Kent · Air handling unit cleaning
Swanscombe AHU cleaning
AHU cleaning across Swanscombe and nearby, timed so the site keeps working and signed off in writing with photos.
- Stale or musty smells from the ventilation
- Intake sections clogged with outdoor debris
- Units that have only ever had filter changes
Part by part
Filters
Filter condition tells you a lot about the rest of the unit. We photograph them for the report.
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. A clean gets air moving through the coil properly again.
About our AHU cleaning in Swanscombe
If the units serving a building in Swanscombe 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. The work covers internal panels, supply and extract fans and heating and cooling coils, and the jobs we see most are filters that are clogged or overdue and air handling units never cleaned inside.
Smaller buildings around Swanscombe often keep their ventilation units in a roof void or plant cupboard, where they’re easy to forget. Every unit, large or small, has filters, coils and a drain tray to keep clean.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Location
- Swanscombe (DA9, DA10)
- Region
- Kent
- Paperwork
- Report and pictures after the visit
- Quote
- A fixed price before work begins
- Hours
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
What happens on the day
Our technicians bring everything the work needs, including protection sheets, the right tools and access kit. You only need to give us clear access and switch off what needs to be off. On site, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. Around Swanscombe, access is usually simpler than in a town centre, though gates and roof access are worth mentioning.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- We take after photos and issue the certificate and report.
Preparing for the visit
- Clear the space around the work
- Name a contact who can let us in at the agreed time
- Allow time for equipment near the work to be turned off and cool down
How to get a quote
Getting a quote doesn’t take long. Send a few details and photos, and we typically reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Related advice
Landlords, agents and facilities managers
Facilities teams in offices, schools and healthcare sites book us too in Swanscombe and across Kent. Work can be phased by floor, building or site to keep disruption down.
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side and send the paperwork to whoever needs it.
Do you need AHU cleaning in Swanscombe?
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. The intake section and first filters take the brunt, and some travels further into the unit.
Signs it’s time to call us include:
- Air handling units never cleaned inside
- Fan sections that haven’t been cleaned in years
- Odours coming through the supply air
- Dirty coils holding back the airflow
Healthcare ventilation, from large hospitals like Darent Valley Hospital (about 1.7 miles south-west) to small clinics, depends on clean filters, coils and ducts.
Comparing quotes
- Whether the price is fixed
- Proof of insurance
- What records you will receive afterwards
- Whether the quote is based on a survey or photos
Towns and villages near Swanscombe
Also in Swanscombe
What affects the quote in Swanscombe
We quote each job individually. These are the things that affect it:
- Whether we need access equipment or extra panels
- Whether several sites go on one quote
- The times the site is available
- A single visit or a regular plan
Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all play a part.
What to send for a quote
Photos let us diagnose from a distance. The most useful are:
- A few general shots of the system
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Any access panels or hatches you can see
- Where the plant sits or the system leaves the building, such as a roof or outside wall
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
Keeping the system healthy
Think of this as the after-treatment advice, short and simple:
- Keep inspection doors on the unit in good order
- Diary the inspection date recommended in the report
- Do not store bins or materials near the intake
- Stick to the filter change plan
Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Do not let leaves, litter or stored materials build up near the fresh air intake. Anything around the intake is likely to be drawn in.
Swanscombe questions
Can ventilation in schools around Swanscombe be cleaned out of term?
Yes. The holidays are the usual time for school work. Around Swanscombe, the Food Standards Agency lists about 7 schools and colleges with registered kitchens within a mile and a half or so. Send us your term dates when you call us on 0345 646 2711 or use the quote form, and we’ll fit the work in.
Do you work at weekends in Swanscombe?
Yes. We work evenings, overnight and at weekends. That way a site in Swanscombe doesn’t have to lose a day’s trading. When you phone us on 0345 646 2711 or email us, mention when the site is quiet.
Do you work in Swanscombe?
Yes. Swanscombe is part of the area we cover, within the South East and London area we cover.
How do you keep the site clean during the work?
We cover floors and nearby surfaces with sheeting before any work starts, and anything we remove is contained. Before we leave, we tidy up and clean down.
What types of premises do you cover?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
What do you clean inside the unit?
Everything inside the unit that air passes over, from intake to discharge, including coils, fan and drain trays. You get a photo report showing each part before and after.
Will the ventilation be off while you clean?
Yes. We cannot clean a running unit, so it’s switched off and made safe first. We agree the timing with your site team.
Do you have a 24/7 line?
Yes. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we’ll talk you through the next steps.
Honest limits
We’d rather tell you now than book work that will not help, so these are the things it won’t cover:
- Building management system faults
- Mechanical faults with motors, belts or bearings
- The supply and extract ducts, quoted separately
Not sure which it is? You can call us on 0345 646 2711 or email us and we’ll tell you honestly before booking.
Where we work
- Filter sections
- Supply and extract fans
- Internal panels
- Dampers and louvres
- Heating and cooling coils
- Drain trays
AHU cleaning in Swanscombe: local notes
There are about 7 schools, colleges and universities and about 8 hospitals, care homes and childcare premises on the FSA’s food hygiene register within about 1.5 miles of central Swanscombe. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. About 17 miles out from central London, Swanscombe is part of the South East area we work across. Evening, overnight and weekend visits are all possible. The nearest hospital to Swanscombe is Darent Valley Hospital, about 1.7 miles south-west. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
If you run an office near Greenhithe for Bluewater station, its supply ductwork can gather dust for years before anyone looks inside. Wherever a school like Knockhall Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Swanscombe is about 3 miles east of Dartford, in Kent. Swanscombe gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with photos. 922 places in Kent are on our list, from busy centres to quieter spots. Maidstone is in our area too, around 16 miles away.
AHU cleaning in DA9 and DA10 follows the same survey, fixed quote and written report as everywhere else we cover. That includes premises on London Road, Craylands Square and High Street and nearby roads. With the A206 and A226 close by, Swanscombe is easy for our technicians to reach for AHU cleaning. We also cover Greenhithe (1 mile north-west), Stone (1 mile west), Bean (1 mile south), West Thurrock (2 miles north) and Darenth (2 miles south-west). Further out, we also cover Dartford (3 miles west), Sevenoaks (12 miles south), Gravesend (4 miles east), Northfleet (3 miles south-east), Swanley (6 miles south-west) and Kings Hill (13 miles south).
Around Swanscombe
Locally, jobs take us to businesses close to Castle Hill Park, The Ebbsfleet Academy and The Pier Hotel. The closest station to Swanscombe is Greenhithe for Bluewater station, about 0.5 miles west. A little further out are Stone Castle (0.7 miles south-west) and Bluewater (1 mile south-west). Not far away are Sawyers Lake and Chafford Gorges Nature Park.