Greater London · Air handling unit cleaning
Air handling unit cleaning in Hounslow, Greater London
We cover Hounslow for air handling unit cleaning. Fixed quotes, work around your opening hours and photo reports on every job.
- Odours coming through the supply air
- Units that have only ever had filter changes
- Intake sections clogged with outdoor debris
AHU cleaning in Hounslow, done properly
A cooling coil drips condensate into a tray that should drain away. If the outlet blocks, standing water and slime build up, right in the path of the air going into the building. Clearing and cleaning the tray is central to every AHU clean. If you’re dealing with dirty coils holding back the airflow and units that have only ever had filter changes, we can help.
London buildings tend to keep their plant on the roof or below ground, so ventilation cleaning in Hounslow is usually planned out of hours. Parking and loading are agreed with the building in advance.
Good records are part of the job. Each visit is written up with photos, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.

- Place
- Hounslow (TW3, TW7, TW2)
- Wider area
- Greater London
- Records
- Report and pictures after the visit
- Quote
- A fixed quote up front
- When we work
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Why act early in Hounslow
A slimy drain tray only gets worse. 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. For a site in Hounslow, fitting the work in overnight now is far easier than closing at short notice later.
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will explain each part.
Why us?
- In business since 2009
- A written report with photos after every visit
- CHAS and SafeContractor accredited, with ISO 9001
- Fixed quotes, typically within one working day
Aftercare tips
To keep the system working properly between visits:
- Book the next check in line with the report
- Keep the certificate and photo report with the plant records
- Don’t ignore odours coming through the grilles
- Keep filter changes on time and recorded
We recommend when the unit should next be inspected or cleaned, taking into account how dirty it was. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Regular inspection under TR19® Air shows when cleaning is due, rather than waiting for a problem.
Ventilation in Hounslow buildings
There are about 40 schools, colleges and universities, about 52 hospitals, care homes and childcare premises and about 13 hotels and guest houses on the FSA’s food hygiene register within roughly a mile and a half of the centre of Hounslow. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. The nearest hospital to Hounslow is South Middlesex Hospital, about 0.9 miles south-east. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. Ventilation cleaning in London buildings is typically planned for evenings or weekends.
If you manage offices or shops near Hounslow station, their ventilation can be inspected and cleaned out of hours. Wherever a school like Chatsworth Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time. If you run a surgery, dental practice or care home near Hounslow, clean ventilation matters as much to you as to a hospital like South Middlesex Hospital (about 0.9 miles south-east).
Hounslow is about 9 miles west of City of Westminster, in Greater London. We carry out AHU cleaning for businesses, landlords and public buildings in Hounslow and the rest of Greater London. Across Greater London, we cover 764 places, and Hounslow is one of them. London is in our area too, around 11 miles away.
All of TW3, TW7 and TW2 is within our area for AHU cleaning, from busy streets to back roads. Local streets include New Road, Ivy Road and Bell Road, all of which we cover for AHU cleaning. We also cover the places around Hounslow: Woodlands (1 mile north-east), Ivybridge (1 mile south-east), Lampton (1 mile north-west), Isleworth (1 mile east) and Spring Grove (1 mile north). We also work in nearby towns such as London (11 miles east), City of Westminster (9 miles east), Marylebone (9 miles east), Kensington (7 miles east), St Pancras (11 miles east) and Shoreditch (12 miles east).
Local landmarks in Hounslow
In Hounslow, that means kitchens and buildings near Moon Under Water pub, Kingsley Academy and Inwood Park, among other places. For rail, the closest station is Hounslow station, roughly 0.6 miles south-west of the centre. Nearby you will also find Museum of Army Music (0.8 miles south) and South Middlesex Hospital (0.9 miles south-east). Open spaces near Hounslow include Garden Lake and Richmond Hill.
In-house cleaning or a specialist?
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 can diagnose it and quote.
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
Managing agents and facilities teams in Hounslow
From a single site to a large estate, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with photos.
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Every building has its own written report, so records stay tidy.
What affects the quote in Hounslow
The diagnosis comes before the price. The main factors are:
- Whether it’s a one-off visit or part of a schedule
- Any permits to work or inductions
- Where the site is and how we reach it
- How big the system is
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered, and you will get one fixed quote.
Asking for a quote
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
- The site address and the type of premises
- Any previous report or certificate
- Wide photos of the system and the area around it
Some systems can be priced from pictures; others need a survey. 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.
Places near Hounslow
What else we do in Hounslow
The process
Your staff don’t need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and we take it from there. Afterwards, the area is left tidy and the written report follows. Most London sites can’t stop for the day, so work in Hounslow is normally done overnight, early in the morning or at weekends.
- We survey the unit from pictures 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.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- Standing water and slime come out of the tray and the drain is checked.
- We close up the unit and send the certificate and before and after photos.
How to prepare
- Dig out any earlier paperwork for the system
- Name a contact who can let us in at the agreed time
- Plan for cooking equipment or plant to be off before we arrive
Ask for a quote
The quickest way to a quote is to send photos: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.
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Common questions in Hounslow
Is parking a problem for work in Hounslow?
Tell us where a van can stop near your site in Hounslow, and about any building rules on loading. Working overnight, as we often do in London, typically makes it simpler.
Do you clean school ventilation in Hounslow in the holidays?
Yes. The holidays are the usual time for school work. With about 40 schools and colleges on the FSA’s register within roughly a mile and a half of Hounslow, it pays to plan holiday dates ahead. Send us your term dates when you phone us on 0345 646 2711 or send us an email, and we’ll fit the work in.
What should I send you?
A short description and a few pictures plus the address and your hours. If we need more, we’ll ask.
Is there a report after cleaning?
Yes. You get a TR19® certificate plus before and after photos. They’re worth keeping with the plant records.
Does the AHU have to be shut down for cleaning?
Yes. Cleaning needs the unit off and isolated, and we time the work to suit the site.
Can you set up regular visits?
Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. Each report recommends when the next visit should be.
Will you repair the fan or motor?
The clean includes noting faults, but repairs sit with your maintenance contractor, with the details in the report.
How long does it take to clean an air handling unit?
Typically the clean takes one overnight shift for many single units, with bigger plant phased. The shutdown is planned to fit, out of hours if needed.
Honest limits
Not every problem is solved by AHU cleaning, and we will tell you before we start. It does not solve:
- Airflow problems caused by the system’s design
- Faulty motors, drives or bearings
- Damaged coils beyond cleaning
Not sure which it is? You can phone us on 0345 646 2711 or use the quote form and we will tell you honestly.
Parts of the system we cover
- Heating and cooling coils
- Supply and extract fans
- Filter sections
- Dampers and louvres
- Internal panels
- Drain trays