Kent · Air handling unit cleaning
Air handling unit cleaning in Dunkirk, Kent
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for businesses, landlords and public buildings in Dunkirk. CHAS, SafeContractor and ISO 9001, and fully insured.
- Dirty coils holding back the airflow
- Air handling units due a clean after building work
- Dirty filters cutting the airflow
When something else is needed
Not every problem is solved by AHU cleaning, and we will tell you before any work starts. It won’t put right:
- Ductwork downstream of the unit, which is a separate clean
- Mechanical faults with motors, belts or bearings
- Building management system faults
If in doubt, call us on 0345 646 2711, or email photos and we will say what we think.
Parts of the system we cover
- Supply and extract fans
- Drain trays
- Internal panels
- Filter sections
- Dampers and louvres
- Heating and cooling coils
AHU cleaning in Dunkirk
If the units serving a building in Dunkirk have only had filter changes for years, there may be dirt on the coils, fan and casing that nobody has looked at. A full AHU clean takes in the whole unit. We are often asked to deal with plant that has been serviced but not cleaned and dirty coils holding back the airflow, on drain trays, heating and cooling coils and supply and extract fans.
For a building in or near Dunkirk, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
- Where
- Dunkirk (ME13)
- Region
- Kent
- Paperwork
- Written report with photos
- Price
- A fixed quote up front
- Working hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Places near Dunkirk
Other services in Dunkirk
AHU cleaning around Dunkirk
Dunkirk’s nearest hospital, Eastbridge Hospital of St Thomas the Martyr, is about 4.4 miles east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. At about 48 miles from central London, Dunkirk sits well inside the area we cover. A survey and a fixed quote come first, then the visit at a time that suits you.
If you run a surgery, dental practice or care home near Dunkirk, clean ventilation matters as much to you as to a hospital like Eastbridge Hospital of St Thomas the Martyr (about 4.4 miles east).
Dunkirk is about 4 miles south-east of Faversham, in Kent. From the centre of Dunkirk to the outskirts, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. Dunkirk is one of 922 towns, villages and districts in Kent where we work for AHU cleaning. You can also see our page for Maidstone, roughly 20 miles from Dunkirk.
Postcode districts we cover here for AHU cleaning: ME13. Streets in the area include London Road and Courtenay Road, and we cover them all for AHU cleaning. If your site is just outside Dunkirk, we cover Boughton under Blean (1 mile west), Winterbourne (1 mile south-west), Hickmans Green (1 mile west), Oversland (1 mile south-west) and South Street (2 miles south-west). Larger places within reach include Ashford (12 miles south-west), Canterbury (5 miles east), Sittingbourne (11 miles west), Whitstable (5 miles north-east), Faversham (4 miles north-west) and Herne Bay (9 miles north-east).
Around Dunkirk
Locally, jobs take us to businesses close to The Red Lion pub and Mount Ephraim Gardens. Dunkirk’s nearest station is Selling station, about 1.9 miles south-west. A little further out are Chilham Castle (3.5 miles south) and Eastbridge Hospital of St Thomas the Martyr (4.4 miles east). The countryside around Dunkirk includes Blean Woods RSPB Reserve.
What your team can do, and what needs us
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
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.
Aftercare tips
So the system stays in good health:
- Book the next check in line with the report
- Store the TR19 paperwork where auditors can find it
- Change filters on schedule and log each change
- Make sure the unit’s access doors open easily
The ducts served by the unit may need attention too. Cleaning the unit and ducts together gives the best result, and we can quote for both.
Keep the area around the intake clear. What’s near the intake ends up in the unit.
Questions from Dunkirk
Do you cover Dunkirk for AHU cleaning?
Yes. Our area runs across London and the South East, Dunkirk included. A fixed quote typically follows within one working day of the survey details.
Do you work overnight in Dunkirk?
Yes, we can come after you close and finish before you open. The site is handed back ready to open. When you ring 0345 646 2711 or send us an email, mention when the site is quiet.
Can one contract cover all our sites?
Yes. Tell us the addresses and what each needs and you will get one fixed quote.
What do you clean inside the unit?
Every section that collects dirt: filters, coils, tray, fan and panels. We confirm the scope after looking at the unit.
Do you have a 24/7 line?
Yes, any time. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line and we’ll talk you through the next steps.
How do you protect the area?
By covering it before any work starts. The work is kept contained and clean down when we finish.
What does TR19 mean?
A BESA specification in two main parts: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It isn’t law, but it’s the benchmark.
Can you clean the ducts connected to the AHU?
Yes. We reach the ducts through access panels, with anything inaccessible recorded, and new panels can be fitted.
What affects the quote in Dunkirk
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The number of sites or systems
- The times the site is available
- Access, including roofs, risers and ceiling voids
- One-off work versus a regular cycle
What you pay depends on the size of the system, what state it’s in and how easy it is to reach. You get a fixed price before work begins, so you know where you stand.
Helping us quote
To speed up the quote, please include:
- Your opening hours and when the area is out of use
- Problems your staff have spotted
- Photos showing the whole system and its surroundings
- How we’d reach plant on a roof or in a plant room
If you need AHU cleaning in Dunkirk, call us on 0345 646 2711, or email photos. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. We typically send a fixed quote within one working day.
What happens if it’s left?
A clogged coil or dirty fan makes the unit work harder for the same airflow. That means more wear on the motor and rooms that feel less fresh, and a clean on your terms beats a breakdown on nobody’s. A fault that closes a site in a village like Dunkirk affects everyone who depends on it.
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. You’ll have a fixed price before any work starts.
Why book with us
- We’re fully insured
- Every job surveyed first
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- One contact for all your sites in London and the South East
Common problems we fix in Dunkirk
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.
The symptoms we’re asked about most are:
- Dust built up on fan impellers
- Air handling units due a clean after building work
- Stale or musty smells from the ventilation
- Coils clogged with dust and debris
Around Dunkirk, as anywhere, ventilation cleaning begins with an inspection.
What to look for in a quote
- What insurance they carry
- Proof of accreditation you can verify
- Whether VAT is included
- What paperwork you get at the end
What happens on the day
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool before any work starts, and floors and nearby surfaces are sheeted. On site, it takes from a few hours for a compact unit to a day or more for a large one. Rural roads and tight entrances are worth telling us about before a visit to Dunkirk.
- We survey the unit from photos 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 are dealt with as agreed, and the coils, fan and casing cleaned.
- Drain trays are cleared and cleaned and the outlet checked.
- We close up the unit and send the certificate and before and after photos.
Getting ready for the visit
- Let us know about permits to work or site inductions
- Tell us where we can park and unload
- Let us know how we reach the system, including roofs, risers and plant rooms
Getting a quote
Every quote begins with a look at the system, from your photos and details or, where that isn’t enough, a survey on site. After that, you get a fixed price for the work so you know the cost before any work starts.