Greater London · Air handling unit cleaning
AHU Cleaning in Addiscombe
AHU cleaning for Addiscombe and the surrounding area: diagnosis first, then a fixed quote, the work and a report with pictures. Call for a fixed quote.
- Fan sections that haven’t been cleaned in years
- Leaves and litter drawn into the unit
- Air handling units due a clean after building work
AHU cleaning in Addiscombe, done properly
No two plant rooms are the same, from a small ceiling-mounted unit to a large rooftop plant. We look at the unit first, from pictures or a site visit, and send you a fixed quote, so you know where you stand. If you’re dealing with condensate trays that won’t empty and units that have only ever had filter changes, we can put it right, from drain trays, dampers and louvres and supply and extract fans onwards.
London offices and flats often have ductwork added through successive refits, with old runs left behind that are hard to reach. In Addiscombe, 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 pictures of everything we did. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal, ready for your insurer.
- Location
- Addiscombe (CR0, SE25, CR9)
- Wider area
- Greater London
- Paperwork
- Written report with photos
- Quote
- A fixed quote up front
- Hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What affects the cost of AHU cleaning
A fixed price needs a few facts first. We check:
- The condition of the system
- A single visit or a regular plan
- Parking and loading at the site
- Any permits to work or inductions
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, which can make the next visit longer. If you are not sure what’s needed, phone us on 0345 646 2711 or email us for straight advice and a fixed quote.
What to send for a quote
When you contact us, it’s useful to have:
- Wide pictures of the system and the area around it
- The site address and the type of premises
- Any access panels or hatches you can see
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
Getting a quote does not take long. Call or email with a few details and you will normally have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
What we do, step by step
Before we leave, we walk the area with whoever is on site. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. The visit takes from a few hours for a compact unit to a day or more for a large one. In Addiscombe, as across London, we typically work overnight or at weekends and hand the site back ready to open.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- After pictures are taken and the certificate issued.
Preparing for the visit
- Mention any sign-in, permit or induction we need
- Dig out any earlier paperwork for the system
- Make sure equipment near the work can be switched off and left to cool
Get a fixed quote
Every quote begins with a look at the system, either from photos and details you send or from a site visit. Then we send a fixed price, before work begins.
Advice
When to call us in Addiscombe
No filter stops everything. The fine dust that passes the filters lands on the coils, the fan and the internal panels, building up layer by layer.
Any of these means the system needs a check-up:
- Air handling units never cleaned inside
- Condensate trays that will not empty
- Fan sections that haven’t been cleaned in years
- Odours coming through the supply air
If you run a surgery, dental practice or care home near Addiscombe, clean ventilation matters as much to you as to a hospital like National Psychosis Unit (about 1.5 miles east).
What to look for in a quote
- Proof of accreditation you can verify
- Whether a survey comes first
- What paperwork you get at the end
- Whether the work can be done while the site is closed
What your team can do, and what needs us
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
What AHU cleaning looks like in Addiscombe
The FSA’s food hygiene register lists about 28 schools, colleges and universities, about 95 care, childcare and hospital premises and about 9 hotels, B&Bs and guest houses with registered kitchens or food service within 1.5 miles or so of the middle of Addiscombe. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. For Addiscombe, the closest hospital is National Psychosis Unit, roughly 1.5 miles east. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. Many London buildings have had their ductwork altered through several fit-outs, so an inspection comes first.
Classrooms and halls at schools such as Oasis Academy Shirley Park are easiest to work in when pupils are away.
Addiscombe is about 2 miles north-east of Croydon, in Greater London. Across the CR0 area, we can carry out AHU cleaning at your premises. 764 places in Greater London are on our list, large and small. Our London page covers sites nearby, about 8 miles away.
Here we cover the CR0, SE25 and CR9 postcode area for AHU cleaning. Local streets include Grant Road, Capri Road and Coe Avenue, and we cover them all for AHU cleaning. Main roads around Addiscombe include the A232, so getting to you is simple for AHU cleaning. We also cover Shirley Oaks (1 mile east), Ashburton (1 mile north), Woodside (1 mile north), Shirley (1 mile east) and Monks Orchard (1 mile east). Larger places within reach include London (8 miles north), City of Westminster (10 miles north), Marylebone (10 miles north), Kensington (10 miles north-west), St Pancras (10 miles north) and Shoreditch (10 miles north).
Around Addiscombe
Around Addiscombe, our work takes us to kitchens and buildings near The Woodside Academy, The Cricketers pub and Ashburton Park, among other places. For rail, the closest station is Norwood Junction station, roughly 1.2 miles north. A little further out are St George's Walk (1.5 miles west) and Crystal Palace Museum (2.7 miles north). Open spaces near Addiscombe include Duppas Hill and Bramley Bank.
Common questions in Addiscombe
Does London parking affect a job in Addiscombe?
A loading bay, a visitor permit or off-street space near the site in Addiscombe makes the visit easier to plan. Working overnight, as we often do in London, typically makes it simpler.
Can ventilation in schools around Addiscombe be cleaned out of term?
Yes, and it’s the easiest time to do it. There are about 28 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Addiscombe. Just phone us on 0345 646 2711 or send us an email with your term dates and we’ll plan around them.
Do you need to switch the unit off?
Yes. The unit has to be shut down and isolated before it’s opened. The shutdown is planned with whoever runs the building.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Can you look after several sites?
Yes. We work across South East England and London, so sites at different addresses can be planned together as one programme. Each site gets its own report and photos.
How often should an air handling unit be cleaned?
Inspection under TR19® Air decides it. A hard-working unit, or one serving a hospital or care home, may need cleaning more often.
What happens to the waste?
It leaves the site with us at the end of the visit. While we work, it’s kept contained to keep the area clean.
Can you price the work without visiting?
Yes, for many jobs. Send a few wide photos plus close-ups of panels, filters or grilles, and a fixed quote normally follows within one working day. Some sites still need a visit, and we’ll say so.
Keeping the system healthy
How long the results last depends on use and care. We suggest:
- File each AHU report in the maintenance log
- Stick to the filter change plan
- Keep the area around the fresh air intake clear
- Report water on the plant room floor
Keep filter changes on schedule between cleans, because good filters protect everything downstream. Record each change in the maintenance log.
Do not let leaves, litter or stored materials build up near the fresh air intake. What’s near the intake ends up in the unit.
Towns and villages near Addiscombe
Also in Addiscombe
How the job changes from site to site
Internal casing and panels
Damaged internal linings or loose panels can shed material into the air. Anything like that is recorded with pictures.
Fans and fan sections
The fan section is cleaned with the unit switched off and isolated with your site team.
What AHU cleaning can’t fix
AHU cleaning cannot fix everything, and we’d rather say so up front. It will not put right:
- Controls and BMS settings that run the unit
- Ductwork downstream of the unit, which is a separate clean
- Mechanical faults with motors, belts or bearings
If in doubt, phone us on 0345 646 2711 or use the quote form and we’ll say what we think.
What the work covers
- Dampers and louvres
- Drain trays
- Heating and cooling coils
- Internal panels
- Filter sections
- Supply and extract fans