Greater London · Air handling unit cleaning
Air handling unit cleaning in Shirley, Greater London
Specialist AHU cleaning for Shirley: diagnosis first, then a fixed quote, the work and a report with pictures. Ask us for a fixed quote.
- Plant that has been serviced but not cleaned
- Air handling units due a clean after building work
- Dirty coils holding back the airflow
Shirley questions
Can ventilation in schools around Shirley be cleaned out of term?
Yes. The holidays are the usual time for school work. There are about 14 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Shirley. You can ring 0345 646 2711, or email photos with the dates the site is empty.
Do you work overnight in Shirley?
Yes. We work evenings, overnight and at weekends. It means the site in Shirley keeps running as normal. Your opening times are the first thing we ask for.
What about areas you cannot get to?
We record them on the report, with pictures where possible, and we tell you what would make it reachable, such as extra access panels in ductwork.
What do you do with what you remove?
It’s contained and taken away. Grease, debris and waste water are collected as the work goes on, so it does not spread.
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.
How often do AHUs need cleaning?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. We recommend a next date in each report.
Which accreditations do you hold?
Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
Can you clean the ducts connected to the AHU?
Yes. Ductwork is cleaned through access panels, and any sections we can’t reach are noted in the report, with new panels fitted where needed.
AHU cleaning for kitchens and businesses in Shirley
Our AHU cleaning covers sites in Shirley and the rest of Greater London, in offices, schools, hospitals, care homes and retail. Units are cleaned when the site can spare them, often evenings, overnight or weekends. Common call-outs are for debris and leaves in the fresh air intake and dust built up on fan impellers, across drain trays, dampers and louvres and internal panels.
London offices and flats often have ductwork added through successive refits, leaving sections that are hard to reach and seldom cleaned. In Shirley, as elsewhere, cleaning starts with an inspection of what’s there.
Think of the report as the system’s health record: a dated account with photos of everything we did. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Place
- Shirley (CR0, SE25, CR9)
- Wider area
- Greater London
- Reporting
- Written report with photos
- Quotes
- A fixed quote up front
- Working hours
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
Do you need AHU cleaning in Shirley?
Filters that aren’t changed or cleaned on time clog up, which cuts the airflow and can let air slip round the filter. Then the rest of the unit takes the load.
What we’re most often called out for:
- Debris and leaves in the fresh air intake
- Dirty fans and fan housings
- Units needing a clean before a new tenant or handover
- Drain trays holding standing water
School buildings such as Oasis Academy Shirley Park are normally done in the holidays, so classrooms aren’t disturbed.
What to look for in a quote
- What records you will receive afterwards
- Whether the price is fixed
- Whether the whole system is included, or only the parts that are easy to reach
- What insurance they carry
AHU cleaning around Shirley
Going by the FSA’s register, there are about 14 schools, colleges and universities and about 54 caring premises (care homes, nurseries and hospitals) serving food within roughly a mile and a half of the centre of Shirley. Busy, occupied buildings like these are where clean supply air matters most. For Shirley, the closest hospital is National Psychosis Unit, roughly 1 mile east. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. Many London buildings have had their ductwork altered through several fit-outs, so an inspection comes first.
If you run a surgery, dental practice or care home near Shirley, clean ventilation matters as much to you as to a hospital like National Psychosis Unit (about 1 mile east).
Shirley is about 2 miles north-east of Croydon, in Greater London. From the centre of Shirley to the outskirts, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. We cover 764 places across Greater London, large and small. We also work in London, about 8 miles from Shirley.
Here we cover the CR0, SE25 and CR9 postcode area for AHU cleaning. Local streets include Poppy Lane, Homer Road and Craven Road, all of which we cover for AHU cleaning. Shirley is on the A232, so it’s easy for us to get to for out-of-hours visits. We also cover Monks Orchard (1 mile north), Shirley Oaks (1 mile west), Addiscombe (1 mile west), Ashburton (1 mile north-west) and Woodside (1 mile north-west). Further out, we also cover London (8 miles north), City of Westminster (10 miles north-west), Marylebone (10 miles north-west), Kensington (10 miles north-west), St Pancras (10 miles north) and Shoreditch (10 miles north).
Near you in Shirley
In Shirley, that means kitchens and buildings near The Cricketers pub, Ashburton Park and Orchard Way Primary School and the streets around them. Shirley’s nearest station is Elmers End station, about 1.2 miles north. Nearby you’ll also find Crystal Palace Museum (2.8 miles north) and St George's Walk (2 miles west). Open spaces near Shirley include Duppas Hill and Bramley Bank.
What your team can do, and what needs us
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
In-house cleaning and specialist cleaning do different jobs. 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. Reaching it takes a specialist with the right equipment.
What affects the quote in Shirley
The diagnosis comes before the price. The main factors are:
- Any permits to work or inductions
- The times the site is available
- One-off work versus a regular cycle
- The scale of the work
Working hours, access and the scale of the site can all change the price. We take each of them into account and give you a fixed price before work begins.
What we need to know
A few details help us quote accurately. When you get in touch, it helps to send:
- Any access panels or hatches you can see
- The roof, plant room or outside wall the system runs to
- The postcode and the type of business
- A few general shots of the system
Want a quote for AHU cleaning? Please give us a ring on 0345 646 2711 or drop us a line with a few details about the site. We will explain what we’d do and send a fixed quote before you commit to anything.
Managing agents and facilities teams in Shirley
We also work for facilities teams across offices, schools and healthcare across Greater London. Work can be phased by floor, building or site to keep disruption down.
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We are happy to deal with either side and send the paperwork to whoever needs it.
What happens on the day
When we arrive, we check the system against the survey or the pictures you sent. Anything unexpected is raised with you before we go further. After that, the work takes from a few hours for a compact unit to a day or more for a large one. Expect the work in Shirley 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.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- We take after pictures and issue the certificate and report.
Before we arrive
- Tell us where we can park and unload
- Dig out any earlier paperwork for the system
- Clear loose items from the work area
Get a fixed quote
To get a fixed quote, call us on 0345 646 2711 or drop us a line and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. We normally come back within one working day.
Advice
What happens if it’s left?
A slimy drain tray only gets worse. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Clearing it now is a much smaller job. For a site in Shirley, fitting the work in overnight now is far easier than closing at short notice later.
We do not list prices on the website, because each job is priced on what it involves. For a fixed quote, call 0345 646 2711, or send details by email, and we’ll explain what it covers.
Why us?
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- A written report with photos after each visit
- Work around your opening hours, with 24/7 emergency cover
- Accredited under CHAS and SafeContractor, with ISO 9001
Read our cost guide and our accreditations.
Aftercare tips
After the visit, a few habits help the work last:
- Stick to the filter change plan
- Don’t store bins or materials near the intake
- Flag stale or damp smells in the supply air
- File each AHU report in the maintenance log
Stick to the filter change schedule, because good filters protect everything downstream. Record each change in the maintenance log.
Check drain trays and condensate drains during routine maintenance. Catching a slow drain early stops standing water building up.