Greater London · Air handling unit cleaning
Air handling unit cleaning in Clapham, Greater London
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for commercial sites in Clapham and across Greater London. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Air handling units with blocked filters
- Units that have only ever had filter changes
- Dust built up on fan impellers
Landlords, agents and facilities managers
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
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.
AHU cleaning in Clapham
We clean air handling units for buildings in Clapham and across Greater London, working to TR19® Air, in buildings such as offices, schools, healthcare sites and shops. Units are cleaned when the site can spare them, often evenings, overnight or weekends. We’re often asked to deal with leaves and litter drawn into the unit and dust-coated heating and cooling coils, across supply and extract fans, drain trays and filter sections.
London buildings tend to keep their plant on the roof or below ground, so work in Clapham is often done in the evening or at weekends. Parking and loading are agreed with the building in advance.
The paperwork matters as much as the work. Each visit is written up with photos, listing what was done, anything we couldn’t reach and when the next visit is due. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Place
- Clapham (SW4, SW8, SW9)
- Region
- Greater London
- Records
- Report and pictures after the visit
- Quote
- Fixed quote, typically within a working day
- Hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Common questions in Clapham
Can you clean school ventilation in Clapham during the holidays?
Yes, holiday work suits schools best. There are about 54 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Clapham. You can ring 0345 646 2711, or send details by email with the dates the site is empty.
Can you work in Clapham outside opening hours?
Yes, evening, overnight and weekend work is normal for us. That way a site in Clapham does not have to lose a day’s trading. When you give us a ring on 0345 646 2711 or send us an email, mention when the site is quiet.
How do you keep the site clean during the work?
We start with protection: floor sheeting and covers over nearby surfaces and equipment. We tidy up and take our waste away before we leave.
Can you price the work without visiting?
Often, yes. Photos of the system and the access, plus your opening hours and last report, are often enough. Larger or hidden systems need a survey on site first.
Will you repair the fan or motor?
Our AHU work is cleaning rather than mechanical repair. If we spot a fault, we note it in the report for your maintenance team to follow up.
Is Clapham in your area?
Yes. We work in Clapham and the rest of Greater London, as part of our work across South East England and London. For a fixed quote, call 0345 646 2711, or send details by email.
What accreditations do you have?
We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
Can you clean the ducts connected to the AHU?
Yes. We clean supply and extract ductwork to TR19® Air as well. Cleaning the unit and ducts together often makes sense, and we can quote for both.
Places near Clapham
What else we do in Clapham
What affects the quote in Clapham
Some jobs are bigger than they look, and some smaller. The main factors:
- Access, including roofs, risers and ceiling voids
- When the work can happen, such as evenings, overnight or weekends
- The number of sites or systems
- Where the site is and how we reach it
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered and we’ll price it together.
Helping us quote
When you contact us, these details help:
- Close-ups of filters, grilles, hatches or access panels
- The site address and the type of premises
- Problems your staff have spotted
- The paperwork from the last visit, if you have it
Getting a quote does not take long. Send a few details and photos, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
What happens on the day
The visit has three parts: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, while signing off means the written report and pictures. The middle part takes longest, which takes anything from half a day for one small unit to several shifts for a plant room full of them. Before any visit in Clapham, we agree where the van can stop and how equipment reaches the system.
- We start with a survey of the unit and a fixed quote for the work.
- The unit is shut down with your site team and the area protected.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- We clean out the drain tray and make sure it drains.
- You get a TR19® certificate and a photo report.
Preparing for the visit
- Tell us where we can park and unload
- Let us know when the site is closed or quiet
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
Getting a quote
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and many jobs can be priced from that alone.
Read more
Aftercare tips
Here’s the after-treatment advice, short and simple:
- Check the drain tray is emptying during routine visits
- Don’t store bins or materials near the intake
- Change filters on schedule and log each change
- Store the TR19 paperwork where auditors can find it
Keep filter changes on schedule between cleans, as that does more than anything to keep the unit clean. Log every change so it’s easy to see when the next is due.
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.
When it’s something else
It’s worth knowing the limits before booking:
- Airflow problems caused by the system’s design
- Leaking heating or cooling coils
- Breakdowns that need a mechanical engineer
If in doubt, give us a ring on 0345 646 2711 or use the quote form and we will say what we think.
Parts of the system we cover
- Dampers and louvres
- Drain trays
- Supply and extract fans
- Heating and cooling coils
- Internal panels
- Filter sections
AHU cleaning around Clapham
Food Standards Agency data includes about 54 schools, colleges and universities, about 62 caring premises (care homes, nurseries and hospitals) and about 10 hotels and guest houses in Clapham and the streets around it, up to about 1.5 miles out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. The nearest hospital to Clapham is Battersea General Hospital, about 1.3 miles north-west. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital. Getting kit to a London plant room typically means lifts, stairs and an agreed loading slot.
If you manage a school such as Clapham Manor Primary School, ventilation cleaning is best booked for the holidays. For workplaces around Clapham High Street station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Clapham is about 3 miles north of Streatham, in Greater London. Whatever kind of site you run in Clapham, AHU cleaning is something we can help with. We can work out of hours so the site keeps running. Clapham is one of 764 places in Greater London where we work for AHU cleaning.
Our technicians cover all of SW4, SW8 and SW9 for AHU cleaning and the roads nearby. That includes premises on Grafton Square, Clapham High Street and Houghton Square and nearby roads. Clapham is on the B224 and B303, so it’s easy for us to get to for out-of-hours visits. Nearby, we also carry out AHU cleaning in Stockwell (1 mile east), Little Portugal (1 mile north-east), Clapham Park (1 mile south), South Lambeth (1 mile north-east) and Brixton (1 mile south-east). Within a short drive, we also cover London (3 miles north-east), City of Westminster (3 miles north), Marylebone (4 miles north), Kensington (4 miles north-west), St Pancras (4 miles north) and Shoreditch (5 miles north-east).
What’s near Clapham
Around Clapham, our work takes us to kitchens and buildings near Lambeth Academy, Larkhall Park and Trinity Academy. Clapham has its own railway station: Clapham High Street station. Other landmarks nearby include Baynard's Castle (3.5 miles north-east) and Harrods (2.6 miles north-west). Green spaces nearby include Battersea Park Lake and Knight's Hill.
What your team can do, and what needs us
Staff cleaning doesn’t replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
When to call us in Clapham
It matters for two reasons: air quality, since the unit feeds occupied rooms, and performance, since dirt makes it strain. For the people using the building every day, that’s the air they breathe for hours on end.
Keep an eye out for any of the following:
- Dust-coated heating and cooling coils
- Condensate trays that won’t empty
- Air handling units with blocked filters
- Dust built up on fan impellers
If you run a surgery, dental practice or care home near Clapham, clean ventilation matters as much to you as to a hospital like Battersea General Hospital (about 1.3 miles north-west).
What to look for in a quote
- Which accreditations they hold, and whether you can check them
- What happens if part of the system cannot be accessed
- If the quote is a fixed price or an estimate
- If they look at the system before pricing