West Sussex · Air handling unit cleaning
AHU Cleaning in West Ashling
AHU cleaning in West Ashling from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Plant that needs cleaning after a refit
- Rooms that smell stuffy when the system runs
- Blocked condensate drains and slimy trays
AHU cleaning in West Ashling, done properly
Think of an AHU clean as a full check-up for the ventilation. Every section is opened, cleaned and photographed, so the report shows exactly what was done. Common call-outs are for dirty fans and fan housings and dust-coated heating and cooling coils, across supply and extract fans, internal panels and drain trays.
For a building in or near West Ashling, access is agreed in advance and the visit is planned around the journey.
It’s worth checking any contractor’s accreditations. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Place
- West Ashling (PO18)
- Wider area
- West Sussex
- Paperwork
- Written report with photos
- Quote
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Updated
- 30 October 2026

Aftercare tips
Here’s the after-treatment advice, in brief:
- Keep inspection doors on the unit in good order
- Plan the next inspection before the last report gets filed away
- Change filters on schedule and log each change
- Make sure condensate is draining away
Stick to the filter change schedule, because good filters protect everything downstream. Record each change in the maintenance log.
Regular filter changes are the best protection an AHU has. Overloaded filters let more dirt through to the coils and fan.
Also near West Ashling
Other services in West Ashling
Honest limits
Not every problem is solved by AHU cleaning, and we will tell you before work begins. It does not solve:
- A system that is undersized for the building
- Controls and BMS settings that run the unit
- Ductwork downstream of the unit, which is a separate clean
If you’re not sure, just call 0345 646 2711, or email photos and we’ll give you a straight answer.
Where we work
- Heating and cooling coils
- Drain trays
- Internal panels
- Filter sections
- Supply and extract fans
- Dampers and louvres
What staff can safely do
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
What affects the cost of AHU cleaning
Your quote is based on your site. We consider:
- What state the system is in
- How big the system is
- The times the site is available
- Site rules, permits and inductions
Several systems or sites on one quote often makes better use of the time. Mention every system or site you need covered, and you’ll get one fixed quote.
Helping us quote
What to send for a quote:
- Detail shots of panels, filters and grilles
- Any previous report or certificate
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- The roof, plant room or outside wall the system runs to
To get a fixed quote, call us on 0345 646 2711, or send details by email and tell us the type of site, your opening hours and roughly what the system looks like. A few photos and your last certificate or report help a lot. You will normally have a quote within one working day.
Ventilation in West Ashling buildings
There are about 3 hospitals, care homes and childcare premises on the FSA’s food hygiene register in and around West Ashling, up to about a mile and a half out. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. We cover West Ashling, about 55 miles from central London, as part of our work across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you. The nearest hospital to West Ashling is Chichester Centre, about 3.6 miles east. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
Hospitals such as Chichester Centre (about 3.6 miles east) show how much a building can rely on clean ventilation, and smaller healthcare sites near West Ashling are no different.
West Ashling is about 3 miles north-west of Chichester, in West Sussex. Across the PO18 area, we cover AHU cleaning for commercial sites. 371 places in West Sussex are on our list, from busy centres to quieter spots. There’s also a page for Portsmouth, roughly 11 miles from West Ashling.
Work in PO18 is surveyed, quoted and booked the same way as anywhere else. Whether your site is on Heather Close, Ashling Close and Portal Close or a nearby road, our technicians can take on the work. We also cover the places around West Ashling: East Ashling (1 mile east), Funtington (1 mile north-west), Broadbridge (1 mile south), Hambrook (1 mile west) and West Stoke (1 mile north-east). Larger places within reach include Bognor Regis (9 miles south-east), Chichester (3 miles south-east), Selsey (9 miles south), Littlehampton (14 miles east), Emsworth (4 miles west) and Rustington (15 miles east).
Local landmarks in West Ashling
Around West Ashling, our work takes us to kitchens and buildings near The Horse And Groom Public House and the streets around them. For rail, the closest station is Bosham station, about 1.2 miles south of the centre. A little further out are Chichester Centre (3.6 miles east) and Chichester Castle (3.5 miles south-east). Open spaces near West Ashling include Kingley Vale National Nature Reserve and Stoke Down.
FAQs for West Ashling
Will you come out to West Ashling?
Yes, West Ashling is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.
Can the work in West Ashling be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. The work in West Ashling can fit around your hours. Let us know the hours you’re closed and we will book within them.
Do you do ventilation duct cleaning too?
Yes, supply and extract ducts, grilles and diffusers. The survey shows whether the ducts need cleaning now.
What does AHU cleaning cost?
Size, condition, access and working hours all affect the cost. Call for a fixed quote and we will normally reply within one working day.
How much notice should we give?
It depends on the time you need and how big the job is. Tell us your preferred dates when you ask for a quote, and for anything urgent, ring our 24/7 emergency line.
Can you set up regular visits?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, to suit the system and how it’s used.
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.
Will you repair the fan or motor?
We clean the unit and flag faults rather than repair them, with photos where it helps.
Leave it or put it right?
Standing water in a drain tray does not clear itself. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Clearing it now is a much smaller job. It’s worth booking a check, because nobody sees inside a duct day to day.
Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we will explain each part.
Why us?
- One number for every site across the South East and London
- Photo reports with every job
- In business since 2009
- Out-of-hours work and a 24/7 emergency line
How the visit works
At the end of the visit, someone from your team can look over the work with us. Anything we couldn’t reach or that needs attention is pointed out there and then, and it goes on the report too. The visit takes a single shift for a typical unit, longer for large or heavily soiled ones. If the van will struggle with a lane or gateway near West Ashling, let us know and we’ll plan around it.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before photos 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.
- After photos are taken and the certificate issued.
Getting ready for the visit
- Mention any parking or loading restrictions
- Have your last certificate or report to hand
- Make sure someone can let us in and lock up afterwards
Get a fixed quote
To help us quote: the address, the type of site and when it’s open, photos of the system and the last certificate or report, if there is one. Once you have those, ring 0345 646 2711 or use the quote form.
Advice
What we’re called out for in West Ashling
Planned maintenance often covers belts, motors and filters but not cleaning. So a unit can be well maintained and still dirty.
What we are most often called out for:
- Rooms that smell stuffy when the system runs
- Drain trays holding standing water
- Debris and leaves in the fresh air intake
- Units that have only ever had filter changes
If you manage a school such as Funtington Primary School, ventilation cleaning is best booked for the holidays.
Comparing quotes
- Whether the figure could change on the day
- Whether the quote is based on a survey or photos
- How VAT is shown on the quote
- Whether a written report and photos are included