Oxfordshire · Air handling unit cleaning
AHU Cleaning in Tidmarsh
Professional AHU cleaning in and around Tidmarsh, booked around your opening hours and signed off in writing with pictures.
- Odours coming through the supply air
- Air handling units due a clean after building work
- Air handling units with blocked filters
How we handle AHU cleaning in Tidmarsh
We clean the parts of the unit where dirt and moisture gather: filters, coils, drain trays, fans and the internal panels. You get a TR19® certificate and a photo report showing the unit before and after. Common call-outs are for dust built up on fan impellers and stale or musty smells from the ventilation, across filter sections, dampers and louvres and heating and cooling coils.
Work in a small place like Tidmarsh starts with agreeing access and timings.
A written report with pictures follows every visit, so you have a record of what was done and when. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Place
- Tidmarsh (RG8)
- Wider area
- Oxfordshire
- Records
- Written report with photos
- Price
- Fixed quote, normally within a working day
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Last updated
- 30 October 2026

Tidmarsh buildings and their air
There are about 3 hospitals, care homes and childcare premises on the FSA’s food hygiene register in and around Tidmarsh, up to about a mile and a half out. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. The nearest hospital to Tidmarsh is Battle Hospital, about 4 miles east. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. At about 43 miles from central London, Tidmarsh sits well inside the area we cover. The visit is fixed around your opening hours, not ours.
Wherever a school like Pangbourne Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Tidmarsh is about 5 miles west of Reading, in Oxfordshire. Whatever kind of site you run in Tidmarsh, AHU cleaning is something we can help with. We can work out of hours so the site keeps running. Tidmarsh is one of 443 towns, villages and districts in Oxfordshire where we work for commercial clients.
Postcode districts we cover here for AHU cleaning: RG8. Streets in the area include Strachey Close and Tidmarsh Lane, and we cover them all for AHU cleaning. We also cover Sulham (1 mile east), Pangbourne (1 mile north), Whitchurch-on-Thames (1 mile north), Little Heath (2 miles south-east) and Englefield (2 miles south). Larger places within reach include Didcot (12 miles north-west), Henley-on-Thames (9 miles north-east), Benson (10 miles north), Wallingford (9 miles north), Great Western Park (12 miles north-west) and Watlington (13 miles north).
Local landmarks in Tidmarsh
In Tidmarsh, that means kitchens and buildings near Denefield School and The Cross Keys pub. The nearest railway station is Pangbourne station, roughly 1.1 miles north of the centre. A little further out are Thames Valley Police Museum (3.5 miles south) and Battle Hospital (4 miles east). The countryside around Tidmarsh includes Moor Copse Nature Reserve and Hosehill Lake.
When it’s something else
We will not sell you work that doesn’t address the problem, so here are the limits:
- Faulty motors, drives or bearings
- Coils that are corroded or leaking and need replacing
- A system that is undersized for the building
If you are not sure, just phone us on 0345 646 2711, or email photos and we’ll give you a straight answer.
Where we work
- Dampers and louvres
- Internal panels
- Supply and extract fans
- Heating and cooling coils
- Filter sections
- Drain trays
The process
The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. It takes a single shift for a typical unit, longer for large or heavily soiled ones, and we clear up before we go. A few photos of the system help us make the most of a visit to a place like Tidmarsh.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Preparing for the visit
- Arrange a key holder or contact on site
- Clear the space around the work
- Dig out any earlier paperwork for the system
Getting a quote
Some systems can be priced from photos; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, you get a fixed price before any work starts.
Advice
Signs you need AHU cleaning in Tidmarsh
Wherever there’s a cooling coil, there’s condensate. A blocked outlet or a badly sloped tray leaves standing water, and that is where slime and odours start.
Look out for these warning signs:
- Air handling units with blocked filters
- Dust built up on fan impellers
- Leaves and litter drawn into the unit
- Dirty coils holding back the airflow
Hospitals such as Battle Hospital (about 4 miles east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Tidmarsh are no different.
Questions to ask before you book
- How areas they cannot reach will be recorded
- When the next visit should be, and why
- Whether the work can be done while the site is closed
- What records you’ll receive afterwards
Looking after it afterwards
Think of this as the after-treatment advice, short and simple:
- Change filters on schedule and log each change
- Plan the next inspection before the last report gets filed away
- Keep the certificate and photo report with the plant records
- Look at the condensate drain whenever the unit is serviced
You receive a TR19® certificate and a photo report after the clean. They belong in the plant or maintenance log.
Keep the unit’s doors and panels in working order. If a section is hard to get into, it tends not to get checked.
What your team can do, and what needs us
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that is where we come in.
Staff cleaning and specialist work are not the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Tidmarsh questions
Can you get to a site in Tidmarsh?
Yes, we work in villages as well as towns, and Tidmarsh is covered. Just mention lanes, gates or anything else about the site when you book.
Can ventilation in schools around Tidmarsh be cleaned out of term?
Yes, out-of-term visits are normal for schools. Around Tidmarsh, the Food Standards Agency lists about 2 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 need to switch the unit off?
Yes, for the time we’re working on it. Out-of-hours work is available to keep disruption down.
How do you protect the area?
By covering it before any work starts. We keep the work contained and clean down when we finish.
Do you have a 24/7 line?
Yes, day and night, every day of the year. Office hours are Monday to Friday, 8am to 6pm, with the emergency line covering every other hour.
Can we book visits on a schedule?
Yes, of course. Tell us what you have and how it’s used and we’ll propose a schedule with a fixed quote.
What is TR19?
A BESA specification in two main parts: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It is not law, but it’s the benchmark.
How far ahead should we book?
For planned work, earlier is better, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
Why it’s worth doing now in Tidmarsh
Tenants, auditors and owners may want proof that the air handling plant is kept clean. A TR19® certificate and photo report give you that, for audits, tenants or your own peace of mind. In a small place like Tidmarsh, a system that fails can take a site out of use.
When the work has to happen, how we reach it and how big the site is can all change the price. We take each of them into account and give you a fixed price before work begins.
Why Tidmarsh businesses choose us
- Photo reports with every job
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- We diagnose before we treat
- One number for every site across the South East and London
Take a look at what affects the cost and our accreditations and certificates.
Different parts, different methods
Internal casing and panels
Damaged internal linings or loose panels can shed material into the air. Anything like that is recorded with pictures.
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. A clean gets air moving through the coil properly again.