West Sussex · Air handling unit cleaning
Air handling unit cleaning in Patching, West Sussex
Air handling unit cleaning in Patching, surveyed first and signed off with a written report and pictures. Call for a fixed quote.
- Dirty filters cutting the airflow
- Dust-coated heating and cooling coils
- Plant that has been serviced but not cleaned
Different parts, different methods
Heating and cooling coils
Cooling coils stay damp in use, so dirt on them can turn sticky. We clean the coil and the tray beneath it together.
Rooftop and plant room units
Units outside are exposed to weather and windblown debris. The intake section gets particular attention.
AHU cleaning for kitchens and businesses in Patching
Our AHU cleans for sites in Patching cover the parts that collect dirt: the filter section, heating and cooling coils, drain trays, fan and casing. You get a TR19® certificate and a photo report showing the unit before and after. The work covers dampers and louvres, internal panels and drain trays, and the jobs we see most are dust-coated heating and cooling coils and units that have only ever had filter changes.
Work in a small place like Patching starts with agreeing access and timings, and the ventilation is inspected, cleaned and recorded the same as anywhere.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Location
- Patching (BN13)
- Region
- West Sussex
- Records
- Photo report after each visit
- Quotes
- A fixed price before any work starts
- When we work
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
More services for Patching
Common problems we fix in Patching
Dirt in an AHU matters in two ways: air quality, since the unit feeds occupied rooms, and performance, since dirt makes it strain. For the people using the building every day, that’s the air they breathe for hours on end.
Clients usually contact us after spotting something like this:
- Dirty coils holding back the airflow
- Air handling units due a clean after building work
- Dirty fans and fan housings
- Air handling units never cleaned inside
For schools like Clapham and Patching CofE Primary School, the holidays are the usual time to inspect and clean ventilation.
Questions to ask before you book
- Which accreditations they hold, and whether you can check them
- If they look at the system before pricing
- How they set the interval to the next visit
- Proof of insurance
For landlords and multi-site operators
We work for landlords, managing agents and facilities managers as well as the people running the site. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we’re happy to quote for all of it.
Facilities teams in offices, schools and healthcare sites book us too across West Sussex. Work can be phased by floor, building or site to keep disruption down.
Keeping the system healthy
After the visit, a few habits help the work last:
- Keep the area around the fresh air intake clear
- Keep inspection doors on the unit in good order
- Store the TR19 paperwork where auditors can find it
- Plan the next inspection before the last report gets filed away
Keep filter changes on schedule between cleans, because good filters protect everything downstream. Log every change so it’s easy to see when the next is due.
Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.
Patching: your questions answered
Can you work in Patching outside opening hours?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Patching needn’t be disturbed. Let us know the hours you’re closed and we’ll book within them.
Can you get to a site in Patching?
Yes. Patching 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 ventilation duct cleaning too?
Yes, the ductwork, grilles and diffusers the unit serves. We’ll tell you after the survey whether the ducts need it.
What’s TR19?
BESA’s ventilation hygiene specification in two main parts: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It is not legislation, but it’s the standard people check against.
Is a quote from pictures possible?
Yes, if we can see what we need. If not, a site survey comes first, then a fixed quote.
How much does AHU cleaning cost?
The cost depends on the size of the system, its condition, access and timing. Call for a fixed quote and we’ll normally reply within one working day.
What do you need from me for a quote?
A short description and a few photos plus the address and your hours. If we need more, we will ask.
Can you fix a faulty AHU?
Our AHU work is cleaning rather than mechanical repair. If we spot a fault, we note it in the report so your maintenance contractor can deal with it.
When it’s something else
A few issues sit outside what this work can do:
- Breakdowns that need a mechanical engineer
- Coils that are corroded or leaking and need replacing
- The supply and extract ducts, quoted separately
If in doubt, call 0345 646 2711 or send us an email and we will say what we think before booking.
What the work covers
- Supply and extract fans
- Dampers and louvres
- Drain trays
- Filter sections
- Heating and cooling coils
- Internal panels
Why act early in Patching
Dirty coils and fans make the unit strain to move the same air. That means more wear on the motor and rooms that feel less fresh, and a planned clean is far less disruptive than a breakdown. Somewhere as small as Patching, losing a kitchen or building to a fault is felt by everyone who uses it.
Combining work into one visit or one programme can make for a more efficient booking. Mention every system or site you need covered and we will price it together.
Why us?
- Out-of-hours work and a 24/7 emergency line
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Ventilation hygiene specialists since 2009
- One contact for all your sites in London and the South East
Take a look at our cost guide or our accreditations and certificates.
How it works
Everything the job needs comes with us, from protective sheeting to tools and access equipment. All we need from you is clear access and the right equipment switched off. On site, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. A few photos of the system help us make the most of a visit to a place like Patching.
- We survey the unit from pictures or on site and agree what’s included.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Drain trays are cleared and cleaned and the outlet checked.
- You get a TR19® certificate and a photo report.
How to prepare
- Tell us about site rules, permits or sign-in
- Name a contact who can let us in at the agreed time
- Agree a time when the area can be out of use
How to get a quote
To get a fixed quote, give us a ring on 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. We typically come back within one working day.
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AHU cleaning around Patching
Food Standards Agency records list about 4 schools, colleges and universities and about 4 hospitals, care homes and childcare premises registered as food businesses in Patching and the streets around it, up to about 1.5 miles out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. About 48 miles out from central London, Patching is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you. Zachary Merton Hospital is the nearest hospital, about 3.4 miles south-west of Patching. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
Healthcare buildings such as Zachary Merton Hospital, about 3.4 miles south-west, depend on their ventilation; if you manage a surgery, clinic or care home near Patching, yours matters too.
Patching is about 3 miles north-west of Worthing, in West Sussex. Sites in Patching get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with photos. Our area takes in 371 places across West Sussex, from busy centres to quieter spots. There’s also a page for Brighton, roughly 14 miles from Patching.
Here we cover the BN13 postcode area for AHU cleaning. You’ll find streets such as The Street and Coldharbour Lane, and we cover them all for AHU cleaning. Nearby, we also carry out AHU cleaning in Clapham (1 mile south-east), Hammerpot (2 miles west), Cote (2 miles east), Angmering (2 miles south-west) and Hangleton (2 miles south). Further out, we also cover Worthing (3 miles south-east), Bognor Regis (11 miles west), Chichester (14 miles west), Littlehampton (4 miles south-west), Shoreham-by-Sea (8 miles east) and Lancing (6 miles east).
Around Patching
In Patching, that means kitchens and buildings near The Fox pub, The Angmering School and Clapham Wood and the streets around them. The closest station to Patching is Goring-By-Sea station, about 2.3 miles south-east. A little further out are Museum of Sussex Folklore (3.1 miles south-east) and Old Castle (3.1 miles south-east). Not far away are WWT Arundel and Highdown Hill.