Greater London · Air handling unit cleaning
AHU Cleaning in Greenford
For cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Greenford, one call is all it takes: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Dust built up on fan impellers
- Units that have only ever had filter changes
- Plant that needs cleaning after a refit
AHU cleaning in Greenford
Units vary a lot in size, age and layout, whether it’s a compact unit in a ceiling void or a big unit on the roof. Every job starts with a survey, from pictures or on site, followed by a fixed quote, so you know where you stand. We are often asked to deal with condensate trays that won’t empty and leaves and litter drawn into the unit, on supply and extract fans, drain trays and dampers and louvres.
In London, plant rooms are often in basements or on roofs reached through occupied floors, so work in Greenford is often done in the evening or at weekends. Parking and loading are agreed with the building in advance.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Place
- Greenford (UB6, UB5, UB1)
- Wider area
- Greater London
- Reporting
- Report and photos after the visit
- Quote
- A fixed price before any work starts
- Working hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Different parts, different methods
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.
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. We clean the impeller, housing and surrounding section.
Places near Greenford
What else we do in Greenford
Greenford questions
Does London parking affect a job in Greenford?
London parking can be tight, so details of loading bays and permits help. Night visits tend to make loading easier on London streets.
Can the work in Greenford be done at night or at weekends?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Greenford needn’t be disturbed. Let us know the hours you’re closed and we will book within them.
How do you keep the site clean during the work?
Floors and surfaces near the work are sheeted before we start, and waste is contained as we go. At the end, the area is cleaned down.
Can we book visits on a schedule?
Yes. Scheduled maintenance plans are part of what we do, set at the interval the system needs. The report from each visit recommends the next date.
Can you price the work without visiting?
Yes, for many jobs. Send wide shots, close-ups of any access panels and anything that worries you, and we usually come back within one working day. If pictures are not enough, we will survey first.
What happens if you cannot reach some of it?
The report shows them clearly. In ductwork, new access panels are often the answer, which we can install.
Is there a report after cleaning?
Yes. You receive a certificate and a report showing each section before and after, with any faults we noticed.
How often do AHUs need cleaning?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. Each report suggests when the unit should next be looked at.
Staff cleaning versus specialist work
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. That’s our job.
The process
Our technicians bring everything the work needs, including protection sheets, the right tools and access kit. All we need from you is clear access and the right equipment switched off. On site, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. Managed blocks in London often need contractors booked in ahead, and we are happy to deal with the agent directly for a site in Greenford.
- We survey the unit from pictures or on site and agree what’s included.
- The unit is shut down with your site team and the area protected.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- Standing water and slime come out of the tray and the drain is checked.
- A TR19® certificate and photo report follow the clean.
How to prepare
- Let us know when the site is closed or quiet
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Clear the space around the work
Getting a quote
We do not publish a price list, because every site is different. We look at your system first, from photos or on a visit, then send a fixed quote. To start, phone us on 0345 646 2711, or send details by email.
Read more
Common problems we fix in Greenford
Filters that are not changed or cleaned on time clog up, which cuts the airflow and can let air slip round the filter. Then the rest of the unit takes the load.
Any of these means the system needs a check-up:
- Dust-coated heating and cooling coils
- Condensate trays that won’t empty
- Plant that has been serviced but not cleaned
- Dirty filters cutting the airflow
If you manage offices or shops near Greenford station, their ventilation can be inspected and cleaned out of hours.
Comparing quotes
- When the next visit should be, and why
- Whether the quote is based on a survey or pictures
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether the whole system is included, or only the parts that are easy to reach
Multi-site and managed buildings
Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept on a regular cycle.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.
Between visits
Simple habits between visits make a real difference. We recommend:
- Report water on the plant room floor
- Make sure the unit’s access doors open easily
- Keep the certificate and photo report with the plant records
- Look at the condensate drain whenever the unit is serviced
The ducts served by the unit may need attention too. Cleaning the unit and ducts together gives the best result, and we can survey both.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air instead of leaving it to guesswork.
When it’s something else
Some problems need a different service or another trade:
- Dirty ducts beyond the unit itself
- Airflow problems caused by the system’s design
- Building management system faults
If in doubt, phone us on 0345 646 2711 or use the quote form and we’ll say what we think before you book.
What we work on in Greenford
- Internal panels
- Supply and extract fans
- Heating and cooling coils
- Dampers and louvres
- Filter sections
- Drain trays
AHU cleaning in Greenford: local notes
There are about 53 schools, colleges and universities and about 75 hospitals, care homes and childcare premises on the FSA’s food hygiene register in Greenford and the streets around it, up to about 1.5 miles out. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. In London, ventilation plant is often on the roof or below ground, so the work is usually done out of hours. The nearest hospital to Greenford is Clementine Churchill Hospital, about 2 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.
Wherever a school like Oldfield Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time. Hospitals such as Clementine Churchill Hospital (about 2 miles north) show how much a building can rely on clean ventilation, and smaller healthcare sites near Greenford are no different.
Greenford is about 3 miles north-west of Ealing, in Greater London. Whatever kind of site you run in Greenford, we can take on AHU cleaning. We can work out of hours so trading isn’t interrupted. Greenford is one of 764 places in Greater London we cover for commercial clients. There’s also a page for London, roughly 11 miles from Greenford.
Postcode districts we cover here for AHU cleaning: UB6, UB5 and UB1. If you need AHU cleaning at premises on Courthope Road, Oldfield Farm Gardens and Greenford Road or a nearby road, we can help. With the A4090 and A4127 close by, Greenford is easy for our technicians to reach at any hour. Other places close to Greenford include Northolt (1 mile north-west), Perivale (1 mile east), Sudbury (2 miles north-east), Sudbury Hill (2 miles north-east) and Dormers Wells (2 miles south-west). Within a short drive, we also cover London (11 miles east), City of Westminster (9 miles east), Marylebone (9 miles east), Kensington (7 miles south-east), St Pancras (10 miles east) and Shoreditch (12 miles east).
Around Greenford
Around Greenford, our work takes us to kitchens and buildings near Ada Lovelace Church of England High School, The Railway pub and Northala Fields and the streets around them. Greenford has its own railway station: Greenford station. Nearby you’ll also find London Designer Outlet (3 miles north-east) and Clementine Churchill Hospital (2 miles north). Open spaces near Greenford include Northala Fields and Litten Nature Reserve.