West Berkshire · Air handling unit cleaning
AHU Cleaning in Theale
Professional AHU cleaning in and around Theale, timed so the site keeps working and finished with a written report and photos.
- Units needing a clean before a new tenant or handover
- Condensate trays that won’t empty
- Coils clogged with dust and debris
How we handle AHU cleaning in Theale
If the units serving a building in Theale have only had filter changes for years, there may be dirt on the coils, fan and casing that nobody has looked at. A full AHU clean takes in the whole unit. Typical jobs include stale or musty smells from the ventilation and dust built up on fan impellers, on internal panels, dampers and louvres and drain trays.
Around a place like Theale, ventilation systems tend to be in schools, surgeries, care homes and workplaces. Even a small system collects dust in its ducts and filters.
We’ve been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Where
- Theale (RG7)
- Wider area
- West Berkshire
- Reporting
- Report and pictures after the visit
- Price
- A fixed quote up front
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
How we price AHU cleaning
We quote each job individually. This is what makes a difference:
- One-off work versus a regular cycle
- Any permits to work or inductions
- Whether we need access equipment or extra panels
- How big the system is
Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we’ll go through it with you.
What to send for a quote
Before you ask for a quote, gather:
- The postcode and the type of business
- Detail shots of panels, filters and grilles
- Your opening hours and when the area is out of use
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
To get a fixed quote, phone us on 0345 646 2711 or send us an 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. You’ll usually have a quote within one working day.
How the job changes from site to site
Heating and cooling coils
A dirty coil holds back the air and makes heating and cooling less effective. A clean gets air moving through the coil properly again.
Internal casing and panels
The inside walls and floor of the casing collect dust and debris. Each section is cleaned from the intake through to the outlet.
Places near Theale
What else we do in Theale
Landlords, agents and facilities managers
We also work for facilities teams across offices, schools and healthcare in Theale and across West Berkshire. Work can be phased by floor, building or site to keep disruption down.
Running several sites is easier with one contractor. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
Looking after it afterwards
Simple habits between visits make a real difference. We recommend:
- Report musty smells from the vents right away
- Clear leaves and litter away from the intake
- Store the TR19 paperwork where auditors can find it
- Plan the next inspection before the last report gets filed away
Photos in the report cover the filters, coils, drain tray, fan and casing, along with anything we couldn’t reach. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Check drain trays and condensate drains during routine maintenance. A drain that’s cleared early never gets to the slime stage.
What AHU cleaning looks like in Theale
Going by the FSA’s register, there are about 6 schools, colleges and universities and about 5 hospitals, care homes and childcare premises serving food in and around Theale, up to about a mile and a half out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Battle Hospital is the nearest hospital, about 3.8 miles north-east of Theale. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. We cover Theale, about 43 miles from central London, as part of our work across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site.
If you run an office near Theale station, its supply ductwork can gather dust for years before anyone looks inside. Healthcare buildings such as Battle Hospital, about 3.8 miles north-east, depend on their ventilation; if you manage a surgery, clinic or care home near Theale, yours matters too. If you manage a school such as Theale C.E. Primary School, ventilation cleaning is best booked for the holidays.
Theale is about 4 miles west of Reading, in West Berkshire. From the centre of Theale to the outskirts, AHU cleaning is available to all kinds of commercial premises, from a single unit to a large public building. Theale is one of 155 places in West Berkshire where we work for commercial clients.
Our technicians cover all of the RG7 postcode area for AHU cleaning and the roads nearby. Whether your site is on Station Road, High Street and Bath Road or a nearby road, our technicians can take on the work. Other places close to Theale include Sheffield Bottom (1 mile south-east), Englefield (1 mile north-west), Calcot (1 mile east), Beansheaf Farm (1 mile east) and Trash Green (2 miles south-east). Within a short drive, we also cover Newbury (11 miles west), Thatcham (8 miles west), Burghfield Common (3 miles south), Speenhamland (11 miles west), Spencers Wood (5 miles south-east) and Shaw (10 miles west).
Near you in Theale
Locally, jobs take us to businesses close to Theale Green Community School, Red Lion pub and Calcot Park and the streets around them. Theale has its own railway station: Theale station. A little further out are Battle Hospital (3.8 miles north-east) and Thames Valley Police Museum (1.2 miles south). Green spaces nearby include Hosehill Lake and Moor Copse Nature Reserve.
Questions from Theale
Do you work in villages like Theale?
Yes. Theale is within the area we cover across London and the South East. A survey first, from photos or a visit, means we arrive with the right kit.
Do you work overnight in Theale?
Yes, nights and weekends are routine for us. Your customers, staff or residents in Theale needn’t be disturbed. Let us know the hours you’re closed and we’ll book within them.
Where does the waste go?
We contain it and take it with us. We collect grease, debris and waste water as we go, so it does not spread.
How often should an air handling unit be cleaned?
TR19® Air takes a risk-based approach, so it depends on inspection rather than a fixed interval. We recommend a next date in each report.
Can you price the work without visiting?
Yes, where the pictures show enough. Otherwise, we book a survey at a time that suits the site, and the quote follows that.
Can you set up regular visits?
Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. The report from each visit recommends the next date.
Will we get paperwork for the AHU clean?
Yes. You get a TR19® certificate plus before and after pictures. They’re worth keeping with the plant records.
Do you have insurance?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
Honest limits
We won’t sell you work that doesn’t address the problem, so here are the limits:
- A system that’s undersized for the building
- Damaged coils beyond cleaning
- Dirty ducts beyond the unit itself
Not sure which it is? You can phone us on 0345 646 2711 or drop us a line and we’ll tell you honestly before you book.
Where we work
- Supply and extract fans
- Drain trays
- Filter sections
- Internal panels
- Heating and cooling coils
- Dampers and louvres
How it works
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. On site, the work takes from a few hours for a compact unit to a day or more for a large one. Because the survey comes first, a visit to Theale can typically be finished without a second trip.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Preparing for the visit
- Mention any locked doors, roof access or ceiling voids
- Let us know about parking and loading
- Tell us about site rules, permits or sign-in
Getting a quote
There’s no standard price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To get going, ring 0345 646 2711 or email us.
Related advice
What your team can do, and what needs us
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but they do not reach the grease that builds up further in. That part needs specialist access and equipment.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.