Oxfordshire · Air handling unit cleaning
Chesterton AHU cleaning
AHU cleaning in Chesterton from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Condensate trays that will not empty
- Leaves and litter drawn into the unit
- Air handling units due a clean after building work
The process
Protection comes first: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. The work on site takes half a day to a full day per unit, with large plant planned over several shifts, and the area is cleaned down before we leave. Somewhere like Chesterton, lanes, gates and parking are worth mentioning in advance.
- We start with a survey of the unit and a fixed quote for the work.
- The unit is shut down with your site team and the area protected.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- Drain trays are cleared and cleaned and the outlet checked.
- We close up the unit and send the certificate and before and after pictures.
How to prepare
- Have your last certificate or report to hand
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Allow time for equipment near the work to be turned off and cool down
How to get a quote
Quotes are quick. Call or email with a few details and you will usually have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
Read more
How we handle AHU cleaning in Chesterton
We clean air handling units for buildings in Chesterton and across Oxfordshire, working to TR19® Air, in offices, schools, hospitals, care homes and retail. The work is timed around when the system can be switched off, including evenings, nights and weekends. The work covers heating and cooling coils, drain trays and dampers and louvres, and common reasons people get in touch are rooms that smell stuffy when the system runs and fan sections that haven’t been cleaned in years.
For a building in or near Chesterton, 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.
We’re CHAS and SafeContractor accredited, we hold ISO 9001 and we are fully insured. We are also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Place
- Chesterton (OX26)
- Wider area
- Oxfordshire
- Records
- Report and photos after the visit
- Price
- Fixed quote, typically within a working day
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Leave it or put it right?
A slimy drain tray only gets worse. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Dealing with it early keeps the clean straightforward. It’s simpler to plan the work at Chesterton now than to arrange it in a hurry later.
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, which can make the next visit longer. If you are not sure what’s needed, ring 0345 646 2711 or send us an email and we’ll give you an honest view and a fixed quote.
What you get with us
- Work around your opening hours, with 24/7 emergency cover
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- In business since 2009
- Every job surveyed first
Read how cleaning jobs are priced and how to check a contractor.
When to call us in Chesterton
It matters for two reasons: the unit supplies the air people breathe, and a dirty unit has to work harder. For the people using the building every day, that is the air they breathe for hours on end.
Signs it’s time to call us include:
- Intake sections clogged with outdoor debris
- Dirty filters cutting the airflow
- Plant that has been serviced but not cleaned
- Stale or musty smells from the ventilation
Bicester Community Hospital, about 1.4 miles north-east, is the nearest hospital to Chesterton, and healthcare sites of every size need their supply air kept clean.
What to look for in a quote
- Whether they’re fully insured
- Whether a survey comes first
- What’s included in the scope, part by part
- How VAT is shown on the quote
Ventilation in Chesterton buildings
Bicester Community Hospital is the nearest hospital, about 1.4 miles north-east of Chesterton. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. We cover Chesterton, about 54 miles from central London, as part of our work across London and the South East. Visits are booked around your hours, evenings and weekends included.
School buildings such as Chesterton Church of England Voluntary Aided Primary School are normally done in the holidays, so classrooms are not disturbed.
Chesterton is about 2 miles south-west of Bicester, in Oxfordshire. From the centre of Chesterton to the outskirts, we cover AHU cleaning for every kind of premises, from small sites to large estates. Our area takes in 443 places across Oxfordshire, large and small. We also work in Oxford, around 10 miles away.
All of OX26 is within our area for AHU cleaning, from busy streets to back roads. We cover sites on Fortescue Drive, Chestnut Close and Green Lane and the roads around them. Nearby, we also carry out AHU cleaning in Wendlebury (1 mile south), Merton (2 miles south-east), Ambrosden (3 miles east), Launton (3 miles east) and Fencott (3 miles south). Within a short drive, we also cover Oxford (10 miles south), Banbury (14 miles north-west), Abingdon-on-Thames (15 miles south), Witney (15 miles south-west), Thame (13 miles south-east) and Kidlington (6 miles south-west).
Local landmarks in Chesterton
Locally, jobs take us to businesses close to The Bicester School and Red Cow pub. The nearest railway station is Bicester Village station, roughly 1.7 miles east. Well-known places in the area include Bicester Avenue (1 mile east) and Ardley Castle (3.9 miles north). For a walk, there’s Graven Hill and Woodsides Meadow.
Staff cleaning versus specialist work
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. Cleaning inside ducts and units is specialist work.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, next to our reports.
When it’s something else
AHU cleaning can’t fix everything, and we’ll tell you before work begins. It won’t put right:
- Building management system faults
- A system that is undersized for the building
- Mechanical faults with motors, belts or bearings
If you are not sure, just call us on 0345 646 2711 or drop us a line and we’ll give you a straight answer.
What we work on in Chesterton
- Heating and cooling coils
- Internal panels
- Filter sections
- Supply and extract fans
- Drain trays
- Dampers and louvres
Also near Chesterton
What else we do in Chesterton
Multi-site and managed buildings
Records are where multi-site compliance often slips. Each visit produces a dated report with photos, ready to show insurers, fire officers or EHOs.
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so records stay tidy.
FAQs for Chesterton
Can you work in Chesterton outside opening hours?
Yes, evening, overnight and weekend work is normal for us. That way a site in Chesterton does not have to lose a day’s trading. Tell us your opening hours when you ask for a quote.
Can a school’s ventilation in Chesterton be done out of term time?
Yes, holiday work suits schools best. Food Standards Agency records list about 2 schools, colleges and universities with registered kitchens within about a mile and a half of Chesterton. Tell us your holiday dates and we’ll book the visit for when the site is empty.
Can one contract cover all our sites?
Yes. Tell us the addresses and what each needs and you’ll get one fixed quote.
How do you keep the site clean during the work?
With sheeting and covers, before anything else happens. The work is kept contained and clean down when we finish.
Are you insured?
Yes. We carry full insurance, and we’ve been trading since 2009.
Does the AHU have to be shut down for cleaning?
Yes, while the clean is under way. Out-of-hours work is available to keep disruption down.
Can you quote from photos?
In many cases, yes. With good pictures, the site type and your last report, we can price many jobs. Where we can’t see enough, we arrange a survey.
What is TR19?
It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.
Looking after it afterwards
Results last longer with the right care. Here’s what we suggest:
- Report water on the plant room floor
- Book the next check in line with the report
- Don’t store bins or materials near the intake
- Make sure condensate is draining away
If the ductwork hasn’t been cleaned, consider it next. Cleaning the unit and ducts together gives the best result, and we can quote for both.
Make sure access doors and panels on the unit open easily. If a section is hard to get into, it tends not to get checked.