Greater London · Air handling unit cleaning
Selhurst AHU cleaning
AHU cleaning for Selhurst, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Dust built up on fan impellers
- Leaves and litter drawn into the unit
- Air handling units with blocked filters
AHU cleaning for kitchens and businesses in Selhurst
Drain trays under cooling coils are meant to empty. If the outlet blocks, standing water and slime build up, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. We’re often asked to deal with rooms that smell stuffy when the system runs and leaves and litter drawn into the unit, across drain trays, supply and extract fans and heating and cooling coils.
London offices and flats often have ductwork added through successive refits, leaving sections that are hard to reach and seldom cleaned. In Selhurst, as elsewhere, cleaning starts with an inspection of what’s there.
Every visit ends with a written report and pictures, so there’s a dated record of the work. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Where
- Selhurst (SE25, SE20, CR0)
- Wider area
- Greater London
- Records
- Written report with pictures
- Price
- A fixed price before we start
- When we work
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
Looking after it afterwards
Here’s the after-treatment advice, in brief:
- Keep filter changes on time and recorded
- Store the TR19 paperwork where auditors can find it
- Check the drain tray is emptying during routine visits
- Note any water around the unit or leaks below it
If the ductwork hasn’t been cleaned, consider it next. Cleaning the unit and ducts together gives the best result, and we can quote for both.
Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.
Selhurst questions
Can you clean school ventilation in Selhurst during the holidays?
Yes, out-of-term visits are normal for schools. With about 36 schools and colleges on the FSA’s register within roughly a mile and a half of Selhurst, it pays to plan holiday dates ahead. Tell us your holiday dates and we’ll book the visit for when the site is empty.
What do you need to know about parking in Selhurst?
Tell us where a van can stop near your site in Selhurst, and about any building rules on loading. Much of our London work is done overnight, which helps.
What information do you need?
Only a few details: the address, the site type, your opening hours and how we reach the system. Photos and the last report help too. Then call us on 0345 646 2711 or send us an email.
Can you look after several sites?
Yes. Our area covers London and the South East, so we can schedule a run of sites as one programme. Each site gets its own report and pictures.
Do you look at the system first?
Yes. Every job is surveyed first, from your photos and details, or with a visit where needed. Then you get a fixed quote.
What does AHU cleaning cost?
There’s no set price, as it depends on the job: how big it is, what state it’s in, how we reach it and the working hours. We fix the price before work begins.
What do you clean inside the unit?
The main parts are the filters, coils, drain tray, fan and inside of the casing. The survey confirms what’s in your unit before we quote.
How do you protect the area?
By covering it before any work starts. We keep the work contained and clean down when we finish.
Staff cleaning versus specialist work
Staff cleaning does not replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. That is our job.
Towns and villages near Selhurst
What else we do in Selhurst
AHU cleaning in Selhurst: local notes
The FSA’s food hygiene register lists about 36 schools, colleges and universities, about 152 caring premises (care homes, nurseries and hospitals) and about 11 hotels and B&Bs with registered kitchens or food service within 1.5 miles or so of the middle of Selhurst. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Selhurst’s nearest hospital, Croydon University Hospital, is about 1.7 miles south-west. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. In London, ventilation plant is often on the roof or below ground, so the work is typically done out of hours.
If you run a surgery, dental practice or care home near Selhurst, clean ventilation matters as much to you as to a hospital like Croydon University Hospital (about 1.7 miles south-west). Classrooms and halls at schools such as St Mark's Church of England Primary Academy are easiest to work in when pupils are away.
Selhurst is about 5 miles south-east of Stockwell, in Greater London. Sites in Selhurst 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, Selhurst among them. For sites nearby, see our London page (7 miles or so).
Here we cover the SE25, SE20 and CR0 postcode area for AHU cleaning. That includes premises on Park Road, Court Road and Dixon Road and the roads around them. With the A213 close by, Selhurst is simple for us to get to for AHU cleaning. Neighbouring places we cover for AHU cleaning include South Norwood (1 mile north), Woodside (1 mile south), Ashburton (1 mile south), Elmers End (1 mile east) and Addiscombe (1 mile south). Larger places within reach include London (7 miles north), City of Westminster (9 miles north-west), Marylebone (9 miles north), Kensington (9 miles north-west), St Pancras (9 miles north) and Shoreditch (9 miles north).
Landmarks near Selhurst
Locally, jobs take us to businesses close to Harris Academy South Norwood, South Norwood Recreation Ground and The Albion pub. There’s a railway station in Selhurst itself: Norwood Junction station. Nearby you’ll also find Croydon University Hospital (1.7 miles south-west) and Crystal Palace Museum (1.4 miles north). The countryside around Selhurst includes Duppas Hill and Dulwich Upper Wood.
What affects the cost of AHU cleaning
There’s no set price list, because no two systems are the same. What we look at:
- Travel, parking and unloading
- Any permits to work or inductions
- The times the site is available
- How big the system is
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.
What we need to know
There’s no need for technical detail. It helps if you can send:
- When the site is open and when it’s quiet
- How we’d reach plant on a roof or in a plant room
- Wide photos of the system and the area around it
- Detail shots of panels, filters and grilles
For a fixed quote, give us a ring on 0345 646 2711 or send us an email with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. We typically come back within one working day.
When to call us in Selhurst
Planned maintenance often covers belts, motors and filters but not cleaning. That means a unit can tick every service box and still be carrying years of dirt.
Clients typically contact us after spotting one of these:
- Stale or musty smells from the ventilation
- Coils clogged with dust and debris
- Dirty fans and fan housings
- Blocked condensate drains and slimy trays
If you manage shops or offices close to Norwood Junction station, a TR19® Air inspection shows whether the ductwork needs cleaning.
What your quote should include
- Whether the whole system is included, or only the parts that are easy to reach
- Proof of accreditation you can verify
- Whether the price is fixed
- Whether a written report and pictures are included
The process
A visit follows the same order every time: protect the area, make the system safe, carry out the AHU cleaning, clear away and leave you the report. On site, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. We fit London jobs around the building rather than the other way round, so a visit in Selhurst is usually out of hours.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Preparing for the visit
- Name a contact who can let us in at the agreed time
- Mention any parking or loading restrictions
- Agree a time when the area can be out of use
Get a fixed quote
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, you get a fixed price before any work starts.
Related advice
Why it’s worth doing now in Selhurst
When the unit is clean, less dirt reaches the ducts, so the ducts and grilles stay cleaner between cleans. That makes the next inspection of a building in Selhurst simpler. It’s better booked as a planned job in Selhurst than handled as an emergency.
Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we will explain each part.
What you get with us
- Full insurance on every job
- Every job surveyed first
- Fixed quotes from a survey or pictures
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Take a look at what affects the cost and our accreditations and certificates.
When it’s something else
It’s worth knowing the limits before booking:
- Ventilation that was badly designed in the first place
- Faulty motors, drives or bearings
- Building management system faults
Not sure which it is? You can call us on 0345 646 2711, or email photos and we’ll tell you honestly before you book.
Where we work
- Filter sections
- Supply and extract fans
- Internal panels
- Heating and cooling coils
- Dampers and louvres
- Drain trays