Greater London · Air handling unit cleaning
Air handling unit cleaning in Little Chelsea, Greater London
One call covers air handling unit cleaning in Little Chelsea, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Air handling units due a clean after building work
- Dirty filters cutting the airflow
- Condensate trays that won’t empty
Your questions about AHU cleaning in Little Chelsea
Can you come to Little Chelsea after we close?
Yes, out-of-hours work is a big part of what we do. It means the site in Little Chelsea keeps running as normal. When you ring 0345 646 2711 or email us, mention when the site is quiet.
Can ventilation in schools around Little Chelsea be cleaned out of term?
Yes. Half-terms and the summer break are the natural time for school work. There are about 72 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Little Chelsea. You can phone us on 0345 646 2711 or drop us a line with the dates the site is empty.
How much notice should we give?
For planned work, earlier is better, especially if the next clean or test is due soon. For emergencies, we take calls 24/7.
Do you offer emergency callouts?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
Is there a survey before the work?
Yes. Photos often do the job, while bigger or harder-to-see systems are surveyed on site.
Can we book visits on a schedule?
Yes, of course. Tell us what you have and how it’s used and we’ll propose a schedule with a fixed quote.
Do you give a certificate after the clean?
Yes, both a certificate and a report with pictures. It includes a recommended date for the next check.
What is TR19?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.
AHU cleaning in Little Chelsea, done properly
If the units serving a building in Little Chelsea have only had filter changes for years, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full AHU clean takes in the whole unit. If you’re dealing with filters that are clogged or overdue and air handling units due a clean after building work, we can put it right, from drain trays, dampers and louvres and supply and extract fans onwards.
London buildings tend to keep their plant on the roof or below ground, so work in Little Chelsea is often done in the evening or at weekends. Parking and loading are agreed with the building in advance.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.

- Place
- Little Chelsea (SW10, SW3, SW7)
- Wider area
- Greater London
- Reporting
- Report and photos after the visit
- Quotes
- A fixed quote up front
- Hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Also near Little Chelsea
Also in Little Chelsea
Aftercare tips
Good habits slow the build-up between visits. A few tips:
- Keep the area around the fresh air intake clear
- Book the next check in line with the report
- Report musty smells from the vents straight away
- Change filters on schedule and log each change
When we have closed the unit up, it can be restarted with your site team. Check the drain tray is emptying over the first few days to confirm water is draining away.
Don’t let leaves, litter or stored materials build up near the fresh air intake. What’s near the intake ends up in the unit.
AHU cleaning around Little Chelsea
Going by the FSA’s register, there are about 72 schools, colleges and universities, about 64 hospitals, care homes and childcare premises and about 85 hotels, B&Bs and guest houses serving food within 1.5 miles or so of the middle of Little Chelsea. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. The nearest hospital to Little Chelsea is Chelsea and Westminster Hospital, about under half a mile west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. Getting kit to a London plant room usually means lifts, stairs and an agreed loading slot.
School buildings such as Park Walk Primary School are usually done in the holidays, so classrooms are not disturbed. If you run a surgery, dental practice or care home near Little Chelsea, clean ventilation matters as much to you as to a hospital like Chelsea and Westminster Hospital (about under half a mile west). For workplaces around Imperial Wharf station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Little Chelsea is about 1 mile north of World's End, in Greater London. We carry out AHU cleaning for businesses, landlords and public buildings in Little Chelsea and the rest of Greater London. Our area takes in 764 places across Greater London, large and small.
Our technicians cover all of the SW10, SW3 and SW7 postcode area for AHU cleaning and the roads nearby. We cover sites on Ann Lane, King's Road and Lamont Road and nearby roads. Other places close to Little Chelsea include World's End (1 mile south), South Kensington (1 mile north), Chelsea (1 mile north-east), Chelsea Harbour (1 mile south) and Walham Green (1 mile south-west). Within a short drive, we also cover London (4 miles east), Marylebone (3 miles north-east), St Pancras (4 miles north-east), Shoreditch (5 miles north-east), Walthamstow (10 miles north-east) and Hoxton (5 miles north-east).
Around Little Chelsea
In Little Chelsea, that means kitchens and buildings near Burton’s Court, English National Ballet School and Natural History Museum Library and Archives. Nearby too are Chelsea Academy (0.5 miles south-west) and The World's End pub (under half a mile south). The nearest railway station is Imperial Wharf station, about 0.7 miles south of the centre. Nearby you will also find Baynard's Castle (3.8 miles north-east) and Chelsea Stadium Tour And Museum (0.6 miles south-west). Green spaces nearby include Campden Hill and WWT London Wetland Centre.
How we price AHU cleaning
The price is fixed before any work begins. It’s based on:
- The number of sites or systems
- Access, including roofs, risers and ceiling voids
- What state the system is in
- A single visit or a regular plan
Working hours, access and the scale of the site can all change the price. Each of those is built into the quote, and the price is fixed before any work starts.
Helping us quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- How we’d reach plant on a roof or in a plant room
- When the site is open and when it’s quiet
- A few general shots of the system
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
How the visit works
Protection comes first: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. It takes a single shift for a typical unit, longer for large or heavily soiled ones, and the area is cleaned down before we leave. Before any visit in Little Chelsea, we agree where the van can stop and how equipment reaches the system.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Make sure someone can let us in and lock up afterwards
- Dig out any earlier paperwork for the system
How to get a quote
The quickest way to a quote is to send photos: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and we can price many jobs without a visit.
Read more
Different parts, different methods
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. The intake section gets particular attention.
Filters
Filter condition tells you a lot about the rest of the unit. They’re photographed before and after for your records.
Honest limits
We’d rather tell you now than book work that won’t help, so here are the limits:
- Breakdowns that need a mechanical engineer
- Building management system faults
- The supply and extract ducts, quoted separately
If in doubt, call us on 0345 646 2711 or send us an email and we’ll say what we think.
Where we work
- Supply and extract fans
- Dampers and louvres
- Filter sections
- Internal panels
- Heating and cooling coils
- Drain trays
What staff can safely do
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, they should report it rather than try to fix it. We will take a look and send you a fixed quote.
Why act early in Little Chelsea
Facilities teams are often asked for evidence that the ventilation is looked after. A TR19® certificate and photo report give you that, for audits, tenants or your own peace of mind. Every month a London system goes without attention adds to what has to be done later.
Combining work into one visit or one programme can make for a more efficient booking. Tell us about everything you’d like looked at, and you’ll get one fixed quote.
Why Little Chelsea businesses choose us
- Work around your opening hours, with 24/7 emergency cover
- Fully insured
- A written report with pictures after each visit
- One contact for all your sites in London and the South East
See how cleaning jobs are priced and how to check a contractor.