Greater London · Air handling unit cleaning
Air handling unit cleaning in Hounslow, Greater London
Looking for AHU cleaning in Hounslow? We survey first, give you a fixed quote and work around your opening hours, finishing with a written report and pictures.
- Filters that are clogged or overdue
- Plant that has been serviced but not cleaned
- Dust-coated heating and cooling coils
AHU cleaning in Hounslow
Where a building in Hounslow has had little more than filter changes, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full clean deals with all of it. If you are dealing with air handling units due a clean after building work and debris and leaves in the fresh air intake, we can help, from heating and cooling coils, internal panels and drain trays onwards.
London buildings tend to keep their plant on the roof or below ground, so ventilation cleaning in Hounslow is typically planned out of hours. Parking and loading are agreed with the building in advance.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. We are also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Location
- Hounslow (TW13)
- Region
- Greater London
- Reporting
- Written report with pictures
- Quotes
- Fixed quote, usually within a working day
- Hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Updated
- 30 October 2026
In-house cleaning or a specialist?
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. Cleaning inside ducts and units is specialist work.
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We’ll take a look and send you a fixed quote.
Part by part
Filters
What’s on the filters is a good clue to what’s further in. They’re photographed before and after for your records.
Internal casing and panels
We open each section through its doors and close them securely when we are done, and check every one is shut.
Common problems we fix in Hounslow
An overdue filter loads up with dirt, cutting airflow and sometimes letting dirty air bypass them altogether. After that, the coils and fan collect what the filter should have caught.
It’s time to book a visit if you see:
- Plant that needs cleaning after a refit
- Air handling units never cleaned inside
- Coils clogged with dust and debris
- Dirty fans and fan housings
For workplaces around Sunbury station with mechanical ventilation, cleaning can be done in the evening or at weekends.
What to look for in a quote
- What insurance they carry
- Proof of accreditation you can verify
- Whether they recommend a next date
- Whether the work can be done while the site is closed
Hounslow: your questions answered
How do you handle parking and loading in Hounslow?
London parking can be tight, so details of loading bays and permits help. Much of our London work is done overnight, which helps.
Can you clean school ventilation in Hounslow during the holidays?
Yes, out-of-term visits are normal for schools. There are about 28 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Hounslow. You can call 0345 646 2711 or drop us a line with the dates the site is empty.
Is there a report after cleaning?
Yes. A TR19® certificate and photo report are sent after the clean, including anything we think needs attention.
Do you need to switch the unit off?
Yes, for the time we are working on it. We can work evenings, overnight or at weekends so the building is not left without ventilation when it’s busy.
What happens if you can’t reach some of it?
We record them on the report, with photos where possible, and we tell you what would make it reachable, for example new access panels.
Do you work with multi-site operators?
Yes. Our area covers London and the South East, so sites at different addresses can be planned together as one programme. Every site has its own report.
Are you insured?
Yes. Full insurance covers our work, and we have been trading since 2009.
Do you cover Hounslow?
Yes. We cover Hounslow and across Greater London, as part of our work across South East England and London. To book, call us on 0345 646 2711 or send us an email.
Looking after it afterwards
Aftercare is simple, and it makes the next visit easier:
- Keep the area around the fresh air intake clear
- Watch for drips or damp patches near the plant
- Make sure the unit’s access doors open easily
- Keep the certificate and photo report with the plant records
We recommend when the unit should next be inspected or cleaned, 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. Sections that are awkward to open are the ones that get skipped.
AHU cleaning around Hounslow
There are about 28 schools, colleges and universities and about 20 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register across Hounslow and its immediate surroundings (about a mile and a half). Busy, occupied buildings like these are where clean supply air matters most. Ventilation cleaning in London buildings is normally planned for evenings or weekends. Ashford Hospital is the nearest hospital, about 1.9 miles north-west of Hounslow. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
Ashford Hospital, about 1.9 miles north-west, is the nearest hospital to Hounslow, and healthcare sites of every size need their supply air kept clean. For schools like Meadhurst Primary School, the holidays are the usual time to inspect and clean ventilation.
Hounslow is about 1 mile north of Sunbury-on-Thames, in Greater London. We carry out AHU cleaning for businesses, landlords and public buildings in Hounslow and the rest of Greater London. Hounslow is one of 764 places in Greater London where we work for AHU cleaning. You can also see our page for Guildford, roughly 14 miles from Hounslow.
Postcode districts we cover here for AHU cleaning: TW13. We also cover Ashford Common (1 mile south-west), Littleton Common (1 mile south-west), Sunbury-on-Thames (1 mile south), Feltham (1 mile north-east) and Bedfont (1 mile north). We also work in nearby towns such as London (15 miles east), City of Westminster (13 miles north-east), Marylebone (14 miles north-east), Kensington (11 miles north-east), St Pancras (15 miles north-east) and Hampstead (14 miles north-east).
Landmarks near Hounslow
Locally, jobs take us to businesses close to Sunbury Park, Sunbury Manor School and Sunbury Manor School and the streets around them. The closest station to Hounslow is Sunbury station, roughly 0.9 miles south-east of the centre. Well-known places in the area include Treaty Centre (3.8 miles north-east) and Ashford Hospital (1.9 miles north-west). Open spaces near Hounslow include St Ann's Hill and Staines Reservoirs.
Towns and villages near Hounslow
Also in Hounslow
What we do, step by step
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 we start, and the area around the work is covered and protected. On site, it takes anything from half a day for one small unit to several shifts for a plant room full of them. Getting kit into a London building takes planning, so let us know where we can load and park in Hounslow.
- First the unit is surveyed, from pictures or a visit, and the scope agreed.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- We clean out the drain tray and make sure it drains.
- A TR19® certificate and photo report follow the clean.
Before we arrive
- Mention any locked doors, roof access or ceiling voids
- Have your last certificate or report to hand
- Mention any parking or loading restrictions
Getting a quote
For AHU cleaning in Hounslow, give us a ring on 0345 646 2711, or email photos. Tell us what kind of premises it is and when it’s open, and send pictures or your last report if you can. A fixed quote typically follows within one working day.
Related advice
What a clean will not put right
It’s worth knowing the limits before booking:
- Breakdowns that need a mechanical engineer
- Problems with the unit’s controls or sensors
- Coils that are corroded or leaking and need replacing
If you are not sure, just give us a ring on 0345 646 2711 or drop us a line and we will give you a straight answer before you book.
What the work covers
- Supply and extract fans
- Heating and cooling coils
- Drain trays
- Internal panels
- Dampers and louvres
- Filter sections
Why it’s worth doing now in Hounslow
Standing water in a drain tray does not clear itself. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Clearing it now is a much smaller job. Planning ahead in Hounslow lets you pick a quiet night rather than lose a busy one.
Working hours, access and the scale of the site all affect the cost. We take each of them into account and give you a fixed price before work begins.
Why Hounslow businesses choose us
- In business since 2009
- A fixed price before any work starts
- One contact for all your sites in London and the South East
- Accredited under CHAS and SafeContractor, with ISO 9001
Read what affects the cost and our accreditations.