come out to Walberton?
Yes. Walberton is within the area we cover across London and the South East. A survey first, from photos or a visit, means we arrive with the right kit.
Do you do school ventilation cleaning in Walberton in the summer holidays?
Yes. The holidays are the usual time for school work. Food Standards Agency records list about 6 schools, colleges and universities with registered kitchens within about a mile and a half of Walberton. Booking early in the term gives the best choice of holiday dates.
What accreditations do you have?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We have been trading since 2009 and we are fully insured.
What information do you need?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and the last report help too. Then ring 0345 646 2711 or email us.
How often do AHUs need cleaning?
It depends on the unit, the filters and how the building is used. Inspection tells you when cleaning is needed, and the report recommends a next date.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line, for problems that can’t wait. Ring any time and tell us what’s happened.
How much does AHU cleaning cost?
Size, condition, access and working hours all affect the cost. Call for a fixed quote, typically ready within one working day.
Can you clean without disrupting the building?
Yes. We time the work to fit the building’s hours. Healthcare and care settings are planned with staff.
Landlords, agents and facilities managers
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we are happy to quote for all of it.
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements, and we will send a fixed quote.
What AHU cleaning looks like in Walberton
There are about 6 schools, colleges and universities and about 9 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register within roughly a mile and a half of the centre of Walberton. Busy, occupied buildings like these are where clean supply air matters most. Walberton, about 51 miles from central London, is within our usual area. A survey and a fixed quote come first, then the visit at a time that suits you. The nearest hospital to Walberton is Arundel and District Hospital, about 2.5 miles east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Arundel and District Hospital, about 2.5 miles east, is the nearest hospital to Walberton, and healthcare sites of every size need their supply air kept clean.
Walberton is about 5 miles north-west of Littlehampton, in West Sussex. If you need AHU cleaning in Walberton, please give us a ring on 0345 646 2711 or drop us a line for a fixed quote. We work across South East England and London, Walberton included. Walberton is one of 371 places in West Sussex we cover for commercial clients. You can also see our page for Portsmouth, about 20 miles away.
We work across BN18 for AHU cleaning and the roads nearby. That includes premises on The Street, Maple Road and Prime Close and nearby roads. If your site is just outside Walberton, we cover Avisford (1 mile north-east), Binsted (1 mile east), Slindon Common (1 mile north), West Barnham (1 mile south-west) and Barnham (1 mile south-west). Within a short drive, we also cover Worthing (10 miles east), Bognor Regis (5 miles south-west), Chichester (7 miles west), Selsey (11 miles south-west), Littlehampton (5 miles south-east) and Shoreham-by-Sea (15 miles east).
Landmarks near Walberton
Locally, jobs take us to businesses close to St Philip Howard Catholic High School. The nearest railway station is Barnham station, about 1.3 miles south-west of the centre. Nearby you’ll also find Arundel and District Hospital (2.5 miles east) and Arundel Castle (3 miles east). For a walk, there’s WWT Arundel and Bignor Hill.
How it works
The first job on site is protection: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. The work on site takes one overnight shift for many single units, with bigger plant phased, and the area is cleaned down before we leave. If the van will struggle with a lane or gateway near Walberton, let us know and we’ll plan around it.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- We take after photos and issue the certificate and report.
Before we arrive
- Arrange a key holder or contact on site
- Clear loose items from the work area
- Mention any locked doors, roof access or ceiling voids
Getting a quote
If you need AHU cleaning in Walberton, call us on 0345 646 2711 or drop us a line. Tell us what kind of premises it is and when it’s open, and send photos or your last report if you can. A fixed quote normally follows within one working day.
Related advice
What happens if it’s left?
Standing water in a drain tray doesn’t clear itself. 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. Systems in rural buildings are often out of sight and out of mind.
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Why choose Duct Doctor in Walberton
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Survey first, then a fixed quote
- CHAS, SafeContractor and ISO 9001
- A written report with photos after every visit
See what affects the cost and our accreditations.
Do you need AHU cleaning in Walberton?
Filters that are not changed or cleaned on time clog up, cutting airflow and sometimes letting dirty air bypass them altogether. Then the rest of the unit takes the load.
The symptoms we’re asked about most include:
- Units that have only ever had filter changes
- Plant that needs cleaning after a refit
- Filters that are clogged or overdue
- Dust-coated heating and cooling coils
For schools like Walberton and Binsted CofE Primary School, the holidays are the usual time to inspect and clean ventilation.
What to look for in a quote
- What paperwork you get at the end
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether the figure could change on the day
- Whether they’re fully insured