Greater London · Air handling unit cleaning
Air handling unit cleaning in Seven Dials, Greater London
For cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Seven Dials, one call is all it takes, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Blocked condensate drains and slimy trays
- Dirty fans and fan housings
- Debris and leaves in the fresh air intake
How we handle AHU cleaning in Seven Dials
Units vary a lot in size, age and layout, whether it’s a compact unit in a ceiling void or a big unit on the roof. We look at the unit first, from pictures or a site visit, and give you a fixed quote, so you know where you stand. If you have leaves and litter drawn into the unit and blocked condensate drains and slimy trays, we can put it right.
Across London, offices, hotels, schools and healthcare buildings rely on mechanical ventilation, much of it supplied through air handling units on roofs or in basements. In a building in Seven Dials, dust and debris build up in the units and ductwork over time.
A written report with photos follows each visit, so you have a record of what was done and when. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Where
- Seven Dials (W1F, W1D, W1T)
- Region
- Greater London
- Paperwork
- Report and pictures after the visit
- Price
- Fixed quote, usually within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
Do you need AHU cleaning in Seven Dials?
An overdue filter loads up with dirt, cutting airflow and sometimes letting dirty air bypass them altogether. After that, the coils and fan collect what the filter should have caught.
Common reasons sites call us include:
- Units needing a clean before a new tenant or handover
- Air handling units with blocked filters
- Rooms that smell stuffy when the system runs
- Leaves and litter drawn into the unit
Wherever a school like St Josephs Catholic Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
What your quote should include
- What happens if part of the system cannot be accessed
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether they’re fully insured
- Whether the figure could change on the day
How we price AHU cleaning
The quote reflects the site in front of us. We consider:
- The times the site is available
- How many systems or sites are involved
- Site rules, permits and inductions
- A single visit or a regular plan
No two sites are the same, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
What we need to know
Before you ask for a quote, gather:
- The roof, plant room or outside wall the system runs to
- Close-ups of filters, grilles, hatches or access panels
- The postcode and the type of business
- Wide photos of the system and the area around it
Need a price for AHU cleaning? Please phone us on 0345 646 2711 or drop us a line with a few details about the site. We’ll talk you through the work and send you a fixed quote before you commit to anything.
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 anything from half a day for one small unit to several shifts for a plant room full of them. Getting kit into a London building takes planning, so let us know where we can load and park in Seven Dials.
- 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
- Plan for cooking equipment or plant to be off before we arrive
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Agree a time when the area can be out of use
Ask for a quote
We do not publish a price list, because no two systems are the same. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, call 0345 646 2711, or email photos.
Related advice
Seven Dials buildings and their air
Going by the FSA’s register, there are about 79 schools, colleges and universities, about 48 care, childcare and hospital premises and about 235 hotels and B&Bs serving food within roughly a mile and a half of the centre of Seven Dials. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. St Paul's Hospital is the nearest hospital, about within half a mile north-east of Seven Dials. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. Getting kit to a London plant room typically means lifts, stairs and an agreed loading slot.
Workplaces around Tottenham Court Road station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts. If you run a surgery, dental practice or care home near Seven Dials, clean ventilation matters as much to you as to a hospital like St Paul's Hospital (about less than half a mile north-east).
Seven Dials is about 1 mile east of City of Westminster, in Greater London. Seven Dials gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with pictures. Seven Dials is one of 764 places in Greater London where we work for commercial clients.
Our technicians cover all of the W1F, W1D and W1T postcode area for AHU cleaning and the streets around it. Streets in the area include Duck Lane, Drury Lane and Bridle Lane, and we cover them all for AHU cleaning. With the A301 and A400 close by, Seven Dials is simple for us to get to for AHU cleaning. Other places close to Seven Dials include St Giles (1 mile north), West End (1 mile west), Soho (1 mile west), Covent Garden (1 mile east) and Chinatown (1 mile south-west). Larger places within reach include Kensington (3 miles west), Walthamstow (7 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).
Near you in Seven Dials
Typical jobs here are in premises near London Nautical School, St Anne's Churchyard and LSE Shaw Library, among other places. Also close by are Two Brewers pub (within half a mile south-west) and Mercers' School (0.8 miles east). Seven Dials has its own railway station: Tottenham Court Road station. A little further out are Kingly Court (0.5 miles west) and St Paul's Hospital (under half a mile north-east). For a walk, there’s Barnsbury Wood and Ludgate Hill.
Questions from Seven Dials
Can you work in Seven Dials outside opening hours?
Yes. We work evenings, overnight and at weekends. That way a site in Seven Dials doesn’t have to lose a day’s trading. Let us know the hours you’re closed and we will book within them.
What do you need to know about parking in Seven Dials?
Parking and loading in London need planning, so tell us about bays, permits and building rules when you book. If the building has a loading slot system, we will book into it.
Do you do ventilation duct cleaning too?
Yes, supply and extract ducts, grilles and diffusers. We will tell you after the survey whether the ducts need it.
How often should an air handling unit be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. We recommend a next date in each report.
Do you offer maintenance contracts?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.
Which kinds of sites do you work on?
All kinds of commercial and public premises: kitchens, offices, schools, healthcare, retail, leisure and food production. Work is timed around how each site runs.
Do you have a 24/7 line?
Yes. Our emergency line runs 24/7, for problems that can’t wait. Ring any time and tell us what’s happened.
Can you fix a faulty AHU?
Motors, belts, controls and coils that need repair are a job for your maintenance contractor. We clean the unit and report anything we see that needs attention.
Keeping the system healthy
Results last longer with the right care. We suggest:
- Report musty smells from the vents right away
- Book the next check in line with the report
- Change filters on schedule and log each change
- Watch for drips or damp patches near the plant
You receive a TR19® certificate and a photo report after the clean. Keep both with the building’s maintenance records.
Regular inspection under TR19® Air shows when cleaning is due, rather than waiting for a problem.
What happens if it’s left?
A light clean now is simpler than a heavy one later. Leave it for years and dirt bakes onto coils and casings, particularly where damp has made it stick. A busy site in Seven Dials builds up dirt and wear quickly, so putting it off makes the eventual job larger.
You will not find a price list here, because the cost depends on the site in front of us. Call for a fixed quote, and we will explain what it covers.
What you get with us
- Every visit written up, with photos
- Trading since 2009
- One number for every site across the South East and London
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Part by part
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. We clean the impeller, housing and surrounding section.
Internal casing and panels
Dust settles on every internal surface of the unit. We clean each section from intake to discharge.
What AHU cleaning cannot fix
An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:
- Problems with the unit’s controls or sensors
- Dirty ducts beyond the unit itself
- Ventilation that was badly designed in the first place
Not sure which it is? You can call us on 0345 646 2711 or drop us a line and we will tell you honestly.
Parts of the system we cover
- Internal panels
- Dampers and louvres
- Filter sections
- Heating and cooling coils
- Drain trays
- Supply and extract fans