West Sussex · Air handling unit cleaning
Air handling unit cleaning in Strettington, West Sussex
Air handling unit cleaning in Strettington, surveyed first and signed off with a written report and photos. Ask us for a fixed quote.
- Coils clogged with dust and debris
- Fan sections that haven’t been cleaned in years
- Blocked condensate drains and slimy trays
Questions from Strettington
Can ventilation in schools around Strettington be cleaned out of term?
Yes. The holidays are the usual time for school work. The FSA’s register shows about 4 schools and colleges with food registrations within roughly a mile and a half of Strettington. Send us your term dates when you call 0345 646 2711 or email us, and we will fit the work in.
Do you work in villages like Strettington?
Yes. Strettington is within the area we cover across London and the South East. Photos of the system and directions to the site help us plan the visit.
What happens to the waste?
We contain it and take it with us. We collect grease, debris and waste water as we go rather than letting it spread.
How long does it take to clean an air handling unit?
Expect it to take anything from half a day for one small unit to several shifts for a plant room full of them. Size, layout and how dirty it is decide the rest, and we will confirm the time when we quote.
Can you set up regular visits?
Yes. Send details of the systems and how they’re used and we’ll propose a schedule with a fixed quote.
Will you repair the fan or motor?
AHU cleaning is what we offer here, not mechanical repairs. Any faults we notice are recorded for your maintenance team to follow up.
Which accreditations do you hold?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We have been trading since 2009 and we are fully insured.
What do you do to protect the area?
Floors and surfaces near the work are sheeted before any work starts, and waste is contained as we go. Before we leave, we tidy up and clean down.
AHU cleaning in Strettington, done properly
Drain trays under cooling coils are meant to empty. When the drain blocks, water sits there and the tray turns slimy, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. The work covers filter sections, heating and cooling coils and supply and extract fans, and common reasons people get in touch are filters that are clogged or overdue and plant that needs cleaning after a refit.
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.
The sign-off is always in writing: a dated report with pictures of the work, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.

- Location
- Strettington (PO18)
- Wider area
- West Sussex
- Paperwork
- Written report with photos
- Price
- A fixed quote up front
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
What AHU cleaning cannot fix
We’d rather tell you now than book work that won’t help, so these are the things it won’t cover:
- Damaged coils beyond cleaning
- The supply and extract ducts, quoted separately
- Building management system faults
Not sure which it is? You can ring 0345 646 2711, or send details by email and we will tell you honestly.
Where we work
- Filter sections
- Drain trays
- Heating and cooling coils
- Internal panels
- Dampers and louvres
- Supply and extract fans
What staff can safely do
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
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 give you a fixed quote.
How the visit works
We work around your opening hours, not the other way round. 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 half a day to a full day per unit, with large plant planned over several shifts. We agree a date with you, plan the drive to Strettington and turn up when the site is quiet.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
How to prepare
- Clear loose items from the work area
- Make sure equipment near the work can be switched off and left to cool
- Have your last certificate or report to hand
Ask for a quote
Quotes are quick. Send a few details and photos, and we usually reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Related advice
Nearby places to Strettington
More services for Strettington
Aftercare tips
Results last longer with the right care. We suggest:
- Clear leaves and litter away from the intake
- Report stiff or damaged access doors
- Report water on the plant room floor
- Book the next check in line with the report
The ducts served by the unit may need attention too. Cleaning the unit and ducts together gives the best result, and we can quote for both.
Make sure access doors and panels on the unit open easily. If a section is hard to get into, it tends not to get checked.
When to call us in Strettington
It matters for two reasons: the unit supplies the air people breathe, and a dirty unit has to work harder. For anyone working, learning or staying in a building in Strettington, that is air they breathe for hours at a time.
Most sites get in touch after spotting one of these:
- Stale or musty smells from the ventilation
- Dirty coils holding back the airflow
- Air handling units never cleaned inside
- Intake sections clogged with outdoor debris
Healthcare ventilation, from large hospitals like Chichester Centre (about 1.9 miles south-west) to small clinics, depends on clean filters, coils and ducts.
Before booking anyone
- Whether a survey comes first
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether the whole system is included, or only the parts that are easy to reach
- Whether the price is fixed
What AHU cleaning looks like in Strettington
Going by the FSA’s register, there are about 4 schools, colleges and universities and about 11 care, childcare and hospital premises serving food within about 1.5 miles of central Strettington. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Strettington, about 52 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site. About 1.9 miles south-west of Strettington is Chichester Centre, the nearest hospital. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
If you manage a school such as Boxgrove CofE Primary School, ventilation cleaning is best booked for the holidays.
Strettington is about 2 miles north-east of Chichester, in West Sussex. Every kind of commercial site in Strettington, we can take on AHU cleaning. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. Strettington is one of 371 places in West Sussex where we work for commercial clients. You can also see our page for Portsmouth, roughly 15 miles from Strettington.
Here we cover the PO18 postcode area for AHU cleaning. If your site is just outside Strettington, we cover Westerton (1 mile west), Waterbeach (1 mile north), Maudlin (1 mile south-west), Boxgrove (1 mile east) and Tangmere (1 mile south-east). We also work in nearby towns such as Worthing (15 miles east), Bognor Regis (5 miles south-east), Selsey (9 miles south), Littlehampton (9 miles east), Emsworth (9 miles west) and Rustington (10 miles east).
What’s near Strettington
Around Strettington, our work takes us to kitchens and buildings near The Coach And Horses Public House and Westbourne House School and the streets around them. The closest station to Strettington is Chichester station, about 2.8 miles south-west. Nearby you will also find The Chichester City Museum (2.4 miles south-west) and Chichester Centre (1.9 miles south-west). The countryside around Strettington includes Levin Down and Kingley Vale National Nature Reserve.
Leave it or put it right?
Dirt left in an air handling unit doesn’t stay in the unit. It’s carried through the ductwork and out of the grilles, so cleaning the ducts without the unit only goes so far. A fault that closes a site in a village like Strettington affects everyone who depends on it.
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. The price is fixed before work begins.
Why book with us
- Fully insured
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Each visit written up, with photos
- Accredited under CHAS and SafeContractor, with ISO 9001
Take a look at our cost guide or our accreditations.
How we price AHU cleaning
We do not publish a price list, because no two systems are the same. What we look at:
- How easy every part is to reach
- Travel, parking and unloading
- What state the system is in
- How big the system is
You will not find a price list here, because the cost depends on the site in front of us. For a fixed quote, call us on 0345 646 2711 or drop us a line, and we will explain what it covers.
What we need to know
Photos let us diagnose from a distance. Try to include:
- Photos showing the whole system and its surroundings
- The site address and the type of premises
- Any symptoms, from odd noises to smells or leaks
- When the site is open and when it’s quiet
If you need AHU cleaning in Strettington, phone us on 0345 646 2711 or use the quote form. Tell us what kind of premises it is and when it’s open, and send pictures or your last report if you can. We usually send a fixed quote within one working day.