Greater London · Air handling unit cleaning
Air handling unit cleaning in Southfields, Greater London
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for Southfields, with a survey first and a report with photos at the end. Ask us for a fixed quote.
- Units that have only ever had filter changes
- Dust-coated heating and cooling coils
- Stale or musty smells from the ventilation
AHU cleaning for kitchens and businesses in Southfields
Units vary a lot in size, age and layout, from a small ceiling-mounted unit to a large rooftop plant. We look at the unit first, from photos or a site visit, and send you a fixed quote before any cleaning starts. If you are dealing with plant that has been serviced but not cleaned and drain trays holding standing water, we can put it right, from heating and cooling coils, drain trays and dampers and louvres onwards.
London buildings often depend on air handling units in plant rooms or on the roof to supply fresh air. For a building in Southfields, 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 written report, dated and illustrated with photos, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.

- Location
- Southfields (SW18, SW19, SW17)
- Wider area
- Greater London
- Records
- Written report with photos
- Quote
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Checked
- 30 October 2026
How the visit works
There are three stages on the day: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with pictures. Most of the time goes on the work itself, and that takes from a few hours for a compact unit to a day or more for a large one. If your building in Southfields has sign-in rules, permits or key holders, mention them when you book.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before photos of each section of the unit.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- After photos are taken and the certificate issued.
Getting ready for the visit
- Make sure equipment near the work can be switched off and left to cool
- Dig out any earlier paperwork for the system
- Let us know how we reach the system, including roofs, risers and plant rooms
Get a fixed quote
If you need AHU cleaning in Southfields, give us a ring on 0345 646 2711, or send details by email. Tell us what kind of premises it is and when it’s open, and send pictures or your last report if you can. A fixed quote usually follows within one working day.
Advice
Between visits
After the visit, a few habits help the work last:
- Keep inspection doors on the unit in good order
- File each AHU report in the maintenance log
- Keep the area around the fresh air intake clear
- Report musty smells from the vents right away
The report shows each section of the unit before and after, along with anything we couldn’t reach. It also notes faults we spotted, such as damaged panels or a blocked drain.
Make sure access doors and panels on the unit open easily. Sections that are awkward to open are the ones that get skipped.
For landlords and multi-site operators
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so each one has its own record.
Whether it’s one building or many, the standard is the same: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.
What AHU cleaning looks like in Southfields
Going by the FSA’s register, there are about 21 schools, colleges and universities, about 50 hospitals, care homes and childcare premises and about 3 hotels and B&Bs serving food within roughly a mile and a half of the centre of Southfields. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. Ventilation cleaning in London buildings is usually planned for evenings or weekends. About 1 mile west of Southfields is Royal Hospital for Neuro-disability, the nearest hospital. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
If you manage a school such as Floreat Wandsworth Primary School, ventilation cleaning is best booked for the holidays. Healthcare buildings such as Royal Hospital for Neuro-disability, about 1 mile west, depend on their ventilation; if you manage a surgery, clinic or care home near Southfields, yours matters too.
Southfields is about 2 miles north-east of Wimbledon, in Greater London. For AHU cleaning in and around Southfields, it’s easy to get a fixed quote: please call 0345 646 2711 or email us. We work across South East England and London, including Southfields. Southfields is one of 764 towns, villages and districts in Greater London we cover for AHU cleaning. There’s also a page for London, about 6 miles away.
Postcode districts we cover here for AHU cleaning: SW18, SW19 and SW17. Whether your site is on Burr Road, Acuba Road and Mount Road or a nearby road, we can help. Close by, we work in Earlsfield (1 mile south-east), Wandsworth (1 mile north), Summerstown (1 mile south), Battersea (2 miles north-east) and Clapham Junction (2 miles north-east). Larger places within reach include London (6 miles north-east), City of Westminster (5 miles north), Marylebone (5 miles north), Kensington (4 miles north), St Pancras (6 miles north-east) and Shoreditch (7 miles north-east).
What’s near Southfields
Locally, jobs take us to businesses close to Old Sergeant pub, Southfields Academy and Wandsworth School. Southfields has its own railway station: Earlsfield station. A little further out are Royal Hospital for Neuro-disability (1 mile west) and Wimbledon Lawn Tennis Museum (1.2 miles south-west). Not far away are Henman Hill and Wandle Meadow Nature Park.
What happens if it’s left?
If people in a building in Southfields complain about stuffy or smelly air, the AHU is worth looking at. Cleaning it deals with the cause rather than the symptom. In a London building, a problem in a duct, damper or fan rarely stays in one unit.
We do not list prices on the website, because each job is priced on what it involves. For a fixed quote, ring 0345 646 2711 or drop us a line, and we’ll explain what it covers.
Why Southfields businesses choose us
- We diagnose before we treat
- One number for every site across the South East and London
- CHAS, SafeContractor and ISO 9001
- Ventilation hygiene specialists since 2009
Read what affects the cost and our accreditations and certificates.
Southfields: your questions answered
Is parking a problem for work in Southfields?
Parking and loading in London need planning, so tell us about bays, permits and building rules when you book. Much of our London work is done overnight, which helps.
Can ventilation in schools around Southfields be cleaned out of term?
Yes, holiday work suits schools best. The FSA’s register shows about 21 schools and colleges with food registrations within roughly a mile and a half of Southfields. Booking early in the term gives the best choice of holiday dates.
Do you clean the ductwork as well?
Yes, the ductwork, grilles and diffusers the unit serves. The survey shows whether the ducts need cleaning now.
How long does it take to clean an air handling unit?
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 we will confirm the time when we quote.
Is a quote from photos possible?
Yes, for many jobs. Send wide shots, close-ups of any access panels and anything that worries you, and a fixed quote usually follows within one working day. Some sites still need a visit, and we’ll say so.
Do you cover Southfields?
Yes. Southfields is part of the area we cover, as part of our area across London and the South East.
How much notice do you need?
That depends on the slot you want and the size of the job. Tell us your preferred dates when you ask for a quote, and for anything urgent, ring our 24/7 emergency line.
What’s TR19?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
What a clean will not put right
We will not sell you work that does not address the problem, so here are the limits:
- Ventilation that was badly designed in the first place
- Breakdowns that need a mechanical engineer
- The supply and extract ducts, quoted separately
If in doubt, phone us on 0345 646 2711 or use the quote form and we’ll say what we think.
What the work covers
- Drain trays
- Dampers and louvres
- Filter sections
- Internal panels
- Supply and extract fans
- Heating and cooling coils
Part by part
Drain trays
Drain trays can rust and leak over time. We record their condition with photos so repairs can be planned.
Internal casing and panels
Dust settles on every internal surface of the unit. We clean each section from intake to discharge.
Also near Southfields
More services for Southfields
Common problems we fix in Southfields
Mechanical servicing keeps a unit running, but it doesn’t always include cleaning the inside. So a unit can be well maintained and still dirty.
Signs it’s time to call us include:
- Dust built up on fan impellers
- Leaves and litter drawn into the unit
- Plant that has been serviced but not cleaned
- Odours coming through the supply air
For workplaces around Earlsfield station with mechanical ventilation, cleaning can be done in the evening or at weekends.
What your quote should include
- Whether a written report and pictures are included
- When the next visit should be, and why
- Proof of insurance
- Whether the quote shows VAT