Oxfordshire · Air handling unit cleaning

AHU Cleaning in Great Tew

Professional AHU cleaning in and around Great Tew, timed so the site keeps working and finished with a written report and pictures.

  • Leaves and litter drawn into the unit
  • Condensate trays that won’t empty
  • Filters that are clogged or overdue

AHU cleaning for sites in Great Tew

AHU cleaning in Great Tew, done properly

An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with pictures, so you can see the unit’s condition for yourself. Typical jobs include dirty coils holding back the airflow and dirty filters cutting the airflow, on dampers and louvres, heating and cooling coils and filter sections.

For a building in or near Great Tew, access is agreed in advance and the visit is planned around the journey.

Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, and we’re fully insured.

Location
Great Tew (OX7)
Wider area
Oxfordshire
Paperwork
Photo report after every visit
Quotes
A fixed quote up front
Hours
Evenings, overnight and weekends; 24/7 emergencies
Phone
0345 646 2711
Updated
30 October 2026
The Duct Doctor team standing beside their branded white and blue vans

Ventilation in Great Tew buildings

Our area takes in London and the South East, Great Tew included. Evening, overnight and weekend visits are all possible.

If you manage a school such as Great Tew County Primary School, ventilation cleaning is best booked for the holidays.

Great Tew is about 8 miles south-west of Banbury, in Oxfordshire. Every kind of commercial site in Great Tew, we can take on AHU cleaning. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. We cover 443 places across Oxfordshire, large and small. There’s also a page for Oxford, about 17 miles away.

We work across the OX7 postcode area for AHU cleaning and the roads nearby. Local streets include The Square, Old Road and New Road, and we cover them all for AHU cleaning. Other places close to Great Tew include Little Tew (1 mile south-west), Swerford (2 miles north-west), Wigginton (2 miles north), South Newington (3 miles north) and Church Enstone (3 miles south). We also work in nearby towns such as Banbury (8 miles north-east), Bicester (12 miles east), Witney (12 miles south), Carterton (15 miles south-west), Kidlington (11 miles south-east) and Bure Park (12 miles east).

Local landmarks in Great Tew

In Great Tew, that means kitchens and buildings near The Falkland Arms Public House. A little further out are Old Forge Museum (Great Tew) (under half a mile north) and Deddington Castle (4.9 miles east). Open spaces near Great Tew include Woodford Bottom and Lamb's Pool.

Map of Great Tew © OpenStreetMap contributors

Fixed quotes for AHU cleaning in Great Tew

A fixed price needs a few facts first. We look at:

  • The condition we find in the survey
  • One-off work versus a regular cycle
  • How easy every part is to reach
  • The scale of the work

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 not sure what’s needed, phone us on 0345 646 2711 or email us and we will give you an honest view and a fixed quote.

What to send for a quote

A few details help us quote accurately. When you get in touch, it helps to send:

  • Detail shots of panels, filters and grilles
  • When the site is open and when it’s quiet
  • Photos showing the whole system and its surroundings
  • Problems your staff have spotted

Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.

How the visit works

Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. On site, the work takes half a day to a full day per unit, with large plant planned over several shifts. If you can send photos, we can arrive in Great Tew knowing what to expect.

  1. First we agree when the unit can be switched off, including evenings or weekends.
  2. We take before pictures of each section of the unit.
  3. Filters, coils and internal surfaces are cleaned from intake to discharge.
  4. We finish with the fan section and the drain tray.
  5. After photos are taken and the certificate issued.

Preparing for the visit

  • Let us know how we reach the system, including roofs, risers and plant rooms
  • Make sure someone can let us in and lock up afterwards
  • Have your last certificate or report to hand

Get a fixed quote

Need a price for AHU cleaning? Please phone us on 0345 646 2711 or use the quote form with a few details about the site. We will explain what we’d do and send a fixed quote before anything is booked.

Ask for a quote

Related advice

Looking after it afterwards

No system stays clean for ever, but care slows the build-up. A few tips:

  • Diary the inspection date recommended in the report
  • File each AHU report in the maintenance log
  • Keep the area around the fresh air intake clear
  • Report water on the plant room floor

Once the clean is done, we send a TR19® certificate and a report with before and after photos. Keep both with the building’s maintenance records.

Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.

Your questions about AHU cleaning in Great Tew

Can ventilation in schools around Great Tew be cleaned out of term?

Yes, and it’s the easiest time to do it. With about 2 schools and colleges on the FSA’s register within roughly a mile and a half of Great Tew, it pays to plan holiday dates ahead. Just call 0345 646 2711, or send details by email with your term dates and we’ll plan around them.

Do you work in villages like Great Tew?

Yes. Villages and rural sites across the South East are part of our work, Great Tew included. Just mention lanes, gates or anything else about the site when you book.

Can you set up regular visits?

Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.

Is there a report after cleaning?

Yes. You get a TR19® certificate plus before and after pictures. Keep them in the maintenance log.

Do you work with multi-site operators?

Yes. You deal with one contact for every site in our area, and visits can be set on a regular cycle.

How often should an air handling unit be cleaned?

It depends on the unit, the filters and how the building is used. Inspection tells you when cleaning is needed, and we’ll suggest an interval after the first clean.

How much notice do you need?

It depends on the time you need and how big the job is. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.

Can you clean the ducts connected to the AHU?

Yes, the ductwork, grilles and diffusers the unit serves. We will tell you after the survey whether the ducts need it.

What a clean will not put right

We will always give you a straight diagnosis, so here’s what this work can’t put right:

  • Airflow problems caused by the system’s design
  • Mechanical faults with motors, belts or bearings
  • Controls and BMS settings that run the unit

Not sure which it is? You can call us on 0345 646 2711 or use the quote form and we’ll tell you honestly.

Parts of the system we cover

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

What we are called out for in Great Tew

Dirt in an AHU matters in two ways: the unit supplies the air people breathe, and a dirty unit has to work harder. For anyone working, learning or staying in a building in Great Tew, that is air they breathe for hours at a time.

Look out for these warning signs:

  • Intake sections clogged with outdoor debris
  • Condensate trays that won’t empty
  • Units that have only ever had filter changes
  • Dirty fans and fan housings

For buildings in and around Great Tew, TR19® Air cleaning starts with an inspection.

Comparing quotes

  • What happens if part of the system can’t be accessed
  • What’s included in the scope, part by part
  • Whether they recommend a next date
  • If they look at the system before pricing

Questions to ask before you book

Why act early in Great Tew

Leave an AHU uncleaned and the dirt doesn’t stay put. It moves on into the ductwork and out into the rooms, which is why the unit and the ducts are best cleaned together. In a place like Great Tew, ductwork and fans are easy to forget until something goes wrong.

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 any work starts.

Why book with us

  • Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
  • In business since 2009
  • Fully insured
  • One contact for all your sites in London and the South East

Read what affects the cost or how to check a contractor.

What your team can do, and what needs us

If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, they should report it rather than try to fix it. We can diagnose it and quote.

Staff cleaning does not replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.

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