West Berkshire · Air handling unit cleaning

Thatcham AHU cleaning

We cover Thatcham for cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Fixed quotes, work around your opening hours and photo reports as standard.

  • Units that have only ever had filter changes
  • Plant that needs cleaning after a refit
  • Coils clogged with dust and debris

Need AHU cleaning in Thatcham?

Why deal with it now?

When the unit is clean, less dirt reaches the ducts, so the whole system stays cleaner for longer. That makes the next inspection of a building in Thatcham simpler. Dealt with now, it’s a planned visit around your hours rather than a callout when the site needs to be open.

What you pay reflects the actual work. That’s why we survey first, from pictures or on site, and why the quote is fixed before work begins.

What you get with us

  • Fixed quotes, usually within one working day
  • Evenings, overnight and weekends, plus 24/7 emergency callout
  • Every job surveyed first
  • One contact for all your sites in London and the South East

See what affects the cost and our accreditations.

How we handle AHU cleaning in Thatcham

A cooling coil drips condensate into a tray that should drain away. When the drain blocks, water sits there and the tray turns slimy, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. The work covers internal panels, dampers and louvres and filter sections, and people most often call us about stale or musty smells from the ventilation and plant that needs cleaning after a refit.

In a town like Thatcham, ventilation cleaning normally means offices, schools, surgeries, care homes and leisure buildings. Each has supply and extract ductwork that collects dust and debris.

Nothing is signed off by word of mouth: a written report, dated and illustrated with pictures, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.

Before and after view down the inside of a rectangular extract duct
Location
Thatcham (RG19, RG18)
Region
West Berkshire
Paperwork
Written report with photos
Quote
A fixed price before work begins
When we work
Out of hours as standard, 24/7 emergency line
Call
0345 646 2711
Updated
30 October 2026

Thatcham: your questions answered

Do you do school ventilation cleaning in Thatcham in the summer holidays?

Yes, holiday work suits schools best. Food Standards Agency records list about 4 schools, colleges and universities with registered kitchens within about a mile and a half of Thatcham. Tell us your holiday dates and we will book the visit for when the site is empty.

Is AHU cleaning available in Thatcham?

Yes. Our area runs across London and the South East, Thatcham included. To start, call 0345 646 2711 or use the quote form with a few pictures of the system.

What do you clean inside the unit?

Everything inside the unit that air passes over, from intake to discharge, including coils, fan and drain trays. You get a photo report showing each part before and after.

Do you need to switch the unit off?

Yes. Cleaning needs the unit off and isolated, so we plan it for a time that suits the building.

What should I send you?

Only a few details: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. After that, simply call 0345 646 2711 or use the quote form.

Can we book visits on a schedule?

Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. The report from each visit recommends the next date.

Can you fix a faulty AHU?

The clean includes noting faults, but repairs sit with your maintenance contractor, with photos where it helps.

Can you clean the ducts connected to the AHU?

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 quote for both.

What we do, step by step

We start by comparing what we find with the survey or your photos. Anything unexpected is raised with you before we go further. From there, it takes half a day to a full day per unit, with large plant planned over several shifts. For a site in a town like Thatcham, tell us your opening hours, where we can park and how we reach the roof or plant.

  1. We agree a shutdown window that suits the building.
  2. We take before pictures of each section of the unit.
  3. We work through the unit from the intake to the outlet.
  4. We finish with the fan section and the drain tray.
  5. After pictures are taken and the certificate issued.

Before we arrive

  • Let us know when the site is closed or quiet
  • Clear the space around the work
  • Have your last certificate or report to hand

Ask for a quote

Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before we start.

Get a price

Related advice

AHU cleaning in Thatcham: local notes

Food Standards Agency records list about 4 schools, colleges and universities and about 12 care, childcare and hospital premises registered as food businesses within roughly a mile and a half of the centre of Thatcham. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Thatcham is about 51 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. About 1.5 miles west of Thatcham is West Berkshire Community Hospital, the nearest hospital. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.

If you run a surgery, dental practice or care home near Thatcham, clean ventilation matters as much to you as to a hospital like West Berkshire Community Hospital (about 1.5 miles west). If you manage offices or shops near Thatcham station, their ventilation can be inspected and cleaned out of hours.

Thatcham is about 12 miles north-west of Basingstoke, in West Berkshire. If you need AHU cleaning in Thatcham, please give us a ring on 0345 646 2711 or email us for a fixed quote. We work across South East England and London, including Thatcham. Thatcham is one of 155 towns, villages and districts in West Berkshire we cover for AHU cleaning. Reading is in our area too, about 13 miles from Thatcham.

All of RG19 and RG18 is within our area for AHU cleaning, from busy streets to back roads. That includes premises on High Street, Station Road and Flagstaff Square and nearby roads. Being close to the A4, Thatcham is easy for our technicians to reach at any hour. We also cover the places around Thatcham: Benham Hill (1 mile west), Ashmore Green (2 miles north-west), Cold Ash (2 miles north), Upper Bucklebury (2 miles north-east) and Stone Copse (2 miles north-west). Within a short drive, we also cover Newbury (3 miles west), Burghfield Common (8 miles east), Speenhamland (3 miles west), Hungerford (11 miles west), Spencers Wood (12 miles east) and Calcot (9 miles east). Being one of West Berkshire’s larger places, Thatcham has a wide mix of commercial premises, and we cover all of them for AHU cleaning.

Local landmarks in Thatcham

In Thatcham, that means kitchens and buildings near Kennet School and The Old Chequers Public House and the streets around them. Thatcham’s nearest station is Thatcham station, roughly 0.9 miles south-east of the centre. Well-known places in the area include Old Chapel Textile Centre (2.2 miles south-west) and West Berkshire Community Hospital (1.5 miles west). Open spaces near Thatcham include Nature Discovery Centre.

Map of Thatcham © OpenStreetMap contributors

What AHU cleaning cannot fix

A few issues sit outside what this work can do:

  • Dirty ducts beyond the unit itself
  • Leaking heating or cooling coils
  • Faulty motors, drives or bearings

If in doubt, call 0345 646 2711 or send us an email and we will say what we think.

Parts of the system we cover

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

Signs you need AHU cleaning in Thatcham

Air handling units are typically tucked away on roofs, in plant rooms or above ceilings, so they’re easy to forget about. It’s easy for a long time to go by without anyone opening the panels.

Look out for any of the following:

  • Coils clogged with dust and debris
  • Intake sections clogged with outdoor debris
  • Dust built up on fan impellers
  • Blocked condensate drains and slimy trays

For schools like Spurcroft Primary School, the holidays are the usual time to inspect and clean ventilation.

What to look for in a quote

  • Whether the whole system is included, or only the parts that are easy to reach
  • How areas they can’t reach will be recorded
  • Whether the work can be done while the site is closed
  • How they set the interval to the next visit

Questions to ask before booking

How the job changes from site to site

Heating and cooling coils

Cooling coils stay damp in use, so dirt on them can turn sticky. We clean the coil and the tray beneath it together.

Rooftop and plant room units

Units outside are exposed to weather and windblown debris. The intake section gets particular attention.

Keeping the system healthy

Here’s the after-treatment advice, short and simple:

  • Diary the inspection date recommended in the report
  • File each AHU report in the maintenance log
  • Don’t store bins or materials near the intake
  • Make sure the unit’s access doors open easily

Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.

Don’t let leaves, litter or stored materials build up near the fresh air intake. What’s near the intake ends up in the unit.

Managing agents and facilities teams in Thatcham

If you look after several sites, we can schedule visits across all of them on one quote. Each site gets its own report and photos, so records stay tidy.

Keeping records across a portfolio is half the battle. Every visit ends with a dated report and photos, so you can show an insurer or inspector what was done at each site.

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