West Sussex · Air handling unit cleaning
Marehill AHU cleaning
AHU cleaning for Marehill and the surrounding area: diagnosis first, then a fixed quote, the work and a report with photos. Call for a fixed quote.
- Stale or musty smells from the ventilation
- Air handling units with blocked filters
- Blocked condensate drains and slimy trays
When something else is needed
A few issues sit outside what this work can do:
- Problems with the unit’s controls or sensors
- Coils that are corroded or leaking and need replacing
- Faulty motors, drives or bearings
Not sure which it is? You can ring 0345 646 2711 or send us an email and we’ll tell you honestly.
What the work covers
- Drain trays
- Internal panels
- Heating and cooling coils
- Supply and extract fans
- Filter sections
- Dampers and louvres
AHU cleaning for kitchens and businesses in Marehill
We clean air handling units for buildings in Marehill and across West Sussex, working to TR19® Air, in offices, schools, hospitals, care homes and retail. Units are cleaned when the site can spare them, often evenings, overnight or weekends. If you are dealing with fan sections that haven’t been cleaned in years and dust-coated heating and cooling coils, we can help.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
Good records are part of the job. Each visit is written up with photos, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Location
- Marehill (RH20)
- Wider area
- West Sussex
- Paperwork
- Written report with photos
- Quote
- Fixed quote, usually within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Nearby places to Marehill
Other services in Marehill
Staff cleaning versus specialist work
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, alongside our reports.
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that is where we come in.
The process
Our technicians bring everything the work needs, from protective sheeting to tools and access equipment. You only need to give us clear access and switch off what needs to be off. On site, the work takes one overnight shift for many single units, with bigger plant phased. Seeing the system in pictures first means the trip to Marehill can be planned properly.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Preparing for the visit
- Plan for cooking equipment or plant to be off before we arrive
- Make sure someone can let us in and lock up afterwards
- Find the previous report, if there is one
Get a fixed quote
Getting a quote does not take long. Send a few details and photos, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Advice
Different parts, different methods
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. The impeller, its housing and the fan chamber are cleaned.
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. We clean them with care so the fins are not damaged.
Questions from Marehill
Is AHU cleaning available in Marehill?
Yes. We work across London and the South East, and Marehill is part of that. A fixed quote typically follows within one working day of the survey details.
Can the work in Marehill be done at night or at weekends?
Yes. We work evenings, overnight and at weekends. That way a site in Marehill doesn’t have to lose a day’s trading. Let us know the hours you’re closed and we will book within them.
What do you do to protect the area?
By covering it before any work starts. The work is kept contained and leave the area clean.
What about areas you can’t get to?
They’re marked on the report. In ductwork, new access panels are often the answer, which we can install.
Is there a survey before the work?
Yes. Photos often do the job, while bigger or harder-to-see systems are surveyed on site.
What do you need from me for a quote?
The site address, the type of premises and your opening hours, along with a few photos and any previous report.
How often do AHUs need cleaning?
TR19® Air takes a risk-based approach, so it depends on inspection rather than a fixed interval. We recommend a next date in each report.
Can you quote from pictures?
Yes, if we can see what we need. Otherwise, we book a survey at a time that suits the site, then a fixed quote.
AHU cleaning in Marehill: local notes
Marehill, about 41 miles from central London, is within our usual area. Evening, overnight and weekend visits are all possible.
An inspection comes first for any ventilation job around Marehill, so the cleaning matches what’s there.
Marehill is about 10 miles north of Worthing, in West Sussex. Across the RH20 area, we cover AHU cleaning for commercial sites. Across West Sussex, we cover 371 places, Marehill among them. We also work in Brighton, about 17 miles from Marehill.
Every address in RH20 is covered for AHU cleaning, from busy streets to back roads. If you need AHU cleaning at premises on West Chiltington Road, Tudor Close and Kings Lane or anywhere close by, we can help. Neighbouring places we cover for AHU cleaning include Nutbourne (1 mile north-east), Broomershill (1 mile north-west), Wiggonholt (1 mile south), West Chiltington Common (1 mile south-east) and West Chiltington (1 mile east). Further out, we also cover Horsham (10 miles north-east), Worthing (10 miles south), Bognor Regis (14 miles south-west), Chichester (15 miles south-west), Burgess Hill (15 miles east) and Littlehampton (10 miles south).
Landmarks near Marehill
Typical jobs here are in premises near The Rising Sun Inn. The nearest railway station is Pulborough station, roughly 1.6 miles west of the centre. A little further out are Amberley Castle (4 miles south-west) and The Storrington And District Museum (2.9 miles south-east). For a walk, there’s Amberley Wildbrooks RSPB Reserve.
Do you need AHU cleaning in Marehill?
Cooling coils create condensation, and that water has to go somewhere. If the drain tray outlet blocks or the tray does not fall properly, water stands in it, and slime and smells soon follow.
These are the problems we see most often:
- Condensate trays that will not empty
- Plant that needs cleaning after a refit
- Debris and leaves in the fresh air intake
- Rooms that smell stuffy when the system runs
School buildings such as St Mary's Church of England Primary School are typically done in the holidays, so classrooms are not disturbed.
What to look for in a quote
- Whether a survey comes first
- How VAT is shown on the quote
- Whether they recommend a next date
- How areas they cannot reach will be recorded
What affects the cost of AHU cleaning
Before we fix a price, we need to know a few things. We check:
- How easy every part is to reach
- Any permits to work or inductions
- The condition we find in the survey
- When the work can happen, such as evenings, overnight or weekends
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are not sure what’s needed, phone us on 0345 646 2711 or drop us a line and we’ll give you an honest view and a fixed quote.
Asking for a quote
There’s no need for technical detail. It helps if you can send:
- Close-ups of filters, grilles, hatches or access panels
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- The times we could work without disrupting the site
- Where the site is and what kind of site it is
For a fixed quote, give us a ring on 0345 646 2711 or drop us a line 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. You will typically have a quote within one working day.
Landlords, agents and facilities managers
When the building owner and the occupier are different, the lease normally sets out who maintains what. We’re happy to deal with either side, and the report can go to both.
Records are where multi-site compliance often slips. Each visit ends with a dated report and photos, ready to show insurers, fire officers or EHOs.