Kent · Air handling unit cleaning
AHU Cleaning in Aylesford
One call covers air handling unit cleaning in Aylesford: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Blocked condensate drains and slimy trays
- Dirty coils holding back the airflow
- Filters that are clogged or overdue
Do you need AHU cleaning in Aylesford?
Most units live out of sight on roofs, in plant rooms or in ceiling voids, so they’re easy to forget about. It’s easy for a long time to go by without anyone opening the panels.
Keep an eye out for any of the following:
- Units needing a clean before a new tenant or handover
- Odours coming through the supply air
- Units that have only ever had filter changes
- Fan sections that haven’t been cleaned in years
If you manage shops or offices close to Aylesford station, a TR19® Air inspection shows whether the ductwork needs cleaning.
Questions to ask before you book
- What paperwork you get at the end
- Whether they’re fully insured
- What hours they’ll be on site
- If the quote is a fixed price or an estimate
About our AHU cleaning in Aylesford
The fan pushes every bit of air in the system, so dust on its blades and housing ends up in the airstream. Fan, housing and the surrounding panels are cleaned as part of the job, once the unit has been shut down and isolated. We are often asked to deal with leaves and litter drawn into the unit and air handling units never cleaned inside, on internal panels, heating and cooling coils and filter sections.
In a smaller place like Aylesford, buildings with ducted ventilation are more likely to be a school, a surgery, a care home or a small business unit than an office block. Even a small system collects dust in its ducts and filters.
Nothing is signed off by word of mouth: a written report, dated and illustrated with photos, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Place
- Aylesford (ME20)
- Region
- Kent
- Records
- Report and photos after the visit
- Price
- A fixed price before we start
- When we work
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026

Looking after it afterwards
Here’s the after-treatment advice, in brief:
- Plan the next inspection before the last report gets filed away
- Flag stale or damp smells in the supply air
- Make sure condensate is draining away
- Report water on the plant room floor
The report suggests a date for the next inspection or clean, taking into account how dirty it was. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Make sure access doors and panels on the unit open easily. If a section is hard to get into, it tends not to get checked.
Aylesford: your questions answered
Can you clean school ventilation in Aylesford during the holidays?
Yes, and it’s the easiest time to do it. Food Standards Agency records list about 6 schools, colleges and universities with registered kitchens within about a mile and a half of Aylesford. Tell us your holiday dates and we’ll book the visit for when the site is empty.
Can you come to Aylesford after we close?
Yes, out-of-hours work is a big part of what we do. It means the site in Aylesford keeps running as normal. Let us know the hours you are closed and we’ll book within them.
Where does the waste go?
We take it away at the end of the visit. While we work, it’s kept contained so the area stays clean.
Can you price the work without visiting?
Yes, where the photos show enough. Otherwise, we book a survey at a time that suits the site, and the quote follows that.
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.
How much does AHU cleaning cost?
The cost depends on the size of the system, its condition, access and timing. Call for a fixed quote, typically ready within one working day.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Will we get paperwork for the AHU clean?
Yes, a TR19® certificate and a photo report. The report also suggests when the unit should next be inspected.
AHU cleaning in Aylesford: local notes
The FSA’s food hygiene register lists about 6 schools, colleges and universities and about 9 care, childcare and hospital premises with registered kitchens or food service within 1.5 miles or so of the middle of Aylesford. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. Aylesford’s nearest hospital, Maidstone Hospital, is about 1.7 miles south. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. Aylesford, about 28 miles from central London, is within our usual area. The visit is fixed around your opening hours, not ours.
Hospitals such as Maidstone Hospital (about 1.7 miles south) show how much a building can rely on clean ventilation, and smaller healthcare sites near Aylesford are no different. Wherever a school like Aylesford Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Aylesford is about 3 miles north-west of Maidstone, in Kent. Across the ME20 area, we can take on AHU cleaning. Aylesford is one of 922 places in Kent where we work for commercial clients.
Postcode districts we cover here for AHU cleaning: ME20. Whether your site is on Station Road, High Street and Hall Road or a nearby road, we can help. Nearby, we also carry out AHU cleaning in Ditton (1 mile west), Allington (1 mile south-east), East Malling (2 miles west), Well Street (2 miles south-west) and Fant (2 miles south). Larger places within reach include Maidstone (3 miles south-east), Sittingbourne (12 miles east), Dartford (15 miles north-west), Sevenoaks (12 miles west), Royal Tunbridge Wells (14 miles south-west) and Gravesend (10 miles north-west).
What’s near Aylesford
In Aylesford, that means kitchens and buildings near Aylesford School, The Chequers pub and Ditton Quarry and the streets around them. There’s a railway station in Aylesford itself: Aylesford station. Well-known places in the area include Allington Castle (1.7 miles east) and Medway megaliths (1.7 miles north-east). Open spaces near Aylesford include Burham Down and Blue Bell Hill.
What affects the quote in Aylesford
We quote each job individually. These are the things that affect it:
- The number of sites or systems
- When the work can happen, such as evenings, overnight or weekends
- Site requirements such as sign-in and permits
- How easy every part is to reach
Every site is different, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
Asking for a quote
We can often survey from photos. The most useful are:
- Where the site is and what kind of site it is
- The times we could work without disrupting the site
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Where the plant sits or the system leaves the building, such as a roof or outside wall
To help us quote: where the site is, what it is and its opening hours, a few pictures and any previous report or certificate. Then call 0345 646 2711, or send details by email.
Why deal with it now?
Cleaning a unit while it only has light dust is quick. Leave it for years and dirt bakes onto coils and casings, particularly where damp has made it stick. It’s better to plan the work at a site near Aylesford than wait for a failure.
Several systems or sites on one quote often makes better use of the time. Tell us about everything you’d like looked at and we will price it together.
Why choose Duct Doctor in Aylesford
- Out-of-hours work and a 24/7 emergency line
- Every job surveyed first
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- CHAS, SafeContractor and ISO 9001
Take a look at our cost guide and our accreditations and certificates.
How the job changes from site to site
Heating and cooling coils
A dirty coil holds back the air and makes heating and cooling less effective. A clean gets air moving through the coil properly again.
Filters
Clogged filters reduce airflow, and dirt can get round the edges. The filter section is cleaned so new or cleaned filters sit properly.
Also near Aylesford
Other services in Aylesford
What staff can safely do
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.
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
What we do, step by step
A visit follows the same order every time: sheeting and protection first, isolate whatever needs isolating, do the work, tidy up and leave you the report. The visit itself takes half a day to a full day per unit, with large plant planned over several shifts. Your opening hours decide when we come to Aylesford, not ours.
- We survey the unit from pictures or on site and agree what’s included.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Standing water and slime come out of the tray and the drain is checked.
- We close up the unit and send the certificate and before and after photos.
Before we arrive
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Let us know about permits to work or site inductions
- Tell us the best time to work, such as after service or at a weekend
Get a fixed quote
Getting a quote does not 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.