Kent · Air handling unit cleaning
AHU Cleaning in Greenhithe
Professional AHU cleaning in and around Greenhithe, timed so the site keeps working and finished with a written report and photos.
- Air handling units with blocked filters
- Debris and leaves in the fresh air intake
- Fan sections that haven’t been cleaned in years
AHU cleaning in Greenhithe, done properly
A cooling coil drips condensate into a tray that should drain away. If the outlet blocks, standing water and slime build up, in the airstream that feeds the building. Cleaning and clearing it is a key part of the job. If you have dirty filters cutting the airflow and drain trays holding standing water, we can put it right, from drain trays, filter sections and heating and cooling coils onwards.
Around a place like Greenhithe, ventilation systems tend to be in schools, surgeries, care homes and workplaces. Even a small system collects dust in its ducts and filters.
For insurers and inspectors, the record counts. That is why every job is written up in a report with pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Where
- Greenhithe (DA9, DA10)
- Wider area
- Kent
- Records
- Written report with photos
- Quote
- Fixed quote, normally within a working day
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
How the job changes from site to site
Rooftop and plant room units
Ceiling-mounted and compact units are cleaned too. The space underneath is protected with sheeting first.
Drain trays
The drain tray collects water from the cooling coil. We clear standing water, clean out slime and check the outlet is draining.
Also near Greenhithe
Also in Greenhithe
For landlords and multi-site operators
If you look after several sites, we can schedule visits across all of them on one quote. Each site gets its own report and pictures, so each one has its own record.
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party, and the report can go to both.
What your team can do, and what needs us
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
The process
There are three stages on the day: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with photos. Most of the time goes on the work itself, which takes from a few hours for a compact unit to a day or more for a large one. Everything the job in Greenhithe needs is worked out beforehand, from the survey.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Preparing for the visit
- Let us know how we reach the system, including roofs, risers and plant rooms
- Plan for cooking equipment or plant to be off before we arrive
- Name a contact who can let us in at the agreed time
Get a fixed quote
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.
Related advice
Ventilation in Greenhithe buildings
Going by the FSA’s register, there are about 4 schools, colleges and universities and about 12 hospitals, care homes and childcare premises serving food within 1.5 miles or so of the middle of Greenhithe. Busy, occupied buildings like these are where clean supply air matters most. Greenhithe, about 17 miles from central London, is within our usual area. A survey and a fixed quote come first, then the visit at a time that suits you. Greenhithe’s nearest hospital, Darent Valley Hospital, is about 1.5 miles south-west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
Hospitals such as Darent Valley Hospital (about 1.5 miles south-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near Greenhithe are no different. If you manage a school such as Knockhall Primary School, ventilation cleaning is best booked for the holidays.
Greenhithe is about 3 miles east of Dartford, in Kent. Anywhere in DA9, we can carry out AHU cleaning at your premises. Across Kent, we cover 922 places, and Greenhithe is one of them. For sites nearby, see our London page (17 miles or so).
All of DA9 and DA10 is within our area for AHU cleaning, from the main roads to the quietest streets. AHU cleaning is available to premises on Bean Road, The Avenue and Abbey Road and the roads around them. You’ll find Greenhithe on the A206, so it’s easy for us to get to for out-of-hours visits. Other places close to Greenhithe include Swanscombe (1 mile south-east), Stone (1 mile south-west), Bean (2 miles south), West Thurrock (2 miles north) and Darenth (2 miles south-west). Within a short drive, 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-east).
Local landmarks in Greenhithe
We work in commercial kitchens and buildings around Castle Hill Park, The Ebbsfleet Academy and The White Hart Public House. Greenhithe has its own railway station: Greenhithe for Bluewater station. Well-known places in the area include Darent Valley Hospital (1.5 miles south-west) and Stone Museum of Geology (1.8 miles west). Green spaces nearby include Chafford Gorges Nature Park and Sawyers Lake.
Keeping the system healthy
To keep the system working properly between visits:
- File each AHU report in the maintenance log
- Do not ignore odours coming through the grilles
- Keep the area around the fresh air intake clear
- Stick to the filter change plan
Restart the unit with your site team or maintenance contractor once we’ve finished. Check the drain tray is emptying over the first few days to make sure it stays clear.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.
When to call us in Greenhithe
It matters for two reasons: air quality, since the unit feeds occupied rooms, and performance, since dirt makes it strain. For anyone working, learning or staying in a building in Greenhithe, that is air they breathe for hours at a time.
Most sites get in touch when they notice one of these:
- Units that have only ever had filter changes
- Plant that needs cleaning after a refit
- Dirty fans and fan housings
- Odours coming through the supply air
If you manage shops or offices close to Greenhithe for Bluewater station, a TR19® Air inspection shows whether the ductwork needs cleaning.
Questions to ask before you book
- When they can work, and whether that is outside your opening hours
- Whether the figure could change on the day
- How they set the interval to the next visit
- What paperwork you get at the end
How we price AHU cleaning
The survey tells us what the work involves. We look at:
- How many systems or sites are involved
- Whether we need access equipment or extra panels
- The condition of the system
- Where the site is and how we reach it
You won’t find a price list here, because the cost depends on the site in front of us. For a fixed quote, give us a ring on 0345 646 2711, or send details by email, and we will talk you through it.
What we need to know
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- Any symptoms, from odd noises to smells or leaks
- Any access panels or hatches you can see
- The paperwork from the last visit, if you have it
- When the site is open and when it’s quiet
Quotes are quick. Send a few details and pictures, 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.
Greenhithe: your questions answered
Can the work in Greenhithe be done at night or at weekends?
Yes, evening, overnight and weekend work is normal for us. It means the site in Greenhithe keeps running as normal. When you ring 0345 646 2711, or email photos, mention when the site is quiet.
Do you work in villages like Greenhithe?
Yes, Greenhithe is part of our area, however small the site. The journey is planned ahead, so a few details about the route help.
Do you have insurance?
Yes, fully. CHAS and SafeContractor accreditation sit alongside it for clients who vet their contractors.
Will we get paperwork for the AHU clean?
Yes. A TR19® certificate and photo report are sent after the clean, with any faults we noticed.
Do you offer emergency callouts?
Yes, day and night, every day of the year. Office hours are Monday to Friday, 8am to 6pm, with the emergency line covering every other hour.
How do you protect the area?
We start with protection: floor sheeting and covers over nearby surfaces and equipment. The area is left tidy, with our waste taken away.
How much notice do you need?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.
When should our AHU next be cleaned?
It depends on the unit, the filters and how the building is used. Regular inspection shows when it’s due, and the report recommends a next date.