Greater London · Air handling unit cleaning
Air handling unit cleaning in Farringdon, Greater London
AHU cleaning for commercial sites in Farringdon and across Greater London. CHAS, SafeContractor and ISO 9001, and fully insured.
- Air handling units never cleaned inside
- Drain trays holding standing water
- Odours coming through the supply air
Landlords, agents and facilities managers
Keeping records across a portfolio is half the battle. Every visit ends with a dated report and pictures, ready to show insurers, fire officers or EHOs.
When the building owner and the occupier are different, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.
AHU cleaning in Farringdon
Where a building in Farringdon has had little more than filter changes, there may be dirt on the coils, fan and casing that nobody has looked at. A full AHU clean takes in the whole unit. The work covers internal panels, filter sections and supply and extract fans, and common reasons people get in touch are plant that needs cleaning after a refit and rooms that smell stuffy when the system runs.
In London, plant rooms are often in basements or on roofs reached through occupied floors, so work in Farringdon is often done in the evening or at weekends. Parking and loading are agreed with the building in advance.
Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Where
- Farringdon (EC1V, EC1R, EC1P)
- Region
- Greater London
- Paperwork
- Photo report after each visit
- Quotes
- A fixed price before work begins
- Working hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What happens if it’s left?
Stuffy rooms and stale smells in a building in Farringdon can sometimes be traced back to the AHU. Cleaning it deals with the cause rather than the symptom. In Farringdon, as across London, ductwork often passes through shared risers and other people’s space.
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 play a part.
What you get with us
- In business since 2009
- Accredited under CHAS and SafeContractor, with ISO 9001
- Fixed quotes, usually within one working day
- Every job surveyed first
Read our cost guide and how to check a contractor.
FAQs for Farringdon
Do you clean school ventilation in Farringdon in the holidays?
Yes. The holidays are the usual time for school work. Food Standards Agency records list about 82 schools, colleges and universities with registered kitchens within about a mile and a half of Farringdon. Tell us your holiday dates and we will book the visit for when the site is empty.
Can parking be tricky for a job in Farringdon?
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, normally makes it simpler.
What does AHU cleaning cost?
It depends on the site, so we quote each one individually. To get one, phone us on 0345 646 2711, or email photos with the site type, opening hours and a few pictures.
Do you have insurance?
Yes. Full insurance covers our work, and we’ve been trading since 2009.
How much notice should we give?
Book as early as you can for planned work, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.
Do you survey before quoting?
Yes. We always survey first, from your pictures and details, or with a visit where needed. Then you get a fixed quote.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line, for problems that cannot wait. Ring any time and tell us what’s happened.
Will the ventilation be off while you clean?
Yes. Cleaning needs the unit off and isolated, and we time the work to suit the site.
Keeping the system healthy
Aftercare is simple, and it makes the next visit easier:
- Stick to the filter change plan
- Don’t store bins or materials near the intake
- Keep inspection doors on the unit in good order
- Report musty smells from the vents right away
Once the clean is done, we send a TR19® certificate and a report with before and after pictures. They belong in the plant or maintenance log.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
Towns and villages near Farringdon
What else we do in Farringdon
What affects the quote in Farringdon
Sites vary more than people expect. The main factors:
- The size of the system
- Access, including roofs, risers and ceiling voids
- Site rules, permits and inductions
- Travel, parking and unloading
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered, and you will get one fixed quote.
Asking for a quote
Photos and a few facts are often enough to price the work. Useful things to send:
- How we’d reach plant on a roof or in a plant room
- Wide pictures of the system and the area around it
- Problems your staff have spotted
- When the site is open and when it’s quiet
Quotes are quick. Call or email with a few details and you will usually have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
Farringdon buildings and their air
Food Standards Agency records list about 82 schools, colleges and universities, about 71 hospitals, care homes and childcare premises and about 190 hotels and B&Bs registered as food businesses across Farringdon and its immediate surroundings (about a mile and a half). Buildings like these often rely on mechanical ventilation, which TR19® Air covers. In London, ventilation plant is often on the roof or below ground, so the work is usually done out of hours. For Farringdon, the closest hospital is Finsbury Health Centre, roughly less than half a mile 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 Farringdon station, a TR19® Air inspection shows whether the ductwork needs cleaning. For schools like Charterhouse Square School, the holidays are the usual time to inspect and clean ventilation. Healthcare ventilation, from large hospitals like Finsbury Health Centre (about under half a mile north-west) to small clinics, depends on clean filters, coils and ducts.
Farringdon is about 2 miles north of London, in Greater London. We provide AHU cleaning for businesses, landlords and public buildings in Farringdon and the rest of Greater London. 764 places in Greater London are on our list, from busy centres to quieter spots.
All of EC1V, EC1R and EC1P is within our area for AHU cleaning, from busy streets to back roads. AHU cleaning is available to premises on Oat Lane, Shoe Lane and Long Lane and nearby roads. You’ll find Farringdon on the A1 and A4, which makes it straightforward for our technicians to reach for out-of-hours visits. Close by, we work in Smithfield (1 mile south), Clerkenwell (1 mile north), Holborn (1 mile west), Blackfriars (1 mile south) and Temple Bar (1 mile south-west). Larger places within reach include Kensington (4 miles west), Walthamstow (6 miles north-east), Hampstead (4 miles north-west), Ruislip (14 miles west), Brompton (3 miles south-west) and Stockwell (4 miles south).
Local landmarks in Farringdon
Locally, jobs take us to businesses close to The Castle Public House, St Mary-at-Hill and Barts Health Archives. Nearby too are St Peter and St Paul RC Primary School (under half a mile north), Barbican Conservatory (less than half a mile east) and Central Foundation Boys' School (0.8 miles east). Farringdon has its own railway station: Farringdon station. Other landmarks nearby include Museum of the Order of St John (within half a mile north-east) and Gabriel's Wharf (0.9 miles south). Not far away are Ludgate Hill and Barnsbury Wood.
Staff cleaning versus specialist work
Keep a record of what your team does. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, alongside our reports.
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but the parts you can’t see still need a specialist at the right interval.
Part by part
Internal casing and panels
Access doors and panels are opened in turn and closed properly afterwards, and check every one is shut.
Drain trays
A tray that doesn’t drain becomes a pool of stagnant water in the airstream. We clean it and note if the slope or the drain needs attention.
How it works
Our technicians bring everything the work needs, from protective sheeting to tools and access equipment. You only need to give us clear access and switch off what needs to be off. The visit takes one overnight shift for many single units, with bigger plant phased. Expect the work in Farringdon to happen after your last customer leaves, not during trading.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- We take after photos and issue the certificate and report.
How to prepare
- Let us know about permits to work or site inductions
- Mention any parking or loading restrictions
- Clear loose items from the work area
Getting a quote
For a fixed quote, call us on 0345 646 2711 or use the quote form and tell us the type of site, your opening hours and roughly what the system looks like. A few photos and your last certificate or report help a lot. We typically come back within one working day.