Oxfordshire · Air handling unit cleaning
Marsh Baldon AHU cleaning
For AHU cleaning in Marsh Baldon, one call is all it takes, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Leaves and litter drawn into the unit
- Filters that are clogged or overdue
- Condensate trays that won’t empty
What happens on the day
Your staff do not need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. Pictures of the system and its access let us plan the work in Marsh Baldon before we set off.
- 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
- Clear loose items from the work area
- Find the previous report, if there is one
- Let us know about permits to work or site inductions
Getting a quote
Every quote begins with a look at the system, from your pictures and details or, where that isn’t enough, a survey on site. Then we send a fixed price so you know the cost before work begins.
Read more
AHU cleaning for kitchens and businesses in Marsh Baldon
Coils are where a lot of the dirt ends up. Dirt on the fins holds back air and makes the unit work harder to do the same job. We clean coils with methods suited to their condition, taking care not to damage the fins. If you have rooms that smell stuffy when the system runs and plant that needs cleaning after a refit, we can help.
For a building in or near Marsh Baldon, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
For insurers and inspectors, the record counts. So every job comes with a written report and pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Where
- Marsh Baldon (OX44)
- Region
- Oxfordshire
- Reporting
- Written report with pictures
- Price
- A fixed price before any work starts
- When we work
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026

How the job changes from site to site
Drain trays
A tray that does not drain becomes a pool of stagnant water in the airstream. We clean it and report anything about the tray or drain that needs fixing.
Fans and fan sections
Before the fan is touched, the unit is shut down and made safe with your site team.
How we price AHU cleaning
Sites vary more than people expect. What affects the quote:
- How easy every part is to reach
- The size of the system
- Where the site is and how we reach it
- Whether several sites go on one quote
The price reflects the work, not guesswork. That’s why we survey first, from photos or on site, and why the quote is fixed before we start.
What to send for a quote
Photos let us diagnose from a distance. Try to include:
- The postcode and the type of business
- Photos showing the whole system and its surroundings
- Problems your staff have spotted
- Detail shots of panels, filters and grilles
To get a fixed quote, phone us on 0345 646 2711, or send details by email with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. We typically come back within one working day.
When it’s something else
Not every problem is solved by AHU cleaning, and we’ll tell you before any work starts. It does not solve:
- Breakdowns that need a mechanical engineer
- Ductwork downstream of the unit, which is a separate clean
- Building management system faults
If in doubt, phone us on 0345 646 2711, or email photos and we will say what we think before you book.
What the work covers
- Drain trays
- Filter sections
- Heating and cooling coils
- Supply and extract fans
- Dampers and louvres
- Internal panels
Places near Marsh Baldon
Other services in Marsh Baldon
Why act early in Marsh Baldon
Dirt left in an air handling unit does not stay in the unit. It’s carried through the ductwork and out of the grilles, which is why the unit and the ducts are best cleaned together. A planned visit to Marsh Baldon is easier to arrange than an emergency callout.
The cost depends on the size of the system, what state it’s in and access to every part of it. You get a fixed price before we start, so you know where you stand.
Why Marsh Baldon businesses choose us
- Every job surveyed first
- A single point of contact for sites across the South East and London
- A fixed price before any work starts
- Full insurance on every job
See our cost guide or our accreditations.
Common questions in Marsh Baldon
Do you work in villages like Marsh Baldon?
Yes. Villages and rural sites across the South East are part of our work, Marsh Baldon included. Let us know about access, parking and anything unusual about getting there when you book.
Can you do AHU cleaning in Marsh Baldon?
Yes, we work in Marsh Baldon and the places around it. Just phone us on 0345 646 2711 or email us with a few details of the site.
What if parts of the system can’t be reached?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, which we can install.
Do you give a certificate after the clean?
Yes, both a certificate and a report with pictures. The report also suggests when the unit should next be inspected.
How long does an AHU clean take?
Expect it to take half a day to a full day per unit, with large plant planned over several shifts. Size, layout and how dirty it is decide the rest, and the quote will give you a clear idea.
Do you look at the system first?
Yes. Photos often do the job, and larger or hidden systems get a visit.
What does AHU cleaning cost?
We do not publish prices, because the cost depends on the job: how big it is, what state it’s in, how we reach it and the working hours. You get a fixed price before work begins.
Which accreditations do you hold?
We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
Aftercare tips
Simple habits between visits make a real difference. We recommend:
- Plan the next inspection before the last report gets filed away
- Change filters on schedule and log each change
- Report water on the plant room floor
- Store the TR19 paperwork where auditors can find it
The report shows each section of the unit before and after, and note any part we couldn’t get to. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
What staff can safely do
Your own staff can handle the daily basics: 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, which is where we come in.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
AHU cleaning around Marsh Baldon
Marsh Baldon’s nearest hospital, Littlemore Hospital, is about 2.6 miles north-west. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. We cover Marsh Baldon, about 49 miles from central London, as part of our work across London and the South East. The visit is fixed around your opening hours, not ours.
Hospitals such as Littlemore Hospital (about 2.6 miles north-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near Marsh Baldon are no different. School buildings such as Marsh Baldon Church of England Controlled School are typically done in the holidays, so classrooms are not disturbed.
Marsh Baldon is about 4 miles east of Abingdon-on-Thames, in Oxfordshire. We carry out AHU cleaning for commercial premises of every kind in Marsh Baldon and the rest of Oxfordshire. Marsh Baldon is one of 443 towns, villages and districts in Oxfordshire where we work for commercial clients.
Here we cover the OX44 postcode area for AHU cleaning. Local streets include Baldon Lane and The Rickyard, all of which we cover for AHU cleaning. We also cover the places around Marsh Baldon: Berinsfield (2 miles south-east), Burcot (2 miles south), Stadhampton (3 miles east), Brookhampton (3 miles east) and Drayton St Leonard (3 miles south-east). Larger places within reach include Oxford (5 miles north), Didcot (6 miles south-west), Bicester (15 miles north), Abingdon-on-Thames (4 miles west), Witney (15 miles north-west) and Thame (10 miles north-east).
Landmarks near Marsh Baldon
We work in commercial kitchens and buildings around Nuneham Courtenay and the streets around them. The nearest railway station is Radley station, roughly 2.1 miles west of the centre. Nearby you will also find FitzHarris Castle (4.1 miles west) and Templars Square (3.3 miles north). Not far away are Wells Farm and Wittenham Clumps.