West Sussex · Air handling unit cleaning
Air handling unit cleaning in Chelwood Common, West Sussex
AHU cleaning across Chelwood Common and nearby, booked around your opening hours and signed off in writing with pictures.
- Condensate trays that won’t empty
- Air handling units due a clean after building work
- Dirty filters cutting the airflow
How the visit works
Your staff do not need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. A few pictures of the system help us make the most of a visit to a place like Chelwood Common.
- We agree a shutdown window that suits the building.
- We take before pictures of each section of the unit.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- We take after pictures and issue the certificate and report.
Before we arrive
- Have your last certificate or report to hand
- Let us know about permits to work or site inductions
- Arrange a key holder or contact on site
Get a fixed quote
The quickest way to a quote is to send pictures: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.
Related advice
AHU cleaning for kitchens and businesses in Chelwood Common
Heating and cooling coils trap dust that gets past the filters. A coated coil restricts airflow and makes the unit work harder. Coils are cleaned carefully, with methods chosen so the fins aren’t flattened. The work covers filter sections, internal panels and drain trays, and people most often call us about stale or musty smells from the ventilation and dirty coils holding back the airflow.
In a village or hamlet like Chelwood Common, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
For insurers and inspectors, the record counts. That is why every job is written up in a report with photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Where
- Chelwood Common (RH17)
- Wider area
- West Sussex
- Records
- Report and pictures after the visit
- Quotes
- A fixed quote up front
- When we work
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
Do you need AHU cleaning in Chelwood Common?
An overdue filter loads up with dirt, which cuts the airflow and can let air slip round the filter. Then the rest of the unit takes the load.
Common reasons sites call us are:
- Air handling units due a clean after building work
- Fan sections that haven’t been cleaned in years
- Rooms that smell stuffy when the system runs
- Drain trays holding standing water
School buildings such as Danehill Church of England Primary School are usually done in the holidays, so classrooms aren’t disturbed.
What your quote should include
- What happens if part of the system cannot be accessed
- What records you’ll receive afterwards
- Exactly which parts of the system are covered
- When the next visit should be, and why
What the work involves, part by part
Heating and cooling coils
Because cooling coils run wet, the dirt on them tends to cling. The coil and its drain tray are cleaned as one job.
Filters
Dirty filters cut airflow and let dirt slip past their frames. The filter section is cleaned so new or cleaned filters sit properly.
Towns and villages near Chelwood Common
Other services in Chelwood Common
Chelwood Common questions
Can you do AHU cleaning in Chelwood Common?
Yes. We work across London and the South East, and Chelwood Common is part of that. Just call 0345 646 2711, or send details by email with a few details of the site.
Do you work at weekends in Chelwood Common?
Yes, out-of-hours work is a big part of what we do. Your customers, staff or residents in Chelwood Common needn’t be disturbed. When you phone us on 0345 646 2711 or email us, mention when the site is quiet.
Are you fully insured?
Yes, fully. We also hold CHAS and SafeContractor for clients who vet their contractors.
What does AHU cleaning cost?
We don’t publish prices, because the cost depends on the job: the size of the system, its condition, access and when we can work. You get a fixed price before we start.
What’s TR19?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It covers how systems are inspected, cleaned and checked, and it takes a risk-based approach.
Do you survey before quoting?
Yes. Every job is surveyed first, either from photos and details you send or on a site visit. A fixed quote follows.
What should I send you?
Some pictures and a quick description of the system plus the address and your hours. If we need more, we’ll ask.
Can you look after several sites?
Yes. Send the list of sites and the work at each and we will quote them together.
What happens if it’s left?
A clean unit feeds cleaner air into the ductwork, so the ducts and grilles stay cleaner between cleans. It also means the next inspection has less to find. If the system at a site near Chelwood Common fails, there may be nowhere nearby to move to.
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
What you get with us
- Full insurance on every job
- Out-of-hours work and a 24/7 emergency line
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- A single point of contact for sites across the South East and London
Take a look at what affects the cost or how to check a contractor.
Looking after it afterwards
No system stays clean for ever, but care slows the build-up. A few tips:
- Report water on the plant room floor
- Look at the condensate drain whenever the unit is serviced
- Do not store bins or materials near the intake
- Store the TR19 paperwork where auditors can find it
The ducts served by the unit may need attention too. A clean unit feeding dirty ducts only solves half the problem, and we can survey 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.
For landlords and multi-site operators
Multi-site operators often want one contractor and one number. We work across London and the South East, so a run of sites can go into one programme and kept on a regular cycle.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.
Staff cleaning versus specialist work
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, they should report it rather than try to fix it. We can diagnose it and quote.
In-house cleaning and specialist cleaning do different jobs. 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.
Ventilation in Chelwood Common buildings
About 32 miles out from central London, Chelwood Common is part of the South East area we work across. The visit is fixed around your opening hours, not ours. For Chelwood Common, the closest hospital is Princess Royal Hospital, roughly 5.8 miles south-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
Hospitals such as Princess Royal Hospital (about 5.8 miles south-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near Chelwood Common are no different.
Chelwood Common is about 6 miles north-east of Haywards Heath, in West Sussex. We carry out AHU cleaning for businesses, landlords and public buildings in Chelwood Common and the rest of West Sussex. Our area takes in 371 places across West Sussex, from busy centres to quieter spots. For sites nearby, see our Brighton page, about 16 miles away.
Here we cover the RH17 postcode area for AHU cleaning. If you need AHU cleaning at premises on Baxters Lane, Tanyard Lane and Box's Lane or anywhere close by, we can help. Other places close to Chelwood Common include Chelwood Gate (1 mile north), Danehill (1 mile south-west), Birchgrove (1 mile north-west), Furner's Green (2 miles south) and Nutley (2 miles east). Within a short drive, we also cover Crawley (10 miles north-west), Horsham (15 miles west), Haywards Heath (6 miles south-west), Burgess Hill (9 miles south-west), East Grinstead (6 miles north) and Broadfield (10 miles west).
Near you in Chelwood Common
Nearby you will also find Waterbury Castle (2.3 miles west) and Heaven Farm Museum (1.6 miles south). Green spaces nearby include Brickfield Meadow.