Wokingham · Air handling unit cleaning
Air handling unit cleaning in Twyford, Wokingham
Specialist AHU cleaning for Twyford: diagnosis first, then a fixed quote, the work and a report with pictures. Ask us for a fixed quote.
- Intake sections clogged with outdoor debris
- Drain trays holding standing water
- Units needing a clean before a new tenant or handover
Common questions in Twyford
Do you do school ventilation cleaning in Twyford in the summer holidays?
Yes. The holidays are the usual time for school work. Around Twyford, the Food Standards Agency lists about 4 schools and colleges with registered kitchens within a mile and a half or so. Booking early in the term gives the best choice of holiday dates.
Do you cover smaller places like Twyford?
Yes, we work in villages as well as towns, and Twyford is covered. Just mention lanes, gates or anything else about the site when you book.
How do you protect the area?
Floors and surfaces near the work are sheeted before we start, and waste is contained as we go. Before we leave, we tidy up and clean down.
Is there a report after cleaning?
Yes. A TR19® certificate and photo report are sent after the clean, including anything we think needs attention.
Which accreditations do you hold?
We hold CHAS, SafeContractor and ISO 9001, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
What’s included in an AHU clean?
The main parts are the filters, coils, drain tray, fan and inside of the casing. The survey confirms what’s in your unit before we quote.
What do you do with what you remove?
Waste is contained during the work and removed when we leave, including grease, debris and dirty water. None of it is left on site.
How far ahead should we book?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.
About our AHU cleaning in Twyford
Heating and cooling coils trap dust that gets past the filters. A coated coil restricts airflow and makes the unit work harder. We clean coils with methods suited to their condition, taking care not to damage the fins. Typical jobs include dust-coated heating and cooling coils and air handling units due a clean after building work, across supply and extract fans, dampers and louvres and drain trays.
In a place like Twyford, air handling units are often tucked into roof spaces or small plant rooms, where they’re easy to forget. Filters, coils and drain trays need attention whatever the size of the unit.
The report is your system’s health record: dated, with photos, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Where
- Twyford (RG10)
- Wider area
- Wokingham
- Records
- Report and photos after the visit
- Price
- Fixed quote, usually within a working day
- Working hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Different parts, different methods
Drain trays
A tray that doesn’t drain becomes a pool of stagnant water in the airstream. We clean it and report anything about the tray or drain that needs fixing.
Filters
Clogged filters reduce airflow, and dirt can get round the edges. We clean the frames and rails so the filters sit tight.
Also near Twyford
Other services in Twyford
For landlords and multi-site operators
We work for landlords, managing agents and facilities managers as well as the people running the site. 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.
Facilities teams in offices, schools and healthcare sites book us too across Wokingham. Larger estates can be phased building by building around the people who use them.
Between visits
So the system stays in good health:
- Clear leaves and litter away from the intake
- Note any water around the unit or leaks below it
- Flag stale or damp smells in the supply air
- Check the drain tray is emptying during routine visits
Photos in the report cover the filters, coils, drain tray, fan and casing, along with anything we couldn’t reach. It also notes faults we spotted, such as damaged panels or a blocked drain.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
How the visit works
Our technicians bring everything the work needs, from protective sheeting to tools and access equipment. All we need from you is clear access and the right equipment switched off. On site, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. In a smaller place like Twyford, parking is rarely the issue, but tell us about gates, roof access and opening hours.
- We start with a survey of the unit and a fixed quote for the work.
- We arrange the shutdown with your staff and sheet the area.
- Filters, coils, fan section and casing are cleaned in turn.
- Drain trays are cleared and cleaned and the outlet checked.
- A TR19® certificate and photo report follow the clean.
How to prepare
- Have your last certificate or report to hand
- Tell us the best time to work, such as after service or at a weekend
- Let us know how we reach the system, including roofs, risers and plant rooms
How to get a quote
Quoting starts with a diagnosis, either from pictures and details you send or from a site visit. Then we send a fixed price, before any work starts.
Advice
Twyford buildings and their air
Going by the FSA’s register, there are about 4 schools, colleges and universities and about 7 caring premises (care homes, nurseries and hospitals) serving food within roughly a mile and a half of the centre of Twyford. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Twyford is about 33 miles from central London, well within the area we cover across London and the South East. Evening, overnight and weekend visits are all possible. Twyford’s nearest hospital, Royal Berkshire Hospital, is about 4.5 miles south-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
Healthcare buildings such as Royal Berkshire Hospital, about 4.5 miles south-west, depend on their ventilation; if you manage a surgery, clinic or care home near Twyford, yours matters too. If you manage shops or offices close to Twyford station, a TR19® Air inspection shows whether the ductwork needs cleaning.
Twyford is about 2 miles north-east of Woodley, in Wokingham. Whatever kind of site you run in Twyford, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. Twyford is one of 35 places in Wokingham where we work for commercial clients.
Here we cover the RG10 postcode area for AHU cleaning. That includes premises on Station Road, High Street and London Road and the roads around them. Other places close to Twyford include Ruscombe (1 mile north-east), Charvil (1 mile west), Whistley Green (1 mile south), Hare Hatch (1 mile north-east) and Hurst (2 miles south). Further out, we also cover Reading (5 miles south-west), Wokingham (5 miles south), Earley (4 miles south-west), Crowthorne (8 miles south), Lower Earley (4 miles south-west) and Winnersh (3 miles south).
Landmarks near Twyford
We work in commercial kitchens and buildings around Loddon Nature Reserve, The Piggott School and Blessed Hugh Faringdon Catholic School and the streets around them. There’s a railway station in Twyford itself: Twyford station. Nearby you’ll also find Royal Berkshire Hospital (4.5 miles south-west) and Frazer Nash Archives (3.8 miles north). Green spaces nearby include South Lake and Alder Moors.
When it’s something else
To be straight with you, some problems need a different fix:
- Dirty ducts beyond the unit itself
- Ventilation that was badly designed in the first place
- Controls and BMS settings that run the unit
Not sure which it is? You can ring 0345 646 2711, or email photos and we will tell you honestly before booking.
Parts of the system we cover
- Internal panels
- Supply and extract fans
- Dampers and louvres
- Filter sections
- Drain trays
- Heating and cooling coils
Do you need AHU cleaning in Twyford?
Mechanical servicing keeps a unit running, but it does not always include cleaning the inside. So a unit can be well maintained and still dirty.
Look out for these warning signs:
- Dirty filters cutting the airflow
- Condensate trays that will not empty
- Units that have only ever had filter changes
- Stale or musty smells from the ventilation
For schools like Polehampton Church of England Infant School, the holidays are the usual time to inspect and clean ventilation.
What to look for in a quote
- What paperwork you get at the end
- What hours they’ll be on site
- Proof of insurance
- If they look at the system before pricing
Leave it or put it right?
Standing water in a drain tray doesn’t clear itself. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Clearing it now is a much smaller job. A visit arranged in advance is far less disruptive than a callout on a busy day.
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are not sure what’s needed, call us on 0345 646 2711 or email us for straight advice and a fixed quote.
Why choose Duct Doctor in Twyford
- Work around your opening hours, with 24/7 emergency cover
- Fully insured
- CHAS and SafeContractor accredited, with ISO 9001
- Fixed quotes, usually within one working day