Greater London · Air handling unit cleaning
South Hampstead AHU cleaning
For AHU cleaning in South Hampstead, one call is all it takes, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Fan sections that haven’t been cleaned in years
- Dirty coils holding back the airflow
- Plant that has been serviced but not cleaned
AHU cleaning for kitchens and businesses in South Hampstead
Where a building in South Hampstead has had little more than filter changes, there may be dirt on the coils, fan and casing that nobody has looked at. A full clean deals with all of it. If you are dealing with units that have only ever had filter changes and dirty fans and fan housings, we can help.
London buildings often depend on air handling units in plant rooms or on the roof to supply fresh air. In a building in South Hampstead, dust and debris build up in the units and ductwork over time, which is what TR19® Air cleaning deals with.
A written report with photos follows every visit, so you have a record of what was done and when. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Place
- South Hampstead (NW3, NW8, NW6)
- Region
- Greater London
- Reporting
- Report and photos after the visit
- Quotes
- Fixed quote, typically within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
In-house cleaning or a specialist?
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, which is where we come in.
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but they don’t reach the grease that builds up further in. That part needs specialist access and equipment.
FAQs for South Hampstead
Do you do school ventilation cleaning in South Hampstead in the summer holidays?
Yes. Half-terms and the summer break are the natural time for school work. With about 70 schools and colleges on the FSA’s register within roughly a mile and a half of South Hampstead, it pays to plan holiday dates ahead. Send us your term dates when you ring 0345 646 2711 or send us an email, and we will fit the work in.
Can parking be tricky for a job in South Hampstead?
We plan it in advance, so let us know about loading bays, permits and access rules at the building. If the building has a loading slot system, we’ll book into it.
Can you set up regular visits?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
How long does an AHU clean take?
Expect it to take half a day to a full day per unit, with large plant planned over several shifts. The unit’s size and condition make the biggest difference, and the quote will give you a clear idea.
Do you need to switch the unit off?
Yes. The unit has to be shut down and isolated before it’s opened. The shutdown is planned with whoever runs the building.
Do you have a 24/7 line?
Yes, any time. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we’ll advise on what to do next.
Where does the waste go?
We take it away when we go. During the work, it’s contained to keep the area clean.
Why act early in South Hampstead
A clogged coil or dirty fan makes the unit work harder for the same airflow. That means more wear on the motor and rooms that feel less fresh, and a planned clean is far less disruptive than a breakdown. A booked night’s work in South Hampstead costs you no trading time; an unplanned closure does.
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. You will have a fixed price before we start.
Why South Hampstead businesses choose us
- CHAS and SafeContractor accredited, with ISO 9001
- Survey first, then a fixed quote
- One contact for all your sites in London and the South East
- Fixed quotes, usually within one working day
Read our cost guide or how to check a contractor.
When to call us in South Hampstead
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. Most of it lands at the intake and the first stage of filters, and the finer material travels on.
Most sites get in touch when they notice one of these:
- Filters that are clogged or overdue
- Dust-coated heating and cooling coils
- Drain trays holding standing water
- Debris and leaves in the fresh air intake
Hospitals such as Hospital of St John and St Elizabeth (about 0.7 miles south) show how much a building can rely on clean ventilation, and smaller healthcare sites near South Hampstead are no different.
Comparing quotes
- Exactly which parts of the system are covered
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether a survey comes first
- When the next visit should be, and why
For landlords and multi-site operators
Keeping records across a portfolio is half the battle. Each visit produces a dated report with photos, so you can show an insurer or inspector what was done at each site.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we’re happy to quote for all of it.
What we do, step by step
Our technicians bring everything the work needs, from protective sheeting to tools and access equipment. You only need to give us clear access and switch off what needs to be off. On site, the work takes one overnight shift for many single units, with bigger plant phased. Night and weekend working is normal for us in London, and a site in South Hampstead is no exception.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Getting ready for the visit
- Tell us about site rules, permits or sign-in
- Clear the space around the work
- Plan for cooking equipment or plant to be off before we arrive
How to get a quote
Here’s what helps 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 email photos.
Advice
South Hampstead buildings and their air
Food Standards Agency records list about 70 schools, colleges and universities, about 51 caring premises (care homes, nurseries and hospitals) and about 22 hotels, B&Bs and guest houses registered as food businesses in South Hampstead and the streets around it, up to about 1.5 miles out. Busy, occupied buildings like these are where clean supply air matters most. South Hampstead’s nearest hospital, Hospital of St John and St Elizabeth, is about 0.7 miles south. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. London plant rooms are often on roofs or in basements reached through occupied floors.
If you manage shops or offices close to South Hampstead station, a TR19® Air inspection shows whether the ductwork needs cleaning. Classrooms and halls at schools such as The UCL Academy are easiest to work in when pupils are away.
South Hampstead is about 1 mile south of Hampstead, in Greater London. Sites in South Hampstead get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with pictures. South Hampstead is one of 764 places in Greater London where we work for commercial clients.
We work across the NW3, NW8 and NW6 postcode area for AHU cleaning and the roads nearby. AHU cleaning is available to premises on Avenue Road, Acacia Road and Harben Road and nearby roads. Neighbouring places we cover for AHU cleaning include Swiss Cottage (1 mile north), St John's Wood (1 mile south), Haverstock (1 mile east), Belsize Park (1 mile east) and Primrose Hill (1 mile east). We also work in nearby towns such as London (4 miles south-east), Kensington (3 miles south-west), St Pancras (3 miles south-east), Shoreditch (4 miles east), Walthamstow (7 miles north-east) and Hoxton (4 miles east).
Near you in South Hampstead
Around South Hampstead, our work takes us to kitchens and buildings near Cafe Med pub, St. Mary's Town and Country School and Holy Trinity CofE Primary School. You will also find Cecil Sharp House (1.1 miles east) and Primrose Hill (0.6 miles east). There’s a railway station in South Hampstead itself: South Hampstead station. Nearby you’ll also find Isokon Gallery (0.8 miles north-east) and O2 Centre (0.5 miles north-west). Green spaces nearby include Adelaide Nature Reserve and The Long Water.
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.
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. A clean fan runs more smoothly.
What AHU cleaning cannot fix
Before booking, it helps to know what’s not included:
- Damaged coils beyond cleaning
- Dirty ducts beyond the unit itself
- Breakdowns that need a mechanical engineer
If in doubt, phone us on 0345 646 2711 or drop us a line and we’ll say what we think.
Where we work
- Supply and extract fans
- Filter sections
- Drain trays
- Dampers and louvres
- Internal panels
- Heating and cooling coils