Kent · Air handling unit cleaning
Frant AHU cleaning
Professional AHU cleaning in and around Frant, timed so the site keeps working and signed off in writing with photos.
- Dirty coils holding back the airflow
- Dust built up on fan impellers
- Condensate trays that won’t empty
AHU cleaning in Frant, done properly
An air handling unit is the heart of a building’s ventilation: it draws air in, filters it, heats or cools it and pushes it round the ductwork. Whatever builds up inside it travels with that air, which is why we clean the unit itself, not just the ducts. If you’re dealing with units that have only ever had filter changes and blocked condensate drains and slimy trays, we can put it right, from supply and extract fans, internal panels and dampers and louvres onwards.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
For insurers and inspectors, the record counts. So every job comes with a written report and pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.

- Place
- Frant (TN3)
- Region
- Kent
- Reporting
- Report and photos after the visit
- Quotes
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Ventilation in Frant buildings
Frant is about 32 miles from central London, well within the area we cover across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site. The nearest hospital to Frant is Tunbridge Wells Homeopathic Hospital, about 2.5 miles north. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Hospitals such as Tunbridge Wells Homeopathic Hospital (about 2.5 miles north) show how much a building can rely on clean ventilation, and smaller healthcare sites near Frant are no different.
Frant is about 3 miles south of Royal Tunbridge Wells, in Kent. We carry out AHU cleaning for businesses, landlords and public buildings in Frant and the rest of Kent. Across Kent, we cover 922 places, Frant among them. Our Maidstone page covers sites nearby, about 16 miles away.
Postcode districts we cover here for AHU cleaning: TN3. If you need AHU cleaning at premises on High Street, The Green and Warren Ridge or anywhere close by, we can help. Close by, we work in The Platt (1 mile south), Eridge Green (2 miles west), Mark Cross (2 miles south), Town Row (4 miles south-west) and Tidebrook (4 miles south). We also work in nearby towns such as Sevenoaks (13 miles north), Royal Tunbridge Wells (3 miles north), Tonbridge (7 miles north), Kings Hill (14 miles north-east), Paddock Wood (8 miles north-east) and Southborough (4 miles north).
What’s near Frant
Locally, jobs take us to businesses close to The George Public House and Eridge Park, among other places. The nearest railway station is Frant station, roughly 1.2 miles north-east of the centre. A little further out are The Corn Exchange (2.1 miles north) and The Amelia (2.6 miles north). Green spaces nearby include Broadwater Warren RSPB Reserve.
Nearby places to Frant
What else we do in Frant
Managing agents and facilities teams in Frant
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.
Records are where multi-site compliance often slips. Every visit ends with a dated report and photos, so you can show an insurer or inspector what was done at each site.
When to call us in Frant
Most units live out of sight on roofs, in plant rooms or in ceiling voids and are rarely seen by anyone but maintenance staff. It’s easy for a long time to go by without anyone opening the panels.
Look out for these warning signs:
- Dirty filters cutting the airflow
- Dirty fans and fan housings
- Odours coming through the supply air
- Units that have only ever had filter changes
Classrooms and halls at schools such as Frant Church of England Primary School are easiest to work in when pupils are away.
Comparing quotes
- Exactly which parts of the system are covered
- Whether a survey comes first
- Whether the price is fixed
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
How the job changes from site to site
Fans and fan sections
Before the fan is touched, the unit is shut down and made safe with your site team.
Drain trays
The drain tray collects water from the cooling coil. We clear standing water, clean out slime and check the outlet is draining.
Aftercare tips
Results last longer with the right care. We suggest:
- Store the TR19 paperwork where auditors can find it
- Make sure condensate is draining away
- Report musty smells from the vents straight away
- Note any water around the unit or leaks below it
We recommend when the unit should next be inspected or cleaned, based on what we found. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Check drain trays and condensate drains during routine maintenance. Catching a slow drain early stops standing water building up.
Staff cleaning versus specialist work
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. That’s our job.
How the visit works
There are three stages on the day: set-up, the treatment itself and the sign-off. Getting ready means protecting surfaces and switching off what needs to be off, while signing off means the written report and pictures. The middle part takes longest, and that takes anything from half a day for one small unit to several shifts for a plant room full of them. Visits to a village like Frant are booked in advance, at a time that suits whoever runs the site.
- We survey the unit from pictures or on site and agree what’s included.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- We clean out the drain tray and make sure it drains.
- You get a TR19® certificate and a photo report.
Before we arrive
- Arrange a key holder or contact on site
- Clear loose items from the work area
- Agree a time when the area can be out of use
Get a fixed quote
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and we can price many jobs without a visit.
Related advice
Frant: your questions answered
Do you offer AHU cleaning in Frant?
Yes. We work across London and the South East, and Frant is part of that. A fixed quote usually follows within one working day of the survey details.
Can you work in Frant outside opening hours?
Yes, evening, overnight and weekend work is normal for us. That way a site in Frant doesn’t have to lose a day’s trading. Tell us your opening hours when you ask for a quote.
Do you have insurance?
Yes. We carry full insurance, and we have been trading since 2009.
What’s TR19?
A BESA specification, with two parts that matter most here: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It isn’t legislation, but it’s the standard people check against.
How do you keep the site clean during the work?
Floors and surfaces near the work are sheeted before work begins, and anything we remove is contained. Before we leave, we tidy up and clean down.
Can we book visits on a schedule?
Yes. Send details of the systems and how they’re used and we’ll propose a schedule with a fixed quote.
What do you clean inside the unit?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. What happens to the filters is agreed when we quote.
Can one contract cover all our sites?
Yes. Send the list of sites and the work at each and we’ll quote them together.
What affects the cost of AHU cleaning
Before we fix a price, we need to know a few things. We look at:
- The scale of the work
- When the work can happen, such as evenings, overnight or weekends
- The condition of the system
- Whether it’s a one-off visit or part of a schedule
The cost depends on the size of the system, what state it’s in and how easy it is to reach. We give you a fixed price before we start, so there are no surprises.
Asking for a quote
We can often survey from photos. Try to include:
- Your opening hours and when the area is out of use
- The paperwork from the last visit, if you have it
- Photos showing the whole system and its surroundings
- How we’d reach plant on a roof or in a plant room
Here’s what helps us quote: the address, the type of site and when it’s open, a few pictures and the last certificate or report, if there is one. Once you have those, phone us on 0345 646 2711 or use the quote form.