Oxfordshire · Air handling unit cleaning
St Clement's AHU cleaning
We cover St Clement's for air handling unit cleaning. Fixed quotes, work around your opening hours and photo reports on every job.
- Plant that has been serviced but not cleaned
- Fan sections that haven’t been cleaned in years
- Drain trays holding standing water
How we handle AHU cleaning in St Clement's
All the building’s air passes through the fan, so dirt on the impeller and housing gets spread around. Fan, housing and the surrounding panels are cleaned as part of the job, once the unit has been shut down and isolated. Common call-outs are for units that have only ever had filter changes and dirty fans and fan housings, on dampers and louvres, internal panels and heating and cooling coils.
Visits to a place like St Clement's are fitted around opening hours. The method doesn’t change: inspect first, clean, then record what was done.
Insurers, fire officers and environmental health officers all look at records. That’s why every job is written up in a report with pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Where
- St Clement's (OX4, OX1, OX3)
- Wider area
- Oxfordshire
- Reporting
- Photo report after every visit
- Price
- A fixed quote up front
- When we work
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
St Clement's questions
Do you work in villages like St Clement's?
Yes, smaller places are covered as well as towns. A survey first, from pictures or a visit, means we arrive with the right kit.
Do you work at weekends in St Clement's?
Yes, nights and weekends are routine for us. Your customers, staff or residents in St Clement's needn’t be disturbed. Just call us on 0345 646 2711 or send us an email with your opening times and we will plan around them.
Do you look at the system first?
Yes, always. Diagnosis comes before treatment: the survey tells us what the system needs and how to reach it, and the quote is based on that.
Can you come out in an emergency?
Yes. Our emergency line runs 24/7 for anything that cannot wait until a planned visit. Ring any time and tell us what’s happened.
Do you repair air handling units?
Mechanical repairs to the unit are for your HVAC maintenance contractor. We clean the unit and report anything we see that needs attention.
Do you need to switch the unit off?
Yes. The unit has to be shut down and isolated before it’s opened. The shutdown is planned with whoever runs the building.
What do you do to protect the area?
We start with protection: floor sheeting and covers over nearby surfaces and equipment. The area is left tidy, with our waste taken away.
How much notice do you need?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and if it’s an emergency, call us any time.
Towns and villages near St Clement's
What else we do in St Clement's
AHU cleaning in St Clement's: local notes
Food Standards Agency records list about 79 schools, colleges and universities, about 25 care, childcare and hospital premises and about 16 hotels and B&Bs registered as food businesses in St Clement's and the streets around it, up to about 1.5 miles out. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. About 52 miles out from central London, St Clement's is part of the South East area we work across. We work evenings, overnight and at weekends, so the visit fits around the site. Warneford Hospital is the nearest hospital, about 0.8 miles east of St Clement's. 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 St Clement's, clean ventilation matters as much to you as to a hospital like Warneford Hospital (about 0.8 miles east).
St Clement's is about 1 mile west of Oxford, in Oxfordshire. We provide AHU cleaning for businesses, landlords and public buildings in St Clement's and the rest of Oxfordshire. Our Oxfordshire coverage runs to 443 places, St Clement's among them.
AHU cleaning in OX4, OX1 and OX3 is surveyed, quoted and booked the same way as anywhere else. Local streets include Rose Lane, Alma Lane and Avenue Lane, and we cover them all for AHU cleaning. Neighbouring places we cover for AHU cleaning include Oxford (1 mile east), Headington Hill (1 mile north-east), St. Ebbes (1 mile west), New Marston (1 mile north) and Donnington (1 mile south). We also work in nearby towns such as Didcot (10 miles south), Bicester (11 miles north), Abingdon-on-Thames (5 miles south), Witney (11 miles west), Carterton (15 miles west) and Thame (12 miles east).
Around St Clement's
In St Clement's, that means kitchens and buildings near Cheney School, Alexander Library of Ornithology and Oxford Media & Business School, among other places. Nearby too are Headington Hill Park (within half a mile north-east) and Oxford Coach & Horses pub (under half a mile east). For rail, the closest station is Oxford station, roughly 1.3 miles west of the centre. Other landmarks nearby include Oxford Castle (0.9 miles west) and Frank Cooper Marmalade Museum (under half a mile west). The countryside around St Clement's includes CS Lewis Nature Reserve and Headington Hill.
What the work involves, part by part
Internal casing and panels
Dust settles on every internal surface of the unit. Each section is cleaned from the intake through to the outlet.
Rooftop and plant room units
Many AHUs sit on roofs or in plant rooms with limited access. Access is planned during the survey, before we quote.
Why act early in St Clement's
Leave an AHU uncleaned and the dirt doesn’t stay put. It’s carried through the ductwork and out of the grilles, which is why the unit and the ducts are best cleaned together. Booking ahead lets us plan the trip to St Clement's at a time that suits you.
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we will explain each part.
Why us?
- Work around your opening hours, with 24/7 emergency cover
- Fully insured
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Survey first, then a fixed quote
Take a look at how cleaning jobs are priced or our accreditations and certificates.
What we do, step by step
The visit has three parts: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with pictures. The middle part takes longest, and that takes anything from half a day for one small unit to several shifts for a plant room full of them. Tell us about any gates, ladders or locked plant areas at your site near St Clement's when you book.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Preparing for the visit
- Tell us where we can park and unload
- Move anything stored near the system
- Arrange a key holder or contact on site
How to get a quote
Here’s what helps us quote: where the site is, what it is and its opening hours, a few pictures and any previous report or certificate. Once you have those, give us a ring on 0345 646 2711 or send us an email.
Related advice
In-house cleaning or a specialist?
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, they should report it rather than try to fix it. We’ll take a look and give you a fixed quote.
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
How we price AHU cleaning
Sites vary more than people expect. The main factors:
- Working hours and out-of-hours timing
- A single visit or a regular plan
- Travel, parking and unloading
- The scale of the work
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.
Asking for a quote
Many jobs can be priced from pictures and some basics. Send what you can of the following:
- Wide pictures of the system and the area around it
- The times we could work without disrupting the site
- The paperwork from the last visit, if you have it
- Where the plant sits or the system leaves the building, such as a roof or outside wall
Every quote begins with a look at the system, from your pictures and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work so you know the cost before we start.
What AHU cleaning cannot fix
Some problems need a different service or another trade:
- A system that’s undersized for the building
- Leaking heating or cooling coils
- 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 will tell you honestly before booking.
Parts of the system we cover
- Supply and extract fans
- Drain trays
- Dampers and louvres
- Internal panels
- Heating and cooling coils
- Filter sections
Do you need AHU cleaning in St Clement's?
Filters catch most of the dust, but not all of it. What gets through settles on coils, fans and the inside of the casing, a little more each month.
Common reasons sites call us include:
- Debris and leaves in the fresh air intake
- Air handling units due a clean after building work
- Dirty fans and fan housings
- Dirty coils holding back the airflow
School buildings such as East Oxford Primary School are normally done in the holidays, so classrooms aren’t disturbed.
What to look for in a quote
- Whether the whole system is included, or only the parts that are easy to reach
- How VAT is shown on the quote
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- What paperwork you get at the end