Greater London · Air handling unit cleaning
Air handling unit cleaning in Purley, Greater London
Professional AHU cleaning in and around Purley, booked around your opening hours and finished with a written report and photos.
- Dirty filters cutting the airflow
- Units that have only ever had filter changes
- Fan sections that haven’t been cleaned in years
What happens on the day
At the end of the visit, someone from your team can look over the work with us. Anything we couldn’t reach or that needs attention is pointed out there and then, and it goes on the report too. The visit takes anything from half a day for one small unit to several shifts for a plant room full of them. Getting kit into a London building takes planning, so let us know where we can load and park in Purley.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- The unit is shut down with your site team and the area protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Drain trays are cleared and cleaned and the outlet checked.
- We close up the unit and send the certificate and before and after pictures.
Before we arrive
- Mention any locked doors, roof access or ceiling voids
- Tell us the best time to work, such as after service or at a weekend
- Make sure someone can let us in and lock up afterwards
How to get a quote
If you need AHU cleaning in Purley, give us a ring on 0345 646 2711 or send us an email. Tell us what kind of premises it is and when it’s open, and send pictures or your last report if you can. A fixed quote normally follows within one working day.
Related advice
How we handle AHU cleaning in Purley
If the units serving a building in Purley have only had filter changes for years, there may be dirt on the coils, fan and casing that nobody has looked at. A full clean deals with all of it. The work covers drain trays, internal panels and dampers and louvres, and common reasons people get in touch are coils clogged with dust and debris and stale or musty smells from the ventilation.
Across London, offices, hotels, schools and healthcare buildings rely on mechanical ventilation, much of it supplied through air handling units on roofs or in basements. For a building in Purley, dust settles in the units and ducts year after year.
For insurers and inspectors, the record counts. So every job comes with a written report and pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Location
- Purley (CR8, CR2, CR5)
- Wider area
- Greater London
- Reporting
- Report and photos after the visit
- Quotes
- A fixed quote up front
- Working hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Updated
- 30 October 2026
When to call us in Purley
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. Most of it lands at the intake and the first stage of filters, and the finer material travels on.
The symptoms we’re asked about most are:
- Odours coming through the supply air
- Condensate trays that won’t empty
- Filters that are clogged or overdue
- Units needing a clean before a new tenant or handover
Wherever a school like Christ Church CofE Primary School (Purley) has ducted ventilation, a half-term visit keeps the work out of lesson time.
Comparing quotes
- Whether the quote shows VAT
- How they set the interval to the next visit
- Whether inaccessible sections are listed on the report
- Whether the figure could change on the day
Leave it or put it right?
If people in a building in Purley complain about stuffy or smelly air, the AHU is worth looking at. Cleaning it deals with the cause rather than the symptom. A building in Purley may have flats or offices above and alongside, and a fault in the system can affect them too.
You won’t find a price list here, because each job is priced on what it involves. For a fixed quote, phone us on 0345 646 2711 or drop us a line, and we’ll talk you through it.
What you get with us
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Photo reports with every job
- Ventilation hygiene specialists since 2009
- CHAS and SafeContractor accredited, with ISO 9001
Staff cleaning versus specialist work
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but they don’t reach the grease that builds up further in. That part needs specialist access and equipment.
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
Ventilation in Purley buildings
There are about 17 schools, colleges and universities, about 68 caring premises (care homes, nurseries and hospitals) and about 3 hotels and guest houses on the FSA’s food hygiene register in Purley and the streets around it, up to about 1.5 miles out. Busy, occupied buildings like these are where clean supply air matters most. Getting kit to a London plant room normally means lifts, stairs and an agreed loading slot. The nearest hospital to Purley is Purley War Memorial Hospital, about under half a mile north-east. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
If you manage shops or offices close to Purley station, a TR19® Air inspection shows whether the ductwork needs cleaning. Hospitals such as Purley War Memorial Hospital (about under half a mile north-east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Purley are no different.
Purley is about 2 miles south-west of Croydon, in Greater London. Whatever kind of site you run in Purley, we can take on AHU cleaning. We can work out of hours so trading is not interrupted. 764 places in Greater London are on our list, from busy centres to quieter spots. There’s also a page for London, roughly 11 miles from Purley.
Our technicians cover all of CR8, CR2 and CR5 for AHU cleaning and the roads nearby. Whether your site is on High Street, Church Road and Brighton Road or anywhere close by, we can help. Being close to the A2022, Purley is easy for our technicians to reach at any hour. Neighbouring places we cover for AHU cleaning include Peaks Hill (1 mile north-west), Woodcote (1 mile west), Russell Hill (1 mile north), Roundshaw (1 mile north-west) and Woodcote Green (1 mile west). Further out, we also cover London (11 miles north), City of Westminster (12 miles north), Marylebone (13 miles north), Kensington (12 miles north), St Pancras (13 miles north) and Shoreditch (13 miles north).
Near you in Purley
In Purley, that means kitchens and buildings near The Jolly Farmers pub, Laleham Lea School and Thomas More Catholic School and the streets around them. There’s a railway station in Purley itself: Purley station. Nearby you will also find Purley War Memorial Hospital (less than half a mile north-east) and St George's Walk (2.7 miles north). Open spaces near Purley include Duppas Hill and Foxley Wood.
Places near Purley
Also in Purley
How we price AHU cleaning
Before we fix a price, we need to know a few things. We check:
- Where the site is and how we reach it
- A single visit or a regular plan
- Access, including roofs, risers and ceiling voids
- The condition of the system
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we’ll go through it with you.
Helping us quote
Photos and a few facts are often enough to price the work. Useful things to send:
- 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
- Any symptoms, from odd noises to smells or leaks
- The postcode and the type of business
Quotes are quick. Send a few details and pictures, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Questions from Purley
Can ventilation in schools around Purley be cleaned out of term?
Yes, and it’s the easiest time to do it. Food Standards Agency records list about 17 schools, colleges and universities with registered kitchens within about a mile and a half of Purley. You can call us on 0345 646 2711, or email photos with the dates the site is empty.
Can you work in Purley outside opening hours?
Yes, out-of-hours work is a big part of what we do. It means the site in Purley keeps running as normal. Just call us on 0345 646 2711 or drop us a line with your opening times and we will plan around them.
Do you repair air handling units?
We clean the unit and flag faults rather than repair them, with the details in the report.
Can we book visits on a schedule?
Yes. Scheduled maintenance plans are part of what we do, with visits at the interval your system needs. The report from each visit recommends the next date.
Do you survey before quoting?
Yes. Photos often do the job, while bigger or harder-to-see systems are surveyed on site.
Is Purley in your area?
Yes. We work in Purley and the rest of Greater London, as part of our work across South East England and London. For a fixed quote, call us on 0345 646 2711, or email photos.
Can you come out in an emergency?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, with the emergency line covering every other hour.
Can you clean the ducts connected to the AHU?
Yes. Ventilation ductwork cleaning to TR19® Air is part of what we do. Cleaning the unit and ducts together often makes sense, and we can quote for both.
Managing agents and facilities teams in Purley
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 the report can go to both.
Multi-site operators often want one contractor and one number. We work across London and the South East, so visits at different addresses can be planned together and kept to a regular schedule.
Keeping the system healthy
Think of this as the after-treatment advice, in brief:
- Watch for drips or damp patches near the plant
- Report musty smells from the vents right away
- Change filters on schedule and log each change
- Diary the inspection date recommended in the report
We recommend when the unit should next be inspected or cleaned, based on what we found. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Check drain trays and condensate drains during routine maintenance. Catching a slow drain early stops standing water building up.