Reading · Air handling unit cleaning
Air handling unit cleaning in Trench Green, Reading
Specialist AHU cleaning for Trench Green: diagnosis first, then a fixed quote, the work and a report with photos. Call for a fixed quote.
- Air handling units never cleaned inside
- Dirty filters cutting the airflow
- Rooms that smell stuffy when the system runs
What we do, step by step
A visit follows the same order every time: protect the area, make the system safe, carry out the AHU cleaning, clear away and hand over the paperwork. On site, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. Pictures of the system and its access let us plan the work in Trench Green before we set off.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- After pictures are taken and the certificate issued.
Getting ready for the visit
- Let us know when the site is closed or quiet
- Let us know how we reach the system, including roofs, risers and plant rooms
- Clear loose items from the work area
How to get a quote
For a fixed quote, ring 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. A few photos and your last certificate or report help a lot. You’ll usually have a quote within one working day.
Advice
AHU cleaning for kitchens and businesses in Trench Green
No two plant rooms are the same, whether it’s a compact unit in a ceiling void or a big unit on the roof. We look at the unit first, from photos or a site visit, and give you a fixed quote before any cleaning starts. Common call-outs are for debris and leaves in the fresh air intake and plant that needs cleaning after a refit, across drain trays, supply and extract fans and internal panels.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Place
- Trench Green (RG4)
- Wider area
- Reading
- Records
- Photo report after every visit
- Quote
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
Different parts, different methods
Drain trays
Condensate from the coil drips into a tray beneath it. We clear standing water, clean out slime and check the outlet is draining.
Filters
What’s on the filters is a good clue to what’s further in. We photograph them for the report.
What AHU cleaning looks like in Trench Green
About 2.6 miles south of Trench Green is Battle Hospital, the nearest hospital. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. Trench Green is about 40 miles from central London, well within the area we cover across London and the South East. Visits are booked around your hours, evenings and weekends included.
For buildings in and around Trench Green, TR19® Air cleaning starts with an inspection.
Trench Green is about 2 miles north-west of Caversham, in Reading. Whatever kind of site you run in Trench Green, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Trench Green is one of 34 places in Reading where we work for commercial clients.
Our technicians cover all of the RG4 postcode area for AHU cleaning and the roads nearby. We also cover the places around Trench Green: Chazey Heath (1 mile east), Mapledurham (1 mile south-west), Purley on Thames (2 miles south-west), Norcot (2 miles south) and Tilehurst (2 miles south). Within a short drive, we also cover West Reading (3 miles south), Shinfield (7 miles south-east), Arborfield Garrison (9 miles south-east), Horncastle (3 miles south), Whitley Wood (6 miles south-east) and Fords Farm (4 miles south).
Landmarks near Trench Green
Typical jobs here are in premises near Pack Horse Public House, among other places. For rail, the closest station is Tilehurst station, roughly 1.7 miles south of the centre. A little further out are Royal Berkshire Regiment Museum (2.6 miles south) and Battle Hospital (2.6 miles south). Not far away are Moor Copse Nature Reserve and Sonning Hill.
Common problems we fix in Trench Green
Air handling units are normally tucked away on roofs, in plant rooms or above ceilings, so they’re easy to forget about. Months can pass without anyone looking inside.
The symptoms we are asked about most include:
- Debris and leaves in the fresh air intake
- Coils clogged with dust and debris
- Drain trays holding standing water
- Air handling units never cleaned inside
Healthcare ventilation, from large hospitals like Battle Hospital (about 2.6 miles south) to small clinics, depends on clean filters, coils and ducts.
Questions to ask before you book
- How they set the interval to the next visit
- Whether the quote is based on a survey or photos
- When they can work, and whether that’s outside your opening hours
- Whether the price is fixed
When it’s something else
In fairness, some problems need a different fix:
- Dirty ducts beyond the unit itself
- Airflow problems caused by the system’s design
- Controls and BMS settings that run the unit
If you’re not sure, just phone us on 0345 646 2711 or use the quote form and we’ll give you a straight answer before booking.
What we work on in Trench Green
- Heating and cooling coils
- Drain trays
- Supply and extract fans
- Dampers and louvres
- Internal panels
- Filter sections
Keeping the system healthy
No system stays clean for ever, but care slows the build-up. Our tips:
- Do not store bins or materials near the intake
- Plan the next inspection before the last report gets filed away
- Report musty smells from the vents straight away
- Change filters on schedule and log each change
You receive a TR19® certificate and a photo report after the clean. They belong in the plant or maintenance log.
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.
What affects the cost of AHU cleaning
Some jobs are bigger than they look, and some smaller. The main factors:
- How many systems or sites are involved
- How big the system is
- Travel, parking and unloading
- Whether it’s a one-off visit or part of a schedule
What you pay depends on how big the system is, what state it’s in and access to every part of it. You get a fixed price before work begins, so there are no surprises.
What we need to know
Photos and a few facts are often enough to price the work. Send what you can of the following:
- Where the site is and what kind of site it is
- Any previous report or certificate
- Wide pictures of the system and the area around it
- The times we could work without disrupting the site
Want a quote for AHU cleaning? Please ring 0345 646 2711 or drop us a line and tell us about the site. We’ll explain what we’d do and send a fixed quote before anything is booked.
Leave it or put it right?
A light clean now is simpler than a heavy one later. Years of build-up make the job longer and harder, especially where there’s been moisture. A planned visit to Trench Green is easier to arrange than an emergency callout.
One small site or a whole estate, the quote is built the same way: the work involved, the access and the timing. The price is fixed before we start.
Why choose Duct Doctor in Trench Green
- We diagnose before we treat
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- A single point of contact for sites across the South East and London
- Every visit written up, with pictures
Take a look at how cleaning jobs are priced or our accreditations and certificates.
Trench Green questions
Is AHU cleaning available in Trench Green?
Yes. We work across London and the South East, and Trench Green is part of that. A fixed quote normally follows within one working day of the survey details.
Do you work at weekends in Trench Green?
Yes, out-of-hours work is a big part of what we do. That way a site in Trench Green doesn’t have to lose a day’s trading. Your opening times are the first thing we ask for.
Can you fix a faulty AHU?
Our AHU work is cleaning rather than mechanical repair. Any faults we notice are recorded so your maintenance contractor can deal with it.
When should our AHU next be cleaned?
There’s no single answer; it comes down to the building and the unit. Inspection tells you when cleaning is needed, and we will suggest an interval after the first clean.
What’s TR19?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It isn’t legislation, but it’s the standard people check against.
Is a quote from pictures possible?
In many cases, yes. With good photos, the site type and your last report, we can price many jobs. Larger or hidden systems need a survey on site first.
Is there a survey before the work?
Yes. We always survey first, from your photos and details, or with a visit where necessary. A fixed quote follows.
Will we get paperwork for the AHU clean?
Yes. You get a TR19® certificate plus before and after photos. Keep them in the maintenance log.