West Sussex · Air handling unit cleaning
Air handling unit cleaning in Duncton, West Sussex
Professional AHU cleaning in and around Duncton, booked around your opening hours and finished with a written report and pictures.
- Odours coming through the supply air
- Drain trays holding standing water
- Units needing a clean before a new tenant or handover
About our AHU cleaning in Duncton
A cooling coil drips condensate into a tray that should drain away. When the drain blocks, water sits there and the tray turns slimy, 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 dust-coated heating and cooling coils and dirty filters cutting the airflow, across dampers and louvres, internal panels and supply and extract fans.
Work in a small place like Duncton starts with agreeing access and timings, and the ventilation is inspected, cleaned and recorded the same as anywhere.
For insurers and inspectors, the record counts. That is why every job is written up in a report with pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Location
- Duncton (GU28)
- Wider area
- West Sussex
- Paperwork
- Written report with pictures
- Quote
- Fixed quote, normally within a working day
- When we work
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Fixed quotes for AHU cleaning in Duncton
Before we fix a price, we need to know a few things. We check:
- Working hours and out-of-hours timing
- Whether several sites go on one quote
- Travel, parking and unloading
- Whether it’s a one-off visit or part of a schedule
The cost depends on how big the system is, the condition it’s in and how easy it is to reach. We give you a fixed price before work begins, so you know where you stand.
What to send for a quote
A few details help us quote accurately. When you get in touch, it helps to send:
- Wide photos of the system and the area around it
- Detail shots of panels, filters and grilles
- Any previous report or certificate
- Your opening hours and when the area is out of use
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, ring 0345 646 2711 or send us an email.
FAQs for Duncton
Can ventilation in schools around Duncton be cleaned out of term?
Yes, and it’s the easiest time to do it. Food Standards Agency records list about 2 schools, colleges and universities with registered kitchens within about a mile and a half of Duncton. You can call us on 0345 646 2711, or email photos with the dates the site is empty.
Do you cover smaller places like Duncton?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
When should our AHU next be cleaned?
Inspection under TR19® Air decides it. Units in heavy use or in sensitive buildings may need attention more often.
How much does AHU cleaning cost in Duncton?
The cost depends on the size of the system, its condition, access and timing. Ask us for a fixed quote, normally ready within one working day.
What about areas you can’t get to?
They’re listed in the report, never skipped quietly. You’ll know exactly which parts weren’t reached and why, along with a quote to put access in.
Do you work evenings or weekends?
Yes. We time the work to fit the building’s hours. In hospitals and care homes, we agree timings with the site team.
Do you give a certificate after the clean?
Yes. You receive a certificate and a report showing each section before and after, including anything we think needs attention.
What do you need from me for a quote?
Where the site is, what it is and when it’s open, plus photos of the system and your last certificate or report if you have one.
Part by part
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. The impeller, its housing and the fan chamber are cleaned.
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. A clean gets air moving through the coil properly again.
Staff cleaning versus specialist work
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, which is where we come in.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.
Why deal with it now?
Leave an AHU uncleaned and the dirt doesn’t stay put. It moves on into the ductwork and out into the rooms, which is why the unit and the ducts are best cleaned together. Somewhere as small as Duncton, losing a kitchen or building to a fault is felt by everyone who uses it.
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 unsure, call us on 0345 646 2711, or email photos and we will give you an honest view and a fixed quote.
Why choose Duct Doctor in Duncton
- Photo reports with every job
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- CHAS, SafeContractor and ISO 9001
- Fixed quotes from a survey or photos
Multi-site and managed buildings
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
Multi-site operators often want one contractor and one number. We cover South East England and London, so a run of sites can go into one programme and kept to a regular schedule.
Places near Duncton
What else we do in Duncton
How the visit works
A visit follows the same order every time: protect the area, isolate whatever needs isolating, do the work, clear away and hand over the paperwork. The visit itself takes half a day to a full day per unit, with large plant planned over several shifts. Somewhere as small as Duncton, the date and timings are agreed with you well before the day.
- First the unit is surveyed, from pictures or a visit, and the scope agreed.
- We arrange the shutdown with your staff and sheet the area.
- Filters, coils, fan section and casing are cleaned in turn.
- Drain trays are cleared and cleaned and the outlet checked.
- A TR19® certificate and photo report follow the clean.
How to prepare
- Let us know about permits to work or site inductions
- Let us know about parking and loading
- Have your last certificate or report to hand
How to get a quote
We don’t publish a 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, give us a ring on 0345 646 2711 or email us.
Read more
What a clean will not put right
It’s worth knowing the limits before booking:
- Faulty motors, drives or bearings
- Ventilation that was badly designed in the first place
- Problems with the unit’s controls or sensors
If in doubt, ring 0345 646 2711 or drop us a line and we will say what we think.
What the work covers
- Filter sections
- Supply and extract fans
- Heating and cooling coils
- Internal panels
- Drain trays
- Dampers and louvres
Ventilation in Duncton buildings
We cover Duncton, about 45 miles from central London, as part of our work across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you. The nearest hospital to Duncton is Midhurst Community Hospital, about 5.4 miles north-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
Healthcare ventilation, from large hospitals like Midhurst Community Hospital (about 5.4 miles north-west) to small clinics, depends on clean filters, coils and ducts. Wherever a school like Duncton CofE Junior School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Duncton is about 10 miles north-east of Chichester, in West Sussex. Anywhere in GU28, we cover AHU cleaning for commercial sites. Our West Sussex coverage runs to 371 places, Duncton among them. For sites nearby, see our Guildford page, about 21 miles away.
We cover every part of the GU28 postcode area for AHU cleaning and the streets around it. If you need AHU cleaning at premises on Duncton High Street and Willett Close or anywhere close by, we can help. Neighbouring places we cover for AHU cleaning include East Lavington (1 mile south-west), Sutton (2 miles south-east), Rotherbridge (2 miles north), Graffham (2 miles west) and Haslingbourne (2 miles north-east). Larger places within reach include Worthing (13 miles south-east), Bognor Regis (11 miles south), Chichester (10 miles south-west), Littlehampton (10 miles south-east), Emsworth (15 miles south-west) and Rustington (11 miles south-east).
Landmarks near Duncton
In Duncton, that means kitchens and buildings near The Parish Church of St Peter and the streets around them. A little further out are Midhurst Community Hospital (5.4 miles north-west) and Coultershaw Heritage Site (1.6 miles north-east). Green spaces nearby include Bignor Hill and Graffham Common.