East Sussex · Air handling unit cleaning
Air handling unit cleaning in Mark Cross, East Sussex
AHU cleaning for commercial sites in Mark Cross and across East Sussex. CHAS, SafeContractor and ISO 9001, and fully insured.
- Filters that are clogged or overdue
- Dirty coils holding back the airflow
- Odours coming through the supply air
Mark Cross: your questions answered
Can you work in Mark Cross outside opening hours?
Yes. We work evenings, overnight and at weekends. The site is handed back ready to open. Let us know the hours you are closed and we will book within them.
Will you come out to Mark Cross?
Yes. Mark Cross is within the area we cover across London and the South East. A survey first, from photos or a visit, means we arrive with the right kit.
Will we get paperwork for the AHU clean?
Yes, both a certificate and a report with photos. The report also suggests when the unit should next be inspected.
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. We work with hotels, schools, care homes, offices, retail and leisure sites.
Can you set up regular visits?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.
Is there a survey before the work?
Yes. For many sites, photos and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
What does TR19 mean?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It isn’t law, but it’s the benchmark.
What do you do to protect the area?
With sheeting and covers, before anything else happens. We keep the work contained and clean down when we finish.
AHU cleaning in Mark Cross, done properly
If the units serving a building in Mark Cross have only had filter changes for years, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full clean deals with all of it. We’re often asked to deal with units needing a clean before a new tenant or handover and blocked condensate drains and slimy trays, on internal panels, dampers and louvres and supply and extract fans.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
The paperwork matters as much as the work. You get a written report with pictures after every visit, 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 to hand when an insurer or inspector asks.
- Place
- Mark Cross (TN6)
- Region
- East Sussex
- Paperwork
- Written report with pictures
- Quote
- Fixed quote, typically within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
For landlords and multi-site operators
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.
We also work for facilities teams across offices, schools and healthcare across East Sussex. Larger estates can be phased building by building around the people who use them.
How the job changes from site to site
Drain trays
A tray that does not drain becomes a pool of stagnant water in the airstream. We clean it and report anything about the tray or drain that needs fixing.
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. We note any we find in the report.
The process
Your staff don’t 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. Afterwards, the area is left tidy and the written report follows. Somewhere as small as Mark Cross, the date and timings are agreed with you well before the day.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- We arrange the shutdown with your staff and sheet the area.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- Standing water and slime come out of the tray and the drain is checked.
- A TR19® certificate and photo report follow the clean.
How to prepare
- Name a contact who can let us in at the agreed time
- Let us know when the site is closed or quiet
- Tell us where we can park and unload
How to get a quote
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, the quote is fixed before any work is booked.
Related advice
Towns and villages near Mark Cross
Also in Mark Cross
What affects the quote in Mark Cross
The quote reflects the site in front of us. We consider:
- How many systems or sites are involved
- Working hours and out-of-hours timing
- The size of the system
- A single visit or a regular plan
The cost depends on how big the system is, what state it’s in and access to every part of it. You get a fixed price before any work starts, so you know where you stand.
What to send for a quote
Photos and a few facts are often enough to price the work. Useful things to send:
- How we’d reach plant on a roof or in a plant room
- The times we could work without disrupting the site
- Where the site is and what kind of site it is
- Any symptoms, from odd noises to smells or leaks
Here’s what helps us quote: the address, the type of site and when it’s open, photos of the system and any previous report or certificate. Then give us a ring on 0345 646 2711 or send us an email.
What your team can do, and what needs us
When your team notices a problem 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.
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
Ventilation in Mark Cross buildings
At about 34 miles from central London, Mark Cross sits well inside the area we cover. The visit is fixed around your opening hours, not ours. The nearest hospital to Mark Cross is Crowborough War Memorial Hospital, about 4.4 miles west. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
Healthcare buildings such as Crowborough War Memorial Hospital, about 4.4 miles west, depend on their ventilation; if you manage a surgery, clinic or care home near Mark Cross, yours matters too. If you manage a school such as Mark Cross Church of England Aided Primary School, ventilation cleaning is best booked for the holidays.
Mark Cross is about 4 miles east of Crowborough, in East Sussex. Sites in Mark Cross get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with photos. Across East Sussex, we cover 289 places, Mark Cross among them. For sites nearby, see our Maidstone page (18 miles or so).
We work across the TN6 postcode area for AHU cleaning and the streets around it. If your site is just outside Mark Cross, we cover Town Row (1 mile south-west), The Platt (2 miles north), Argos Hill (2 miles south-west), Rotherfield (2 miles south-west) and Rusher's Cross (2 miles south-east). Within a short drive, we also cover Hailsham (14 miles south), Crowborough (4 miles west), Uckfield (9 miles south-west), Heathfield (7 miles south), Upper Horsebridge (13 miles south) and Hellingly (12 miles south).
Landmarks near Mark Cross
Locally, jobs take us to businesses close to Eridge Park, The Lazy Fox pub and St Joseph Seminary, among other places. The nearest railway station is Wadhurst station, roughly 2.5 miles east. Nearby you will also find Crowborough War Memorial Hospital (4.4 miles west). For a walk, there’s Crowborough Country Park.
Aftercare tips
So the system stays in good health:
- Don’t ignore odours coming through the grilles
- Note any water around the unit or leaks below it
- Diary the inspection date recommended in the report
- Check the drain tray is emptying during routine visits
Once the clean is done, we send a TR19® certificate and a report with before and after photos. Keep both with the building’s maintenance records.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.
What a clean will not put right
Not every problem is solved by AHU cleaning, and we’ll tell you before work begins. It will not put right:
- A system that’s undersized for the building
- Dirty ducts beyond the unit itself
- Damaged coils beyond cleaning
If you are not sure, just ring 0345 646 2711 or drop us a line and we will give you a straight answer before you book.
Parts of the system we cover
- Heating and cooling coils
- Internal panels
- Filter sections
- Dampers and louvres
- Supply and extract fans
- Drain trays