West Sussex · Air handling unit cleaning
Air handling unit cleaning in Cocking, West Sussex
AHU cleaning for Cocking, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Dirty coils holding back the airflow
- Odours coming through the supply air
- Plant that has been serviced but not cleaned
Ventilation in Cocking buildings
The nearest hospital to Cocking is Midhurst Community Hospital, about 3 miles north. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital. We cover Cocking, about 47 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.
Ventilation work in and around Cocking is risk-based: inspect, then clean what needs it. Hospitals such as Midhurst Community Hospital (about 3 miles north) show how much a building can rely on clean ventilation, and smaller healthcare sites near Cocking are no different.
Cocking is about 8 miles north of Chichester, in West Sussex. Across the GU29 area, we can carry out AHU cleaning at your premises. We cover 371 places across West Sussex, from busy centres to quieter spots. You can also see our page for Portsmouth, roughly 17 miles from Cocking.
Here we cover the GU29 postcode area for AHU cleaning. If you need AHU cleaning at premises on Bell Lane, The Croft and Cherry Close or anywhere close by, we can help. Neighbouring places we cover for AHU cleaning include Bepton (1 mile north-west), Heyshott Green (1 mile north-east), Cocking Causeway (1 mile north), Heyshott (1 mile east) and Bepton Common (2 miles north). Within a short drive, we also cover Bognor Regis (12 miles south), Chichester (8 miles south), Selsey (15 miles south), Littlehampton (14 miles south-east), Emsworth (11 miles south-west) and Rustington (14 miles south-east).
Landmarks near Cocking
Nearby you’ll also find Midhurst Community Hospital (3 miles north) and Midhurst Museum (2.5 miles north). Not far away are Levin Down and Iping and Stedham Commons.
AHU cleaning for kitchens and businesses in Cocking
The fan pushes every bit of air in the system, so dirt on the impeller and housing gets spread around. We clean the fan section along with the rest of the unit, once the unit has been shut down and isolated. If you have leaves and litter drawn into the unit and fan sections that haven’t been cleaned in years, we can put it right.
Somewhere as small as Cocking, ducted ventilation is usually limited to a school, a care home, a surgery or a converted business building, wherever there is one, but those that do need it inspected and cleaned like any other.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
- Place
- Cocking (GU29)
- Wider area
- West Sussex
- Records
- Written report with photos
- Quote
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026

Fixed quotes for AHU cleaning in Cocking
You’ll get a fixed price before work begins. It takes into account:
- The scale of the work
- Where the site is and how we reach it
- One-off work versus a regular cycle
- The condition we find in the survey
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are unsure, phone us on 0345 646 2711, or send details by email and we’ll give you an honest view and a fixed quote.
What we need to know
Photos let us diagnose from a distance. Try to include:
- Any symptoms, from odd noises to smells or leaks
- Detail shots of panels, filters and grilles
- The times we could work without disrupting the site
- A few general shots of the system
There’s no standard price list, because no two systems are the same. We look at your system first, from pictures or on a visit, then send a fixed quote. To get going, call us on 0345 646 2711, or send details by email.
Places near Cocking
Also in Cocking
Managing agents and facilities teams in Cocking
We work for landlords, managing agents and facilities managers as well as the people running the site. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.
Multi-site operators often want one contractor and one number. We work across London and the South East, so a run of sites can go into one programme and kept to a regular schedule.
FAQs for Cocking
Is Cocking in your area for AHU cleaning?
Yes, Cocking is within the area we cover across London and the South East. A fixed quote usually follows within one working day of the survey details.
Can you get to a site in Cocking?
Yes, Cocking is part of our area, however small the site. The journey is planned ahead, so a few details about the route help.
How do you keep the site clean during the work?
We cover floors and nearby surfaces with sheeting before we start, and anything we remove is contained. Before we leave, we tidy up and clean down.
How much notice do you need?
That depends on the slot you want and the size of the job. Tell us your preferred dates when you ask for a quote, and if it’s an emergency, call us any time.
Will the ventilation be off while you clean?
Yes, for the time we’re working on it. We can work evenings, overnight or at weekends so the building is not left without ventilation when it’s busy.
What is TR19?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Which parts of an air handling unit do you clean?
All the internal parts the air touches, from the intake and filters through the coils and fan to the outlet. The photo report shows each section before and after.
Is there a survey before the work?
Yes. Photos often do the job, while bigger or harder-to-see systems are surveyed on site.
Leave it or put it right?
Cleaning a unit while it only has light dust is quick. Years of build-up make the job longer and harder, particularly where damp has made it stick. In a place like Cocking, ductwork and fans are easy to forget until something goes wrong.
A single site or a whole portfolio, we price it on the same basis: the work involved, the access and the timing. The price is fixed before work begins.
Why book with us
- Full insurance on every job
- Fixed quotes, typically within one working day
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Each visit written up, with pictures
Read our cost guide or how to check a contractor.
What we do, step by step
When we arrive, we check the system against the survey or the pictures you sent. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes from a few hours for a compact unit to a day or more for a large one. Seeing the system in photos first means the trip to Cocking can be planned properly.
- We start with a survey of the unit and a fixed quote for the work.
- We arrange the shutdown with your staff and sheet the area.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- We clean out the drain tray and make sure it drains.
- A TR19® certificate and photo report follow the clean.
Before we arrive
- Plan for cooking equipment or plant to be off before we arrive
- Clear loose items from the work area
- Mention any sign-in, permit or induction we need
How to get a quote
Need a price for AHU cleaning? Please call us on 0345 646 2711, or send details by email and tell us about the site. We’ll talk you through the work and give you a fixed quote before you commit to anything.
Related advice
When it’s something else
Some problems need a different service or another trade:
- Faulty motors, drives or bearings
- Building management system faults
- Leaking heating or cooling coils
If you are not sure, just call us on 0345 646 2711, or email photos and we’ll give you a straight answer before you book.
What the work covers
- Internal panels
- Filter sections
- Drain trays
- Heating and cooling coils
- Supply and extract fans
- Dampers and louvres
Staff cleaning versus specialist work
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
Keep a record of what your team does. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, alongside our reports.
Aftercare tips
Good habits slow the build-up between visits. A few tips:
- Store the TR19 paperwork where auditors can find it
- Clear leaves and litter away from the intake
- Check the drain tray is emptying during routine visits
- Note any water around the unit or leaks below it
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.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.