Greater London · Air handling unit cleaning
Air handling unit cleaning in Old Town, Greater London
One call covers air handling unit cleaning in Old Town, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Dust-coated heating and cooling coils
- Blocked condensate drains and slimy trays
- Filters that are clogged or overdue
How we handle AHU cleaning in Old Town
Every supply and extract system relies on the air handling unit at its centre: it draws air in, filters it, heats or cools it and pushes it round the ductwork. Whatever builds up inside it travels with that air, which is why we clean the unit itself, not just the ducts. If you are dealing with plant that needs cleaning after a refit and coils clogged with dust and debris, we can help, from supply and extract fans, dampers and louvres and internal panels onwards.
In London, plant rooms are often in basements or on roofs reached through occupied floors, so ventilation cleaning in Old Town is usually planned out of hours. Parking and loading are agreed with the building in advance.
Accreditations are easy to claim and worth checking. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Location
- Old Town (CR0, CR9, CR90)
- Region
- Greater London
- Paperwork
- Written report with photos
- Quotes
- A fixed price before any work starts
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Multi-site and managed buildings
We regularly work with managing agents. Send the address, what’s needed and how access works, and we will send a fixed quote.
Keeping records across a portfolio is half the battle. Every visit ends with a dated report and photos, so you can show an insurer or inspector what was done at each site.
Old Town questions
Does London parking affect a job in Old Town?
We plan it in advance, so let us know about loading bays, permits and access rules at the building. Night visits tend to make loading easier on London streets.
Can ventilation in schools around Old Town be cleaned out of term?
Yes. The holidays are the usual time for school work. With about 42 schools and colleges on the FSA’s register within roughly a mile and a half of Old Town, it pays to plan holiday dates ahead. Send us your term dates when you give us a ring on 0345 646 2711 or email us, and we will fit the work in.
Do you repair air handling units?
Our AHU work is cleaning rather than mechanical repair. Any faults we notice are recorded for your maintenance team to follow up.
How much notice do you need?
The more notice, the better, particularly for night and weekend visits. Quotes usually come back within one working day, and emergencies are covered by our 24/7 line.
What if parts of the system can’t be reached?
Anything we can’t reach goes on the report, with photos where possible, and we explain what access is needed, for example new access panels.
Do you cover Old Town?
Yes. We work in Old Town and the rest of Greater London, within our South East and London area. To book, call 0345 646 2711, or send details by email.
Which sectors do you work in?
Commercial premises of every kind: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.
Do you need to switch the unit off?
Yes, while the clean is under way. We can work evenings, overnight or at weekends so the building is not left without ventilation when it’s busy.
AHU cleaning in Old Town: local notes
Going by the FSA’s register, there are about 42 schools, colleges and universities, about 133 care, childcare and hospital premises and about 20 hotels and guest houses serving food in and around Old Town, up to about a mile and a half out. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. Old Town’s nearest hospital, Croydon University Hospital, is about 1.2 miles north. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. Getting kit to a London plant room usually means lifts, stairs and an agreed loading slot.
If you run a surgery, dental practice or care home near Old Town, clean ventilation matters as much to you as to a hospital like Croydon University Hospital (about 1.2 miles north). For schools like The Minster Nursery and Infant School, the holidays are the usual time to inspect and clean ventilation.
Old Town is about 1 mile north-west of Croydon, in Greater London. Sites in Old Town get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with pictures. Across Greater London, we cover 764 places, and Old Town is one of them. We also work in London, about 9 miles from Old Town.
Work in CR0, CR9 and CR90 follows the same survey, fixed quote and written report as everywhere else we cover. AHU cleaning is available to premises on Park Lane, Fell Road and Abbey Road and the roads around them. We also cover Waddon (1 mile south-west), Broad Green (1 mile north), Beddington (1 mile west), Bandonhill (1 mile south-west) and Russell Hill (2 miles south-west). We also work in nearby towns such as London (9 miles north), City of Westminster (10 miles north), Marylebone (10 miles north), Kensington (10 miles north-west), St Pancras (11 miles north) and Shoreditch (11 miles north).
What’s near Old Town
In Old Town, that means kitchens and buildings near Rutherford School, The Gun Tavern and St Andrew's CofE School and the streets around them. There’s a railway station in Old Town itself: West Croydon station. A little further out are Croydon University Hospital (1.2 miles north) and Croydon Airport Visitor Centre (1.3 miles south-west). Not far away are Roundshaw Downs and Duppas Hill.
What happens if it’s left?
A clean unit feeds cleaner air into the ductwork, so the ducts and grilles stay cleaner between cleans. That makes the next inspection of a building in Old Town simpler. Choosing the date yourself beats having a fault choose it for you.
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, which can make the next visit longer. If you’re not sure what’s needed, call us on 0345 646 2711 or use the quote form for straight advice and a fixed quote.
Why Old Town businesses choose us
- We diagnose before we treat
- Trading since 2009
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- We are fully insured
In-house cleaning or a specialist?
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Between visits
Think of this as the after-treatment advice, in brief:
- Make sure condensate is draining away
- Store the TR19 paperwork where auditors can find it
- Stick to the filter change plan
- Book the next check in line with the report
Keep filter changes on schedule between cleans, as that does more than anything to keep the unit clean. Log every change so it’s easy to see when the next is due.
Regular inspection under TR19® Air shows when cleaning is due, rather than waiting for a problem.
Also near Old Town
Other services in Old Town
When something else is needed
A few issues sit outside what this work can do:
- Leaking heating or cooling coils
- The supply and extract ducts, quoted separately
- Controls and BMS settings that run the unit
Not sure which it is? You can phone us on 0345 646 2711 or use the quote form and we will tell you honestly before booking.
Where we work
- Drain trays
- Dampers and louvres
- Heating and cooling coils
- Supply and extract fans
- Internal panels
- Filter sections
Do you need AHU cleaning in Old Town?
Filters that aren’t changed or cleaned on time clog up, cutting airflow and sometimes letting dirty air bypass them altogether. Then the rest of the unit takes the load.
Signs it’s time to call us include:
- Debris and leaves in the fresh air intake
- Dirty filters cutting the airflow
- Stale or musty smells from the ventilation
- Dust built up on fan impellers
For workplaces around West Croydon station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Questions to ask before booking
- When the next visit should be, and why
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- What hours they’ll be on site
- How areas they cannot reach will be recorded
What we do, step by step
The first job on site is protection: floors, worktops and anything near the work are covered. Then we make the system safe and start. It takes one overnight shift for many single units, with bigger plant phased, and the area is cleaned down before we leave. Most London sites cannot stop for the day, so work in Old Town is typically done overnight, early in the morning or at weekends.
- We start with a survey of the unit and a fixed quote for the work.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Standing water and slime come out of the tray and the drain is checked.
- A TR19® certificate and photo report follow the clean.
Before we arrive
- Plan for cooking equipment or plant to be off before we arrive
- Find the previous report, if there is one
- Mention any locked doors, roof access or ceiling voids
Getting a quote
To help us quote: where the site is, what it is and its opening hours, a few pictures and any previous report or certificate. Then call us on 0345 646 2711 or use the quote form.