Greater London · Air handling unit cleaning
AHU Cleaning in Old Chiswick
AHU cleaning in Old Chiswick from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Rooms that smell stuffy when the system runs
- Dirty filters cutting the airflow
- Fan sections that haven’t been cleaned in years
About our AHU cleaning in Old Chiswick
Our AHU cleans for sites in Old Chiswick cover the parts that collect dirt: filters, coils, drain trays, fans and the internal panels. You get a TR19® certificate and a photo report showing the unit before and after. If you’re dealing with coils clogged with dust and debris and units that have only ever had filter changes, we can put it right, from supply and extract fans, internal panels and filter sections onwards.
London buildings often depend on air handling units in plant rooms or on the roof to supply fresh air. For a building in Old Chiswick, dust settles in the units and ducts year after year, which is what TR19® Air cleaning deals with.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Place
- Old Chiswick (W4, SW13, W6)
- Region
- Greater London
- Reporting
- Photo report after each visit
- Quotes
- A fixed price before work begins
- Working hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
Keeping the system healthy
Simple habits between visits make a real difference. We recommend:
- Make sure condensate is draining away
- Make sure the unit’s access doors open easily
- Change filters on schedule and log each change
- Do not store bins or materials near the intake
The report suggests a date for the next inspection or clean, taking into account how dirty it was. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
Multi-site and managed buildings
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we’re happy to quote for all of it.
We also work for facilities teams across offices, schools and healthcare across Greater London. Work can be phased by floor, building or site to keep disruption down.
Fixed quotes for AHU cleaning in Old Chiswick
Every site gets its own quote. This is what makes a difference:
- Any permits to work or inductions
- Access, including roofs, risers and ceiling voids
- The times the site is available
- Parking and loading at the site
What you pay reflects the actual work. That is why every job is surveyed first, and the price is agreed before work begins.
Asking for a quote
When you contact us, it’s useful to have:
- The site address and the type of premises
- Photos showing the whole system and its surroundings
- Detail shots of panels, filters and grilles
- Problems your staff have spotted
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, you get a fixed price before any work starts.
Staff cleaning versus specialist work
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That’s our job.
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
Different parts, different methods
Fans and fan sections
Before the fan is touched, the unit is shut down and made safe in agreement with the site.
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. We clean the intake and first stage of filters along with the rest.
AHU cleaning in Old Chiswick: local notes
Food Standards Agency records list about 47 schools, colleges and universities, about 69 hospitals, care homes and childcare premises and about 24 hotels and B&Bs registered as food businesses across Old Chiswick and its immediate surroundings (about a mile and a half). Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. The nearest hospital to Old Chiswick is West London Hospital, about 1.3 miles east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. Many London buildings have had their ductwork altered through several fit-outs, so an inspection comes first.
Healthcare ventilation, from large hospitals like West London Hospital (about 1.3 miles east) to small clinics, depends on clean filters, coils and ducts. Workplaces around Chiswick station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts. Wherever a school like The William Hogarth Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Old Chiswick is about 2 miles south of Acton, in Greater London. Sites in Old Chiswick get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where needed and a written report with photos. Across Greater London, we cover 764 places, Old Chiswick among them. London is in our area too, about 7 miles from Old Chiswick.
Postcode districts we cover here for AHU cleaning: W4, SW13 and W6. If you need AHU cleaning at premises on Short Road, Quick Road and Paxton Road or anywhere close by, we can help. Close by, we work in Turnham Green (1 mile west), Chiswick (1 mile north-west), Grove Park (1 mile west), Barnes (1 mile south) and Hammersmith (1 mile north-east). Within a short drive, we also cover London (7 miles east), City of Westminster (5 miles north-east), Marylebone (5 miles north-east), St Pancras (6 miles north-east), Shoreditch (8 miles east) and Walthamstow (12 miles north-east).
Around Old Chiswick
Around Old Chiswick, our work takes us to kitchens and buildings near George and Devonshire pub, The Swedish School and Polish Library POSK in London. Also close by are Turnham Green (0.8 miles north-west) and Chiswick School (0.5 miles south-west). The closest station to Old Chiswick is Chiswick station, roughly 0.8 miles south-west of the centre. A little further out are Kurdish Museum Library and Archive (0.7 miles north-east) and West London Hospital (1.3 miles east). Green spaces nearby include Campden Hill and Kew Gardens Lake.
Also near Old Chiswick
Also in Old Chiswick
How it works
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. The visit itself takes from a few hours for a compact unit to a day or more for a large one. In Old Chiswick, as across London, we normally work overnight or at weekends and hand the site back ready to open.
- 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.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Getting ready for the visit
- Clear the space around the work
- Tell us the best time to work, such as after service or at a weekend
- Mention any locked doors, roof access or ceiling voids
Getting a quote
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and we can price many jobs without a visit.
Advice
FAQs for Old Chiswick
Can the work in Old Chiswick be done at night or at weekends?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Old Chiswick needn’t be disturbed. Let us know the hours you are closed and we will book within them.
How do you handle parking and loading in Old Chiswick?
Parking and loading in London need planning, so tell us about bays, permits and building rules when you book. Much of our London work is done overnight, which helps.
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.
Can you clean the ducts connected to the AHU?
Yes, supply and extract ducts, grilles and diffusers. The survey shows whether the ducts need cleaning now.
Do you need to switch the unit off?
Yes, while the clean is under way. We can work evenings, overnight or at weekends so the building is not left without ventilation when it’s busy.
Is there a report after cleaning?
Yes, both a certificate and a report with pictures. The report also suggests when the unit should next be inspected.
What if parts of the system can’t be reached?
We record them on the report, with a note of where it is, and we explain what access is needed, for example new access panels.
Which parts of an air handling unit do you clean?
All the internal parts the air touches, from the intake and filters through the coils and fan to the outlet. You get a photo report showing each part before and after.
Honest limits
We’d rather tell you now than book work that will not help, so these are the things it won’t cover:
- Controls and BMS settings that run the unit
- Ventilation that was badly designed in the first place
- Leaking heating or cooling coils
If in doubt, call 0345 646 2711 or email us and we will say what we think.
What the work covers
- Dampers and louvres
- Supply and extract fans
- Heating and cooling coils
- Internal panels
- Drain trays
- Filter sections