Oxfordshire · Air handling unit cleaning
AHU Cleaning in Purley on Thames
Professional AHU cleaning in and around Purley on Thames, booked around your opening hours and finished with a written report and photos.
- Leaves and litter drawn into the unit
- Blocked condensate drains and slimy trays
- Stale or musty smells from the ventilation
AHU cleaning in Purley on Thames, done properly
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. If you have intake sections clogged with outdoor debris and units needing a clean before a new tenant or handover, we can put it right.
Smaller buildings around Purley on Thames often keep their ventilation units in a roof void or plant cupboard, out of sight and easy to overlook. Filters, coils and drain trays need attention whatever the size of the unit.
Each visit ends with a written report and pictures, so there’s a dated record of the work. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Location
- Purley on Thames (RG8, RG31, RG4)
- Region
- Oxfordshire
- Records
- Written report with pictures
- Price
- Fixed quote, usually within a working day
- When we work
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Multi-site and managed buildings
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so each one has its own record.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.
Purley on Thames: your questions answered
Can you clean school ventilation in Purley on Thames during the holidays?
Yes. The holidays are the usual time for school work. With about 6 schools and colleges on the FSA’s register within roughly a mile and a half of Purley on Thames, it pays to plan holiday dates ahead. Tell us your holiday dates and we will book the visit for when the site is empty.
Can the work in Purley on Thames be done at night or at weekends?
Yes, we can come after you close and finish before you open. The work in Purley on Thames can fit around your hours. Your opening times are the first thing we ask for.
Do you give a certificate after the clean?
Yes, both a certificate and a report with photos. The report also suggests when the unit should next be inspected.
What’s included in an AHU clean?
Everything inside the unit that air passes over, from the intake and filters through the coils and fan to the outlet. The photo report shows each section before and after.
What’s TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Does the AHU have to be shut down for cleaning?
Yes, while the clean is under way. We can work evenings, overnight or at weekends to keep disruption down.
Are you insured?
Yes. We carry full insurance, and we’ve been trading since 2009.
Can one contract cover all our sites?
Yes. Our area covers London and the South East, so we can schedule a run of sites on one programme. Each site gets its own report and photos.
Aftercare tips
To keep the system working properly between visits:
- Change filters on schedule and log each change
- Do not store bins or materials near the intake
- Make sure condensate is draining away
- Don’t ignore odours coming through the grilles
You receive a TR19® certificate and a photo report after the clean. Keep both with the building’s maintenance records.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air, rather than waiting for a problem.
How the visit works
We start by comparing what we find with the survey or your pictures. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. In a place like Purley on Thames, we fit the visit around your hours.
- We survey the unit from photos or on site and agree what’s included.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- We clean out the drain tray and make sure it drains.
- You get a TR19® certificate and a photo report.
Preparing for the visit
- Dig out any earlier paperwork for the system
- Tell us the best time to work, such as after service or at a weekend
- Make sure someone can let us in and lock up afterwards
Getting a quote
Need a price for AHU cleaning? Please ring 0345 646 2711 or drop us a line and tell us about the site. We will explain what we’d do and send a fixed quote before anything is booked.
Advice
What affects the cost of AHU cleaning
The quote reflects the site in front of us. We take into account:
- The number of sites or systems
- The scale of the work
- The times the site is available
- Parking and loading at the site
Putting the work off seldom saves money. Problems in a system tend to grow, and a neglected system can mean more work. If you’re unsure, call us on 0345 646 2711, or email photos and we’ll give you an honest view and a fixed quote.
Asking for a quote
We can often survey from photos. The most useful are:
- Where the site is and what kind of site it is
- A few general shots of the system
- Any previous report or certificate
- How we’d reach plant on a roof or in a plant room
To get a fixed quote, give us a ring on 0345 646 2711 or drop us a line 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. We normally come back within one working day.
When it’s something else
We’ll always give you a straight diagnosis, so here’s what AHU cleaning will not do:
- Mechanical faults with motors, belts or bearings
- Airflow problems caused by the system’s design
- Coils that are corroded or leaking and need replacing
If you’re not sure, just call us on 0345 646 2711 or send us an email and we’ll give you a straight answer before you book.
What we work on in Purley on Thames
- Internal panels
- Supply and extract fans
- Drain trays
- Filter sections
- Heating and cooling coils
- Dampers and louvres
Different parts, different methods
Filters
Every AHU relies on its filters to catch dust before it reaches the coils. We check them, and clean or change them as agreed in the quote, and the housing around them is cleaned too.
Internal casing and panels
We open each section through its doors and close them securely when we are done before the unit is handed back.
What we are called out for in Purley on 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.
If you notice any of these, it’s worth a diagnosis:
- Air handling units due a clean after building work
- Air handling units never cleaned inside
- Dust built up on fan impellers
- Coils clogged with dust and debris
For schools like Purley CofE Primary School, the holidays are the usual time to inspect and clean ventilation.
What your quote should include
- Whether the work can be done while the site is closed
- Exactly which parts of the system are covered
- If they look at the system before pricing
- Whether they recommend a next date
Places near Purley on Thames
What else we do in Purley on Thames
AHU cleaning around Purley on Thames
Going by the FSA’s register, there are about 6 schools, colleges and universities and about 11 caring premises (care homes, nurseries and hospitals) serving food within 1.5 miles or so of the middle of Purley on Thames. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. For Purley on Thames, the closest hospital is Battle Hospital, roughly 2.6 miles south-east. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. About 41 miles out from central London, Purley on Thames is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you.
Hospitals such as Battle Hospital (about 2.6 miles south-east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Purley on Thames are no different.
Purley on Thames is about 3 miles west of Caversham, in Oxfordshire. Wherever you are in the RG8 postcode area, we cover AHU cleaning for commercial sites. Purley on Thames is one of 443 towns, villages and districts in Oxfordshire we cover for AHU cleaning.
AHU cleaning in RG8, RG31 and RG4 is surveyed, quoted and booked the same way as anywhere else. Streets in the area include Glebe Road, Hazel Road and Menpes Road, and we cover them all for AHU cleaning. Other places close to Purley on Thames include Mapledurham (1 mile north-east), Tilehurst (1 mile south), Sulham (1 mile south-west), Little Heath (2 miles south) and Trench Green (2 miles north-east). We also work in nearby towns such as Didcot (12 miles north-west), Henley-on-Thames (7 miles north-east), Benson (10 miles north), Wallingford (9 miles north-west), Great Western Park (13 miles north-west) and Watlington (11 miles north).
Landmarks near Purley on Thames
In Purley on Thames, that means kitchens and buildings near Denefield School, Round Copse and Roebuck pub, among other places. The nearest railway station is Tilehurst station, about 1 mile south-east. Other landmarks nearby include Battle Hospital (2.6 miles south-east) and Royal Berkshire Regiment Museum (2.4 miles south-east). For a walk, there’s Hosehill Lake and Moor Copse Nature Reserve.