Greater London · Air handling unit cleaning
AHU Cleaning in Adelphi
AHU cleaning in Adelphi, surveyed first and signed off with a written report and photos. Call for a fixed quote.
- Air handling units due a clean after building work
- Dust-coated heating and cooling coils
- Air handling units never cleaned inside
AHU cleaning in Adelphi
Coils are where a lot of the dirt ends up. A coated coil restricts airflow and makes the unit work harder. Coils are cleaned carefully, with methods chosen so the fins are not flattened. If you have leaves and litter drawn into the unit and fan sections that haven’t been cleaned in years, we can put it right.
In London, plant rooms are often in basements or on roofs reached through occupied floors, so ventilation cleaning in Adelphi is usually planned out of hours. Parking and loading are agreed with the building in advance.
Nothing is signed off by word of mouth: a written report, dated and illustrated with pictures, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Place
- Adelphi (W1D, W1F, WC2H)
- Wider area
- Greater London
- Records
- Written report with photos
- Price
- A fixed price before work begins
- Hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
How the job changes from site to site
Drain trays
Standing water in a tray sits right where the air passes. We clean it and report anything about the tray or drain that needs fixing.
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. A clean gets air moving through the coil properly again.
What happens on the day
Everything the job needs comes with us, including protection sheets, the right tools and access kit. All we need from you is clear access and the right equipment switched off. On site, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. In a London area like Adelphi, parking, loading and building access are planned before the day of the work.
- We start with a survey of the unit and a fixed quote for the work.
- The unit is shut down with your site team and the area protected.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- Drain trays are cleared and cleaned and the outlet checked.
- We close up the unit and send the certificate and before and after photos.
How to prepare
- Tell us the best time to work, such as after service or at a weekend
- Let us know how we reach the system, including roofs, risers and plant rooms
- Tell us where we can park and unload
How to get a quote
To get a fixed quote, phone us on 0345 646 2711 or send us an email 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 will typically have a quote within one working day.
Advice
Landlords, agents and facilities managers
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so each one has its own record.
Facilities teams in offices, schools and healthcare sites book us too across Greater London. Work can be phased by floor, building or site around the people who use them.
Between visits
Think of this as the after-treatment advice, in brief:
- Report musty smells from the vents straight away
- Clear leaves and litter away from the intake
- Look at the condensate drain whenever the unit is serviced
- Report stiff or damaged access doors
You receive a TR19® certificate and a photo report after the clean. They belong in the plant or maintenance log.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air instead of leaving it to guesswork.
Fixed quotes for AHU cleaning in Adelphi
Sites vary more than people expect. The main factors:
- Working hours and out-of-hours timing
- Access, including roofs, risers and ceiling voids
- The condition of the system
- The number of sites or systems
One small site or a whole estate, the quote is built the same way: the work involved, the access and the timing. You will have a fixed price before we start.
Helping us quote
Photos and a few facts are often enough to price the work. Send what you can of the following:
- Any access panels or hatches you can see
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Where the site is and what kind of site it is
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. Add the site type and your opening hours, and many jobs can be priced from that alone.
Common questions in Adelphi
Do you work at weekends in Adelphi?
Yes, out-of-hours work is a big part of what we do. The work in Adelphi can fit around your hours. When you call us on 0345 646 2711 or drop us a line, mention when the site is quiet.
Do you clean school ventilation in Adelphi in the holidays?
Yes, and it’s the easiest time to do it. Around Adelphi, the Food Standards Agency lists about 83 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.
Do you repair air handling units?
Mechanical repairs to the unit are for your HVAC maintenance contractor. We clean the unit and report anything we see that needs attention.
When should our AHU next be cleaned?
Inspection under TR19® Air decides it. A hard-working unit, or one serving a hospital or care home, may need cleaning more often.
What do you do with what you remove?
We take it away at the end of the visit. While we work, it’s kept contained so the area stays clean.
Can you clean the ducts connected to the AHU?
Yes, supply and extract ducts, grilles and diffusers. We will tell you after the survey whether the ducts need it.
Can we book visits on a schedule?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.
How much notice do you need?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and if it’s an emergency, call us any time.
Signs you need AHU cleaning in Adelphi
Planned maintenance often covers belts, motors and filters but not cleaning. So a unit can be well maintained and still dirty.
Look out for these warning signs:
- Air handling units never cleaned inside
- Odours coming through the supply air
- Dirty coils holding back the airflow
- Dust built up on fan impellers
School buildings such as St Clement Danes CofE Primary School are usually done in the holidays, so classrooms are not disturbed.
What to look for in a quote
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether they’re fully insured
- How areas they can’t reach will be recorded
- Whether they recommend a next date
AHU cleaning around Adelphi
Food Standards Agency records list about 83 schools, colleges and universities, about 47 caring premises (care homes, nurseries and hospitals) and about 243 hotels and guest houses registered as food businesses within about 1.5 miles of central Adelphi. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. For Adelphi, the closest hospital is Savoy Hospital, roughly within half a mile north-east. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital. Many London buildings have had their ductwork altered through several fit-outs, so an inspection comes first.
If you manage offices or shops near London Charing Cross station, their ventilation can be inspected and cleaned out of hours. If you run a surgery, dental practice or care home near Adelphi, clean ventilation matters as much to you as to a hospital like Savoy Hospital (about under half a mile north-east).
Adelphi is about 1 mile south-east of Marylebone, in Greater London. We carry out AHU cleaning for commercial premises of every kind in Adelphi and the rest of Greater London. Our Greater London coverage runs to 764 places, Adelphi among them.
Every address in W1D, W1F and WC2H is within our area for AHU cleaning, from the main roads to the quietest streets. We cover sites on York Road, Drury Lane and Maiden Lane and nearby roads. Adelphi is on the A301 and A400, so it’s easy for us to get to for out-of-hours visits. Other places close to Adelphi include Covent Garden (1 mile north), Charing Cross (1 mile south-west), Aldwych (1 mile north-east), Seven Dials (1 mile north-west) and West End (1 mile north-west). We also work in nearby towns such as 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).
Local landmarks in Adelphi
Typical jobs here are in premises near The BFI Reuben Library, St Andrew's and St John's Church of England Primary School and London Nautical School. You’ll also find Victoria Embankment Gardens (under half a mile south) and The Theodore Bullfrog pub (within half a mile south-west). Adelphi has its own railway station: London Charing Cross station. Well-known places in the area include London Museum and Institute of Natural History (less than half a mile north-east) and Montfichet's Tower (1 mile east). For a walk, there’s St. James's Park Lake and Barnsbury Wood.
What your team can do, and what needs us
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. Leave those to us.
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.