West Sussex · Air handling unit cleaning
Air handling unit cleaning in East Dean, West Sussex
Need AHU cleaning in East Dean? We survey first, send you a fixed quote and work around your opening hours, finishing with a written report and photos.
- Dirty filters cutting the airflow
- Odours coming through the supply air
- Condensate trays that will not empty
AHU cleaning in East Dean, done properly
The fan pushes every bit of air in the system, 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. If you have coils clogged with dust and debris and debris and leaves in the fresh air intake, we can put it right, from drain trays, supply and extract fans and dampers and louvres onwards.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, where filters and drain trays get forgotten.
It’s worth checking any contractor’s accreditations. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.

- Where
- East Dean (PO18)
- Wider area
- West Sussex
- Paperwork
- Photo report after every visit
- Quotes
- A fixed price before any work starts
- Working hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Checked
- 30 October 2026
What AHU cleaning cannot fix
A few issues sit outside what this work can do:
- Building management system faults
- Ductwork downstream of the unit, which is a separate clean
- Faulty motors, drives or bearings
If in doubt, call 0345 646 2711, or email photos and we’ll say what we think.
Where we work
- Filter sections
- Supply and extract fans
- Drain trays
- Dampers and louvres
- Heating and cooling coils
- Internal panels
AHU cleaning in East Dean: local notes
For East Dean, the closest hospital is Chichester Centre, roughly 5 miles south-west. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. East Dean, about 49 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.
Around East Dean, as anywhere, ventilation cleaning begins with an inspection.
East Dean is about 6 miles north-east of Chichester, in West Sussex. We carry out AHU cleaning for businesses, landlords and public buildings in East Dean and the rest of West Sussex. 371 places in West Sussex are on our list, large and small. Portsmouth is in our area too, about 17 miles from East Dean.
We cover every part of the PO18 postcode area for AHU cleaning and the roads nearby. You will find streets such as Main Road, Chapel Row and Charlton Road, all of which we cover for AHU cleaning. If your site is just outside East Dean, we cover Charlton (1 mile west), Singleton (2 miles west), West Dean (3 miles west), Heyshott (3 miles north) and Cocking (3 miles north-west). Further out, we also cover Worthing (15 miles south-east), Bognor Regis (8 miles south), Chichester (6 miles south-west), Selsey (13 miles south), Littlehampton (11 miles south-east) and Emsworth (10 miles south-west).
Local landmarks in East Dean
Typical jobs here are in premises near The Star And Garter Public House. A little further out are Weald and Downland Gridshell (1.8 miles west) and Chichester Centre (5 miles south-west). The countryside around East Dean includes Graffham Common and Levin Down.
What happens on the day
When we arrive, we check the system against the survey or the pictures you sent. Anything unexpected is raised with you before we go further. After that, the work takes one overnight shift for many single units, with bigger plant phased. Photos of the system and how to reach it help us plan a visit to East Dean.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- The unit is shut down with your site team and the area protected.
- 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.
Preparing for the visit
- Arrange a key holder or contact on site
- Let us know about parking and loading
- Let us know how we reach the system, including roofs, risers and plant rooms
How to get a quote
For AHU cleaning in East Dean, give us a ring on 0345 646 2711 or drop us a line. Let us know the site type and the opening hours, and send photos or your last report if you can. A fixed quote typically follows within one working day.
Advice
Why it’s worth doing now in East Dean
Standing water in a drain tray does not clear itself. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Clearing it now is a much smaller job. A planned visit to East Dean is easier to arrange than an emergency callout.
When the work has to happen, how we reach it and how big the site is all affect the cost. We take each of them into account, and the price is fixed before any work starts.
Why East Dean businesses choose us
- One contact for all your sites in London and the South East
- Fixed quotes from a survey or photos
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Ventilation hygiene specialists since 2009
Read what affects the cost and our accreditations.
Aftercare tips
To keep the system working properly between visits:
- Book the next check in line with the report
- Do not store bins or materials near the intake
- Report water on the plant room floor
- Make sure the unit’s access doors open easily
You receive a TR19® certificate and a photo report after the clean. They belong in the plant or maintenance log.
Regular inspection under TR19® Air shows when cleaning is due instead of leaving it to guesswork.
Also in East Dean
Managing agents and facilities teams in East Dean
Facilities teams in offices, schools and healthcare sites book us too in East Dean and across West Sussex. Work can be phased by floor, building or site to keep disruption down.
Multi-site operators often want one contractor and one number. We work across London and the South East, so visits at different addresses can be planned together and kept on a regular cycle.
What your team can do, and what needs us
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you can’t see still need a specialist at the right interval.
Your questions about AHU cleaning in East Dean
Do you cover smaller places like East Dean?
Yes. Villages and rural sites across the South East are part of our work, East Dean included. Photos of the system and directions to the site help us plan the visit.
Do you work at weekends in East Dean?
Yes, out-of-hours work is a big part of what we do. Your customers, staff or residents in East Dean needn’t be disturbed. Tell us your opening hours when you ask for a quote.
Do you repair air handling units?
We clean the unit and flag faults rather than repair them, with photos where it helps.
Which accreditations do you hold?
We are 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.
What do you do to protect the area?
With sheeting and covers, before anything else happens. The work is kept contained and leave the area clean.
What happens if you can’t reach some of it?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
Is there a report after cleaning?
Yes, a TR19® certificate and a photo report. The report also suggests when the unit should next be inspected.
How often should an air handling unit be cleaned?
There’s no single answer; it comes down to the building and the unit. Inspection tells you when cleaning is needed, and we will suggest an interval after the first clean.
What we are called out for in East Dean
Mechanical servicing keeps a unit running, but it does not always include cleaning the inside. That means a unit can tick every service box and still be carrying years of dirt.
Most sites get in touch when they notice one of these:
- Filters that are clogged or overdue
- Intake sections clogged with outdoor debris
- Plant that has been serviced but not cleaned
- Drain trays holding standing water
Healthcare ventilation, from large hospitals like Chichester Centre (about 5 miles south-west) to small clinics, depends on clean filters, coils and ducts.
Comparing quotes
- Which accreditations they hold, and whether you can check them
- How they set the interval to the next visit
- What’s included in the scope, part by part
- What paperwork you get at the end