Kent · Air handling unit cleaning
Air handling unit cleaning in Stone Hill, Kent
AHU cleaning for Stone Hill, from a team that has been trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Plant that needs cleaning after a refit
- Dirty coils holding back the airflow
- Intake sections clogged with outdoor debris
AHU cleaning in Stone Hill
An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with pictures, so you can see the unit’s condition for yourself. The work covers filter sections, heating and cooling coils and drain trays, and people most often call us about blocked condensate drains and slimy trays and rooms that smell stuffy when the system runs.
For a building in or near Stone Hill, 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, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Where
- Stone Hill (TN25)
- Wider area
- Kent
- Records
- Written report with pictures
- Quote
- A fixed price before any work starts
- Working hours
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
Looking after it afterwards
So the system stays in good health:
- Do not store bins or materials near the intake
- Look at the condensate drain whenever the unit is serviced
- Keep inspection doors on the unit in good order
- Book the next check in line with the report
Restart the unit with your site team or maintenance contractor once we’ve finished. Keep an eye on the condensate drain over the next few days to make sure it stays clear.
Make the drain tray part of every maintenance visit. Catching a slow drain early stops standing water building up.
What we do, step by step
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the work takes one overnight shift for many single units, with bigger plant phased. Pictures of the system and its access let us plan the work in Stone Hill before we set off.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
How to prepare
- Clear the space around the work
- Dig out any earlier paperwork for the system
- Let us know about parking and loading
Get a fixed quote
Want a quote for AHU cleaning? Please call us on 0345 646 2711, or send details by email with a few details about the site. We will talk you through the work and give you a fixed quote before anything is booked.
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Towns and villages near Stone Hill
More services for Stone Hill
For landlords and multi-site operators
Whether it’s one building or many, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with photos.
We also work for facilities teams across offices, schools and healthcare across Kent. Work can be phased by floor, building or site to keep disruption down.
Stone Hill: your questions answered
Can you do AHU cleaning in Stone Hill?
Yes, we work in Stone Hill and the places around it. Get in touch with the details and we’ll arrange a survey.
Can the work in Stone Hill be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. Your customers, staff or residents in Stone Hill needn’t be disturbed. When you call 0345 646 2711, or email photos, mention when the site is quiet.
Can you look after several sites?
Yes. Send the list of sites and the work at each and you’ll get one fixed quote.
Which sectors do you work in?
Any commercial site with kitchens or ventilation, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
How much notice do you need?
For planned work, earlier is better, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
Is there a report after cleaning?
Yes. You get a TR19® certificate plus before and after photos. Keep them in the maintenance log.
Which parts of an air handling unit do you clean?
Every section that collects dirt: filters, coils, tray, fan and panels. We confirm the scope after looking at the unit.
Does the AHU have to be shut down for cleaning?
Yes. We cannot clean a running unit, so it’s switched off and made safe first. The shutdown is planned with whoever runs the building.
Stone Hill buildings and their air
There are about 4 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register in Stone Hill and the streets around it, up to about 1.5 miles out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Stone Hill’s nearest hospital, William Harvey Hospital, is about 3.8 miles north-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. About 54 miles out from central London, Stone Hill is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you.
Classrooms and halls at schools such as Sellindge Primary School are easiest to work in when pupils are away.
Stone Hill is about 5 miles north-west of Hythe, in Kent. If you need AHU cleaning in Stone Hill, please call us on 0345 646 2711, or email photos for a fixed quote. Our area covers London and the South East, Stone Hill included. Our Kent coverage runs to 922 places, Stone Hill among them. There’s also a page for Maidstone, roughly 23 miles from Stone Hill.
Our technicians cover all of the TN25 postcode area for AHU cleaning and the streets around it. You’ll find streets such as Stone Hill, Southenay Lane and Cooper's Lane, and we cover them all for AHU cleaning. Other places close to Stone Hill include Lilyvale (1 mile north-west), Brabourne Lees (1 mile north-west), Smeeth (1 mile north-west), Ridgeway (1 mile north-west) and Bircholt Forstal (2 miles north). Larger places within reach include Ashford (6 miles west), Canterbury (12 miles north), Dover (14 miles east), Folkestone (8 miles east), Faversham (15 miles north) and Hythe (5 miles south-east).
Near you in Stone Hill
Stone Hill’s nearest station is Westenhanger station, roughly 2.4 miles south-east. Nearby you will also find Lympne Castle (3.1 miles south-east) and William Harvey Hospital (3.8 miles north-west). For a walk, there’s Hatch Park and Tolsford Hill.
What a clean will not put right
Not every problem is solved by AHU cleaning, and we’d rather say so up front. It does not solve:
- The supply and extract ducts, quoted separately
- Mechanical faults with motors, belts or bearings
- A system that’s undersized for the building
If you’re not sure, just call 0345 646 2711, or email photos and we will give you a straight answer.
What the work covers
- Dampers and louvres
- Heating and cooling coils
- Supply and extract fans
- Drain trays
- Filter sections
- Internal panels
What affects the quote in Stone Hill
Some jobs are bigger than they look, and some smaller. The main factors:
- How big the system is
- Whether it’s a one-off visit or part of a schedule
- Site requirements such as sign-in and permits
- How easy every part is to reach
A single site or a whole portfolio, the quote is built the same way: the work involved, the access and the timing. The price is fixed before any work starts.
What we need to know
To help us quote quickly, send us:
- Any access panels or hatches you can see
- How we’d reach plant on a roof or in a plant room
- When the site is open and when it’s quiet
- Any symptoms, from odd noises to smells or leaks
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 give us a ring on 0345 646 2711 or send us an email.
Signs you need AHU cleaning in Stone Hill
Dirt in an AHU matters in two ways: the unit supplies the air people breathe, and a dirty unit has to work harder. For the people using the building every day, that is the air they breathe for hours on end.
These are the problems we see most often:
- Air handling units due a clean after building work
- Units that have only ever had filter changes
- Dirty fans and fan housings
- Air handling units with blocked filters
Healthcare buildings such as William Harvey Hospital, about 3.8 miles north-west, depend on their ventilation; if you manage a surgery, clinic or care home near Stone Hill, yours matters too.
Before booking anyone
- Proof of accreditation you can verify
- Whether the figure could change on the day
- When the next visit should be, and why
- Exactly which parts of the system are covered
What staff can safely do
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. Leave those to us.
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.