Greater London · Air handling unit cleaning
AHU Cleaning in Soho
Specialist AHU cleaning for Soho: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Air handling units with blocked filters
- Odours coming through the supply air
- Plant that needs cleaning after a refit
AHU cleaning in Soho
Heating and cooling coils trap dust that gets past the filters. Dirt on the fins holds back air and makes the unit work harder to do the same job. Coils are cleaned carefully, with methods chosen so the fins are not flattened. If you have air handling units with blocked filters and units that have only ever had filter changes, we can put it right, from internal panels, dampers and louvres and drain trays onwards.
Many London buildings have had their ventilation extended and altered through several fit-outs, with old runs left behind that are hard to reach. In Soho, as elsewhere, cleaning starts with an inspection of what’s there.
Insurers, fire officers and environmental health officers all look at records. That is why every job is written up in a report with photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Where
- Soho (W1F, W1T, W1D)
- Region
- Greater London
- Records
- Written report with pictures
- Price
- A fixed price before work begins
- Hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Common questions in Soho
Do you do school ventilation cleaning in Soho in the summer holidays?
Yes, holiday work suits schools best. Around Soho, the Food Standards Agency lists about 78 schools and colleges with registered kitchens within a mile and a half or so. Booking early in the term gives the best choice of holiday dates.
Is parking a problem for work in Soho?
We plan it in advance, so let us know about loading bays, permits and access rules at the building. Working overnight, as we often do in London, typically makes it simpler.
Which parts of an air handling unit do you clean?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. Filters are cleaned or changed as agreed in the quote.
Do you work with multi-site operators?
Yes. Send the list of sites and the work at each and you’ll get one fixed quote.
Is there a survey before the work?
Yes. For many sites, photos and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
Can you quote from pictures?
Yes, if we can see what we need. Otherwise, we book a survey at a time that suits the site, and the quote follows that.
Where does the waste go?
It leaves the site with us when we go. During the work, it’s contained to keep the area clean.
Will we get paperwork for the AHU clean?
Yes, both a certificate and a report with pictures. It includes a recommended date for the next check.
Landlords, agents and facilities managers
Multi-site operators often want one contractor and one number. We work across London and the South East, so a run of sites can go into one programme and kept on a regular cycle.
Records are where multi-site compliance often slips. Each visit produces a dated report with photos, ready to show insurers, fire officers or EHOs.
Looking after it afterwards
Looking after the system between visits is straightforward, and it helps at the next visit:
- Keep inspection doors on the unit in good order
- Note any water around the unit or leaks below it
- Diary the inspection date recommended in the report
- Make sure condensate is draining away
Keep filter changes on schedule between cleans, because good filters protect everything downstream. Record each change in the maintenance log.
Make the drain tray part of every maintenance visit. A drain that is cleared early never gets to the slime stage.
Common problems we fix in Soho
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. Most of it lands at the intake and the first stage of filters, and the finer material travels on.
Signs it’s time to call us include:
- Plant that has been serviced but not cleaned
- Rooms that smell stuffy when the system runs
- Condensate trays that will not empty
- Filters that are clogged or overdue
St James Workhouse, about less than half a mile west, is the nearest hospital to Soho, and healthcare sites of every size need their supply air kept clean.
Questions to ask before booking
- What happens if part of the system can’t be accessed
- Proof of accreditation you can verify
- Whether the price is fixed
- What records you will receive afterwards
Towns and villages near Soho
Also in Soho
When something else is needed
Before booking, it helps to know what’s not included:
- Mechanical faults with motors, belts or bearings
- Dirty ducts beyond the unit itself
- Building management system faults
If you are not sure, just call us on 0345 646 2711 or drop us a line and we’ll give you a straight answer.
Where we work
- Supply and extract fans
- Drain trays
- Filter sections
- Dampers and louvres
- Heating and cooling coils
- Internal panels
Why act early in Soho
A slimy drain tray only gets worse. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Clearing it now is a much smaller job. In Soho, as across London, ductwork often passes through shared risers and other people’s space.
The cost depends on the size of the system, what state it’s in and access to every part of it. You get a fixed price before work begins, so there are no surprises.
Why choose Duct Doctor in Soho
- Out-of-hours work and a 24/7 emergency line
- Trading since 2009
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- We diagnose before we treat
See how cleaning jobs are priced and how to check a contractor.
Ventilation in Soho buildings
Going by the FSA’s register, there are about 78 schools, colleges and universities, about 42 hospitals, care homes and childcare premises and about 237 hotels, B&Bs and guest houses serving food within roughly a mile and a half of the centre of Soho. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Ventilation cleaning in London buildings is typically planned for evenings or weekends. The nearest hospital to Soho is St James Workhouse, about within half a mile west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
For schools like Soho Parish CofE Primary School, the holidays are the usual time to inspect and clean ventilation. For workplaces around Tottenham Court Road station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Soho is about 1 mile east of City of Westminster, in Greater London. Whatever kind of site you run in Soho, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Soho is one of 764 places in Greater London where we work for commercial clients.
All of W1F, W1T and W1D is covered for AHU cleaning, from busy streets to back roads. Whether your site is on Duck Lane, Drury Lane and Bridle Lane or anywhere close by, our technicians can take on the work. With the A4 and A301 close by, Soho is easy for our technicians to reach for AHU cleaning. We also cover the places around Soho: West End (1 mile east), Chinatown (1 mile south), Seven Dials (1 mile east), St Giles (1 mile north-east) and St James's (1 mile south). Larger places within reach include Kensington (3 miles west), Walthamstow (7 miles north-east), Whitechapel (3 miles east), Hampstead (3 miles north-west), Ruislip (13 miles west) and Stockwell (3 miles south).
Local landmarks in Soho
Around Soho, our work takes us to kitchens and buildings near Bar Soho, St Anne's Churchyard and Harris Westminster Sixth Form. Also close by are LITE Regal International School (0.6 miles west) and London Library (0.5 miles south-west). Soho has its own railway station: Tottenham Court Road station. Well-known places in the area include Kingly Court (within half a mile west) and Montfichet's Tower (1.3 miles east). For a walk, there’s St. James's Park Lake and Ludgate Hill.
What happens on the day
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the job takes a single shift for a typical unit, longer for large or heavily soiled ones. Before any visit in Soho, we agree where the van can stop and how equipment reaches the system.
- 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.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
How to prepare
- Mention any locked doors, roof access or ceiling voids
- Name a contact who can let us in at the agreed time
- Dig out any earlier paperwork for the system
Ask for a quote
To get a fixed quote, give us a ring on 0345 646 2711, or email photos and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. You’ll normally have a quote within one working day.
Advice
What the work involves, part by part
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. Cleaning restores the open path through the fins.
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. Anything like that is recorded with pictures.