West Sussex · Air handling unit cleaning
Handcross AHU cleaning
AHU cleaning for commercial sites in Handcross and across West Sussex. CHAS, SafeContractor and ISO 9001, and fully insured.
- Dust-coated heating and cooling coils
- Plant that needs cleaning after a refit
- Condensate trays that won’t empty
How we handle AHU cleaning in Handcross
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. We’re often asked to deal with dirty coils holding back the airflow and fan sections that haven’t been cleaned in years, across filter sections, drain trays and dampers and louvres.
For a building in or near Handcross, access is agreed in advance and the visit is planned around the journey.
Accreditations are easy to claim and worth checking. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Place
- Handcross (RH17)
- Wider area
- West Sussex
- Reporting
- Report and pictures after the visit
- Quotes
- A fixed price before we start
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
Do you need AHU cleaning in Handcross?
Whatever surrounds a building in Handcross, the air drawn into its AHU carries dust, pollen and debris. Most of it lands at the intake and the first stage of filters, and some travels further into the unit.
Any of these means the system needs a check-up:
- Fan sections that haven’t been cleaned in years
- Units that have only ever had filter changes
- Dirty filters cutting the airflow
- Dirty coils holding back the airflow
Healthcare buildings such as Crawley Hospital, about 4.3 miles north, depend on their ventilation; if you manage a surgery, clinic or care home near Handcross, yours matters too.
Before you book anyone
- Whether the whole system is included, or only the parts that are easy to reach
- What happens if part of the system can’t be accessed
- How they set the interval to the next visit
- If the quote is a fixed price or an estimate
Staff cleaning versus specialist work
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Different parts, different methods
Filters
What’s on the filters is a good clue to what’s further in. We photograph them for the report.
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. Cleaning restores the open path through the fins.
Why it’s worth doing now in Handcross
Leave an AHU uncleaned and the dirt does not stay put. It moves on into the ductwork and out into the rooms, so cleaning the ducts without the unit only goes so far. Somewhere as small as Handcross, losing a kitchen or building to a fault is felt by everyone who uses it.
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will explain each part.
Why book with us
- Full insurance on every job
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Fixed quotes, usually within one working day
- Photo reports with every job
Read what affects the cost and our accreditations.
How it works
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. The visit itself takes anything from half a day for one small unit to several shifts for a plant room full of them. Visits to a village like Handcross are booked in advance, at a time that suits whoever runs the site.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Mention any locked doors, roof access or ceiling voids
- Make sure someone can let us in and lock up afterwards
- Tell us the best time to work, such as after service or at a weekend
How to get a quote
There’s no standard price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, ring 0345 646 2711 or use the quote form.
Advice
FAQs for Handcross
Do you work in villages like Handcross?
Yes, we work in villages as well as towns, and Handcross is covered. The journey is planned ahead, so a few details about the route help.
Can ventilation in schools around Handcross be cleaned out of term?
Yes. Half-terms and the summer break are the natural time for school work. The FSA’s register shows about 2 schools and colleges with food registrations within roughly a mile and a half of Handcross. Tell us your holiday dates and we will book the visit for when the site is empty.
Can you come out in an emergency?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line, and we will advise on what to do next.
How long will the unit be out of action?
Expect it to take a single shift for a typical unit, longer for large or heavily soiled ones. The unit’s size and condition make the biggest difference, and the quote will give you a clear idea.
Do you give a certificate after the clean?
Yes. Every clean comes with a TR19® certificate and a photo report. They’re worth keeping with the plant records.
What happens if you cannot reach some of it?
Anything we cannot reach goes on the report, with pictures where possible, and we tell you what would make it reachable, for example new access panels.
How much notice should we give?
For planned work, earlier is better, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
What do you need from me for a quote?
Only a few details: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. After that, simply call 0345 646 2711, or email photos.
What affects the cost of AHU cleaning
Your quote is based on your site. We take into account:
- What state the system is in
- The number of sites or systems
- The times the site is available
- How easy every part is to reach
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Asking for a quote
We can often survey from photos. The most useful are:
- Where the site is and what kind of site it is
- How we’d reach plant on a roof or in a plant room
- Wide pictures of the system and the area around it
- Any symptoms, from odd noises to smells or leaks
To get a fixed quote, ring 0345 646 2711 or use the quote form and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. We normally come back within one working day.
Also near Handcross
More services for Handcross
Handcross buildings and their air
We cover Handcross, about 31 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. About 4.3 miles north of Handcross is Crawley Hospital, the nearest hospital. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
For schools like Handcross Primary School, the holidays are the usual time to inspect and clean ventilation.
Handcross is about 4 miles south of Crawley, in West Sussex. We provide AHU cleaning for businesses, landlords and public buildings in Handcross and the rest of West Sussex. 371 places in West Sussex are on our list, from busy centres to quieter spots. Brighton is in our area too, around 16 miles away.
Our technicians cover all of RH17 for AHU cleaning and the streets around it. If you need AHU cleaning at premises on High Street, London Road and Windmill Platt or a nearby road, we can help. If your site is just outside Handcross, we cover Slaugham (1 mile south), Plummers Plain (2 miles south-west), Colgate (3 miles north-west), Broadfield (3 miles north) and Lower Beeding (3 miles south-west). We also work in nearby towns such as Crawley (4 miles north), Horsham (5 miles west), Haywards Heath (6 miles south-east), Burgess Hill (7 miles south-east), East Grinstead (10 miles north-east) and Shoreham-by-Sea (15 miles south).
Local landmarks in Handcross
In Handcross, that means kitchens and buildings near The Royal Oak Public House and Handcross Park School. The closest station to Handcross is Balcombe station, roughly 2.8 miles east of the centre. Other landmarks nearby include Crawley Hospital (4.3 miles north). Open spaces near Handcross include Tilgate Lake and Blunts Wood and Paiges Meadow.
Aftercare tips
Looking after the system between visits is straightforward, and it makes the next visit easier:
- Keep the certificate and photo report with the plant records
- Note any water around the unit or leaks below it
- Keep the area around the fresh air intake clear
- Report stiff or damaged access doors
When we’ve closed the unit up, it can be restarted with your site team. Keep an eye on the condensate drain over the next few days to confirm water is draining away.
Keep the unit’s doors and panels in working order. If a section is hard to get into, it tends not to get checked.