West Sussex · Air handling unit cleaning
Air handling unit cleaning in Donnington, West Sussex
Professional AHU cleaning in and around Donnington, booked around your opening hours and signed off in writing with pictures.
- Dust-coated heating and cooling coils
- Air handling units never cleaned inside
- Air handling units with blocked filters
AHU cleaning around Donnington
There are about 5 schools, colleges and universities and about 5 care, childcare and hospital premises on the FSA’s food hygiene register within about 1.5 miles of central Donnington. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. St Richard's Hospital is the nearest hospital, about 2.5 miles north of Donnington. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. Donnington, about 56 miles from central London, is within our usual area. Visits are booked around your hours, evenings and weekends included.
If you manage a school such as Chichester High School For Girls, ventilation cleaning is best booked for the holidays.
Donnington is about 2 miles south of Chichester, in West Sussex. Donnington gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with pictures. We cover 371 places across West Sussex, large and small. We also work in Portsmouth, around 13 miles away.
We cover every part of PO20 for AHU cleaning and the streets around it. Donnington sits on or near the B2201, which makes travel easy for AHU cleaning. We also cover the places around Donnington: Hunston (1 mile east), North Mundham (1 mile east), Runcton (2 miles east), Chichester (2 miles north) and Portfield (2 miles north-east). We also work in nearby towns such as Bognor Regis (5 miles east), Selsey (5 miles south), Littlehampton (11 miles east), Emsworth (7 miles north-west), Rustington (12 miles east) and Angmering (14 miles east).
Landmarks near Donnington
Around Donnington, our work takes us to kitchens and buildings near The Blacksmith's Arms Public House, among other places. The nearest railway station is Chichester station, about 1.6 miles north. Well-known places in the area include Chichester Cathedral Treasury (1.8 miles north) and St Richard's Hospital (2.5 miles north). Green spaces nearby include Nutborne Marshes.
About our AHU cleaning in Donnington
An air handling unit is the heart of a building’s ventilation: it draws air in, filters it, heats or cools it and pushes it round the ductwork. Whatever builds up inside it travels with that air, which is why we clean the unit itself, not just the ducts. Common call-outs are for plant that needs cleaning after a refit and condensate trays that won’t empty, on dampers and louvres, heating and cooling coils and internal panels.
For a building in or near Donnington, access is agreed in advance and the visit is planned around the journey.
We’re CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. We’re also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Where
- Donnington (PO20)
- Region
- West Sussex
- Paperwork
- Report and pictures after the visit
- Price
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Your questions about AHU cleaning in Donnington
Can ventilation in schools around Donnington be cleaned out of term?
Yes, out-of-term visits are normal for schools. Food Standards Agency records list about 5 schools, colleges and universities with registered kitchens within about a mile and a half of Donnington. You can give us a ring on 0345 646 2711 or email us with the dates the site is empty.
Can you come to Donnington after we close?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Donnington needn’t be disturbed. Just call 0345 646 2711 or email us with your opening times and we’ll plan around them.
Which sectors do you work in?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, plus food production and leisure sites.
Will we get paperwork for the AHU clean?
Yes. Every clean comes with a TR19® certificate and a photo report. Keep them in the maintenance log.
Can you set up regular visits?
Yes. Scheduled maintenance plans are part of what we do, set at the interval the system needs. The report from each visit recommends the next date.
What do you clean inside the unit?
Everything inside the unit that air passes over, from intake to discharge, including coils, fan and drain trays. The photo report shows each section before and after.
Do you look at the system first?
Yes. We always survey first, either from photos and details you send or on a site visit. A fixed quote follows.
How do you keep the site clean during the work?
We start with protection: floor sheeting and covers over nearby surfaces and equipment. We tidy up and take our waste away before we leave.
Between visits
Think of this as the after-treatment advice, in brief:
- Check the drain tray is emptying during routine visits
- Don’t store bins or materials near the intake
- File each AHU report in the maintenance log
- Don’t ignore odours coming through the grilles
The report suggests a date for the next inspection or clean, taking into account how dirty it was. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Make the drain tray part of every maintenance visit. A drain that’s cleared early never gets to the slime stage.
What affects the cost of AHU cleaning
The diagnosis comes before the price. The main factors are:
- Where the site is and how we reach it
- Access, including roofs, risers and ceiling voids
- Working hours and out-of-hours timing
- The size of the system
When the work has to happen, how we reach it and how big the site is all affect the cost. Each of those is built into the quote, and the price is fixed before we start.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- When the site is open and when it’s quiet
- Close-ups of filters, grilles, hatches or access panels
- Any symptoms, from odd noises to smells or leaks
- The paperwork from the last visit, if you have it
For a fixed quote, ring 0345 646 2711 or send us an email and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. You’ll usually have a quote within one working day.
Why it’s worth doing now in Donnington
A light clean now is simpler than a heavy one later. Years of build-up make the job longer and harder, particularly where damp has made it stick. In a small place like Donnington, a system that fails can take a site out of use.
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’ll go through it with you.
Why us?
- Every visit written up, with pictures
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Survey first, then a fixed quote
- In business since 2009
Read what affects the cost or our accreditations.
How the visit works
We’re used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. The visit itself takes from a few hours for a compact unit to a day or more for a large one. Pictures of the system and its access let us plan the work in Donnington before we set off.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Getting ready for the visit
- Make sure equipment near the work can be switched off and left to cool
- Agree a time when the area can be out of use
- Let us know about parking and loading
Ask for a quote
To help us quote: where the site is, what it is and its opening hours, photos of the system and the last certificate or report, if there is one. Then give us a ring on 0345 646 2711 or drop us a line.
Advice
When it’s something else
In fairness, there are a few things this work won’t fix:
- Airflow problems caused by the system’s design
- Coils that are corroded or leaking and need replacing
- Dirty ducts beyond the unit itself
If you’re not sure, just call us on 0345 646 2711 or drop us a line and we’ll give you a straight answer.
Where we work
- Supply and extract fans
- Dampers and louvres
- Internal panels
- Filter sections
- Heating and cooling coils
- Drain trays
Common problems we fix in Donnington
Whatever surrounds a building in Donnington, the air drawn into its AHU carries dust, pollen and debris. The intake section and first filters take the brunt, and some travels further into the unit.
If you notice any of these, it’s worth a diagnosis:
- Units needing a clean before a new tenant or handover
- Dirty coils holding back the airflow
- Dirty filters cutting the airflow
- Intake sections clogged with outdoor debris
Healthcare ventilation, from large hospitals like St Richard's Hospital (about 2.5 miles north) to small clinics, depends on clean filters, coils and ducts.
Before you book anyone
- Whether the figure could change on the day
- Whether the quote shows VAT
- When they can work, and whether that is outside your opening hours
- If they look at the system before pricing
Landlords, agents and facilities managers
If you look after several sites, we can plan visits across the whole estate and price them together. Every building has its own written report, so records stay tidy.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.