Isle of Wight · Air handling unit cleaning
AHU Cleaning in Dunsbury
AHU cleaning across Dunsbury and nearby, booked around your opening hours and signed off in writing with pictures.
- Dust built up on fan impellers
- Odours coming through the supply air
- Units that have only ever had filter changes
Ventilation in Dunsbury buildings
Our area takes in London and the South East, Dunsbury included. A survey and a fixed quote come first, then the visit at a time that suits you.
For buildings in and around Dunsbury, TR19® Air cleaning starts with an inspection.
Dunsbury is about 7 miles south-west of Newport, in the Isle of Wight. We provide AHU cleaning for businesses, landlords and public buildings in Dunsbury and the rest of the Isle of Wight. Our the Isle of Wight coverage runs to 125 places, Dunsbury among them. Southampton is in our area too, around 18 miles away.
Work in PO30 is surveyed, quoted and booked the same way as anywhere else. Other places close to Dunsbury include Brook (1 mile south), Hulverstone (1 mile south-east), Brookgreen (1 mile south-east), Shalcombe (1 mile north-east) and Chilton Green (2 miles south-east). Within a short drive, we also cover Newport (7 miles north-east), Ryde (14 miles east), Cowes (9 miles north-east), Sandown (13 miles east), Shanklin (12 miles east) and Ventnor (12 miles east). Remote and island sites need a little more planning, so tell us where you are when you ask for a quote for AHU cleaning.
What’s near Dunsbury
Other landmarks nearby include Yarmouth Castle (3.9 miles north-west) and Calbourne Water Mill And Rural Museum (2.3 miles north-east). Open spaces near Dunsbury include Westover Down.
AHU cleaning in Dunsbury, done properly
A cooling coil drips condensate into a tray that should drain away. If the outlet blocks, standing water and slime build up, right in the path of the air going into the building. Clearing and cleaning the tray is central to every AHU clean. Typical jobs include filters that are clogged or overdue and dirty fans and fan housings, on supply and extract fans, heating and cooling coils and drain trays.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, where filters and drain trays get forgotten.
Think of the report as the system’s health record: dated, with pictures, and showing what was done. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal, ready for your insurer.
- Location
- Dunsbury (PO30)
- Region
- Isle of Wight
- Paperwork
- Report and pictures after the visit
- Price
- A fixed price before work begins
- Hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
How the visit works
Your trading hours come first. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we are in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes a single shift for a typical unit, longer for large or heavily soiled ones. The timing of a visit to Dunsbury is set by you, and the travel is our side of the planning.
- We start with a survey of the unit and a fixed quote for the work.
- With your site team, the unit is switched off and isolated, then the area around it 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.
Getting ready for the visit
- Have your last certificate or report to hand
- Let us know when the site is closed or quiet
- Make sure someone can let us in and lock up afterwards
Get a fixed quote
We don’t publish a price list, because every site is different. We look at your system first, from photos or on a visit, and then send you a fixed quote. To start, give us a ring on 0345 646 2711 or use the quote form.
Read more
Multi-site and managed buildings
Facilities teams in offices, schools and healthcare sites book us too in Dunsbury and across the Isle of Wight. Work can be phased by floor, building or site to keep disruption down.
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We can quote either party and send the paperwork to whoever needs it.
Aftercare tips
Think of this as the after-treatment advice, short and simple:
- Book the next check in line with the report
- Keep filter changes on time and recorded
- Report musty smells from the vents right away
- File each AHU report in the maintenance log
Restart the unit with your site team or maintenance contractor once we’ve finished. Keep an eye on the condensate drain over the next few days to confirm water is draining away.
Make the drain tray part of every maintenance visit. Catching a slow drain early stops standing water building up.
Leave it or put it right?
When the unit is clean, less dirt reaches the ducts, so the ducts and grilles stay cleaner between cleans. It also means the next inspection has less to find. Out of sight is the usual reason a rural system goes too long without attention.
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered and we will price it together.
Why book with us
- Survey first, then a fixed quote
- Trading since 2009
- Fully insured
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Read what affects the cost and our accreditations and certificates.
Questions from Dunsbury
Will you come out to Dunsbury?
Yes, Dunsbury is part of our area, however small the site. A survey first, from photos or a visit, means we arrive with the right kit.
Do you cover Dunsbury for AHU cleaning?
Yes, Dunsbury is covered. You can call 0345 646 2711 or send us an email and tell us what needs doing.
Are you insured?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
How often should an air handling unit be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. Each report suggests when the unit should next be looked at.
What types of premises do you cover?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.
Can you clean the AHU out of hours?
Yes. Evening, overnight and weekend work is all possible, so the building keeps running in the day.
What’s TR19?
BESA’s ventilation hygiene specification in two main parts: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It is not law, but it’s the benchmark.
Can we book visits on a schedule?
Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. The report from each visit recommends the next date.
Fixed quotes for AHU cleaning in Dunsbury
The survey tells us what the work involves. The main factors are:
- Whether we need access equipment or extra panels
- Whether it’s a one-off visit or part of a schedule
- When the work can happen, such as evenings, overnight or weekends
- The condition of the system
You won’t find a price list here, because the cost depends on the site in front of us. For a fixed quote, call 0345 646 2711 or send us an email, and we will talk you through it.
What we need to know
When you call or email, it’s useful to have:
- Any previous report or certificate
- When the site is open and when it’s quiet
- Any symptoms, from odd noises to smells or leaks
- Any access panels or hatches you can see
Getting a quote doesn’t take long. Send a few details and photos, and we typically reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Common problems we fix in Dunsbury
Planned maintenance often covers belts, motors and filters but not cleaning. That means a unit can tick every service box and still be carrying years of dirt.
Signs it’s time to call us include:
- Condensate trays that will not empty
- Air handling units with blocked filters
- Intake sections clogged with outdoor debris
- Odours coming through the supply air
Every job around Dunsbury ends with a record of what was cleaned and what was found.
Before booking anyone
- What hours they’ll be on site
- Which accreditations they hold, and whether you can check them
- How they set the interval to the next visit
- Whether a survey comes first
When something else is needed
AHU cleaning can’t fix everything, and we’d rather say so up front. It doesn’t solve:
- The supply and extract ducts, quoted separately
- Controls and BMS settings that run the unit
- Ventilation that was badly designed in the first place
Not sure which it is? You can call us on 0345 646 2711 or use the quote form and we’ll tell you honestly before booking.
Where we work
- Heating and cooling coils
- Supply and extract fans
- Dampers and louvres
- Drain trays
- Internal panels
- Filter sections