Greater London · Air handling unit cleaning
Richmond upon Thames AHU cleaning
Need AHU cleaning in Richmond upon Thames? We diagnose first, fix the price and book the work around your hours, then sign off with a report and pictures.
- Dust built up on fan impellers
- Intake sections clogged with outdoor debris
- Odours coming through the supply air
What affects the quote in Richmond upon Thames
You’ll get a fixed price before any work starts. It’s based on:
- The condition of the system
- Access, including roofs, risers and ceiling voids
- How big the system is
- Site requirements such as sign-in and permits
One small site or a whole estate, we price it on the same basis: the work involved, the access and the timing. You’ll have a fixed price before any work starts.
Asking for a quote
You do not need the technical terms. It helps if you can send:
- Any previous report or certificate
- Where the site is and what kind of site it is
- When the site is open and when it’s quiet
- The roof, plant room or outside wall the system runs to
To get a fixed quote, call us on 0345 646 2711, or send details by email and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. We usually come back within one working day.
About our AHU cleaning in Richmond upon Thames
We clean the parts of the unit where dirt and moisture gather: the filter section, heating and cooling coils, drain trays, fan and casing. You get a TR19® certificate and a photo report showing the unit before and after. Common call-outs are for dust-coated heating and cooling coils and odours coming through the supply air, on filter sections, dampers and louvres and heating and cooling coils.
In London, plant rooms are often in basements or on roofs reached through occupied floors, so ventilation cleaning in Richmond upon Thames is normally planned out of hours. Loading and parking are planned with the building first.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Where
- Richmond upon Thames (TW9, TW10, SW14, TW1)
- Region
- Greater London
- Records
- Report and pictures after the visit
- Quote
- Fixed quote, usually within a working day
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
When to call us in Richmond upon Thames
Filters that are not changed or cleaned on time clog up, which cuts the airflow and can let air slip round the filter. Then the rest of the unit takes the load.
These are the problems we see most often:
- Plant that needs cleaning after a refit
- Rooms that smell stuffy when the system runs
- Dust-coated heating and cooling coils
- Air handling units never cleaned inside
If you manage offices or shops near Richmond station, their ventilation can be inspected and cleaned out of hours.
What your quote should include
- Whether the price is fixed
- What hours they’ll be on site
- Whether the quote is based on a survey or pictures
- Whether a written report and photos are included
Places near Richmond upon Thames
More services for Richmond upon Thames
Keeping the system healthy
After the visit, a few habits help the work last:
- Clear leaves and litter away from the intake
- Make sure the unit’s access doors open easily
- Do not ignore odours coming through the grilles
- Make sure condensate is draining away
Stick to the filter change schedule, as that does more than anything to keep the unit clean. Record each change in the maintenance log.
Make sure access doors and panels on the unit open easily. If a section is hard to get into, it tends not to get checked.
Richmond upon Thames: your questions answered
Can the work in Richmond upon Thames be done at night or at weekends?
Yes, we can come after you close and finish before you open. It means the site in Richmond upon Thames keeps running as normal. Just call 0345 646 2711, or email photos with your opening times and we will plan around them.
Can you clean school ventilation in Richmond upon Thames during the holidays?
Yes, holiday work suits schools best. Around Richmond upon Thames, the Food Standards Agency lists about 17 schools and colleges with registered kitchens within a mile and a half or so. Tell us your holiday dates and we’ll book the visit for when the site is empty.
What does TR19 mean?
BESA’s ventilation hygiene specification in two main parts: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It is not legislation, but it’s the standard people check against.
Can you look after several sites?
Yes. We work across South East England and London, so we can schedule a run of sites as one programme. Each site gets its own report and photos.
What does AHU cleaning cost?
We do not publish prices, because the cost depends on the job: how big it is, what state it’s in, how we reach it and the working hours. We fix the price before any work starts.
What do you need from me for a quote?
A short description and a few photos plus the address and your hours. If we need more, we will ask.
Are you accredited?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We are fully insured and have been trading since 2009.
Does the AHU have to be shut down for cleaning?
Yes. We can’t clean a running unit, so it’s switched off and made safe first. We agree the timing with your site team.
Why deal with it now?
Dirty coils and fans make the unit strain to move the same air. That means more wear on the motor and rooms that feel less fresh, and a clean on your terms beats a breakdown on nobody’s. A booked night’s work in Richmond upon Thames costs you no trading time; an unplanned closure does.
What you pay depends on the size of the system, the condition it’s in and how easy it is to reach. We give you a fixed price before we start, so you know where you stand.
Why choose Duct Doctor in Richmond upon Thames
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Fixed quotes, usually within one working day
- Ventilation hygiene specialists since 2009
- Out-of-hours work and a 24/7 emergency line
Richmond upon Thames buildings and their air
Going by the FSA’s register, there are about 17 schools, colleges and universities, about 18 hospitals, care homes and childcare premises and about 8 hotels and B&Bs serving food within about 1.5 miles of central Richmond upon Thames. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Many London buildings have had their ductwork altered through several fit-outs, so an inspection comes first. West Middlesex University Hospital is the nearest hospital, about 1.5 miles north-west of Richmond upon Thames. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
Hospitals such as West Middlesex University Hospital (about 1.5 miles north-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near Richmond upon Thames are no different. For schools like Marshgate Primary School, the holidays are the usual time to inspect and clean ventilation.
Richmond upon Thames is about 3 miles south of Ealing, in Greater London. Anywhere in TW9, we can carry out AHU cleaning at your premises. Our Greater London coverage runs to 764 places, Richmond upon Thames among them. You can also see our page for London, about 9 miles away.
We work across the TW9, TW10, SW14 and TW1 postcode area for AHU cleaning and the streets around it. You’ll find streets such as Church Road, King George Square and Topiary Square, all of which we cover for AHU cleaning. With the B321 and B322 close by, Richmond upon Thames is simple for us to get to at any hour. We also cover North Sheen (1 mile north-east), East Sheen (1 mile east), Mortlake (1 mile east), Kew (2 miles north-east) and Strand-on-the-Green (2 miles north-east). Within a short drive, we also cover London (9 miles east), City of Westminster (7 miles north-east), Marylebone (8 miles north-east), Kensington (5 miles north-east), St Pancras (9 miles north-east) and Shoreditch (10 miles north-east).
What’s near Richmond upon Thames
Typical jobs here are in premises near Pesthouse Common, The White Horse Richmond pub and Kneller Hall Junior School, among other places. There’s a railway station in Richmond upon Thames itself: Richmond station. A little further out are Eel Pie Island Museum (1.5 miles south-west) and Treaty Centre (3 miles west). Open spaces near Richmond upon Thames include Duke's Hollow and Richmond Hill.
What staff can safely do
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
How the visit works
When we arrive, we check the system against the survey or the photos you sent. If anything is different, we talk it through with the person on site before carrying on. From there, it takes one overnight shift for many single units, with bigger plant phased. Loading bays, visitor permits and roof access are the first things we ask about for a site in Richmond upon Thames.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Getting ready for the visit
- Let us know about parking and loading
- Tell us about site rules, permits or sign-in
- Let us know how we reach the system, including roofs, risers and plant rooms
Ask for a quote
Quotes are quick. Send a few details and pictures, and we normally reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Advice
What the work involves, part by part
Fans and fan sections
Dust on a fan impeller adds weight and wear. A clean fan runs more smoothly.
Heating and cooling coils
Cooling coils stay damp in use, so dirt on them can turn sticky. The coil and its drain tray are cleaned as one job.