Greater London · Air handling unit cleaning
Air handling unit cleaning in Penge, Greater London
Our technicians work in Penge on cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Out-of-hours visits, a fixed quote and a written report with pictures as standard.
- Dust built up on fan impellers
- Odours coming through the supply air
- Dust-coated heating and cooling coils
For landlords and multi-site operators
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we are happy to quote for all of it.
AHU cleaning in Penge
Where a building in Penge has had little more than filter changes, there may be dirt on the coils, fan and casing that nobody has looked at. A full clean deals with all of it. Common call-outs are for stale or musty smells from the ventilation and air handling units due a clean after building work, across internal panels, supply and extract fans and drain trays.
London offices and flats often have ductwork added through successive refits, with old runs left behind that are hard to reach. An inspection first shows where cleaning is needed in a building in Penge.
Insurers, fire officers and environmental health officers all look at records. That’s 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.
- Location
- Penge (SE20, SE19, SE26)
- Wider area
- Greater London
- Reporting
- Report and pictures after the visit
- Price
- Fixed quote, normally within a working day
- Working hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Between visits
Results last longer with the right care. We suggest:
- Make sure the unit’s access doors open easily
- Clear leaves and litter away from the intake
- Watch for drips or damp patches near the plant
- File each AHU report in the maintenance log
We recommend when the unit should next be inspected or cleaned, taking into account how dirty it was. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Keep the unit’s doors and panels in working order. Sections that are awkward to open are the ones that get skipped.
What affects the quote in Penge
Some jobs are bigger than they look, and some smaller. The main factors:
- The condition of the system
- The number of sites or systems
- The times the site is available
- Any permits to work or inductions
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 play a part.
What to send for a quote
A few details help us quote accurately. With your enquiry, please include:
- Any previous report or certificate
- Detail shots of panels, filters and grilles
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- The roof, plant room or outside wall the system runs to
There’s no standard price list, because every site is different. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To get going, ring 0345 646 2711, or email photos.
When it’s something else
A few issues sit outside what this work can do:
- Ventilation that was badly designed in the first place
- Leaking heating or cooling coils
- Dirty ducts beyond the unit itself
Not sure which it is? You can call 0345 646 2711 or send us an email and we will tell you honestly before booking.
What we work on in Penge
- Filter sections
- Dampers and louvres
- Heating and cooling coils
- Drain trays
- Supply and extract fans
- Internal panels
More services for Penge
In-house cleaning or a specialist?
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
Ventilation in Penge buildings
Going by the FSA’s register, there are about 29 schools, colleges and universities, about 83 caring premises (care homes, nurseries and hospitals) and about 6 hotels and guest houses serving food within roughly a mile and a half of the centre of Penge. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. The nearest hospital to Penge is St Christopher's Hospice, about 0.5 miles north. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital. London plant rooms are often on roofs or in basements reached through occupied floors.
Healthcare ventilation, from large hospitals like St Christopher's Hospice (about 0.5 miles north) to small clinics, depends on clean filters, coils and ducts. If you manage shops or offices close to Penge West station, a TR19® Air inspection shows whether the ductwork needs cleaning.
Penge is about 1 mile west of Beckenham, in Greater London. If you need AHU cleaning in Penge, please phone us on 0345 646 2711, or email photos for a fixed quote. We work across South East England and London, including Penge. We cover 764 places across Greater London, from busy centres to quieter spots. Our London page covers sites nearby (6 miles or so).
Work in SE20, SE19 and SE26 is surveyed, quoted and booked the same way as anywhere else. We cover sites on High Street, Anerley Station Road and Station Road and the roads around them. You’ll find Penge on the A234, which makes it straightforward for our technicians to reach for AHU cleaning. Close by, we work in Anerley (1 mile west), Crystal Palace (1 mile north-west), Sydenham (1 mile north), Gipsy Hill (1 mile north-west) and Upper Norwood (1 mile west). We also work in nearby towns such as London (6 miles north), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (8 miles north-west), St Pancras (8 miles north) and Shoreditch (8 miles north).
What’s near Penge
We work in commercial kitchens and buildings around Crystal Palace School, Crooked Billet pub and Crystal Palace Dinosaurs, among other places. There’s a railway station in Penge itself: Penge West station. Nearby you’ll also find St Christopher's Hospice (0.5 miles north) and Crystal Palace Museum (0.8 miles north-west). Not far away are Dulwich Upper Wood and Knight's Hill.
What we are called out for in Penge
Cooling coils create condensation, and that water has to go somewhere. If the drain tray outlet blocks or the tray does not fall properly, water stands in it, and slime and smells soon follow.
It’s time to book a visit if you see:
- Fan sections that haven’t been cleaned in years
- Air handling units due a clean after building work
- Debris and leaves in the fresh air intake
- Odours coming through the supply air
If you manage a school such as Harris Primary Academy Crystal Palace, ventilation cleaning is best booked for the holidays.
Questions to ask before booking
- When the next visit should be, and why
- If they look at the system before pricing
- What insurance they carry
- What paperwork you get at the end
Questions from Penge
Do you work at weekends in Penge?
Yes, nights and weekends are routine for us. Your customers, staff or residents in Penge needn’t be disturbed. When you give us a ring on 0345 646 2711 or drop us a line, mention when the site is quiet.
Can parking be tricky for a job in Penge?
Tell us where a van can stop near your site in Penge, and about any building rules on loading. Working overnight, as we often do in London, typically makes it simpler.
How often do AHUs need cleaning?
TR19® Air takes a risk-based approach, so it depends on inspection rather than a fixed interval. We recommend a next date in each report.
What should I send you?
Where the site is, what it is and when it’s open, along with a few pictures and any previous report.
What’s TR19?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It covers how systems are inspected, cleaned and checked and expects a risk-based approach.
Does the AHU have to be shut down for cleaning?
Yes. We can’t clean a running unit, so it’s switched off and made safe first. We agree the timing with your site team.
Is a quote from pictures possible?
Yes, if we can see what we need. If not, a site survey comes first, and the quote follows that.
Is there a survey before the work?
Yes. We always survey first, from your pictures and details, or with a visit where necessary. Then you get a fixed quote.
How the visit works
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that is 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. Many London buildings have a managing agent, a security desk or a permit-to-work system, so tell us who to contact in Penge.
- First the unit is surveyed, from pictures or a visit, and the scope agreed.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Drain trays are cleared and cleaned and the outlet checked.
- A TR19® certificate and photo report follow the clean.
Getting ready for the visit
- Make sure equipment near the work can be switched off and left to cool
- Tell us the best time to work, such as after service or at a weekend
- Have your last certificate or report to hand
Getting a quote
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before any work starts.