Greater London · Air handling unit cleaning
Air handling unit cleaning in Sipson, Greater London
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for Sipson, with a survey first and a report with pictures at the end. Call for a fixed quote.
- Plant that has been serviced but not cleaned
- Plant that needs cleaning after a refit
- Debris and leaves in the fresh air intake
Leave it or put it right?
Standing water in a drain tray doesn’t clear itself. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Dealing with it early keeps the clean straightforward. A building in Sipson may have flats or offices above and alongside, and a fault in the system can affect them too.
The cost depends on how big the system is, what state it’s in and access to every part of it. You get a fixed price before any work starts, so you know where you stand.
What you get with us
- One number for every site across the South East and London
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Fixed quotes from a survey or photos
- We diagnose before we treat
How we handle AHU cleaning in Sipson
The fan pushes every bit of air in the system, so dirt on the impeller and housing gets spread around. We clean the fan section along with the rest of the unit, once the unit has been shut down and isolated. The work covers supply and extract fans, drain trays and internal panels, and people most often call us about dirty filters cutting the airflow and dust built up on fan impellers.
London buildings often depend on air handling units in plant rooms or on the roof to supply fresh air. For a building in Sipson, 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, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Where
- Sipson (UB7, UB3)
- Region
- Greater London
- Records
- Photo report after every visit
- Quotes
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Honest limits
It’s worth knowing the limits before booking:
- Airflow problems caused by the system’s design
- Controls and BMS settings that run the unit
- Mechanical faults with motors, belts or bearings
If in doubt, ring 0345 646 2711, or email photos and we’ll say what we think before you book.
What we work on in Sipson
- Dampers and louvres
- Heating and cooling coils
- Filter sections
- Internal panels
- Drain trays
- Supply and extract fans
Your questions about AHU cleaning in Sipson
Do you do school ventilation cleaning in Sipson in the summer holidays?
Yes. Half-terms and the summer break are the natural time for school work. The FSA’s register shows about 21 schools and colleges with food registrations within roughly a mile and a half of Sipson. Tell us your holiday dates and we will book the visit for when the site is empty.
Can parking be tricky for a job in Sipson?
Tell us where a van can stop near your site in Sipson, and about any building rules on loading. Much of our London work is done overnight, which helps.
How much 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. We fix the price before work begins.
Is there a report after cleaning?
Yes. You get a TR19® certificate plus before and after pictures. Keep them in the maintenance log.
Can one contract cover all our sites?
Yes. One number covers all your sites in our area, with visits on a regular schedule.
What types of premises do you cover?
Commercial premises of every kind: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. Work is timed around how each site runs.
Do you offer maintenance contracts?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, depending on what the system needs.
Will you repair the fan or motor?
Motors, belts, controls and coils that need repair are a job for your maintenance contractor. We’ll flag anything we notice during the clean.
Different parts, different methods
Rooftop and plant room units
Units outside are exposed to weather and windblown debris. We clean the intake and first stage of filters along with the rest.
Fans and fan sections
Every bit of air passes the fan, so a dirty fan sends dirt downstream. The impeller, its housing and the fan chamber are cleaned.
AHU cleaning in Sipson: local notes
Food Standards Agency data includes about 21 schools, colleges and universities, about 14 hospitals, care homes and childcare premises and about 18 hotels and guest houses in Sipson and the streets around it, up to about 1.5 miles out. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. In London, ventilation plant is often on the roof or below ground, so the work is normally done out of hours. Harlington is the nearest hospital, about under half a mile south of Sipson. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Wherever a school like Cherry Lane Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Sipson is about 1 mile south-east of West Drayton, in Greater London. Whether your site is in the middle of Sipson or further out, AHU cleaning is available to all kinds of commercial premises, from a single unit to a large public building. 764 places in Greater London are on our list, from busy centres to quieter spots. Our London page covers sites nearby (15 miles or so).
All of UB7 and UB3 is covered for AHU cleaning, from busy streets to back roads. AHU cleaning is available to premises on East Road, Sipson Lane and Sipson Road and nearby roads. Other places close to Sipson include Harlington (1 mile south-east), Harmondsworth (1 mile south-west), Heathrow (2 miles south), Cranford (2 miles south-east) and Longford (2 miles south-west). Within a short drive, we also cover London (15 miles east), City of Westminster (13 miles east), Marylebone (13 miles east), Kensington (11 miles east), St Pancras (14 miles east) and Hampstead (12 miles east).
Local landmarks in Sipson
Locally, jobs take us to businesses close to Lake Farm Country Park, Harlington Community School and The Plough pub and the streets around them. The closest station to Sipson is West Drayton station, roughly 1.4 miles north-west of the centre. A little further out are The Chimes (3.7 miles north) and Harlington (less than half a mile south). Not far away are Northala Fields and Crane Meadows.
Landlords, agents and facilities managers
Records are where multi-site compliance often slips. Each visit produces a dated report with photos, so you can show an insurer or inspector what was done at each site.
Facilities teams in offices, schools and healthcare sites book us too across Greater London. Larger estates can be phased building by building to keep disruption down.
More services for Sipson
Looking after it afterwards
Good habits slow the build-up between visits. A few tips:
- Change filters on schedule and log each change
- Clear leaves and litter away from the intake
- Store the TR19 paperwork where auditors can find it
- Don’t ignore odours coming through the grilles
The ducts served by the unit may need attention too. A clean unit feeding dirty ducts only solves half the problem, and we can survey both.
Check drain trays and condensate drains during routine maintenance. Catching a slow drain early stops standing water building up.
The process
Your staff do not need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and we take it from there. Before we leave, the area is tidied and the paperwork follows. Before any visit in Sipson, we agree where the van can stop and how equipment reaches the system.
- We survey the unit from photos or on site and agree what’s included.
- The unit is shut down with your site team and the area protected.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- 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
- Make sure someone can let us in and lock up afterwards
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Make sure equipment near the work can be switched off and left to cool
Getting a quote
Need a price for AHU cleaning? Please phone us on 0345 646 2711 or send us an email with a few details about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.
Read more
What we are called out for in Sipson
Cooling coils create condensation, and that water has to go somewhere. A blocked outlet or a badly sloped tray leaves standing water, and that is where slime and odours start.
These are the problems we see most often:
- Intake sections clogged with outdoor debris
- Rooms that smell stuffy when the system runs
- Dust built up on fan impellers
- Blocked condensate drains and slimy trays
Hospitals such as Harlington (about under half a mile south) show how much a building can rely on clean ventilation, and smaller healthcare sites near Sipson are no different.
What your quote should include
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- How VAT is shown on the quote
- When the next visit should be, and why
- Proof of insurance