West Sussex · Air handling unit cleaning
Air handling unit cleaning in Hardham, West Sussex
AHU cleaning in Hardham from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Condensate trays that will not empty
- Odours coming through the supply air
- Units that have only ever had filter changes
AHU cleaning in Hardham
We clean the parts of the unit where dirt and moisture gather: 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 filter sections, drain trays and internal panels, and the jobs we see most are dirty fans and fan housings and units needing a clean before a new tenant or handover.
In a village or hamlet like Hardham, few buildings have mechanical ventilation, but those that do need it inspected and cleaned like any other.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. On top of that, we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Place
- Hardham (RH20)
- Region
- West Sussex
- Paperwork
- Written report with pictures
- Quote
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Common questions in Hardham
Will you come out to Hardham?
Yes. Hardham is within the area we cover across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Hardham in your area for AHU cleaning?
Yes, we work in Hardham and the places around it. Get in touch with the details and we’ll arrange a survey.
Is there a survey before the work?
Yes, always. Diagnosis comes before treatment: the survey shows what needs doing and what access we need, and the quote is based on that.
What information do you need?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and the last report help too. After that, simply ring 0345 646 2711 or send us an email.
Can you clean the ducts connected to the AHU?
Yes. We clean supply and extract ductwork to TR19® Air as well. Cleaning the unit and ducts together often makes sense, and we can quote for both.
What do you do with what you remove?
Anything we remove is contained as we work and taken away with us, from grease and debris to used cleaning water. We do not leave it behind.
Are you fully insured?
Yes. We carry full insurance and have been trading since 2009.
How much notice should we give?
It depends on the time you need and how big the job is. Mention your preferred dates with your enquiry, and if it’s an emergency, call us any time.
More services for Hardham
What the work involves, part by part
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.
Filters
Every AHU relies on its filters to catch dust before it reaches the coils. We check them, and clean or change them as agreed in the quote, and the housing around them is cleaned too.
Leave it or put it right?
Standing water in a drain tray does not clear itself. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Dealing with it early keeps the clean straightforward. Somewhere as small as Hardham, losing a kitchen or building to a fault is felt by everyone who uses it.
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we’ll go through it with you.
Why book with us
- A written report with photos after every visit
- Out-of-hours work and a 24/7 emergency line
- Accredited under CHAS and SafeContractor, with ISO 9001
- Trading since 2009
Take a look at what affects the cost or our accreditations and certificates.
Do you need AHU cleaning in Hardham?
Most units live out of sight on roofs, in plant rooms or in ceiling voids, so they’re easy to forget about. Months can pass without anyone looking inside.
Clients usually contact us after spotting one of these:
- Coils clogged with dust and debris
- Condensate trays that will not empty
- Dust built up on fan impellers
- Plant that has been serviced but not cleaned
School buildings such as St James' CofE Primary School are typically done in the holidays, so classrooms aren’t disturbed.
Questions to ask before you book
- What hours they’ll be on site
- What records you will receive afterwards
- Whether they’re fully insured
- Whether VAT is included
What a clean won’t put right
AHU cleaning cannot fix everything, and we will tell you before we start. It does not solve:
- Damaged coils beyond cleaning
- Problems with the unit’s controls or sensors
- Dirty ducts beyond the unit itself
If in doubt, ring 0345 646 2711 or email us and we will say what we think.
Parts of the system we cover
- Dampers and louvres
- Supply and extract fans
- Internal panels
- Filter sections
- Heating and cooling coils
- Drain trays
What we do, step by step
We start by comparing what we find with the survey or your photos. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes from a few hours for a compact unit to a day or more for a large one. If the van will struggle with a lane or gateway near Hardham, let us know and we’ll plan around it.
- 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.
- The unit is closed up and handed back, with a report to follow.
Preparing for the visit
- Mention any locked doors, roof access or ceiling voids
- Let us know about parking and loading
- Make sure someone can let us in and lock up afterwards
How to get a quote
Getting a quote doesn’t take long. Call or email with a few details and you will usually have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
Related advice
Ventilation in Hardham buildings
Hardham, about 42 miles from central London, is within our usual area. Visits are booked around your hours, evenings and weekends included.
For workplaces around Pulborough station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Hardham is about 10 miles north of Littlehampton, in West Sussex. Across the RH20 area, we can take on AHU cleaning. We cover 371 places across West Sussex, large and small. For sites nearby, see our Brighton page (19 miles or so).
Work in RH20 is surveyed, quoted and booked the same way as anywhere else. We also cover the places around Hardham: Coldwaltham (1 mile south-west), Pulborough (1 mile north-east), Watersfield (2 miles south-west), Fittleworth (2 miles north-west) and Lower Horncroft (2 miles west). Larger places within reach include Horsham (12 miles north-east), Worthing (10 miles south-east), Bognor Regis (13 miles south-west), Chichester (13 miles south-west), Littlehampton (10 miles south) and Shoreham-by-Sea (14 miles south-east).
Near you in Hardham
Locally, jobs take us to businesses close to The White Hart Public House. Hardham’s nearest station is Pulborough station, roughly 0.7 miles north-east of the centre. Well-known places in the area include Amberley Museum (3.6 miles south) and Coates Castle (2.8 miles west). Green spaces nearby include Bignor Hill and Amberley Wildbrooks RSPB Reserve.
Fixed quotes for AHU cleaning in Hardham
Every site gets its own quote. This is what makes a difference:
- Parking and loading at the site
- Site rules, permits and inductions
- The times the site is available
- What state the system is in
The price reflects the work, not guesswork. That’s why every job is surveyed first, and the price is agreed before we start.
What to send for a quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- The paperwork from the last visit, if you have it
- Detail shots of panels, filters and grilles
- The roof, plant room or outside wall the system runs to
- Your opening hours and when the area is out of use
Every quote begins with a look at the system, from your photos and details or, where that is not enough, a survey on site. Then we send a fixed price, before work begins.
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 to a regular schedule.
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we’ll come back with a fixed quote.