Oxfordshire · Air handling unit cleaning

Air handling unit cleaning in Woolstone, Oxfordshire

AHU cleaning in Woolstone from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.

  • Plant that needs cleaning after a refit
  • Debris and leaves in the fresh air intake
  • Plant that has been serviced but not cleaned

AHU cleaning in Woolstone

About our AHU cleaning in Woolstone

A cooling coil drips condensate into a tray that should drain away. When the drain blocks, water sits there and the tray turns slimy, right in the path of the air going into the building. Clearing and cleaning the tray is central to every AHU clean. The work covers supply and extract fans, dampers and louvres and heating and cooling coils, and people most often call us about air handling units with blocked filters and fan sections that haven’t been cleaned in years.

In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.

It’s worth checking any contractor’s accreditations. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.

Place
Woolstone (SN7)
Wider area
Oxfordshire
Paperwork
Report and pictures after the visit
Price
Fixed quote, typically within a working day
When we work
When your site is closed, plus a 24/7 line
Phone
0345 646 2711
Last updated
30 October 2026
Inside an extract duct: heavy deposits on the left, cleaned metal on the right

When it’s something else

An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:

  • Ductwork downstream of the unit, which is a separate clean
  • Coils that are corroded or leaking and need replacing
  • Controls and BMS settings that run the unit

Not sure which it is? You can phone us on 0345 646 2711 or send us an email and we will tell you honestly.

What the work covers

  • Filter sections
  • Heating and cooling coils
  • Dampers and louvres
  • Drain trays
  • Internal panels
  • Supply and extract fans

Signs you need AHU cleaning in Woolstone

An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. The intake section and first filters take the brunt, and the finer material travels on.

It’s time to book a visit if you see:

  • Blocked condensate drains and slimy trays
  • Leaves and litter drawn into the unit
  • Dust-coated heating and cooling coils
  • Units that have only ever had filter changes

Hospitals such as Faringdon Day Hospital (about 4.7 miles north) show how much a building can rely on clean ventilation, and smaller healthcare sites near Woolstone are no different.

Questions to ask before you book

  • Whether VAT is included
  • Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
  • How they set the interval to the next visit
  • Whether the figure could change on the day

Our hiring checklist

Leave it or put it right?

Standing water in a drain tray does not 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 planned visit to Woolstone is easier to arrange than an emergency callout.

Several systems or sites on one quote can make for a more efficient booking. Tell us about everything you’d like looked at, and you’ll get one fixed quote.

What you get with us

  • One contact for all your sites in London and the South East
  • Photo reports with every job
  • Evenings, overnight and weekends, plus 24/7 emergency callout
  • In business since 2009

Read how cleaning jobs are priced or our accreditations and certificates.

What the work involves, part by part

Fans and fan sections

The fan section is cleaned with the unit switched off and isolated with your site team.

Heating and cooling coils

Coil fins are close together and catch the dust the filters miss. They’re cleaned using methods that won’t bend or flatten the fins.

Looking after it afterwards

Results last longer with the right care. Here’s what we suggest:

  • Book the next check in line with the report
  • Keep filter changes on time and recorded
  • Don’t ignore odours coming through the grilles
  • File each AHU report in the maintenance log

You receive a TR19® certificate and a photo report after the clean. Keep both with the building’s maintenance records.

Regular inspection under TR19® Air shows when cleaning is due instead of leaving it to guesswork.

Landlords, agents and facilities managers

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. With shared responsibility, good records help everyone.

From a single site to a large estate, the standard is the same: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.

Ventilation in Woolstone buildings

The nearest hospital to Woolstone is Faringdon Day Hospital, about 4.7 miles north. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.

For schools like Uffington Church of England Primary School, the holidays are the usual time to inspect and clean ventilation.

Woolstone is about 7 miles west of Wantage, in Oxfordshire. Anywhere in SN7, we cover AHU cleaning for commercial sites. Woolstone is one of 443 towns, villages and districts in Oxfordshire where we work for AHU cleaning. For sites nearby, see our Oxford page (19 miles or so).

Every address in SN7 is covered for AHU cleaning, from the main roads to the quietest streets. Neighbouring places we cover for AHU cleaning include Kingston Lisle (2 miles east), Westcot (3 miles east), Sparsholt (3 miles east), Upper Lambourn (5 miles south) and Sheepdrove (6 miles south-east). Further out, we also cover Didcot (14 miles east), Abingdon-on-Thames (14 miles north-east), Witney (14 miles north), Carterton (12 miles north), Wantage (7 miles east) and Grove (7 miles east).

Around Woolstone

Around Woolstone, our work takes us to kitchens and buildings near The White Horse Inn. Well-known places in the area include Uffington Museum (1 mile north-east) and Faringdon Day Hospital (4.7 miles north). The countryside around Woolstone includes Dragon Hill and Seven Barrows.

Map of Woolstone © OpenStreetMap contributors

The process

At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. The visit takes a single shift for a typical unit, longer for large or heavily soiled ones. Pictures of the system and its access let us plan the work in Woolstone before we set off.

  1. We start with a survey of the unit and a fixed quote for the work.
  2. We arrange the shutdown with your staff and sheet the area.
  3. Filters, coils, fan section and casing are cleaned in turn.
  4. Standing water and slime come out of the tray and the drain is checked.
  5. A TR19® certificate and photo report follow the clean.

Preparing for the visit

  • Plan for cooking equipment or plant to be off before we arrive
  • Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
  • Clear loose items from the work area

Ask for a quote

To help us quote: where the site is, what it is and its opening hours, photos of the system and any previous report or certificate. Then call us on 0345 646 2711 or email us.

Get a quick quote

Advice

Woolstone questions

Is Woolstone within the area you cover?

Yes, we work in villages as well as towns, and Woolstone is covered. Just mention lanes, gates or anything else about the site when you book.

Can the work in Woolstone be done at night or at weekends?

Yes, we can come after you close and finish before you open. That way a site in Woolstone does not have to lose a day’s trading. Let us know the hours you’re closed and we’ll book within them.

Which kinds of sites do you work on?

We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.

Will the ventilation be off while you clean?

Yes, for the time we are working on it. Out-of-hours work is available so the building isn’t left without ventilation when it’s busy.

Do you survey before quoting?

Yes, every time. Diagnosis comes before treatment: the survey tells us what the system needs and how to reach it, and the quote is based on that.

What information do you need?

Where the site is, what it is and when it’s open, along with a few photos and any previous report.

What happens to the waste?

It leaves the site with us when we go. While we work, it’s kept contained so the area stays clean.

Do you offer maintenance contracts?

Yes. Tell us what you have and how it’s used, and we’ll suggest a schedule and quote for it.

BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London