Greater London · Air handling unit cleaning
AHU Cleaning in Willesden Green
Our technicians work in Willesden Green on cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Fixed quotes, work around your opening hours and photo reports on every job.
- Odours coming through the supply air
- Fan sections that haven’t been cleaned in years
- Air handling units due a clean after building work
AHU cleaning in Willesden Green
An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with pictures, so you can see the unit’s condition for yourself. Typical jobs include units needing a clean before a new tenant or handover and leaves and litter drawn into the unit, on internal panels, dampers and louvres and filter sections.
In London, plant rooms are often in basements or on roofs reached through occupied floors, so work in Willesden Green is often done in the evening or at weekends. Parking and loading are agreed with the building in advance.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Where
- Willesden Green (NW10, NW2, NW6)
- Region
- Greater London
- Reporting
- Photo report after every visit
- Quote
- Fixed quote, typically within a working day
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Why act early in Willesden Green
A light clean now is simpler than a heavy one later. Leave it for years and dirt bakes onto coils and casings, especially where there’s been moisture. London sites work long hours, and the longer a job is left, the bigger it gets.
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. You’ll have a fixed price before work begins.
What you get with us
- Survey first, then a fixed quote
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- One contact for all your sites in London and the South East
- Full insurance on every job
See our cost guide and our accreditations.
For landlords and multi-site operators
When the building owner and the occupier are different, the lease normally sets out who maintains what. We are happy to deal with either side and send the paperwork to whoever needs it.
Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept on a regular cycle.
Keeping the system healthy
Good habits slow the build-up between visits. Our tips:
- Do not store bins or materials near the intake
- Keep the certificate and photo report with the plant records
- Make sure the unit’s access doors open easily
- Don’t ignore odours coming through the grilles
Keep filter changes on schedule between cleans, as that does more than anything to keep the unit clean. Record each change in the maintenance log.
Check drain trays and condensate drains during routine maintenance. Catching a slow drain early stops standing water building up.
Questions from Willesden Green
Can parking be tricky for a job in Willesden Green?
A loading bay, a visitor permit or off-street space near the site in Willesden Green makes the visit easier to plan. Much of our London work is done overnight, which helps.
Can ventilation in schools around Willesden Green be cleaned out of term?
Yes, holiday work suits schools best. There are about 53 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Willesden Green. Just call us on 0345 646 2711 or drop us a line with your term dates and we’ll plan around them.
Will we get paperwork for the AHU clean?
Yes. A TR19® certificate and photo report are sent after the clean, including anything we think needs attention.
How do you keep the site clean during the work?
With sheeting and covers, before anything else happens. We keep the work contained and leave the area clean.
When should our AHU next be cleaned?
TR19® Air takes a risk-based approach, so it depends on inspection rather than a fixed interval. Each report suggests when the unit should next be looked at.
Do you work evenings or weekends?
Yes. We time the work to fit the building’s hours. Healthcare and care settings are planned with staff.
What’s included in an AHU clean?
The main parts are the filters, coils, drain tray, fan and inside of the casing. The survey confirms what’s in your unit before we quote.
Do you have insurance?
Yes. We are fully insured, and the details are available on request.
How the job changes from site to site
Fans and fan sections
Before the fan is touched, the unit is shut down and made safe with your site team.
Heating and cooling coils
Because cooling coils run wet, the dirt on them tends to cling. We clean the coil and the tray beneath it together.
Honest limits
To be straight with you, there are a few things this work will not fix:
- Coils that are corroded or leaking and need replacing
- Dirty ducts beyond the unit itself
- Breakdowns that need a mechanical engineer
Not sure which it is? You can ring 0345 646 2711, or email photos and we’ll tell you honestly.
Where we work
- Drain trays
- Heating and cooling coils
- Supply and extract fans
- Internal panels
- Dampers and louvres
- Filter sections
What happens on the day
Your trading hours come first. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes a single shift for a typical unit, longer for large or heavily soiled ones. Loading bays, visitor permits and roof access are the first things we ask about for a site in Willesden Green.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Getting ready for the visit
- Tell us the best time to work, such as after service or at a weekend
- Tell us about site rules, permits or sign-in
- Name a contact who can let us in at the agreed time
Get a fixed quote
To help us quote: where the site is, what it is and its opening hours, pictures of the system and any previous report or certificate. Then call 0345 646 2711 or use the quote form.
Advice
AHU cleaning around Willesden Green
Going by the FSA’s register, there are about 53 schools, colleges and universities and about 40 care, childcare and hospital premises serving food within roughly a mile and a half of the centre of Willesden Green. Busy, occupied buildings like these are where clean supply air matters most. Many London buildings have had their ductwork altered through several fit-outs, so an inspection comes first. Willesden Green’s nearest hospital, Neasden Hospital, is about 1.4 miles north-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
If you manage shops or offices close to Kensal Rise station, a TR19® Air inspection shows whether the ductwork needs cleaning. If you run a surgery, dental practice or care home near Willesden Green, clean ventilation matters as much to you as to a hospital like Neasden Hospital (about 1.4 miles north-west). Wherever a school like Donnington Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Willesden Green is about 1 mile south-east of Neasden, in Greater London. For AHU cleaning in and around Willesden Green, it’s easy to get a fixed quote: please phone us on 0345 646 2711 or use the quote form. Our area covers London and the South East, Willesden Green included. Willesden Green is one of 764 towns, villages and districts in Greater London we cover for commercial clients. Our London page covers sites nearby, about 7 miles away.
AHU cleaning in NW10, NW2 and NW6 follows the same survey, fixed quote and written report as everywhere else we cover. Whether your site is on Fry Road, High Road and Dean Road or a nearby road, we can help. If your site is just outside Willesden Green, we cover Willesden (1 mile north), College Park (1 mile south), Kensal Green (1 mile south), Harlesden (1 mile south-west) and Kensal Rise (1 mile south-east). Larger places within reach include London (7 miles south-east), City of Westminster (4 miles south-east), Marylebone (4 miles south-east), Kensington (3 miles south-east), St Pancras (5 miles east) and Shoreditch (7 miles east).
Local landmarks in Willesden Green
Around Willesden Green, our work takes us to kitchens and buildings near Roundwood Park, Brondesbury College and Capital City Academy, among other places. The nearest railway station is Kensal Rise station, roughly 0.7 miles south-east. Nearby you’ll also find O2 Centre (2.2 miles east) and Brent Museum and Archives (less than half a mile north). Open spaces near Willesden Green include Campden Hill and Westbere Copse.
Fixed quotes for AHU cleaning in Willesden Green
The diagnosis comes before the price. We look at:
- When the work can happen, such as evenings, overnight or weekends
- Site requirements such as sign-in and permits
- The size of the system
- Whether we need access equipment or extra panels
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are not sure what’s needed, phone us on 0345 646 2711 or send us an email and we’ll give you an honest view and a fixed quote.
What we need to know
A few details help us quote accurately. When you get in touch, it helps to send:
- Detail shots of panels, filters and grilles
- The times we could work without disrupting the site
- The paperwork from the last visit, if you have it
- Any symptoms, from odd noises to smells or leaks
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, the quote is fixed before any work is booked.