Oxfordshire · Air handling unit cleaning
AHU Cleaning in Headington Hill
Our technicians work in Headington Hill on cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Fixed quotes, work around your opening hours and photo reports on every job.
- Dust-coated heating and cooling coils
- Rooms that smell stuffy when the system runs
- Air handling units due a clean after building work
AHU cleaning for kitchens and businesses in Headington Hill
The fan pushes every bit of air in the system, so dust on its blades and housing ends up in the airstream. Fan, housing and the surrounding panels are cleaned as part of the job, once the unit has been shut down and isolated. We’re often asked to deal with filters that are clogged or overdue and plant that has been serviced but not cleaned, on filter sections, drain trays and internal panels.
Smaller buildings around Headington Hill often keep their ventilation units in a roof void or plant cupboard, where they’re easy to forget. Filters, coils and drain trays need attention whatever the size of the unit.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Where
- Headington Hill (OX3, OX4)
- Region
- Oxfordshire
- Reporting
- Photo report after every visit
- Quote
- A fixed quote up front
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
How it works
Protection comes first: floors, worktops and anything near the work are covered. Then we make the system safe and start. It takes a single shift for a typical unit, longer for large or heavily soiled ones, and the area is cleaned down before we leave. In a place like Headington Hill, we fit the visit around your hours.
- We survey the unit from pictures or on site and agree what’s included.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Standing water and slime come out of the tray and the drain is checked.
- You get a TR19® certificate and a photo report.
Before we arrive
- Mention any parking or loading restrictions
- Move anything stored near the system
- Tell us about site rules, permits or sign-in
How to get a quote
Some systems can be priced from pictures; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
Related advice
Common problems we fix in Headington Hill
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. The intake section and first filters take the brunt, and the finer material travels on.
It’s time to book a visit if you see:
- Dust-coated heating and cooling coils
- Units that have only ever had filter changes
- Blocked condensate drains and slimy trays
- Leaves and litter drawn into the unit
Wherever a school like Cheney School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Comparing quotes
- Exactly which parts of the system are covered
- Whether the quote is based on a survey or photos
- What records you’ll receive afterwards
- When they can work, and whether that is outside your opening hours
What happens if it’s left?
Stuffy rooms and stale smells in a building in Headington Hill can sometimes be traced back to the AHU. A clean tackles the source instead of masking it. It’s easy to lose track of when the work was last done on a quieter site.
No two sites are the same, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
What you get with us
- Photo reports with every job
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Survey first, then a fixed quote
- CHAS, SafeContractor and ISO 9001
Between visits
To keep the system working properly between visits:
- Don’t ignore odours coming through the grilles
- Keep the area around the fresh air intake clear
- Check the drain tray is emptying during routine visits
- Keep the certificate and photo report with the plant records
Keep filter changes on schedule between cleans, because good filters protect everything downstream. Log every change so it’s easy to see when the next is due.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.
What affects the cost of AHU cleaning
We quote each job individually. These are the things that affect it:
- Whether we need access equipment or extra panels
- Site rules, permits and inductions
- Whether several sites go on one quote
- The size of the system
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 work begins.
What to send for a quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- Where the site is and what kind of site it is
- Any access panels or hatches you can see
- How we’d reach plant on a roof or in a plant room
- The paperwork from the last visit, if you have it
Quoting starts with a diagnosis, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work, before work begins.
Nearby places to Headington Hill
What else we do in Headington Hill
FAQs for Headington Hill
Do you do school ventilation cleaning in Headington Hill in the summer holidays?
Yes, and it’s the easiest time to do it. Food Standards Agency records list about 58 schools, colleges and universities with registered kitchens within about a mile and a half of Headington Hill. Booking early in the term gives the best choice of holiday dates.
Can you work in Headington Hill outside opening hours?
Yes, evening, overnight and weekend work is normal for us. That way a site in Headington Hill does not have to lose a day’s trading. When you phone us on 0345 646 2711, or send details by email, mention when the site is quiet.
Can you come out in an emergency?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
What is TR19?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Can you clean the ducts connected to the AHU?
Yes. We clean supply and extract ductwork to TR19® Air as well. Cleaning the unit and ducts together often makes sense, and we can quote for both.
How much notice should we give?
It depends on the time you need and how big the job is. Mention your preferred dates with your enquiry, and if it’s an emergency, call us any time.
What does AHU cleaning cost?
It depends on the site, so we quote each one individually. For a quote, ring 0345 646 2711 or send us an email and tell us about the site and its opening hours.
Can you quote from photos?
Often, yes. Photos of the system and the access, plus your opening hours and last report, are often enough. Where we cannot see enough, we arrange a survey.
How the job changes from site to site
Drain trays
A tray that doesn’t 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
Dust on a fan impeller adds weight and wear. A clean fan runs more smoothly.
Honest limits
We’d rather tell you now than book work that won’t help, so these are the things it will not cover:
- Leaking heating or cooling coils
- Airflow problems caused by the system’s design
- Dirty ducts beyond the unit itself
If in doubt, phone us on 0345 646 2711 or drop us a line and we will say what we think.
Parts of the system we cover
- Internal panels
- Supply and extract fans
- Heating and cooling coils
- Dampers and louvres
- Filter sections
- Drain trays
What AHU cleaning looks like in Headington Hill
Food Standards Agency data includes about 58 schools, colleges and universities, about 29 hospitals, care homes and childcare premises and about 8 hotels, B&Bs and guest houses within 1.5 miles or so of the middle of Headington Hill. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Headington Hill, about 52 miles from central London, is within our usual area. The visit is fixed around your opening hours, not ours. The nearest hospital to Headington Hill is Warneford Hospital, about less than half a mile south. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
Hospitals such as Warneford Hospital (about less than half a mile south) show how much a building can rely on clean ventilation, and smaller healthcare sites near Headington Hill are no different.
Headington Hill is about 1 mile north-east of Oxford, in Oxfordshire. Whatever kind of site you run in Headington Hill, we can take on AHU cleaning. Visits can be booked for evenings, overnight or weekends so trading is not interrupted. Headington Hill is one of 443 towns, villages and districts in Oxfordshire we cover for AHU cleaning.
AHU cleaning in OX3 and OX4 follows the same survey, fixed quote and written report as everywhere else we cover. AHU cleaning is available to premises on Gipsy Lane, Grays Road and Beech Road and the roads around them. If your site is just outside Headington Hill, we cover Oxford (1 mile south-west), New Marston (1 mile north-west), St Clement's (1 mile south-west), Headington (1 mile north-east) and Northway (1 mile north). Larger places within reach include Didcot (10 miles south), Bicester (11 miles north), Abingdon-on-Thames (6 miles south-west), Witney (12 miles west), Thame (11 miles east) and Wantage (14 miles south-west).
Around Headington Hill
Around Headington Hill, our work takes us to kitchens and buildings near Headington Hill Park, White Horse pub and English Faculty Library. Other local landmarks include Headington Rye Oxford (under half a mile north-east), Holy Trinity Church (1.2 miles east) and St Michael's CofE Primary School (0.5 miles west). For rail, the closest station is Oxford station, roughly 1.9 miles west. Well-known places in the area include Clarendon Shopping Centre (1.5 miles west) and Oxford Castle (1.6 miles west). For a walk, there’s CS Lewis Nature Reserve and Shotover.