Greater London · Air handling unit cleaning
AHU Cleaning in Chiswick
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for Chiswick, with a survey first and a report with pictures at the end. Call for a fixed quote.
- Dirty fans and fan housings
- Drain trays holding standing water
- Air handling units never cleaned inside
What the work involves, part by part
Filters
Filters are the first line of defence in the unit. We check them, and clean or change them as agreed in the quote, and clean the filter housing.
Internal casing and panels
The inside walls and floor of the casing collect dust and debris. We clean each section from intake to discharge.
AHU cleaning in Chiswick
Where a building in Chiswick has had little more than filter changes, there may be dirt on the coils, fan and casing that nobody has looked at. A full clean deals with all of it. If you’re dealing with filters that are clogged or overdue and units needing a clean before a new tenant or handover, we can put it right, from supply and extract fans, heating and cooling coils and dampers and louvres onwards.
London offices and flats often have ductwork added through successive refits, with old runs left behind that are hard to reach. An inspection first shows where cleaning is needed in a building in Chiswick.
Every visit ends with a written report and pictures, so there’s a dated record of the work. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Place
- Chiswick (W4, SW14)
- Wider area
- Greater London
- Paperwork
- Photo report after each visit
- Price
- A fixed quote up front
- Hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Checked
- 30 October 2026
More services for Chiswick
Do you need AHU cleaning in Chiswick?
Mechanical servicing keeps a unit running, but it doesn’t always include cleaning the inside. So a unit can be well maintained and still dirty.
It’s time to book a visit if you see:
- Condensate trays that won’t empty
- Fan sections that haven’t been cleaned in years
- Stale or musty smells from the ventilation
- Plant that needs cleaning after a refit
If you run an office near Chiswick station, its supply ductwork can gather dust for years before anyone looks inside.
Comparing quotes
- When the next visit should be, and why
- Exactly which parts of the system are covered
- Whether they’re fully insured
- If the quote is a fixed price or an estimate
Looking after it afterwards
Aftercare is simple, and it helps at the next visit:
- Make sure the unit’s access doors open easily
- Plan the next inspection before the last report gets filed away
- Change filters on schedule and log each change
- Keep the certificate and photo report with the plant records
Keep filter changes on schedule between cleans, because good filters protect everything downstream. Log every change so it’s easy to see when the next is due.
Change or clean filters on time. Once filters clog, dirt starts getting past them.
What we do, step by step
We’re used to working while the site is closed. A lot of visits happen overnight or at weekends, so a kitchen or building can carry on as usual the next day. The visit itself takes a single shift for a typical unit, longer for large or heavily soiled ones. Getting kit into a London building takes planning, so let us know where we can load and park in Chiswick.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- After photos are taken and the certificate issued.
How to prepare
- Clear the space around the work
- Let us know about parking and loading
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
How to get a quote
Want a quote for AHU cleaning? Please call 0345 646 2711 or drop us a line and tell us about the site. We’ll explain what we’d do and send a fixed quote before anything is booked.
Related advice
Chiswick buildings and their air
Going by the FSA’s register, there are about 57 schools, colleges and universities, about 76 care, childcare and hospital premises and about 26 hotels and B&Bs serving food across Chiswick and its immediate surroundings (about a mile and a half). Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. For Chiswick, the closest hospital is West London Hospital, roughly 1.5 miles east. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. London plant rooms are often on roofs or in basements reached through occupied floors.
School buildings such as The William Hogarth Primary School are usually done in the holidays, so classrooms aren’t disturbed. Hospitals such as West London Hospital (about 1.5 miles east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Chiswick are no different.
Chiswick is about 1 mile south of Acton, in Greater London. We provide AHU cleaning for businesses, landlords and public buildings in Chiswick and the rest of Greater London. Across Greater London, we cover 764 places, Chiswick among them. We also work in London, around 7 miles away.
All of W4 and SW14 is covered for AHU cleaning, from busy streets to back roads. AHU cleaning is available to premises on Pumping Station Road, Dale Street and Devonshire Road and nearby roads. We also cover Turnham Green (1 mile south), Old Chiswick (1 mile south-east), Grove Park (1 mile south-west), Gunnersbury (1 mile west) and Strand-on-the-Green (1 mile west). We also work in nearby towns such as London (7 miles east), City of Westminster (5 miles east), Marylebone (5 miles east), St Pancras (6 miles north-east), Shoreditch (8 miles east) and Walthamstow (12 miles north-east).
Around Chiswick
Around Chiswick, our work takes us to kitchens and buildings near Polish Library POSK in London, Mawson Arms and Chiswick School and the streets around them. Nearby too are Turnham Green (0.5 miles west) and The Swedish School (0.6 miles south-east). The nearest railway station is Chiswick station, about 0.8 miles south-west. Other landmarks nearby include West London Hospital (1.5 miles east) and Kurdish Museum Library and Archive (0.8 miles east). The countryside around Chiswick includes Campden Hill and Duke's Hollow.
What happens if it’s left?
Tenants, auditors and owners may want proof that the air handling plant is kept clean. Our certificate and photo report give you clear evidence, for audits, tenants or your own peace of mind. Shared walls, risers and roofs mean a problem at one London site seldom stays put.
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
Why Chiswick businesses choose us
- Ventilation hygiene specialists since 2009
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- A single point of contact for sites across the South East and London
Take a look at what affects the cost and our accreditations and certificates.
What affects the quote in Chiswick
A fixed price needs a few facts first. We check:
- The number of sites or systems
- One-off work versus a regular cycle
- Any permits to work or inductions
- Parking and loading at the site
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 we start.
Helping us quote
To help us quote quickly, please include:
- The paperwork from the last visit, if you have it
- The postcode and the type of business
- Photos showing the whole system and its surroundings
- The roof, plant room or outside wall the system runs to
Every quote begins with a look at the system, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price, before we start.
In-house cleaning or a specialist?
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.
Your questions about AHU cleaning in Chiswick
What do you need to know about parking in Chiswick?
London parking can be tight, so details of loading bays and permits help. If the building has a loading slot system, we will book into it.
Can you come to Chiswick after we close?
Yes, evening, overnight and weekend work is normal for us. It means the site in Chiswick keeps running as normal. Just give us a ring on 0345 646 2711, or email photos with your opening times and we will plan around them.
How much notice should we give?
Earlier is better, especially for out-of-hours work. We normally quote within one working day, and there’s a 24/7 line for emergencies.
Can you set up regular visits?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, to suit the system and how it’s used.
What’s TR19?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping and expects a risk-based approach.
Can you fix a faulty AHU?
We clean the unit and flag faults rather than repair them, with the details in the report.
Can one contract cover all our sites?
Yes. You deal with one contact for every site in our area, with visits on a regular schedule.
How often should an air handling unit be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. Each report suggests when the unit should next be looked at.