West Sussex · Air handling unit cleaning
AHU Cleaning in Blackstone
Need AHU cleaning in Blackstone? We diagnose first, fix the price and book the work around your hours, then sign off with a report and pictures.
- Odours coming through the supply air
- Intake sections clogged with outdoor debris
- Units that have only ever had filter changes
AHU cleaning in Blackstone
We clean air handling units for buildings in Blackstone and across West Sussex, working to TR19® Air, in buildings such as offices, schools, healthcare sites and shops. The work is timed around when the system can be switched off, including evenings, nights and weekends. We’re often asked to deal with air handling units never cleaned inside and blocked condensate drains and slimy trays, on dampers and louvres, supply and extract fans and internal panels.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, where filters and drain trays get forgotten.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.

- Where
- Blackstone (BN5)
- Wider area
- West Sussex
- Records
- Photo report after each visit
- Price
- A fixed quote up front
- Hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
How the job changes from site to site
Drain trays
Drain trays can rust and leak over time. Their condition goes into the report with photos so you can decide on any repairs.
Internal casing and panels
Damaged internal linings or loose panels can shed material into the air. Anything like that is recorded with photos.
What we do, step by step
On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Anything that needs to be off for the work is switched off and left to cool before work begins, and floors and nearby surfaces are sheeted. The work itself takes one overnight shift for many single units, with bigger plant phased. Photos of the system and how to reach it help us plan a visit to Blackstone.
- We look at the unit and the plant area during the survey.
- 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.
Getting ready for the visit
- Clear loose items from the work area
- Make sure equipment near the work can be switched off and left to cool
- Let us know how we reach the system, including roofs, risers and plant rooms
Getting a quote
There’s no standard price list, because no two systems are the same. We look at your system first, from photos or on a visit, and then send you a fixed quote. To start, phone us on 0345 646 2711, or send details by email.
Advice
Fixed quotes for AHU cleaning in Blackstone
Before we fix a price, we need to know a few things. We look at:
- Whether we need access equipment or extra panels
- Site requirements such as sign-in and permits
- Where the site is and how we reach it
- The size of the system
What you pay depends on the size of the system, the condition it’s in and access to every part of it. You get a fixed price before work begins, so you know where you stand.
Asking for a quote
Photos let us diagnose from a distance. Try to include:
- The postcode and the type of business
- Detail shots of panels, filters and grilles
- Your opening hours and when the area is out of use
- Any symptoms, from odd noises to smells or leaks
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
In-house cleaning or a specialist?
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. Leave those to us.
Why it’s worth doing now in Blackstone
Facilities teams are often asked for evidence that the ventilation is looked after. Our certificate and photo report give you clear evidence, ready to show anyone who asks. Planning a trip to Blackstone ahead is easier for everyone than a rushed one.
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 explain each part.
Why us?
- Fully insured
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- CHAS and SafeContractor accredited, with ISO 9001
- Fixed quotes from a survey or photos
Your questions about AHU cleaning in Blackstone
Is Blackstone within the area you cover?
Yes. Blackstone is within the area we cover across London and the South East. Photos of the system and directions to the site help us plan the visit.
Do you cover Blackstone for AHU cleaning?
Yes, Blackstone is covered. A fixed quote usually follows within one working day of the survey details.
Do you do ventilation duct cleaning too?
Yes. Ventilation ductwork cleaning to TR19® Air is part of what we do. It’s often worth doing both at once, and we can survey both on the same visit.
Which kinds of sites do you work on?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
Do you work evenings or weekends?
Yes. Evening, overnight and weekend work is all possible, so the building keeps running in the day.
What about areas you can’t get to?
We never leave them off the paperwork. You’ll know exactly which parts weren’t reached and why, and we can quote to improve the access.
Do you survey before quoting?
Yes, always. We diagnose before we treat: the survey shows what needs doing and what access we need, and the quote is based on that.
What’s included in an AHU clean?
We clean the filter section, heating and cooling coils, drain trays, fan and internal casing. Filters are cleaned or changed as agreed in the quote.
Aftercare tips
After the visit, a few habits help the work last:
- Keep inspection doors on the unit in good order
- Store the TR19 paperwork where auditors can find it
- Change filters on schedule and log each change
- Book the next check in line with the report
If the ductwork hasn’t been cleaned, consider it next. Cleaning the unit and ducts together gives the best result, and we can survey both.
Keep the area around the intake clear. What’s near the intake ends up in the unit.
Honest limits
A few issues sit outside what this work can do:
- A system that is undersized for the building
- Damaged coils beyond cleaning
- Ductwork downstream of the unit, which is a separate clean
Not sure which it is? You can call us on 0345 646 2711, or send details by email and we’ll tell you honestly.
Parts of the system we cover
- Supply and extract fans
- Drain trays
- Filter sections
- Internal panels
- Dampers and louvres
- Heating and cooling coils
Places near Blackstone
Other services in Blackstone
Ventilation in Blackstone buildings
The Dene Hospital is the nearest hospital, about 3.8 miles north-east of Blackstone. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. We cover Blackstone, about 40 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.
The Dene Hospital, about 3.8 miles north-east, is the nearest hospital to Blackstone, and healthcare sites of every size need their supply air kept clean. For buildings in and around Blackstone, TR19® Air cleaning starts with an inspection.
Blackstone is about 5 miles west of Burgess Hill, in West Sussex. We carry out AHU cleaning for commercial premises of every kind in Blackstone and the rest of West Sussex. Blackstone is one of 371 places in West Sussex we cover for commercial clients. You can also see our page for Brighton, roughly 8 miles from Blackstone.
All of BN5 is within our area for AHU cleaning, from busy streets to back roads. We cover sites on Blackstone Lane and Blackstone Street and the roads around them. We also cover the places around Blackstone: Woodmancote (1 mile south-west), High Cross (1 mile north-east), Albourne (1 mile east), Albourne Street (1 mile east) and Albourne Green (1 mile east). Within a short drive, we also cover Crawley (13 miles north), Horsham (10 miles north), Worthing (10 miles south-west), Haywards Heath (8 miles north-east), Burgess Hill (5 miles east) and Littlehampton (15 miles south-west).
Landmarks near Blackstone
The closest station to Blackstone is Hassocks station, roughly 3.9 miles east of the centre. Well-known places in the area include The Dene Hospital (3.8 miles north-east) and The Budding Foundation Museum of Gardening (3.6 miles east). Not far away are Woods Mill and Wolstonbury Hill.