Oxfordshire · Air handling unit cleaning

AHU Cleaning in Upper Basildon

Specialist AHU cleaning for Upper Basildon: a survey, a fixed price, careful work and proper paperwork. Call for a fixed quote.

  • Dirty fans and fan housings
  • Filters that are clogged or overdue
  • Stale or musty smells from the ventilation

AHU cleaning across Upper Basildon

AHU cleaning in Upper Basildon, done properly

Every supply and extract system relies on the air handling unit at its centre: it draws air in, filters it, heats or cools it and pushes it round the ductwork. Whatever builds up inside it travels with that air, which is why we clean the unit itself, not just the ducts. The work covers drain trays, heating and cooling coils and internal panels, and common reasons people get in touch are units needing a clean before a new tenant or handover and rooms that smell stuffy when the system runs.

Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, where filters and drain trays get forgotten.

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
Upper Basildon (RG8)
Wider area
Oxfordshire
Reporting
Report and pictures after the visit
Quotes
A fixed quote up front
Working hours
Overnight and weekend work, 24/7 emergency callout
Phone
0345 646 2711
Last updated
30 October 2026
Inside an extract duct: heavy deposits on the left, cleaned metal on the right

What affects the cost of AHU cleaning

We quote each job individually. These are the things that affect it:

  • A single visit or a regular plan
  • The times the site is available
  • The condition we find in the survey
  • Parking and loading at the site

Working hours, access and the scale of the site all affect the cost. Each of those is built into the quote and give you a fixed price before we start.

What we need to know

The more you tell us, the more accurate the quote. When you get in touch, it helps to send:

  • Any access panels or hatches you can see
  • Any previous report or certificate
  • The times we could work without disrupting the site
  • Any symptoms, from odd noises to smells or leaks

Here’s what helps us quote: where the site is, what it is and its opening hours, photos of the system and the last certificate or report, if there is one. Once you have those, give us a ring on 0345 646 2711 or email us.

Upper Basildon questions

Do you work at weekends in Upper Basildon?

Yes, out-of-hours work is a big part of what we do. It means the site in Upper Basildon keeps running as normal. Just ring 0345 646 2711 or email us with your opening times and we’ll plan around them.

Is Upper Basildon in your area for AHU cleaning?

Yes. Our area runs across London and the South East, Upper Basildon included. Get in touch with the details and we will arrange a survey.

What do you clean inside the unit?

The main parts are the filters, coils, drain tray, fan and inside of the casing. We confirm the scope after looking at the unit.

Are you accredited?

We hold CHAS, SafeContractor and ISO 9001, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.

What does TR19 mean?

It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It covers how systems are inspected, cleaned and checked and expects a risk-based approach.

Do you give a certificate after the clean?

Yes. You receive a certificate and a report showing each section before and after, including anything we think needs attention.

Do you work with multi-site operators?

Yes. We work across South East England and London, so sites at different addresses can be planned together as one programme. Each site gets its own report and pictures.

Do you do ventilation duct cleaning too?

Yes. Ventilation ductwork cleaning to TR19® Air is part of what we do. Cleaning the unit and ducts together often makes sense, and we can survey both on the same visit.

What happens on the day

Protection comes first: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. It takes anything from half a day for one small unit to several shifts for a plant room full of them, and the area is cleaned down before we leave. We agree a date with you, plan the drive to Upper Basildon and turn up when the site is quiet.

  1. The survey covers the unit, its access and how it can be shut down.
  2. We sheet the area and the unit is isolated.
  3. Each section is cleaned of dust, debris and slime.
  4. Coils and trays are cleaned and the condensate drain cleared.
  5. The unit is closed up and handed back, with a report to follow.

Getting ready for the visit

  • Mention any parking or loading restrictions
  • Move anything stored near the system
  • Dig out any earlier paperwork for the system

Ask for a quote

Quotes are quick. Call or email with a few details and you’ll normally have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.

Ask for a quote

Advice

Common problems we fix in Upper Basildon

Whatever surrounds a building in Upper Basildon, the air drawn into its AHU carries dust, pollen and debris. The intake section and first filters take the brunt, and some travels further into the unit.

These are the problems we see most often:

  • Air handling units never cleaned inside
  • Units needing a clean before a new tenant or handover
  • Odours coming through the supply air
  • Fan sections that haven’t been cleaned in years

An inspection comes first for any ventilation job around Upper Basildon, so the cleaning matches what’s there.

Before booking anyone

  • Whether the figure could change on the day
  • What hours they’ll be on site
  • Whether a written report and pictures are included
  • Which accreditations they hold, and whether you can check them

Choosing a duct cleaning contractor

What a clean will not put right

An honest diagnosis matters more to us than a booking, so here’s what AHU cleaning won’t do:

  • Damaged coils beyond cleaning
  • Breakdowns that need a mechanical engineer
  • Dirty ducts beyond the unit itself

If you are not sure, just ring 0345 646 2711 or drop us a line and we will give you a straight answer.

What the work covers

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

Leave it or put it right?

Stuffy rooms and stale smells in a building in Upper Basildon can sometimes be traced back to the AHU. A clean tackles the source instead of masking it. It’s simpler to plan the work at Upper Basildon now than to arrange it in a hurry later.

The price reflects the work, not guesswork. That is why we survey first, from photos or on site, and the price is agreed before work begins.

Why book with us

  • A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
  • Fixed quotes from a survey or pictures
  • One contact for all your sites in London and the South East
  • Out-of-hours work and a 24/7 emergency line

See our cost guide or our accreditations.

Ventilation in Upper Basildon buildings

Upper Basildon is about 45 miles from central London, well within the area we cover across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you.

Classrooms and halls at schools such as Basildon C.E. Primary School are easiest to work in when pupils are away.

Upper Basildon is about 7 miles north-east of Thatcham, in Oxfordshire. Whatever kind of site you run in Upper Basildon, we can take on AHU cleaning. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. Our Oxfordshire coverage runs to 443 places, Upper Basildon among them. There’s also a page for Reading, roughly 8 miles from Upper Basildon.

AHU cleaning in RG8 follows the same survey, fixed quote and written report as everywhere else we cover. AHU cleaning is available to premises on Aldworth Road, Beckfords and Emery Acres and nearby roads. We also cover New Town (1 mile south-east), Stubbles (1 mile west), Ashampstead (2 miles west), Ashampstead Green (2 miles west) and Burnt Hill (2 miles south-west). Further out, we also cover Didcot (10 miles north-west), Abingdon-on-Thames (15 miles north-west), Wantage (14 miles north-west), Henley-on-Thames (11 miles east), Grove (15 miles north-west) and Benson (10 miles north).

Landmarks near Upper Basildon

Typical jobs here are in premises near St Andrew's School and The Red Lion pub and the streets around them. The closest station to Upper Basildon is Pangbourne station, about 2.3 miles east. Nearby you’ll also find Yattendon Castle (2.9 miles south-west). The countryside around Upper Basildon includes Hartslock.

Map of Upper Basildon © OpenStreetMap contributors

In-house cleaning or a specialist?

For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.

Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they cannot safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.

Aftercare tips

So the system stays in good health:

  • Change filters on schedule and log each change
  • Flag stale or damp smells in the supply air
  • Report stiff or damaged access doors
  • File each AHU report in the maintenance log

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.

Change or clean filters on time. Once filters clog, dirt starts getting past them.

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