Greater London · Air handling unit cleaning
Air handling unit cleaning in Three Mills, Greater London
One call covers cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Three Mills, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Leaves and litter drawn into the unit
- Rooms that smell stuffy when the system runs
- Plant that needs cleaning after a refit
How the job changes from site to site
Drain trays
A tray that does not drain becomes a pool of stagnant water in the airstream. We clean it and note if the slope or the drain needs attention.
Rooftop and plant room units
Smaller units in ceiling voids are part of the work as well. We protect the area below before opening them.
AHU cleaning in Three Mills
Think of an AHU clean as a full check-up for the ventilation. Every section is opened, cleaned and photographed, so you can see the unit’s condition for yourself. Typical jobs include dirty fans and fan housings and air handling units never cleaned inside, on drain trays, filter sections and internal panels.
Many London buildings have had their ventilation extended and altered through several fit-outs, leaving sections that are hard to reach and seldom cleaned. In Three Mills, as elsewhere, cleaning starts with an inspection of what’s there.
We’ve been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Place
- Three Mills (E3, E15, E14)
- Region
- Greater London
- Reporting
- Photo report after every visit
- Price
- A fixed price before we start
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
For landlords and multi-site operators
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We are happy to deal with either side, and the report can go to both.
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 records stay tidy.
AHU cleaning in Three Mills: local notes
There are about 52 schools, colleges and universities, about 42 care, childcare and hospital premises and about 14 hotels and B&Bs on the FSA’s food hygiene register within 1.5 miles or so of the middle of Three Mills. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. The nearest hospital to Three Mills is St Clement's Hospital, about 0.9 miles west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. Ventilation cleaning in London buildings is usually planned for evenings or weekends.
St Clement's Hospital, about 0.9 miles west, is the nearest hospital to Three Mills, and healthcare sites of every size need their supply air kept clean. For workplaces around West Ham station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Three Mills is about 1 mile south of Stratford, in Greater London. For AHU cleaning in and around Three Mills, it’s easy to get a fixed quote: please phone us on 0345 646 2711 or use the quote form. Our area covers London and the South East, Three Mills included. Three Mills is one of 764 towns, villages and districts in Greater London where we work for AHU cleaning.
Every address in E3, E15 and E14 is within our area for AHU cleaning, from the main roads to the quietest streets. Streets in the area include Gay Road, Bruce Road and Edgar Road, all of which we cover for AHU cleaning. We also cover Mill Meads (1 mile north), Bromley (1 mile south-west), Old Ford (1 mile north-west), Bow (1 mile west) and Bow Common (1 mile south-west). Larger places within reach include London (4 miles south-west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (9 miles west), St Pancras (5 miles west) and Shoreditch (3 miles west).
Local landmarks in Three Mills
Locally, jobs take us to businesses close to Manorfield Primary School, London International School of Performing Arts and Bob's Park. The closest station to Three Mills is West Ham station, about 0.5 miles east. A little further out are Stratford Centre (1 mile north) and St Clement's Hospital (0.9 miles west). The countryside around Three Mills includes Hollow Pond and Old Ford Island.
What happens on the day
The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. It takes anything from half a day for one small unit to several shifts for a plant room full of them, and the area is cleaned down before we leave. Night and weekend working is normal for us in London, and a site in Three Mills is no exception.
- 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.
- The fan and drain tray are cleaned and the drain checked.
- After photos are taken and the certificate issued.
How to prepare
- Clear the space around the work
- Agree a time when the area can be out of use
- Mention any sign-in, permit or induction we need
How to get a quote
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before work begins.
Advice
Questions from Three Mills
Do you work at weekends in Three Mills?
Yes, nights and weekends are routine for us. Your customers, staff or residents in Three Mills needn’t be disturbed. When you phone us on 0345 646 2711, or email photos, mention when the site is quiet.
Can you clean school ventilation in Three Mills during the holidays?
Yes. The holidays are the usual time for school work. Around Three Mills, the Food Standards Agency lists about 52 schools and colleges with registered kitchens within a mile and a half or so. Send us your term dates when you call 0345 646 2711 or email us, and we will fit the work in.
What should I send you?
The site address, the type of premises and your opening hours, plus photos of the system and your last certificate or report if you have one.
What about areas you can’t get to?
We never leave them off the paperwork. You’ll know exactly which parts weren’t reached and why, and we can quote to improve the access.
How do you keep the site clean during the work?
Floors and surfaces near the work are sheeted before work begins, and anything we remove is contained. Before we leave, we tidy up and clean down.
How much notice do you need?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.
What does AHU cleaning cost?
The cost depends on the size of the system, its condition, access and timing. Ask us for a fixed quote, usually ready within one working day.
Is there a report after cleaning?
Yes. Every clean comes with a TR19® certificate and a photo report. They’re worth keeping with the plant records.
Nearby places to Three Mills
What else we do in Three Mills
Looking after it afterwards
Once we’ve finished, these simple steps help:
- Report stiff or damaged access doors
- Don’t store bins or materials near the intake
- Keep filter changes on time and recorded
- File each AHU report in the maintenance log
Once the clean is done, we send a TR19® certificate and a report with before and after pictures. Keep both with the building’s maintenance records.
Make sure access doors and panels on the unit open easily. If a section is hard to get into, it tends not to get checked.
When it’s something else
We’d rather tell you now than book work that will not help, so here are the limits:
- Damaged coils beyond cleaning
- Dirty ducts beyond the unit itself
- Controls and BMS settings that run the unit
If you’re not sure, just call us on 0345 646 2711 or email us and we will give you a straight answer before booking.
Where we work
- Drain trays
- Heating and cooling coils
- Internal panels
- Dampers and louvres
- Supply and extract fans
- Filter sections
Why act early in Three Mills
Dirt left in an air handling unit doesn’t stay in the unit. It moves on into the ductwork and out into the rooms, which is why the unit and the ducts are best cleaned together. It’s better booked as a planned job in Three Mills than handled as an emergency.
You will not find a price list here, because each job is priced on what it involves. For a fixed quote, phone us on 0345 646 2711 or send us an email, and we’ll explain what it covers.
Why Three Mills businesses choose us
- Fixed quotes, usually within one working day
- Ventilation hygiene specialists since 2009
- Fully insured
- Photo reports with every job
Take a look at how cleaning jobs are priced and how to check a contractor.
Signs you need AHU cleaning in Three Mills
An overdue filter loads up with dirt, cutting airflow and sometimes letting dirty air bypass them altogether. Then the rest of the unit takes the load.
Most sites get in touch when they notice something like this:
- Coils clogged with dust and debris
- Intake sections clogged with outdoor debris
- Dust built up on fan impellers
- Odours coming through the supply air
Wherever a school like East London Science School has ducted ventilation, a half-term visit keeps the work out of lesson time.
What to look for in a quote
- If they look at the system before pricing
- When they can work, and whether that’s outside your opening hours
- Whether the figure could change on the day
- How VAT is shown on the quote