West Berkshire · Air handling unit cleaning
Chaddleworth AHU cleaning
AHU cleaning across Chaddleworth and nearby, timed so the site keeps working and signed off in writing with pictures.
- Plant that has been serviced but not cleaned
- Dirty filters cutting the airflow
- Stale or musty smells from the ventilation
Your questions about AHU cleaning in Chaddleworth
Do you cover Chaddleworth for AHU cleaning?
Yes. We work across London and the South East, and Chaddleworth is part of that. You can give us a ring on 0345 646 2711, or send details by email and let us know what needs doing.
Do you work overnight in Chaddleworth?
Yes, out-of-hours work is a big part of what we do. Your customers, staff or residents in Chaddleworth needn’t be disturbed. Your opening times are the first thing we ask for.
Does the AHU have to be shut down for cleaning?
Yes. Cleaning needs the unit off and isolated, so we plan it for a time that suits the building.
What do you need from me for a quote?
Where the site is, what it is and when it’s open, plus pictures of the system and your last certificate or report if you have one.
How much does AHU cleaning cost in Chaddleworth?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. You get a fixed price before any work starts.
How much notice do you need?
Book as early as you can for planned work, particularly if your next visit is nearly due. For emergencies, we take calls 24/7.
What accreditations do you have?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
What is TR19?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It isn’t law, but it’s the benchmark.
AHU cleaning for kitchens and businesses in Chaddleworth
A cooling coil drips condensate into a tray that should drain away. If the outlet blocks, standing water and slime build up, in the airstream that feeds the building. Cleaning and clearing it is a key part of the job. Common call-outs are for air handling units never cleaned inside and stale or musty smells from the ventilation, across internal panels, supply and extract fans and drain trays.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
Good records are part of the job. You get a written report with pictures after each visit, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Place
- Chaddleworth (RG20)
- Wider area
- West Berkshire
- Reporting
- Report and pictures after the visit
- Quote
- A fixed price before work begins
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
AHU cleaning around Chaddleworth
Chaddleworth is about 56 miles from central London, well within the area we cover across London and the South East. Evening, overnight and weekend visits are all possible.
For buildings in and around Chaddleworth, TR19® Air cleaning starts with an inspection.
Chaddleworth is about 7 miles south of Wantage, in West Berkshire. Sites in Chaddleworth get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with photos. Across West Berkshire, we cover 155 places, Chaddleworth among them. For sites nearby, see our Reading page, about 19 miles away.
Postcode districts we cover here for AHU cleaning: RG20. You’ll find streets such as Main Street, Upper End and Tower Hill, all of which we cover for AHU cleaning. Other places close to Chaddleworth include Great Shefford (2 miles south-west), East Shefford (2 miles south-west), Weston (2 miles south-west), East Garston (3 miles west) and Easton (3 miles south). Further out, we also cover Newbury (8 miles south-east), Thatcham (9 miles south-east), Speenhamland (7 miles south-east), Hungerford (8 miles south-west), Lambourn (5 miles west) and Shaw (7 miles south-east).
Landmarks near Chaddleworth
For a walk, there’s Sole Common Pond.
Aftercare tips
Simple habits between visits make a real difference. We recommend:
- Make sure the unit’s access doors open easily
- Report water on the plant room floor
- Flag stale or damp smells in the supply air
- Plan the next inspection before the last report gets filed away
The report shows each section of the unit before and after, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.
Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.
When it’s something else
Some problems need a different service or another trade:
- Building management system faults
- Airflow problems caused by the system’s design
- Mechanical faults with motors, belts or bearings
If you are not sure, just give us a ring on 0345 646 2711 or send us an email and we’ll give you a straight answer.
Where we work
- Filter sections
- Heating and cooling coils
- Supply and extract fans
- Dampers and louvres
- Drain trays
- Internal panels
What affects the quote in Chaddleworth
The price is fixed before any work begins. It takes into account:
- When the work can happen, such as evenings, overnight or weekends
- The number of sites or systems
- The condition of the system
- Access, including roofs, risers and ceiling voids
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before work begins.
What to send for a quote
What to send for a quote:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Your opening hours and when the area is out of use
- Where the site is and what kind of site it is
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 we start.
Different parts, different methods
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. They’re cleaned using methods that will not bend or flatten the fins.
Fans and fan sections
Every bit of air passes the fan, so a dirty fan sends dirt downstream. We clean the impeller, housing and surrounding section.
Landlords, agents and facilities managers
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We are happy to deal with either side, and the report can go to both.
We regularly work with managing agents. Tell us the site, the work and the access arrangements and we will come back with a fixed quote.
The process
Your trading hours come first. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the job takes anything from half a day for one small unit to several shifts for a plant room full of them. In a small place like Chaddleworth, the journey is planned ahead and the visit arranged around the site’s hours.
- We agree a shutdown window that suits the building.
- We take before photos of each section of the unit.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- We take after pictures and issue the certificate and report.
Getting ready for the visit
- Tell us about site rules, permits or sign-in
- Clear loose items from the work area
- Tell us where we can park and unload
How to get a quote
Getting a quote doesn’t take long. Call or email with a few details and you’ll usually have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
Read more
What we are called out for in Chaddleworth
Planned maintenance often covers belts, motors and filters but not cleaning. So a unit can be well maintained and still dirty.
The symptoms we are asked about most include:
- Odours coming through the supply air
- Air handling units due a clean after building work
- Air handling units with blocked filters
- Plant that has been serviced but not cleaned
Classrooms and halls at schools such as Chaddleworth St Andrew's C.E. Primary School are easiest to work in when pupils are away.
Before you book anyone
- Whether the whole system is included, or only the parts that are easy to reach
- Whether they recommend a next date
- If the quote is a fixed price or an estimate
- Proof of accreditation you can verify