Greater London · Air handling unit cleaning
Bexley AHU cleaning
Looking for AHU cleaning in Bexley? We survey first, send you a fixed quote and work around your opening hours, then sign off with a report and pictures.
- Plant that needs cleaning after a refit
- Condensate trays that won’t empty
- Dust built up on fan impellers
AHU cleaning in Bexley
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 before any cleaning starts. If you’re dealing with debris and leaves in the fresh air intake and units needing a clean before a new tenant or handover, we can put it right, from filter sections, heating and cooling coils and internal panels onwards.
London buildings often depend on air handling units in plant rooms or on the roof to supply fresh air. For a building in Bexley, dust settles in the units and ducts year after year, which is what TR19® Air cleaning deals with.
Nothing is signed off by word of mouth: a dated report with photos of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Where
- Bexley (DA5, DA6, DA14, DA1)
- Region
- Greater London
- Records
- Written report with pictures
- Quote
- A fixed quote up front
- When we work
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Bexley buildings and their air
Food Standards Agency data includes about 26 schools, colleges and universities, about 47 caring premises (care homes, nurseries and hospitals) and about 4 hotels, B&Bs and guest houses in Bexley and the streets around it, up to about 1.5 miles out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Bexley Hospital is the nearest hospital, about 1 mile north of Bexley. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. In London, ventilation plant is often on the roof or below ground, so the work is usually done out of hours.
If you manage shops or offices close to Bexley station, a TR19® Air inspection shows whether the ductwork needs cleaning. Bexley Hospital, about 1 mile north, is the nearest hospital to Bexley, and healthcare sites of every size need their supply air kept clean. For schools like Old Bexley Church of England School, the holidays are the usual time to inspect and clean ventilation.
Bexley is about 3 miles east of Eltham, in Greater London. Across the DA5 area, we can carry out AHU cleaning at your premises. Across Greater London, we cover 764 places, Bexley among them. There’s also a page for London, roughly 11 miles from Bexley.
Our technicians cover all of DA5, DA6, DA14 and DA1 for AHU cleaning and the roads nearby. If you need AHU cleaning at premises on Bexley High Street, Camden Road and The North Glade or a nearby road, our technicians can take on the work. You will find Bexley on the A2018 and B2210, so it’s easy for us to get to for AHU cleaning. Neighbouring places we cover for AHU cleaning include Blendon (1 mile north-west), North Cray (1 mile south), Bexleyheath (1 mile north), Upton (1 mile north) and Coldblow (1 mile east). Larger places within reach include London (11 miles west), City of Westminster (13 miles west), Marylebone (13 miles north-west), Kensington (15 miles west), St Pancras (12 miles north-west) and Shoreditch (11 miles north-west).
Local landmarks in Bexley
Typical jobs here are in premises near St Columba's Catholic Boys' School, Danson Park and Townley Grammar School, among other places. The nearest railway station is Bexley station, about 0.6 miles east. Nearby you’ll also find Broadway Shopping Centre (1 mile north-east) and Bexley Museum (1.1 miles east). Green spaces nearby include Summer Hill and Wansunt Pit.
In-house cleaning or a specialist?
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. Leave those to us.
Also near Bexley
Other services in Bexley
Part by part
Heating and cooling coils
Coil fins are close together and catch the dust the filters miss. They’re cleaned using methods that won’t bend or flatten the fins.
Rooftop and plant room units
Ceiling-mounted and compact units are cleaned too. We protect the area below before opening them.
When it’s something else
It’s worth knowing the limits before booking:
- Breakdowns that need a mechanical engineer
- Problems with the unit’s controls or sensors
- A system that’s undersized for the building
If you’re not sure, just phone us on 0345 646 2711 or drop us a line and we will give you a straight answer before you book.
What the work covers
- Filter sections
- Heating and cooling coils
- Internal panels
- Supply and extract fans
- Dampers and louvres
- Drain trays
What happens if it’s left?
Leave an AHU uncleaned and the dirt does not stay put. It moves on into the ductwork and out into the rooms, so cleaning the ducts without the unit only goes so far. It’s better booked as a planned job in Bexley than handled as an emergency.
The price reflects the work, not guesswork. That’s why every job is surveyed first, and why the quote is fixed before any work starts.
Why us?
- Every visit written up, with photos
- One number for every site across the South East and London
- Out-of-hours work and a 24/7 emergency line
- We are fully insured
Take a look at what affects the cost and our accreditations and certificates.
Landlords, agents and facilities managers
We regularly work with managing agents. Tell us the site, the work and the access arrangements and we’ll come back with a fixed quote.
Whether it’s one building or many, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with pictures.
What we do, step by step
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. The visit itself takes from a few hours for a compact unit to a day or more for a large one. Night and weekend working is normal for us in London, and a site in Bexley is no exception.
- We agree a shutdown window that suits the building.
- 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 photos are taken and the certificate issued.
Before we arrive
- Clear the space around the work
- Let us know how we reach the system, including roofs, risers and plant rooms
- Let us know when the site is closed or quiet
Get a fixed quote
Some systems can be priced from pictures; others need a survey. 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.
Read more
FAQs for Bexley
Do you do school ventilation cleaning in Bexley in the summer holidays?
Yes. The holidays are the usual time for school work. There are about 26 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Bexley. Tell us your holiday dates and we will book the visit for when the site is empty.
Do you work at weekends in Bexley?
Yes, out-of-hours work is a big part of what we do. The site is handed back ready to open. Your opening times are the first thing we ask for.
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. You get a fixed price before we start.
How long does an AHU clean take?
Expect it to take from a few hours for a compact unit to a day or more for a large one. Size, layout and how dirty it is decide the rest, and we will confirm the time when we quote.
Can one contract cover all our sites?
Yes. Send the list of sites and the work at each and we’ll quote them together.
Do you need to switch the unit off?
Yes. The fan must be stopped and the unit isolated, so we plan it for a time that suits the building.
Will you repair the fan or motor?
Mechanical repairs to the unit are for your HVAC maintenance contractor. We clean the unit and report anything we see that needs attention.
Will we get paperwork for the AHU clean?
Yes. Every clean comes with a TR19® certificate and a photo report. They’re worth keeping with the plant records.
Keeping the system healthy
To keep the system working properly between visits:
- Keep the area around the fresh air intake clear
- Do not ignore odours coming through the grilles
- Book the next check in line with the report
- Change filters on schedule and log each change
The report suggests a date for the next inspection or clean, 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. A drain that is cleared early never gets to the slime stage.