Greater London · Air handling unit cleaning
AHU Cleaning in Colindale
Professional AHU cleaning in and around Colindale, booked around your opening hours and signed off in writing with photos.
- Stale or musty smells from the ventilation
- Intake sections clogged with outdoor debris
- Blocked condensate drains and slimy trays
AHU cleaning in Colindale
Drain trays under cooling coils are meant to empty. When the drain blocks, water sits there and the tray turns slimy, in the airstream that feeds the building. Cleaning and clearing it is a key part of the job. Typical jobs include air handling units never cleaned inside and dirty filters cutting the airflow, on supply and extract fans, internal panels and heating and cooling coils.
Many London buildings have had their ventilation extended and altered through several fit-outs, with old runs left behind that are hard to reach. In Colindale, as elsewhere, cleaning starts with an inspection of what’s there.
Think of the report as the system’s health record: a dated account with pictures of everything we did. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal and sits alongside the report.
- Place
- Colindale (NW9, NW4, HA8)
- Region
- Greater London
- Records
- Report and pictures after the visit
- Price
- A fixed price before any work starts
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Updated
- 30 October 2026
When something else is needed
It’s worth knowing the limits before booking:
- Dirty ducts beyond the unit itself
- Coils that are corroded or leaking and need replacing
- A system that’s undersized for the building
If in doubt, call 0345 646 2711, or send details by email and we will say what we think before you book.
Where we work
- Supply and extract fans
- Dampers and louvres
- Drain trays
- Filter sections
- Heating and cooling coils
- Internal panels
Aftercare tips
A little care between visits keeps the system in better shape. We recommend:
- Watch for drips or damp patches near the plant
- Make sure condensate is draining away
- Clear leaves and litter away from the intake
- Change filters on schedule and log each change
Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Don’t let leaves, litter or stored materials build up near the fresh air intake. Anything around the intake is likely to be drawn in.
Managing agents and facilities teams in Colindale
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.
Running several sites is easier with one contractor. We work across London and the South East, so a run of sites can go into one programme and kept on a regular cycle.
The process
A visit follows the same order every time: protect the area, make the system safe, carry out the AHU cleaning, tidy up and hand over the paperwork. On site, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. Many London buildings have a managing agent, a security desk or a permit-to-work system, so tell us who to contact in Colindale.
- 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.
- Filters, coils, fan section and casing are cleaned in turn.
- We clean out the drain tray and make sure it drains.
- You get a TR19® certificate and a photo report.
How to prepare
- Mention any parking or loading restrictions
- Agree a time when the area can be out of use
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
How to get a quote
To help us quote: the address, the type of site and when it’s open, photos of the system and any previous report or certificate. Then call 0345 646 2711 or use the quote form.
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Ventilation in Colindale buildings
Food Standards Agency records list about 39 schools, colleges and universities and about 46 caring premises (care homes, nurseries and hospitals) registered as food businesses in Colindale and the streets around it, up to about 1.5 miles out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. London plant rooms are often on roofs or in basements reached through occupied floors. About 1.3 miles north-west of Colindale is Edgware Community Hospital, the nearest hospital. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
If you manage a school such as Colindale Primary School, ventilation cleaning is best booked for the holidays.
Colindale is about 1 mile south-east of Burnt Oak, in Greater London. Sites in Colindale get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with photos. 764 places in Greater London are on our list, large and small. Our London page covers sites nearby, about 9 miles away.
Work in NW9, NW4 and HA8 is surveyed, quoted and booked the same way as anywhere else. Streets in the area include Cecil Road, Booth Road and Ajax Avenue, and we cover them all for AHU cleaning. You’ll find Colindale on the A5150, which makes it straightforward for our technicians to reach for AHU cleaning. Nearby, we also carry out AHU cleaning in West Hendon (1 mile south), The Hyde (1 mile south), The Burroughs (1 mile east), Hendon (1 mile south-east) and Kingsbury (1 mile south-west). Further out, we also cover London (9 miles south-east), City of Westminster (7 miles south-east), Marylebone (7 miles south-east), Kensington (7 miles south), St Pancras (7 miles south-east) and Shoreditch (9 miles south-east).
Near you in Colindale
Typical jobs here are in premises near Sunny Hill Park, Saracens High School and Kisharon College, among other places. Colindale’s nearest station is Hendon station, about 1 mile south-east. Nearby you will also find Edgware Community Hospital (1.3 miles north-west) and Brent Cross Shopping Centre (1.5 miles south-east). For a walk, there’s Darland's Lake and Parliament Hill.
Signs you need AHU cleaning in Colindale
No filter stops everything. The fine dust that passes the filters lands on the coils, the fan and the internal panels, a little more each month.
Clients normally contact us when they notice one of these:
- Blocked condensate drains and slimy trays
- Stale or musty smells from the ventilation
- Dirty filters cutting the airflow
- Intake sections clogged with outdoor debris
Hospitals such as Edgware Community Hospital (about 1.3 miles north-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near Colindale are no different.
What your quote should include
- How they set the interval to the next visit
- Exactly which parts of the system are covered
- What paperwork you get at the end
- Whether a survey comes first
Why act early in Colindale
A slimy drain tray only gets worse. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Dealing with it early keeps the clean straightforward. It’s better booked as a planned job in Colindale than handled as an emergency.
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will go through it with you.
What you get with us
- CHAS, SafeContractor and ISO 9001
- Full insurance on every job
- One number for every site across the South East and London
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Also near Colindale
What else we do in Colindale
Part by part
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. They’re cleaned using methods that won’t bend or flatten the fins.
Drain trays
Standing water in a tray sits right where the air passes. We clean it and report anything about the tray or drain that needs fixing.
Colindale: your questions answered
Can ventilation in schools around Colindale be cleaned out of term?
Yes, out-of-term visits are normal for schools. The FSA’s register shows about 39 schools and colleges with food registrations within roughly a mile and a half of Colindale. You can phone us on 0345 646 2711 or email us with the dates the site is empty.
Do you work overnight in Colindale?
Yes, out-of-hours work is a big part of what we do. Your customers, staff or residents in Colindale needn’t be disturbed. When you phone us on 0345 646 2711 or drop us a line, mention when the site is quiet.
Do you cover Colindale?
Yes. We work across Greater London, Surrey, Kent, Sussex, Hampshire, the Isle of Wight, Berkshire, Buckinghamshire, Oxfordshire, Hertfordshire and Essex, Colindale included.
What do you need from me for a quote?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. After that, simply give us a ring on 0345 646 2711, or email photos.
Can you come out in an emergency?
Yes. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we’ll talk you through the next steps.
What does TR19 mean?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping and expects a risk-based approach.
Which kinds of sites do you work on?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, as well as food production and leisure sites.
Do you work with multi-site operators?
Yes. Send the list of sites and the work at each and you’ll get one fixed quote.