Greater London · Air handling unit cleaning
AHU Cleaning in Richmond
AHU cleaning for Richmond and the surrounding area: diagnosis first, then a fixed quote, the work and a report with pictures. Call for a fixed quote.
- Debris and leaves in the fresh air intake
- Plant that has been serviced but not cleaned
- Plant that needs cleaning after a refit
How the job changes from site to site
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. We clean them with care so the fins are not damaged.
Drain trays
A tray that doesn’t drain becomes a pool of stagnant water in the airstream. We clean it and note if the slope or the drain needs attention.
AHU cleaning for kitchens and businesses in Richmond
Coils are where a lot of the dirt ends up. A coated coil restricts airflow and makes the unit work harder. Coils are cleaned carefully, with methods chosen so the fins aren’t flattened. If you have plant that needs cleaning after a refit and dirty filters cutting the airflow, we can help.
Across London, offices, hotels, schools and healthcare buildings rely on mechanical ventilation, much of it supplied through air handling units on roofs or in basements. In a building in Richmond, dust and debris build up in the units and ductwork over time.
Accreditations are easy to claim and worth checking. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Where
- Richmond (TW9, TW1, TW10)
- Wider area
- Greater London
- Paperwork
- Written report with pictures
- Quote
- A fixed quote up front
- Working hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
FAQs for Richmond
Does London parking affect a job in Richmond?
Tell us where a van can stop near your site in Richmond, and about any building rules on loading. If the building has a loading slot system, we will book into it.
Can you come to Richmond after we close?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. When you call 0345 646 2711 or use the quote form, mention when the site is quiet.
What happens if you can’t reach some of it?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
Is there a survey before the work?
Yes. We always survey first, either from photos and details you send or on a site visit. Then you get a fixed quote.
Where does the waste go?
Anything we remove is contained as we work and taken away with us, from grease and debris to used cleaning water. None of it is left on site.
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 the quote will give you a clear idea.
Do you do ventilation duct cleaning too?
Yes. Ventilation ductwork cleaning to TR19® Air is part of what we do. It’s often worth doing both at once, and we can survey both on the same visit.
Which kinds of sites do you work on?
Commercial premises of every kind: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. Work is timed around how each site runs.
Honest limits
Some problems need a different service or another trade:
- Coils that are corroded or leaking and need replacing
- A system that is undersized for the building
- Dirty ducts beyond the unit itself
If in doubt, phone us on 0345 646 2711 or send us an email and we’ll say what we think.
What we work on in Richmond
- Supply and extract fans
- Filter sections
- Heating and cooling coils
- Drain trays
- Dampers and louvres
- Internal panels
Towns and villages near Richmond
More services for Richmond
The process
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and the same goes into the written report. The visit takes anything from half a day for one small unit to several shifts for a plant room full of them. Most London sites cannot stop for the day, so work in Richmond is typically done overnight, early in the morning or at weekends.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- 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
- Make sure equipment near the work can be switched off and left to cool
- Make sure someone can let us in and lock up afterwards
- Let us know about parking and loading
Ask for a quote
Quoting starts with a diagnosis, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price, before work begins.
Read more
Between visits
To keep the system working properly between visits:
- Diary the inspection date recommended in the report
- Report stiff or damaged access doors
- Keep the area around the fresh air intake clear
- Keep the certificate and photo report with the plant records
The report shows each section of the unit before and after, and note any part we couldn’t get to. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Make the drain tray part of every maintenance visit. Catching a slow drain early stops standing water building up.
In-house cleaning or a specialist?
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
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.
For landlords and multi-site operators
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we are happy to quote for all of it.
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.
AHU cleaning around Richmond
Food Standards Agency records list about 13 schools, colleges and universities, about 22 care, childcare and hospital premises and about 6 hotels, B&Bs and guest houses registered as food businesses in Richmond 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. About 1.6 miles west of Richmond is South Middlesex Hospital, the nearest hospital. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. Many London buildings have had their ductwork altered through several fit-outs, so an inspection comes first.
Healthcare buildings such as South Middlesex Hospital, about 1.6 miles west, depend on their ventilation; if you manage a surgery, clinic or care home near Richmond, yours matters too. Wherever a school like The Vineyard School has ducted ventilation, a half-term visit keeps the work out of lesson time. If you run an office near Richmond station, its supply ductwork can gather dust for years before anyone looks inside.
Richmond is about 5 miles south-west of Kensington, in Greater London. We carry out AHU cleaning for businesses, landlords and public buildings in Richmond and the rest of Greater London. Richmond is one of 764 towns, villages and districts in Greater London where we work for commercial clients. London is in our area too, around 9 miles away.
AHU cleaning in TW9, TW1 and TW10 follows the same survey, fixed quote and written report as everywhere else we cover. AHU cleaning is available to premises on Kew Road, Dee Road and Park Road and the roads around them. If your site is just outside Richmond, we cover Petersham (1 mile south), St Margarets (1 mile west), Eel Pie Island (1 mile south-west), Ham (1 mile south) and Isleworth (2 miles north-west). Within a short drive, we also cover London (9 miles east), City of Westminster (8 miles north-east), Marylebone (8 miles north-east), Kensington (5 miles north-east), St Pancras (9 miles north-east) and Shoreditch (11 miles north-east).
Near you in Richmond
In Richmond, that means kitchens and buildings near The Victoria pub, Christ's Church of England Comprehensive Secondary School and Terrace and Buccleuch Gardens, among other places. For rail, the closest station is Richmond station, roughly 0.5 miles north of the centre. A little further out are Eel Pie Island Museum (1.2 miles south-west) and South Middlesex Hospital (1.6 miles west). The countryside around Richmond includes Richmond Hill and Ham Lands.
Why it’s worth doing now in Richmond
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. A busy site in Richmond builds up dirt and wear quickly, so putting it off makes the eventual job larger.
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Why us?
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Every visit written up, with pictures
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- CHAS and SafeContractor accredited, with ISO 9001
Read what affects the cost and our accreditations and certificates.