Greater London · Air handling unit cleaning
Air handling unit cleaning in Green Street Green, Greater London
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for businesses, landlords and public buildings in Green Street Green. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Dirty coils holding back the airflow
- Intake sections clogged with outdoor debris
- Units needing a clean before a new tenant or handover
Green Street Green: your questions answered
What do you need to know about parking in Green Street Green?
Tell us where a van can stop near your site in Green Street Green, and about any building rules on loading. Much of our London work is done overnight, which helps.
Can ventilation in schools around Green Street Green be cleaned out of term?
Yes, and it’s the easiest time to do it. With about 7 schools and colleges on the FSA’s register within roughly a mile and a half of Green Street Green, it pays to plan holiday dates ahead. Send us your term dates when you call us on 0345 646 2711 or send us an email, and we’ll fit the work in.
When should our AHU next be cleaned?
There’s no single answer; it comes down to the building and the unit. Regular inspection shows when it’s due, and we’ll suggest an interval after the first clean.
What should I send you?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. Then call 0345 646 2711, or send details by email.
What’s included in an AHU clean?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. Filters are cleaned or changed as agreed in the quote.
Where does the waste go?
Waste is contained during the work and removed when we leave, from grease and debris to used cleaning water. None of it is left on site.
Do you offer emergency callouts?
Yes, day and night, every day of the year. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
Is there a report after cleaning?
Yes, a TR19® certificate and a photo report. The report also suggests when the unit should next be inspected.
About our AHU cleaning in Green Street Green
If the units serving a building in Green Street Green have only had filter changes for years, there may be dirt on the coils, fan and casing that nobody has looked at. A full AHU clean takes in the whole unit. If you have dirty coils holding back the airflow and fan sections that haven’t been cleaned in years, we can put it right.
London buildings often depend on air handling units in plant rooms or on the roof to supply fresh air. In a building in Green Street Green, dust and debris build up in the units and ductwork over time, which is what TR19® Air cleaning deals with.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we are fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Place
- Green Street Green (BR6)
- Wider area
- Greater London
- Paperwork
- Written report with photos
- Price
- A fixed price before any work starts
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Why deal with it now?
Cleaning a unit while it only has light dust is quick. Years of build-up make the job longer and harder, especially where there’s been moisture. Choosing the date yourself beats having a fault choose it for you.
What you pay reflects the actual work. That is why every job is surveyed first, and why the quote is fixed before any work starts.
What you get with us
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Accredited under CHAS and SafeContractor, with ISO 9001
- One contact for all your sites in London and the South East
- Evenings, overnight and weekends, plus 24/7 emergency callout
Take a look at what affects the cost and our accreditations and certificates.
Managing agents and facilities teams in Green Street Green
Records are where multi-site compliance often slips. Each visit produces a dated report with photos, ready to show insurers, fire officers or EHOs.
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Every building has its own written report, so each one has its own record.
What affects the quote in Green Street Green
The diagnosis comes before the price. The main factors are:
- Whether we need access equipment or extra panels
- Parking and loading at the site
- When the work can happen, such as evenings, overnight or weekends
- Site requirements such as sign-in and permits
You won’t find a price list here, because the cost depends on the site in front of us. For a fixed quote, ring 0345 646 2711, or email photos, and we will talk you through it.
Asking for a quote
What to send for a quote:
- Your opening hours and when the area is out of use
- Any previous report or certificate
- The roof, plant room or outside wall the system runs to
- Any access panels or hatches you can see
Quotes are quick. Send a few details and photos, and we normally reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Places near Green Street Green
Other services in Green Street Green
When to call us in Green Street Green
Mechanical servicing keeps a unit running, but it does not always include cleaning the inside. That means a unit can tick every service box and still be carrying years of dirt.
It’s time to book a visit if you see:
- Air handling units due a clean after building work
- Stale or musty smells from the ventilation
- Condensate trays that will not empty
- Intake sections clogged with outdoor debris
For schools like Green Street Green Primary School, the holidays are the usual time to inspect and clean ventilation.
Comparing quotes
- If they look at the system before pricing
- What happens if part of the system can’t be accessed
- Whether they’re fully insured
- What hours they’ll be on site
Green Street Green buildings and their air
The FSA’s food hygiene register lists about 7 schools, colleges and universities and about 9 care, childcare and hospital premises with registered kitchens or food service within 1.5 miles or so of the middle of Green Street Green. Busy, occupied buildings like these are where clean supply air matters most. In London, ventilation plant is often on the roof or below ground, so the work is typically done out of hours. For Green Street Green, the closest hospital is Orpington Hospital, roughly 0.8 miles north-east. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
If you manage shops or offices close to Chelsfield station, a TR19® Air inspection shows whether the ductwork needs cleaning. Hospitals such as Orpington Hospital (about 0.8 miles north-east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Green Street Green are no different.
Green Street Green is about 2 miles south of Orpington, in Greater London. Whatever kind of site you run in Green Street Green, we can take on AHU cleaning. We can work out of hours so trading is not interrupted. Our area takes in 764 places across Greater London, from busy centres to quieter spots. For sites nearby, see our London page, about 13 miles away.
Every address in BR6 is within our area for AHU cleaning, from busy streets to back roads. Streets in the area include Vine Road, Laxey Road and Shire Lane, all of which we cover for AHU cleaning. If your site is just outside Green Street Green, we cover Farnborough (1 mile north-west), Hazelwood (1 mile south-west), Crofton (2 miles north), Downe (2 miles south-west) and Farthing Street (2 miles west). Within a short drive, we also cover London (13 miles north-west), City of Westminster (15 miles north-west), Marylebone (15 miles north-west), St Pancras (15 miles north-west), Shoreditch (14 miles north-west) and Hoxton (15 miles north-west).
Around Green Street Green
Locally, jobs take us to businesses close to Queens Head pub and Hewitt's Chalk Bank and the streets around them. The nearest railway station is Chelsfield station, about 0.9 miles east of the centre. A little further out are Orpington Hospital (0.8 miles north-east) and Crofton Roman Villa (1.5 miles north). Open spaces near Green Street Green include Summer Hill and Downe Bank Nature Reserve.
Staff cleaning versus specialist work
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.
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.
What a clean won’t put right
In fairness, some problems need a different fix:
- Problems with the unit’s controls or sensors
- Leaking heating or cooling coils
- Mechanical faults with motors, belts or bearings
Not sure which it is? You can phone us on 0345 646 2711 or use the quote form and we will tell you honestly.
What we work on in Green Street Green
- Supply and extract fans
- Filter sections
- Internal panels
- Dampers and louvres
- Heating and cooling coils
- Drain trays
What we do, step by step
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. On site, the work takes half a day to a full day per unit, with large plant planned over several shifts. If your building in Green Street Green has sign-in rules, permits or key holders, mention them when you book.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
Preparing for the visit
- Allow time for equipment near the work to be turned off and cool down
- Arrange a key holder or contact on site
- Let us know about parking and loading
Getting a quote
Here’s what helps us quote: where the site is, what it is and its opening hours, a few photos and the last certificate or report, if there is one. Then phone us on 0345 646 2711, or send details by email.