Greater London · Air handling unit cleaning
AHU Cleaning in Bellingham
We cover Bellingham for cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- Filters that are clogged or overdue
- Units that have only ever had filter changes
- Air handling units due a clean after building work
AHU cleaning for kitchens and businesses in Bellingham
Where a building in Bellingham has had little more than filter changes, there may be dirt on the coils, fan and casing that nobody has looked at. A full clean deals with all of it. If you’re dealing with dirty fans and fan housings and plant that has been serviced but not cleaned, we can help, from internal panels, supply and extract fans and heating and cooling coils onwards.
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 Bellingham, dust settles in the units and ducts year after year, which is what TR19® Air cleaning deals with.
The sign-off is always in writing: a dated report with photos of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.
- Location
- Bellingham (SE6, SE26, SE23)
- Wider area
- Greater London
- Paperwork
- Photo report after every visit
- Quote
- Fixed quote, usually within a working day
- Hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Why deal with it now?
A slimy drain tray only gets worse. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Clearing it now is a much smaller job. Every month a London system goes without attention adds to what has to be done later.
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, and a neglected system can mean more work. If you’re not sure what’s needed, ring 0345 646 2711 or email us for straight advice and a fixed quote.
Why book with us
- In business since 2009
- Out-of-hours work and a 24/7 emergency line
- Accredited under CHAS and SafeContractor, with ISO 9001
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Read what affects the cost and our accreditations.
Managing agents and facilities teams in Bellingham
We regularly work with managing agents. Send the address, what’s needed and how access works and we’ll come back with a fixed quote.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we’re happy to quote for all of it.
Honest limits
An honest diagnosis matters more to us than a booking, so here’s what AHU cleaning will not do:
- Ductwork downstream of the unit, which is a separate clean
- Problems with the unit’s controls or sensors
- Mechanical faults with motors, belts or bearings
If in doubt, call 0345 646 2711 or drop us a line and we’ll say what we think.
Where we work
- Internal panels
- Heating and cooling coils
- Dampers and louvres
- Filter sections
- Supply and extract fans
- Drain trays
Ventilation in Bellingham buildings
Food Standards Agency data includes about 37 schools, colleges and universities, about 82 hospitals, care homes and childcare premises and about 4 hotels and guest houses in and around Bellingham, up to about a mile and a half out. Busy, occupied buildings like these are where clean supply air matters most. Bellingham’s nearest hospital, University Hospital Lewisham, is about 1.6 miles north. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. London plant rooms are often on roofs or in basements reached through occupied floors.
School buildings such as Elfrida Primary School are typically done in the holidays, so classrooms aren’t disturbed. For workplaces around Bellingham station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Bellingham is about 2 miles north of Beckenham, in Greater London. Whatever kind of site you run in Bellingham, AHU cleaning is something we can help with. We can work out of hours so trading is not interrupted. Bellingham is one of 764 places in Greater London where we work for commercial clients. Our London page covers sites nearby (6 miles or so).
We cover every part of SE6, SE26 and SE23 for AHU cleaning and the streets around it. You will find streets such as Oslac Road, Orford Road and Aitken Road, and we cover them all for AHU cleaning. Being close to the A2218, Bellingham is easy for our technicians to reach for AHU cleaning. Close by, we work in Southend (1 mile north), Bell Green (1 mile west), Catford (1 mile north-east), Perry Vale (1 mile west) and Sydenham (1 mile west). Further out, we also cover London (6 miles north-west), City of Westminster (8 miles north-west), Marylebone (8 miles north-west), Kensington (9 miles north-west), St Pancras (8 miles north-west) and Shoreditch (7 miles north).
Near you in Bellingham
Around Bellingham, our work takes us to kitchens and buildings near Sedgehill School, Forster Memorial Park and Allenby Tutorial Trust and the streets around them. There’s a railway station in Bellingham itself: Bellingham station. Other landmarks nearby include Prefab Museum (1 mile east) and University Hospital Lewisham (1.6 miles north). For a walk, there’s Downham Woodland Walk and Knight's Hill.
When to call us in Bellingham
Filters that aren’t changed or cleaned on time clog up, cutting airflow and sometimes letting dirty air bypass them altogether. Then the rest of the unit takes the load.
Clients normally contact us when they notice something like this:
- Rooms that smell stuffy when the system runs
- Dirty coils holding back the airflow
- Dust built up on fan impellers
- Drain trays holding standing water
Healthcare ventilation, from large hospitals like University Hospital Lewisham (about 1.6 miles north) to small clinics, depends on clean filters, coils and ducts.
Before booking anyone
- Whether the price is fixed
- When the next visit should be, and why
- How VAT is shown on the quote
- Whether a survey comes first
Also near Bellingham
More services for Bellingham
Part by part
Internal casing and panels
Access doors and panels are opened in turn and closed properly afterwards before the unit is handed back.
Filters
Every AHU relies on its filters to catch dust before it reaches the coils. As part of the clean, filters are checked and cleaned or replaced as agreed, and the housing around them is cleaned too.
Your questions about AHU cleaning in Bellingham
Can the work in Bellingham be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. The work in Bellingham can fit around your hours. Just ring 0345 646 2711 or drop us a line with your opening times and we’ll plan around them.
Does London parking affect a job in Bellingham?
London parking can be tight, so details of loading bays and permits help. Much of our London work is done overnight, which helps.
What accreditations do you have?
Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
Will the ventilation be off while you clean?
Yes, for the time we are working on it. We can work evenings, overnight or at weekends to keep disruption down.
Which parts of an air handling unit do you clean?
All the internal parts the air touches, from the intake and filters through the coils and fan to the outlet. The photo report shows each section before and after.
What types of premises do you cover?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.
How long will the unit be out of action?
As a guide, it takes one overnight shift for many single units, with bigger plant phased. The shutdown is planned to fit, out of hours if needed.
Can we book visits on a schedule?
Yes. We run scheduled maintenance contracts, set at the interval the system needs. The report from each visit recommends the next date.
Looking after it afterwards
After the visit, a few habits help the work last:
- Note any water around the unit or leaks below it
- Stick to the filter change plan
- Do not store bins or materials near the intake
- Check the drain tray is emptying during routine visits
Restart the unit with your site team or maintenance contractor once we’ve finished. Keep an eye on the condensate drain over the next few days to make sure it stays clear.
Keep the area around the intake clear. What’s near the intake ends up in the unit.
How the visit works
On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Anything that needs to be off for the work is switched off and left to cool before any work starts, and the area around the work is covered and protected. On site, it takes from a few hours for a compact unit to a day or more for a large one. We fit London jobs around the building rather than the other way round, so a visit in Bellingham is normally out of hours.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Drain trays are cleared and cleaned and the outlet checked.
- You get a TR19® certificate and a photo report.
Before we arrive
- Let us know about parking and loading
- Move anything stored near the system
- Let us know how we reach the system, including roofs, risers and plant rooms
How to get a 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.