West Sussex · Air handling unit cleaning
Air handling unit cleaning in Crawley, West Sussex
Need AHU cleaning in Crawley? We diagnose first, fix the price and book the work around your hours, then sign off with a report and pictures.
- Condensate trays that won’t empty
- Dirty filters cutting the airflow
- Plant that needs cleaning after a refit
AHU cleaning in Crawley: local notes
The FSA’s food hygiene register lists about 23 schools, colleges and universities, about 23 caring premises (care homes, nurseries and hospitals) and about 9 hotels and guest houses with registered kitchens or food service within 1.5 miles or so of the middle of Crawley. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. At about 27 miles from central London, Crawley sits well inside the area we cover. The visit is fixed around your opening hours, not ours. Crawley’s nearest hospital, Crawley Hospital, is about 0.5 miles north-west. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
Crawley Hospital, about 0.5 miles north-west, is the nearest hospital to Crawley, and healthcare sites of every size need their supply air kept clean. Workplaces around Crawley station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts. If you manage a school such as Three Bridges Junior School, ventilation cleaning is best booked for the holidays.
Crawley is about 27 miles south of London, in West Sussex. For AHU cleaning in and around Crawley, it’s easy to get a fixed quote: please give us a ring on 0345 646 2711 or drop us a line. Our area covers London and the South East, Crawley included. Our West Sussex coverage runs to 371 places, Crawley among them. Brighton is in our area too, around 19 miles away.
Our technicians cover all of RH10, RH11, RH12 and RH6 for AHU cleaning and the streets around it. That includes premises on Station Road, Queens Square and High Street and the roads around them. Being close to the A23 and A264, Crawley is easy for our technicians to reach at any hour. Nearby, we also carry out AHU cleaning in Southgate (1 mile south-west), Tilgate (1 mile south-east), West Green (1 mile north), Three Bridges (1 mile east) and Langley Green (1 mile north). Larger places within reach include Horsham (7 miles south-west), Haywards Heath (9 miles south-east), Burgess Hill (11 miles south), East Grinstead (8 miles east), Billingshurst (13 miles south-west) and Roffey (5 miles south-west). Crawley is among the bigger places we cover in West Sussex for AHU cleaning.
Local landmarks in Crawley
Typical jobs here are in premises near Tilgate Park, St Wilfrid's Catholic School and St Francis of Assisi Catholic Primary School and the streets around them. There’s a railway station in Crawley itself: Crawley station. Other landmarks nearby include Crawley Hospital (0.5 miles north-west) and County Mall (within half a mile north-east). Not far away are Tilgate Lake.
How we handle AHU cleaning in Crawley
Where a building in Crawley has had little more than filter changes, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full AHU clean takes in the whole unit. The work covers supply and extract fans, drain trays and filter sections, and the jobs we see most are filters that are clogged or overdue and fan sections that haven’t been cleaned in years.
A place as big as Crawley has offices, schools and hotels, many with ducted supply and extract ventilation. Whatever collects in a supply duct is carried into the rooms it serves, so TR19® Air cleaning follows an inspection.
The report is your system’s health record: a dated account with photos of everything we did. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal, ready for your insurer.
- Where
- Crawley (RH10, RH11, RH12, RH6)
- Region
- West Sussex
- Reporting
- Written report with photos
- Price
- A fixed price before any work starts
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Different parts, different methods
Internal casing and panels
We open each section through its doors and close them securely when we are done before the unit is handed back.
Fans and fan sections
Dust on a fan impeller adds weight and wear. A clean fan runs more smoothly.
What staff can safely do
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
Staff cleaning and specialist work are not the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Keeping the system healthy
To keep the system working properly between visits:
- Keep inspection doors on the unit in good order
- Report musty smells from the vents right away
- Note any water around the unit or leaks below it
- Book the next check in line with the report
Photos in the report cover the filters, coils, drain tray, fan and casing, along with anything we couldn’t reach. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Regular inspection under TR19® Air shows when cleaning is due instead of leaving it to guesswork.
Fixed quotes for AHU cleaning in Crawley
The price is fixed before any work begins. It’s based on:
- How big the system is
- Whether several sites go on one quote
- Where the site is and how we reach it
- Working hours and out-of-hours timing
What you pay depends on the size of the system, what state it’s in and access to every part of it. We give you a fixed price before we start, so there are no surprises.
What to send for a quote
Photos and a few facts are often enough to price the work. Useful things to send:
- The roof, plant room or outside wall the system runs to
- A few general shots of the system
- Close-ups of filters, grilles, hatches or access panels
- Any previous report or certificate
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Crawley: your questions answered
Is AHU cleaning available in Crawley?
Yes. Our area runs across London and the South East, Crawley included. A fixed quote normally follows within one working day of the survey details.
Can the work in Crawley be done at night or at weekends?
Yes, evening, overnight and weekend work is normal for us. That way a site in Crawley doesn’t have to lose a day’s trading. Your opening times are the first thing we ask for.
Which sectors do you work in?
Commercial premises of every kind: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.
How long will the unit be out of action?
Cleaning takes half a day to a full day per unit, with large plant planned over several shifts. Large plant can be split over several shifts, so ring 0345 646 2711, or email photos to talk it through.
Do you survey before quoting?
Yes, always. Diagnosis comes before treatment: the survey shows what needs doing and what access we need and the fixed quote is built on it.
Can you price the work without visiting?
Yes, where the pictures show enough. Otherwise, we book a survey at a time that suits the site, then a fixed quote.
What do you do to protect the area?
Floors and surfaces near the work are sheeted before any work starts, and anything we remove is contained. At the end, the area is cleaned down.
Do you do ventilation duct cleaning too?
Yes. We clean supply and extract ductwork to TR19® Air as well. Cleaning the unit and ducts together often makes sense, and we can survey both on the same visit.
What AHU cleaning can’t fix
In fairness, some problems need a different fix:
- Problems with the unit’s controls or sensors
- Ductwork downstream of the unit, which is a separate clean
- Mechanical faults with motors, belts or bearings
If in doubt, phone us on 0345 646 2711 or drop us a line and we will say what we think.
Parts of the system we cover
- Drain trays
- Internal panels
- Dampers and louvres
- Heating and cooling coils
- Supply and extract fans
- Filter sections
Places near Crawley
Also in Crawley
How the visit works
Your staff do not need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. A big building in Crawley doesn’t have to shut: the work can be spread across a few evenings or weekends.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- We take after photos and issue the certificate and report.
Before we arrive
- Let us know about parking and loading
- Make sure someone can let us in and lock up afterwards
- Allow time for equipment near the work to be turned off and cool down
Get a fixed quote
Want a quote for AHU cleaning? Please call 0345 646 2711 or send us an email and tell us about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.
Related advice
Managing agents and facilities teams in Crawley
When the building owner and the occupier are different, the lease normally sets out who maintains what. We are happy to deal with either side and send the paperwork to whoever needs it.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.