Kent · Air handling unit cleaning
Air handling unit cleaning in Key's Green, Kent
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for commercial sites in Key's Green and across Kent. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Units that have only ever had filter changes
- Filters that are clogged or overdue
- Leaves and litter drawn into the unit
How we handle AHU cleaning in Key's Green
A cooling coil drips condensate into a tray that should drain away. If the outlet blocks, standing water and slime build up, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. Typical jobs include fan sections that haven’t been cleaned in years and dirty filters cutting the airflow, across drain trays, heating and cooling coils and internal panels.
For a building in or near Key's Green, access is agreed in advance and the visit is planned around the journey.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Location
- Key's Green (TN12)
- Wider area
- Kent
- Reporting
- Report and photos after the visit
- Quote
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Checked
- 30 October 2026
When to call us in Key's Green
No filter stops everything. The fine dust that passes the filters lands on the coils, the fan and the internal panels, a little more each month.
Most sites get in touch after spotting something like this:
- Air handling units due a clean after building work
- Condensate trays that will not empty
- Dirty coils holding back the airflow
- Air handling units never cleaned inside
Healthcare ventilation, from large hospitals like Pembury Hospital (about 2.4 miles north-west) to small clinics, depends on clean filters, coils and ducts.
Questions to ask before you book
- Proof of accreditation you can verify
- Whether the figure could change on the day
- Whether they’re fully insured
- Whether the quote is based on a survey or pictures
Also near Key's Green
More services for Key's Green
AHU cleaning around Key's Green
At about 32 miles from central London, Key's Green sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site. Pembury Hospital is the nearest hospital, about 2.4 miles north-west of Key's Green. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
For buildings in and around Key's Green, TR19® Air cleaning starts with an inspection.
Key's Green is about 4 miles east of Royal Tunbridge Wells, in Kent. We carry out AHU cleaning for commercial premises of every kind in Key's Green and the rest of Kent. Across Kent, we cover 922 places, Key's Green among them. For sites nearby, see our Maidstone page (12 miles or so).
Every address in TN12 is covered for AHU cleaning, from busy streets to back roads. Whether your site is on Cryals Road and Beech Lane or a nearby road, our technicians can take on the work. Neighbouring places we cover for AHU cleaning include Lamberhurst Quarter (1 mile south), Petteridge (1 mile north-east), Pembury (2 miles north-west), Matfield (2 miles north-east) and Brenchley (2 miles north-east). Further out, we also cover Maidstone (12 miles north-east), Sevenoaks (13 miles north-west), Royal Tunbridge Wells (4 miles west), Tonbridge (6 miles north-west), Kings Hill (10 miles north) and Foley Park (13 miles north-east).
Around Key's Green
In Key's Green, that means kitchens and buildings near Brenchley Wood and The Blue Boys Inn and the streets around them. The nearest railway station is Frant station, roughly 3.5 miles south-west. Well-known places in the area include Pembury Hospital (2.4 miles north-west) and Old Scotney Castle (3.7 miles south-east). The countryside around Key's Green includes Bewl Water and Tudeley Woods RSPB reserve.
Managing agents and facilities teams in Key's Green
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.
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Each site gets its own report and photos, so each one has its own record.
What we do, step by step
A visit follows the same order every time: protect the area, isolate whatever needs isolating, carry out the AHU cleaning, tidy up and hand over the paperwork. On site, the work takes one overnight shift for many single units, with bigger plant phased. The timing of a visit to Key's Green is set by you, and the travel is our side of the planning.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- After photos are taken and the certificate issued.
Before we arrive
- Dig out any earlier paperwork for the system
- Move anything stored near the system
- Make sure someone can let us in and lock up afterwards
Ask for a quote
The quickest way to a quote is to send photos: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and we can price many jobs without a visit.
Advice
What staff can safely do
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 will take a look and send you a fixed quote.
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, alongside our reports.
Between visits
No system stays clean for ever, but care slows the build-up. A few tips:
- File each AHU report in the maintenance log
- Clear leaves and litter away from the intake
- Change filters on schedule and log each change
- Report musty smells from the vents straight away
Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air instead of leaving it to guesswork.
Common questions in Key's Green
Can a school’s ventilation in Key's Green be done out of term time?
Yes. Half-terms and the summer break are the natural time for school work. There are about 2 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Key's Green. Tell us your holiday dates and we’ll book the visit for when the site is empty.
Do you work at weekends in Key's Green?
Yes, evening, overnight and weekend work is normal for us. That way a site in Key's Green doesn’t have to lose a day’s trading. Let us know the hours you’re closed and we will book within them.
What happens if you can’t reach some of it?
We record them on the report, with a note of where it is, and we tell you what would make it reachable, such as extra access panels in ductwork.
Do you offer maintenance contracts?
Yes, of course. Tell us what you have and how it’s used, and we’ll suggest a schedule and quote for it.
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.
How much does AHU cleaning cost in Key's Green?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. You get a fixed price before any work starts.
Is Key's Green in your area?
Yes. We work across Greater London, Surrey, Kent, Sussex, Hampshire, the Isle of Wight, Berkshire, Buckinghamshire, Oxfordshire, Hertfordshire and Essex, Key's Green included.
How long does it take to clean an air handling unit?
As a guide, it takes from a few hours for a compact unit to a day or more for a large one. We plan the shutdown around that, including evenings or weekends.
What AHU cleaning cannot fix
We’d rather tell you now than book work that won’t help, so these are the things it won’t cover:
- Dirty ducts beyond the unit itself
- Breakdowns that need a mechanical engineer
- Damaged coils beyond cleaning
If you are not sure, just ring 0345 646 2711 or drop us a line and we’ll give you a straight answer.
What we work on in Key's Green
- Internal panels
- Filter sections
- Dampers and louvres
- Drain trays
- Heating and cooling coils
- Supply and extract fans
Why act early in Key's Green
Facilities teams are often asked for evidence that the ventilation is looked after. Our certificate and photo report give you clear evidence, for audits, tenants or your own peace of mind. With notice, the visit to Key's Green can be fitted around your bookings and events.
What you pay depends on how big the system is, the condition it’s in and access to every part of it. You get a fixed price before any work starts, so there are no surprises.
What you get with us
- Fully insured
- A fixed price before any work starts
- Out-of-hours work and a 24/7 emergency line
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
Read how cleaning jobs are priced and how to check a contractor.